Toyo Tire & Rubber Co. Ltd. Patent applications |
Patent application number | Title | Published |
20160137010 | PNEUMATIC TIRE - A pneumatic tire includes a plate-like member which is attached to a treadportion inner surface by at least two attaching portions arranged with a space in a tire circumferential direction, and has a space with respect to the tread portion inner surface between the two adjacent attaching portions, wherein a through hole penetrating toward the space is formed in the plate-like member, and wherein a support member capable of supporting the plate-like member is arranged in the space. | 05-19-2016 |
20160137003 | PNEUMATIC TIRE - On a tread portion, a plurality of blocks are formed by a plurality of main grooves annularly continuously extending in a tire circumferential direction, and a plurality of transverse grooves extending in a tire width direction, intersecting these main grooves. Each block has projections on side surfaces, which form each transverse groove, at corner regions thereof. | 05-19-2016 |
20160137002 | PNEUMATIC TIRE - On a tread portion, a plurality of blocks defined by a plurality of main grooves and a plurality of transverse grooves. The main grooves annularly and continuously extend in a tire circumferential direction. The transverse grooves extend in a tire width direction so as to intersect the main grooves. The plurality of blocks include a center block located at a center in the tire width direction and having, on a surface thereof, a first groove with closed both ends and a second groove joining the first groove. | 05-19-2016 |
20160129733 | PNEUMATIC TIRE - Provided is a pneumatic tire being excellent in property of protecting the tire from a mounted tire chain or being excellent in property of discharging mud from grooves formed on the tire. | 05-12-2016 |
20160121657 | PNEUMATIC TIRE - A pneumatic tire includes: a tread portion; three or more main grooves provided on the tread portion at intervals in a tire width direction so as to extend in a tire circumferential direction; and a plurality of land portions partitioned between the main grooves adjacent to each other in the tire width direction, wherein the plurality of land portions include: ground contact areas having an arc shape in cross section in the tire width direction; and depressed portions opening to the ground contact areas, and the land portion having a larger ratio of opening surface area a of the depressed portions opening in the area between the main grooves adjacent to each other in the tire width direction with respect to surface area A of the area (a/A) has an arc-shaped ground contact area with a cross section in the tire width direction having a smaller radius of curvature. | 05-05-2016 |
20160115305 | METHOD FOR PRODUCING RUBBER COMPOSITION - A method for producing a rubber composition that can improve wet grip performance is provided. The rubber composition includes 100 parts by mass of a rubber component, from 20 to 150 parts by mass of silica, and from 1 to 10 parts by mass of a polymer gel as crosslinked diene polymer particles, wherein from 30 to 90 parts by mass of at least one modified diene rubber selected from the group consisting of a styrene-butadiene rubber, a butadiene rubber and a natural rubber, each haying introduced therein a functional group having an interaction with the silica, and from 70 to 10 parts by mass of an unmodified dine rubber are used as 100 parts by mass of the rubber component, and a polymer gel having a functional group which has an interaction with a functional group of the modified diene rubber is used as the polymer gel. | 04-28-2016 |
20160115303 | RUBBER COMPOSITION FOR VIBRATION-PROOF RUBBER - A rubber composition for vibration-proof rubber, comprising 1 to 5 parts by weight of a paraffin wax for 100 parts by weight of rubber components;
| 04-28-2016 |
20160114633 | PNEUMATIC TIRE AND METHOD FOR MANUFACTURING THE SAME - Separation in a chafer edge is suppressed, thereby improving durability of a bead part. In a pneumatic tire including a bead core embedded in a bead part, a carcass ply folded around the bead core and locked, and a chafer having a reinforcing cord embedded therein arranged so as to cover the carcass ply around the bead core, a rubber sheet is prepared using a wet masterbatch containing natural rubber and/or polyisoprene rubber, and carbon black, and the rubber sheet is interposed between a folded part of the carcass ply and an edge of the chafer overlapping the folded part. | 04-28-2016 |
20160107403 | METHOD OF MANUFACTURING CORD INCLUDED RUBBER SHEET - A method for manufacturing a cord included rubber sheet has an arrangement step and a cutting step. In the arrangement step, a band-like material of a cord included rubber sheet is supplied to a processing table, and a portion to be cut is arranged onto a groove. In the cutting step, the band-like material is cut by pressing the pressure cutting die, and the cord included rubber sheet having a predetermined length is obtained. A leading end of the pressure cutting die enters the groove and a die surface of the pressure cutting die contacts with an opening edge of the groove, in the cutting step, and a cut surface of the cord is coated with the rubber of the band-like material in a process that the die surface comes into contact with the opening edge after the leading end contacts with the band-like material. | 04-21-2016 |
20160102194 | RUBBER COMPOSITION AND PNEUMATIC TIRE - A rubber composition comprising a diene rubber, a tackifier comprising a resin having a weight average molecular weight of from 1,500 to 2,500, and a wax is disclosed. The wax contains from 20.0 to 40.0 mass % of a linear saturated hydrocarbon having from 25 to 30 carbon atoms, from 8.0 to 18.0 mass % of a linear saturated hydrocarbon having from 35 to 40 carbon atoms, and from 1.0 to 6.0 mass % of a linear saturated hydrocarbon having 45 or more carbon atoms. The amount of the tackifier added is larger than the amount of the wax added. | 04-14-2016 |
20160101655 | PNEUMATIC TIRE - A pneumatic tire is provided with a tread having a shoulder portion isolated by a main groove, and a slit formed on the shoulder portion, wherein a first tapered portion is formed on a side wall of the slit which comes into contact with the ground first when the tire is rotating, and a second tapered portion is formed on the side wall of the slit which comes into contact with the ground later, an end of the first tapered portion on the main groove side is located at a position closer to the main groove than the end of the second tapered portion on the main groove side, and the second tapered portion is formed so that a width on an opening end of the slit opening at a contact surface is wider than the width of the portion where the second tapered portion is not formed. | 04-14-2016 |
20160083555 | ARTIFICIAL SOIL PARTICLE, AND METHOD FOR PRODUCING ARTIFICIAL SOIL PARTICLE - Attention is paid to a relationship between the structure and characteristics of an artificial soil particle, which has so far been little studied, and a novel artificial soil particle having great potential to achieve various advantages, and a technique of producing such an artificial soil particle, are provided. An artificial soil particle ( | 03-24-2016 |
20160082786 | PNEUMATIC TIRE - A pneumatic tire includes a carcass ply wound up from an inner side to an outer side around bead cores, chafers wound up from an outer side to an inner side around the bead cores, and an inner liner rubber which is arranged in an inner side of the carcass ply, wherein a squeegee rubber having a higher modulus than the inner liner rubber is provided closer to the inner liner rubber side than the chafers between the carcass ply and the inner liner rubber, and the squeegee rubber is arranged so as to cover inside wound-up ends of the chafers, and is provided with a thick portion which is thicker than the inner liner rubber, and thin portions which are arranged respectively in an inner side and an outer side in the tire diametrical direction of the thick portion and are thinner than the inner liner rubber. | 03-24-2016 |
20160082400 | SEPARATION MEMBRANE FOR TREATING ACID GAS-CONTAINING GAS, AND METHOD FOR MANUFACTURING SEPARATION MEMBRANE FOR TREATING ACID GAS-CONTAINING GAS - An acid gas-containing gas treatment separation membrane is provided which can separate acid gas, such as carbon dioxide, etc., or methane gas from biogas containing acid gas and methane gas, to obtain a gas having a high methane concentration. The acid gas-containing gas treatment separation membrane includes a polysiloxane network structure having an introduced hydrocarbon group, in which unreacted residual groups present on a surface of the polysiloxane network structure have been eliminated or reduced by reaction with at least one modifying silane compound selected from the group consisting of hydrocarbon group-containing monoalkoxysilanes, hydrocarbon group-containing dialkoxysilanes, hydrocarbon group-containing monochlorosilanes, hydrocarbon group-containing dichlorosilanes, and hydrocarbon group-containing trichlorosilanes. | 03-24-2016 |
20160059642 | PNEUMATIC TIRE - In a pneumatic tire, a rubber hardness of a conductive portion is greater than a rubber hardness of a non-conductive portion, the conductive portion is formed from an inner end portion toward an outer end portion in a tire diametrical direction of the land portion by continuing a plurality of inclined portions which are inclined in relation to the tire diametrical direction, and at least one conductive portion is arranged in an outer region which is an outer side at the time of mount to a vehicle, and the inclined portion arranged at an outermost side in the tire diametrical direction is arranged so as to be inclined from an inner side toward an outer side in a tire width direction as the inclined portion goes from an inner side to an outer side in the tire diametrical direction, in the conductive portion arranged in the outer region. | 03-03-2016 |
20160059637 | PNEUMATIC TIRE - In a pneumatic tire, a tread rubber includes a recessed portion extending along a tire-circumferential direction, the recessed portion being placed at a position of a tire-outer surface superposed on an end of the belt portion or at a position of a tire-outer surface on an outer side in a tire-width direction than the former position of the tire-outer surface, an outer wound-up portion is placed closer to a belt portion than an inner wound-up portion, the outer wound-up portion is separated from the belt portion to prevent the outer wound-up portion from being superposed on the belt portion, and the outer wound-up portion is superposed on the recessed portion. | 03-03-2016 |
20160059502 | APPARATUS AND METHOD FOR MANUFACTURING RUBBER MEMBER - An apparatus for manufacturing a rubber member includes an extruder; a mouthpiece; and a support surface which faces the mouthpiece in an opposed manner. The apparatus further includes: a rubber pool portion formed between the mouthpiece and the support surface; and a closing surface having an inclined surface shape and capable of closing a moving-direction front side of the rubber pool portion. A rubber material is ejected from an ejection port in a state where the rubber pool portion is closed by the closing surface, the support surface and the mouthpiece are moved relative to each other after the rubber pool portion is filled with the rubber material, and a lamination starting end of the rubber material is pressed to the closing surface thus molding the lamination starting end into an inclined surface and, thereafter, the closing surface is moved in a direction away from the support surface. | 03-03-2016 |
20160052435 | CUSHION PAD | 02-25-2016 |
20160052384 | INSULATOR | 02-25-2016 |
20160052347 | PNEUMATIC TIRE AND METHOD OF MANUFACTURING THE SAME - Provided is a pneumatic tire having the structure where a carcass ply is wound around bead cores from the outside in the tire width direction to the inside in the tire width direction, and both end portions of an inner liner extend between beads and the carcass ply. A lightweight and highly rigid tire can be acquired. The tire can also enhance steering stability performance thereof. The pneumatic tire includes: a pair of left and right beads including bead cores | 02-25-2016 |
20160039322 | CUSHION PAD | 02-11-2016 |
20160039249 | PNEUMATIC TIRE - Provided is a pneumatic tire | 02-11-2016 |
20160039154 | INSERT MEMBER, SHEET PAD, AND METHOD FOR PRODUCING SHEET PAD - [Object] Provided is an insert member which can simplify the work for imparting magnetism. | 02-11-2016 |
20160031269 | PNEUMATIC TIRE - A pneumatic tire includes a plate-like member which is attached to a tread portion inner surface by at least two attaching portions arranged with a space in a tire circumferential direction, and has a space with respect to the tread portion inner surface between the two adjacent attaching portions, wherein a through hole penetrating toward the space is formed in the plate-like member. | 02-04-2016 |
20160031268 | RUN FLAT TIRE - A run flat tire having improved run flat durability is provided. The run flat tire has a side wall part reinforced by a side reinforcing rubber part, and the side reinforcing rubber part is formed by a rubber composition which comprises 100 parts by mass of a diene rubber containing natural rubber and polybutadiene rubber, and from 0.1 to 4.0 parts by mass of a mercaptobenzimidazole compound. | 02-04-2016 |
20160023584 | CUSHION PAD | 01-28-2016 |
20160023516 | PNEUMATIC TIRE - A pneumatic tire includes a belt layer, a belt reinforcing layer in which a plurality of reinforcing cords are arranged, four main grooves, and land portions comparted by the four main grooves, wherein in the case that the belt reinforcing layer is partitioned into five areas in a tire width direction by the four main grooves, an arrangement density of the reinforcing cord in the fifth area is higher than that of the reinforcing cord in the first area, and an arrangement density of the reinforcing cord in the second area is higher than that of the reinforcing cord in the fourth area, and wherein protruding portions having protruding heights in proportion to the arrangement densities are provided on ground surfaces of the land portions which are positioned outside in the tire diametrical direction in the areas having the higher density than that of the third area. | 01-28-2016 |
20160016441 | TIRE MOLD, MANUFACTURING METHOD OF PNEUMATIC TIRE, AND PNEUMATIC TIRE - A tire mold is provided with a groove-like saw cut in an area of a tire molding surface which comes into contact with a side surface of a tire. The saw cut comprises a pair of circumferential saw cuts arranged to be spaced in a tire diametrical direction, a grid-like saw cut which is expanded between the pair of circumferential saw cuts, and a plurality of frame-like saw cuts which are dotted between the pair of circumferential saw cuts. The frame-like saw cuts fringe a closed area which is wider than a smooth area defined by the grid-like saw cut. The grid-like saw cut surrounds the frame-like saw cuts to prevent the frame-like saw cuts from coming into contact with each other. The frame-like saw cuts are coupled to each other via the grid-like saw cut. | 01-21-2016 |
20150367687 | PNEUMATIC TIRE - A tire has a projecting portion raised from an outer surface of a side portion. A top surface of the projecting portion forms a mark. A colored portion is formed in a region defined by a profile line offset with respect to an outer edge formed by the top surface and an outer side surface. Formed on the top surface between the colored portion and the outer edge is a non-colored portion which exposes a base color of the tire. | 12-24-2015 |
20150361253 | RUBBER COMPOSITION AND METHOD FOR PRODUCING SAME - A rubber composition obtained by dry-mixing a natural rubber wet master batch yielded by mixing at least a natural rubber latex and a carbon-black-containing slurry solution with each other in a liquid phase and drying the resultant mixture, a dry rubber made mainly of a polybutadiene rubber, and an oil, wherein when the total amount of rubber components in the rubber composition is regarded as 100 parts by mass, the natural rubber is contained in an amount of 50 parts or more by mass, and the polybutadiene rubber is contained in an amount of 20 to 50 parts by mass, and the oil has a pour point of −10 C or lower, and an aniline point of 90 C or higher, and the blend amount of the oil is from 15 to 40 parts by mass for 100 parts by mass of the rubber components. | 12-17-2015 |
20150360519 | PNEUMATIC TIRE - The present invention provides a pneumatic tire including: a groove formed in a tread, the groove having a groove bottom and groove side surfaces arising from the groove bottom; and a projection projecting from the groove bottom, wherein the projection includes a low-step portion located at a low position with reference to the groove bottom and a high-step portion located at a high position with reference to the groove bottom, the low-step portion has a first-side inclined surface inclined in a depth direction of the groove along a first groove side surface of the groove and a second-side inclined surface inclined in the depth direction of the groove along a second groove side surface of the groove, and the first-side inclined surface and the second-side inclined surface are inclined in different directions from each other. | 12-17-2015 |
20150360342 | POLISHING PAD - A polishing pad includes a polishing layer, and the polishing layer is formed of a reaction cured body of a polyurethane-forming raw material composition that contains: an isocyanate-terminated prepolymer (A) which is obtained by reacting a prepolymer-forming raw material composition (a) that contains an isocyanate component and a polyester polyol; an isocyanate-terminated prepolymer (B) which is obtained by reacting a prepolymer-forming raw material composition (b) that contains an isocyanate component and a polyether polyol; and a chain extender. The polyether polyol contains a polyether polyol (C) that has a number average molecular weight of 1000 or less and a polyether polyol (D) that has a number average molecular weight of 1900 or more. The reaction cured body has a triple phase separation structure. | 12-17-2015 |
20150360341 | POLISHING PAD - A polishing pad has a polishing layer that is formed of a polyurethane foam having fine cells. The polyurethane foam is a reaction cured body of a chain extender and an isocyanate-terminated prepolymer which is obtained by reacting a prepolymer starting material composition that contains an isocyanate component, a high molecular weight polyol and an aliphatic diol. The high molecular weight polyol contains a polyalkylene glycol A that has a peak of the molecular weight distribution within the range of 200 to 300 and a polyalkylene glycol B that has a peak of the molecular weight distribution within the range of 800 to 1200. | 12-17-2015 |
20150353690 | MODIFIED DIENE POLYMER, METHOD FOR PRODUCING SAME, RUBBER COMPOSITION, AND PNEUMATIC TIRE - A modified diene polymer is obtained by decomposing a diene polymer having a carbon-carbon double bond in a main chain by oxidative cleavage of the carbon-carbon double bond to reduce a molecular weight, changing acido-basic properties of a system containing polymer fragments obtained such that the system is changed into a basic system when the system is acidic and the system is changed into an acidic system when the system is basic to combine the polymer fragments, thereby obtaining an intermediate polymer having an altered structure, and epoxidizing a carbon-carbon double bond moiety of a main chain of the intermediate polymer. | 12-10-2015 |
20150353671 | POLYURETHANE FOAM PANEL - A polyurethane foam panel which is obtained by mixing a polyol composition containing a polyol compound and a water as a foaming agent with a polyisocyanate component and causing these components to react with each other, and which has a lengthwise direction, a widthwise direction, and a thickness direction, wherein the panel has a 10% compressive strength Sb of 3 N/cm | 12-10-2015 |
20150352910 | RUN FLAT TIRE - A run flat tire having a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed by a rubber composition having a ratio (M50H/M50N) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. to tensile stress (M50N) in 50% elongation at a measurement temperature of 23° C. of from 1.0 to 1.3. A ratio (M50H/M50F) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. of the rubber composition forming the side reinforcing rubber part to tensile stress (M50F) in 50% elongation at a measurement temperature of 100° C. of a rubber composition forming a bead filler is from 0.5 to 1.3. | 12-10-2015 |
20150345135 | CONSTRUCTION STRUCTURE AND METHOD FOR PRODUCING SAME - A construction structure | 12-03-2015 |
20150343854 | RUN FLAT TIRE AND METHOD FOR PRODUCING SAME - A run flat tire having a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed by a rubber composition having a ratio (M50H/M50N) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. to tensile stress (M50N) in 50% elongation at a measurement temperature of 23° C. of from 1.0 to 1.3. Ratio (t | 12-03-2015 |
20150343604 | POLISHING PAD PRODUCTION METHOD - The present invention includes a polishing pad production method comprising a step of forming one or more grooves in a surface of a polishing layer comprising a flexible polyurethane foam, wherein the flexible polyurethane foam has an Asker D hardness of 30 or less at 25° C., and the step comprises a step 1 of cooling the polishing layer to adjust the Asker D hardness of the flexible polyurethane foam to 35 or more, and a step 2 of forming one or more grooves in the surface of the polishing layer comprising the flexible polyurethane foam, the Asker D hardness of which has been adjusted by the cooling. According to the polishing pad production method of the present invention, it is possible to provide a polishing pad production method capable of performing grooving in a polishing layer with a high precision when the polishing layer comprises a flexible polyurethane foam. | 12-03-2015 |
20150338291 | A SENSOR AND A METHOD OF MAKING THE SAME - The present invention provides a sensor having an improved sensitivity and precision, which is lighter and more flexible than conventional sensors, and a method of making the sensor. The present invention relates to a sensor comprising a resin foam containing a magnetic filler, and a magnetic sensor that detects a magnetic change caused by a deformation of the resin foam, wherein the resin foam is a polyurethane resin foam that comprises a polyisocyanate component, an active hydrogen component, a catalyst and a foam stabilizer, and wherein the resin foam has a hardness change (H | 11-26-2015 |
20150337123 | RUBBER COMPOSITION FOR ANTI-VIBRATION RUBBER - A rubber composition for anti-vibration rubber, comprising rubber components, the rubber composition comprising 4 to 40 parts by weight of the following component out of the rubber components when the whole amount of the rubber components is regarded as 100 parts by weight: a lithium catalyst-type polyisoprene rubber. | 11-26-2015 |
20150337071 | POLYURETHANE FOAM PANEL - A polyurethane foam panel which is obtained by mixing a polyol composition comprising a polyol compound and a water as a foaming agent with a polyisocyanate component, and causing these components to react with each other, and which has a lengthwise direction, a widthwise direction, and a thickness direction, wherein the foam density is 15 kg/m | 11-26-2015 |
20150328808 | METHOD FOR MANUFACTURING SEAT PAD - To provide a method for manufacturing a seat pad that can maintain the line speed set in accordance with the speed of foam molding without difficulty. In the state where a molding-surface forming member | 11-19-2015 |
20150325779 | A POLYMERIC ACTUATOR - The present invention provides a polymeric actuator which has excellent flexibility and elongation rate; low temperature dependability of physical properties such as an elastic modulus and high dielectric breakdown strength, and which can drive in a low electric field. The present invention relates to a polymeric actuator, wherein the polymeric dielectric has a storage elastic modulus at 20° C. [E′(20° C.)] determined by a dynamic viscoelastic measurement at a frequency of 1 Hz of not more than 0.5 MPa,
| 11-12-2015 |
20150321523 | PNEUMATIC TIRE - A pneumatic tire includes a plurality of linear projections which are formed linearly from an edge portion over the edge portion, in at least a partial area on an outer surface of a side wall portion and a plurality of protruding portions which are formed linearly in the area. The protruding portion is arranged so that at least a part of the protruding portion is positioned between the linear projections, and the protruding portion intersects with the linear projection and the other protruding portion at one position or less. | 11-12-2015 |
20150321150 | SEPARATION MEMBRANE FOR TREATING GAS CONTAINING ACIDIC GAS AND METHOD FOR PRODUCING SAME, METHOD FOR SEPARATING ACIDIC GAS OR METHANE GAS, AND METHOD FOR PRODUCING ACIDIC GAS OR METHANE GAS - An acidic gas-containing gas treatment separation membrane is provided which is capable of separating acidic gas or methane gas from biogas containing acidic gas, such as carbon dioxide or the like, and methane gas to obtain a gas having a high methane concentration. The acidic gas-containing gas treatment separation membrane includes a polysiloxane network structure having an introduced hydrocarbon group, doped with a metal salt having affinity for acidic gas. The polysiloxane network structure having the introduced hydrocarbon group is a composite polysiloxane network structure obtained by a reaction of a tetraalkoxysilane with a trialkoxysilane containing the hydrocarbon group. The tetraalkoxysilane is tetramethoxysilane or tetraethoxysilane. The trialkoxysilane containing the hydrocarbon group is trimethoxysilane or triethoxysilane whose Si atom is bonded with an alkyl or phenyl group having 1-6 carbon atoms. | 11-12-2015 |
20150319945 | ARTIFICIAL SOIL MEDIUM - In an artificial soil medium including a collection of artificial soil particles, provided is a technique of allowing an appropriate nutrient(s) to be released during each growth stage of plant to be grown, or highly controlling the amount of a nutrient(s), depending on a plant to be grown. An artificial soil medium | 11-12-2015 |
20150313102 | ARTIFICIAL SOIL AGGREGATE AND ARTIFICIAL SOIL MEDIUM - An artificial soil aggregate which is an aggregate of artificial soil particles is provided. When an artificial soil is formed by filling a container, such as a planter, etc., with the artificial soil aggregates, the volumetric moisture content rate and gas phase fraction of the artificial soil can be improved, and can also be maintained over a long period of time. The artificial soil aggregate is an aggregate of artificial soil particles in which a plurality of fillers having a small hole ranging from the subnanometer to the submicrometer scale are clustered together. A communication hole ranging from the submicrometer to the submillimeter scale is formed between the fillers. The artificial soil aggregate has a volumetric moisture content rate of 10 to 40% at a pF ranging from 1.7 to 2.3, and a gas phase fraction of 20 to 80% at a pF of 1.5. | 11-05-2015 |
20150306921 | RUN FLAT TIRE - A run flat tire having a side wall part reinforced by a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed from a rubber composition having a ratio (M50H/M50N) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. to tensile stress (M50N) in 50% elongation at a measurement temperature of 23° C. of from 1.0 to 1.3. | 10-29-2015 |
20150306918 | PNEUMATIC TIRE - The pneumatic tire has main grooves; land portions which are sectioned by the main grooves; paired notches which face to each other as well as being open to a tread surface; the notches being concave portions which are formed in side surfaces of two land portions which are adjacent across the main grooves; tie bars which protrudes at a predetermined height from groove bottoms of the main grooves and connect between the paired notches; and dimples which are provided in the middle in a width direction of the tie bars. The dimples are arranged at least in a notch internal region which is surrounded by wall surfaces of the notches among the tie bars. | 10-29-2015 |
20150298286 | POLISHING PAD - The purpose of the present invention is to provide a polishing pad that hardly generates scratches on a surface of a subject to be polished. This polishing pad is characterized in that: the polishing pad is provided with a polishing layer having a polishing region and a light-transmitting region; the light-transmitting region includes a surface layer positioned on the pad surface side, and at least one soft layer laminated under the surface layer, and the soft layer has a hardness lower than that of the surface layer. | 10-22-2015 |
20150298285 | MULTILAYER POLISHING PAD - A multilayer polishing pad includes a cushion layer, an adhesive member, and a polishing layer placed on the cushion layer with the adhesive member interposed therebetween, wherein the adhesive member is an adhesive layer containing a polyester-based hot-melt adhesive or a double-sided tape including a base layer and the adhesive layer provided on each of both sides of the base layer, wherein the adhesive layer or the double-sided tape has a non-adhesive region that occupies 1 to 40% of the surface area, and the polyester-based hot-melt adhesive contains 100 parts by weight of a polyester resin as a base polymer and 2 to 10 parts by weight of an epoxy resin having two or more glycidyl groups per molecule. | 10-22-2015 |
20150291480 | ARTIFICIAL SOIL MEDIUM - Provided is a technique of continuously supplying moisture to a plant to be grown over a long period of time or highly controlling the amount of moisture supplied to a plant to be grown, depending on the plant, in an artificial soil medium including a collection of artificial soil particles. An artificial soil medium | 10-15-2015 |
20150290997 | STABILIZER BUSHING - When a clipping member | 10-15-2015 |
20150290813 | CONVEYING METHOD AND CONVEYING DEVICE OF RUBBER MEMBER - In a conveying method of a rubber member for receiving the rubber member which is supplied from a supply device and is curved, and transferring the received rubber member to a supply receiving device in a curved state, the method includes a step of winding the rubber member from a leading end portion onto a mounting surface of a rotary table by forwardly rotating the rotary table and receiving the rubber member from the supply device in a state in which a rear end portion of the rubber member is not in contact with the mounting surface, a step of moving the rotary table from a receiving position to a transferring position, and a step of winding back the rubber member from the rear end portion so as to transfer the rubber member to the supply receiving device by reversely rotating the rotary table. | 10-15-2015 |
20150274048 | SEAT PAD - There is provided a seat pad | 10-01-2015 |
20150273653 | POLISHING PAD AND METHOD FOR PRODUCING SAME - An object of the present invention is to provide a polishing pad capable of maintaining a high level of dimensional stability upon moisture absorption or water absorption though it has high water absorption property and which hardly causes scratches on the surface to be polished of an object to be polished, and a method for producing the same. A polishing pad having a polishing layer comprising a polyurethane foam having fine cells, wherein the polyurethane foam includes a reaction cured body of a polyurethane raw material composition containing (1) an isocyanate-terminated prepolymer (A) obtained by reacting a prepolymer raw material composition (A′) containing an isocyanate monomer, a high molecular weight polyol (a) and a low molecular weight polyol, (2) an isocyanate-terminated prepolymer (B) obtained by reacting a prepolymer raw material composition (B′) containing a polymerized diisocyanate and a high molecular weight polyol (b), and (3) a chain extender; and the polymerized diisocyanate contains pentamers or higher oligomers in an amount of 40% by weight or less. | 10-01-2015 |
20150253207 | SENSOR AND A METHOD OF MAKING THE SAME - The present invention provides a sensor including a tactile sensor and bending sensor and a method of making the same, of which the manufacturing cost is low, the production efficiency is high and the sensor sensitivity is improved. The present invention relates to a sensor including a tactile sensor and bending sensor composed of an elastomer containing a magnetic filler and a magnetic sensor that detects a magnetic change caused by deformation of the elastomer; and a method of making the same, of which the viscosity of the mixed solution of the thermosetting elastomer precursor solution with the magnetic filler is adjusted to a specified range. | 09-10-2015 |
20150247011 | RUBBER WET MASTER BATCH PRODUCING METHOD, RUBBER WET MASTER BATCH, AND RUBBER COMPOSITION CONTAINING RUBBER WET MASTER BATCH - A method for producing a rubber wet master batch contains a coagulating step of mixing a slurry solution containing the filler and the dispersing solvent with the rubber latex solution, and coagulating the mixture, thereby producing a filler-containing rubber coagulation, and a heating step of using a uniaxial extruder to heat the filler-containing rubber coagulation to a temperature of 180 to 200 C, thereby dehydrating, drying and plasticizing the filler-containing rubber coagulation through a single step. The uniaxial extruder is an extruder having a screw, and an outer cylinder having an inner wall surface in which a slit is formed to be extended along the longitudinal direction of the outer cylinder (screw axial direction); and at least one portion of the inner wall surface of the outer cylinder is subjected to blasting treatment. | 09-03-2015 |
20150246585 | PNEUMATIC TIRE - A shoulder land portion is constructed by block rows. Shoulder lateral grooves sectionalize the block rows. The shoulder lateral grooves extend along the tire width direction in such a manner as to cut across ground contact ends. A plurality of projections is provided on a wall surface of the shoulder lateral groove. The projections protrude out of the wall surface of the shoulder lateral groove without reaching a center of a groove width of the shoulder lateral groove and are lined up in a length direction of the shoulder lateral groove in an outside area in the tire width direction from the ground contact end. The projection is formed into a triangular shape or a trapezoidal shape in its plan view and is formed into a triangular shape or a trapezoidal shape in its front elevational view. | 09-03-2015 |
20150232391 | FIBROUS-MASS PRODUCT, AND ARTIFICIAL SOIL USING FIBROUS-MASS PRODUCT - A fibrous-mass product is provided which has both water retentivity and strength, and in addition, good air permeability, and can be used as an artificial soil particle. A fibrous-mass product includes a core portion which is an aggregate of fibers, and a water permeable membrane which covers the core portion. The water permeable membrane has porous structure, and covers at least 40% of an outer surface portion of the core portion. The core portion has a water retention material. Ion exchange capability is imparted to at least one of the core portion and the water permeable membrane. The fibrous-mass product has a grain size of 1-10 mm. The amount of moisture retained in the fibrous-mass product is adjustable between a wet state in which the core portion is saturated with moisture and an air permeable state in which the core portion is not saturated with moisture. | 08-20-2015 |
20150230419 | ARTIFICIAL SOIL PARTICLE, ARTIFICIAL SOIL AGGREGATE, AND ARTIFICIAL SOIL MOLDED PRODUCT, AND GREENING SHEET, WALL GREENING PANEL AND HORTICULTURAL BLOCK USING ARTIFICIAL SOIL MOLDED PRODUCT - A high-quality and easy-to-handle artificial soil particle is provided which can exhibit well-balanced basic soil functions. In the artificial soil particle | 08-20-2015 |
20150158340 | PNEUMATIC TIRE - Provided is a pneumatic tire where a main groove extending in a tire circumferential direction and a projection projecting toward the inside of the main groove from a groove side wall of the main groove are formed on a tread portion, wherein a projecting amount of the projection from the groove side wall is decreased as the projection extends to a groove bottom of the main groove, the projection terminates at a position outside the groove bottom in a tire radial direction, and a length of the projection along the tire circumferential direction is shortened as the projection extends to a distal end side of the projection in a projecting direction. | 06-11-2015 |
20150158214 | METHOD OF MANUFACTURE OF SEAT PAD - A three-dimensional mesh-like body is disposed on a molding face of a lower mold onto which a liquid raw material of flexible foam is poured. An upper mold is laid over the lower mold to form a cavity, a projection projected on the upper mold toward the cavity is contacted with the three-dimensional mesh-like body, and the three-dimensional mesh-like body is fixed. The three-dimensional mesh-like body is attached and fixed to a front surface of a pad main body, so that the three-dimensional mesh-like body can be prevented from being displaced with respect to the pad main body. Moreover, the position of the three-dimensional mesh-like body can be prevented from being displaced in the process of foaming the liquid raw material because of the projection, and a vent hole can be formed on the pad main body. As a result, a sweaty feeling can be suppressed. | 06-11-2015 |
20150158213 | METHOD OF MANUFACTURE OF SEAT PAD - A tubular lower mold partitioning wall is erected on a lower mold, and a three-dimensional mesh-like body is disposed with a part of a side face exposed with respect to the lower mold partitioning wall. When a pad main body is molded by foaming a liquid raw material, the mesh-like body is penetrated through the pad main body in a thickness direction. Since the mesh-like body is disposed with a part of the side face exposed with respect to the lower mold partitioning wall, the liquid raw material is hardened between the fibers on the side face of the mesh-like body, and the side face is attached to the pad main body. Therefore, it is possible that the mesh-like body is not easily displaced with respect to the pad main body while suppressing a sweaty feeling. | 06-11-2015 |
20150151591 | PNEUMATIC TIRE - There is provided an pneumatic tire including a pair of left and right beads each including a bead core and a bead filler, and a carcass ply extending between the pair of beads, wherein the carcass ply is wound up around the bead core from the outside to the inside in the widthwise direction of the tire, and an end portion of the wind-up portion of the carcass ply is provided with notches at a plurality of positions in the circumference direction of the tire. | 06-04-2015 |
20150151585 | PNEUMATIC TIRE - A pneumatic tire includes a tread having a pattern formed thereon, in which the tread includes at least two main grooves extending in the tire circumferential direction; a plurality of lateral slits that are each a groove extending in a direction intersecting the tire circumferential direction formed, in at least one of ribs excluding the shoulder ribs formed in the at least two main grooves, so as to be aligned in the tire circumferential direction; and a slit bottom lateral sipe formed at the bottom of every two in the tire circumferential direction of the plurality of lateral slits aligned in the tire circumferential direction. | 06-04-2015 |
20150137405 | METHOD FOR MANUFACTURING SEAT PAD - A pad main body is bonded integrally with an inner pad while covering the front side of the inner pad. A back-side reinforced fabric located on the back side of the pad main body and the inner pad is integrally bonded on the back side of the inner pad and the pad main body by impregnation of foamed synthetic resin materials constituting the inner pad and the pad main body. This allows impregnation of the foamed synthetic resin materials in the back-side reinforced fabric located on the back side of the inner pad and the pad main body. This consequently allows providing a high hardness on the back side of the inner pad while ensuring hardness on the back side of the pad main body. | 05-21-2015 |
20150136309 | STRIP RUBBER ADHERING METHOD AND STRIP RUBBER ADHERING APPARATUS - A strip rubber adhering method includes: extruding strip rubber of a shape having an apex portion in cross section from an extruder and moving the same forward toward a drum; pressing a surface of the strip rubber on the apex portion side by a pressure bonding roller, adhering the strip rubber to the drum, moving relatively the drum and the extruder with respect to each other in an axial direction of the drum, and winding the strip rubber around the drum in a spiral manner; and exposing the surface of the strip rubber on the apex portion side to wind from a blowing apparatus in the vicinity of a position of adhesion of the strip rubber to the drum and cooling the surface of the strip rubber on the apex portion side. | 05-21-2015 |
20150133592 | RUBBER WET MASTERBATCH - A rubber wet masterbatch obtained, using at least a carbon black, a dispersing solvent, and a latex solution of a rubber as raw materials, the carbon black being a carbon black having an iodine adsorption number of 41 mg/g or less, and the rubber wet masterbatch being obtained through the following process: a process in which at the time of dispersing the carbon black into the dispersing solvent, at least one portion of the rubber latex solution is added to the carbon-black-dispersed solvent to produce a slurry solution comprising the carbon black to which rubber latex particles adhere, subsequently the slurry solution is mixed with the rest of the rubber latex solution, and next the mixture is solidified and dried. | 05-14-2015 |
20150132422 | CLIP FIXING JIG - A clip fixing jig for fixing a clip member in a molding die for molding a seat pad has a wall part erected along a whole outer peripheral edge of a bottom part thereof. The wall part forms, above the bottom part, an accommodation space for accommodating extending parts. The clip fixing jig has fixing parts for detachably fixing a clip member, so that a clip member can be fixed to the clip fixing jig by inserting the clip member in the accommodation space. With a clip fixing jig provided in a molding die, a seat pad can be formed by insert molding, so that workability in clip member fixing work is improved. | 05-14-2015 |
20150128671 | ARTIFICIAL SOIL AND METHOD OF MAKING THE SAME - The present invention provides as alternatives to natural soil (1) a plant growable artificial soil only by supplying water (such as tap-water), which has excellent fertilizer retainability by comprising a granulated material of fertilizer retainable fillers, and a method of making the artificial soil; (2) an artificial soil, which only specified fertilizer components are adsorbed by using a material having high fertilizer retainability; and (3) a granulated plant growing material having excellent fertilizer retainability so as to have both high cation exchange capacity and anion exchange capacity, excellent water retaining capacity with respect to water, which can be easily absorbed by the plants, and excellent breathability so as to return to high breathable state in a short time even if retaining water until reaching a saturated state. | 05-14-2015 |
20150119491 | RUBBER COMPOSITION - A rubber composition includes a diene rubber containing at least a polybutadiene rubber produced by use of a rare earth element based catalyst; a carbon black in an amount of 10 to 99 parts by mass for 100 parts by mass of the diene rubber; and a dihydrazide compound in an amount of 0.1 to 5.0 parts by mass for the same. | 04-30-2015 |
20150114540 | PNEUMATIC TIRE - A pneumatic tire according to the invention includes: a pair of left and right beads 3 each including a bead cores 3 | 04-30-2015 |
20150101729 | PNEUMATIC RADIAL TIRE - The invention provides a pneumatic radial tire which improves durability by lowering breakdowns in both of a ply end and a wind-up portion without an increase of weight and manufacturing cost. The pneumatic radial tire has a carcass layer which is provided between a pair of bead portions and is locked in a state in which end portions are wound up to the bead cores. The carcass layer is constituted by a first ply, a second ply and a third ply which are laminated one by one from an inner side to an outer side in a tire radial direction in a tire equator. The first ply and the third ply are wound up to the bead cores. The second ply terminates in a state in which the second ply is interposed between the first ply and the third ply, without reaching the bead cores. | 04-16-2015 |
20150097314 | TIRE CURING MOLD AND METHOD OF MANUFACTURING TIRE - A tire curing mold comprises a plurality of vent holes provided on a side forming surface coming into contact with a side wall portion of a tire. The side forming portion is provided with a recess portion which is recessed toward an outer side in a tire width direction from a profile of the side forming surface. A diameter of a vent hole which is open within the recess portion is set to be larger than a diameter of a vent hole which is open on the profile of the side forming surface. | 04-09-2015 |
20150090381 | PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE - A method of manufacturing a pneumatic tire has a winding step of forming a rubber ribbon winding body constructing a tread rubber by spirally winding a rubber ribbon obtained by co-extruding a first rubber and a second rubber which are different in hardness. The first rubber is mainly arranged in a first area by making a cross sectional area ratio of the first rubber greater than that of the second rubber. The second rubber is mainly arranged in a second area by making the cross sectional area ratio of the first rubber smaller than that of the second rubber. A portion in which the cross sectional area ratio of the first rubber becomes smaller by smaller is provided from the first area toward the second area. The rubber ribbon retaining a compound interface is superposed and wound to at least a part of the second area. | 04-02-2015 |
20150083297 | VULCANIZATION-BONDED BODY OF THERMOPLASTIC POLYESTER RESIN MEMBER AND RUBBER MEMBER, AND METHOD FOR PRODUCING SAME - In a vulcanization-bonded body of a rubber member and a resin member such as a resin film and a method for producing the vulcanization-bonded body, adhesiveness between the resin member and the rubber member is improved without adding another step. In a vulcanization-bonded body which is composed of a resin member that is formed of a thermoplastic polyester and a rubber member that is bonded to the resin member by vulcanization, the resin member contains a resorcin-based formaldehyde condensate and the rubber member contains a melamine-formaldehyde resin. | 03-26-2015 |
20150080493 | RUBBER COMPOSITION FOR TIRE TREAD AND PNEUMATIC TIRE - A rubber composition for a tire tread comprising 100 parts by mass of a diene rubber, 10 to 150 parts by mass of a reinforcing filler, and 0.1 to 30 parts by mass of an acid-treated silk powder having a 90% volume particle diameter (D90) of 500 μm or less. A pneumatic tire having a tread comprising the rubber composition. | 03-19-2015 |
20150059253 | POLISHING PAD - A polishing pad capable of maintaining a high level of dimensional stability during absorption of moisture or water includes a polishing layer including a polyurethane foam having fine cells, wherein the polyurethane foam includes a cured product of a reaction of an isocyanate-terminated prepolymer (a), a polymerized diisocyanate, and a chain extender, and the isocyanate-terminated prepolymer (a) includes an isocyanate monomer, a high molecular weight polyol (a), and a low molecular weight polyol. A method for manufacturing such a polishing pad includes mixing a first component containing an isocyanate-terminated prepolymer with a second component containing a chain extender and curing the mixture to form a polyurethane foam. The pad so made is used in the manufacture of semiconductor devices. | 03-05-2015 |
20150051338 | METHOD FOR PRODUCING RUBBER COMPOSITION - A method for producing a rubber composition, comprising a first mixing step of causing a diene rubber, a carbon black, and a dihydrazide compound to react with each other in the presence of no silica while the three of the diene rubber, the carbon black, and the dihydrazide compound are kneaded, and a second mixing step of adding a silica to the kneaded product yielded through the first mixing step, and then mixing the silica with the kneaded product. | 02-19-2015 |
20150038643 | SILICON COMPOUND AND METHOD FOR PRODUCING SAME, AND USE THEREOF - A novel silicon compound capable of initiating radical polymerization is provided. The silicon compound is represented by the following general formula (1) | 02-05-2015 |
20150031795 | METHOD FOR PRODUCING RUBBER COMPOSITION - After step (I) of kneading a diene rubber and a carbon black to be mixed with each other, and then discharging the resultant mixture containing the diene rubber and the carbon black from an internal mixer, step (II) of kneading the mixture again in the internal mixer to crush a re-aggregate of the carbon black in the mixture, and step (III) of charging the dihydrazide compound into the internal mixer, and kneading the mixture and the dihydrazide compound to be mixed with each other are carried out. The period of step (II) for the kneading is 15 seconds or longer, and the rotating speed of the stirring rotor of the internal mixer is 35 rpm or more. The period of step (III) for the kneading is 40 seconds or longer, and the rotating speed of the stirring rotor of the internal mixer is from 15 to 25 rpm. | 01-29-2015 |
20150020940 | PNEUMATIC TIRE - A pneumatic tire includes a tread surface which is sectioned into a center area, a mediate area arranged in an outer side of the center area, and a shoulder area arranged in an outer side of the mediate area, wherein inclined grooves are formed spaced apart in a tire circumferential direction, the inclined grooves continuously extending from the mediate area to the shoulder area, in blocks in the mediate area and the shoulder area sectioned by the inclined grooves, an angle of inclination of a side wall on a leading side with respect to a normal direction of the tread surface is greater than an angle of inclination of a side wall on a trailing side with respect to a normal direction of the tread surface, and a plurality of dimples are formed in the side wall on the leading side of the block in the mediate area. | 01-22-2015 |
20150018449 | METHOD FOR PRODUCING RUBBER MASTER BATCH - A method for producing a rubber master batch, comprising: blending, into a diene rubber, 0.1 to 0.5 parts by mass of a peptizing agent, 0.1 to 5.0 parts by mass of a dihydrazide compound, and 10 to 35 parts by mass of a carbon black simultaneously for 100 parts by mass of the diene rubber, and kneading the resultant blend. | 01-15-2015 |
20150014906 | ANTI-VIBRATION DEVICE - A vibration damper, which enables a spring constant in the axial direction to be increased while reducing a spring constant in the prying direction and a spring constant in the direction perpendicular to the axial direction, is provided. With dividing surfaces of first rubber parts ( | 01-15-2015 |
20150011677 | RUBBER COMPOSITION AND METHOD FOR PRODUCING SAME - A rubber composition obtained by dry-mixing a natural rubber wet master batch yielded by mixing at least a natural rubber latex and a carbon-black-containing slurry solution with each other in a liquid phase and drying the resultant mixture, a dry rubber made mainly of a polybutadiene rubber, and an oil, wherein when the total amount of rubber components in the rubber composition is regarded as 100 parts by mass, the natural rubber is contained in an amount of 50 parts or more by mass, and the polybutadiene rubber is contained in an amount of 20 to 50 parts by mass, and the oil has a pour point of −10 C or lower, and an aniline point of 90 C or higher, and the blend amount of the oil is from 15 to 40 parts by mass for 100 parts by mass of the rubber components. | 01-08-2015 |
20150008618 | METHOD FOR FORMING CYLINDRICAL RUBBER MEMBER - A method for forming a cylindrical rubber member includes bringing a die | 01-08-2015 |
20140378031 | POLISHING PAD - The purpose of the present invention is to provide: a polishing pad which has improved dressing properties, while maintaining the hardness; or a polishing pad which does not easily make a scratch on the surface of an object to be polished, while having improved dressing properties. A polishing pad of the present invention is characterized by having a polishing layer that is formed of a polyurethane resin foam or an unfoamed polyurethane resin, and is also characterized in that the polyurethane resin foam or the unfoamed polyurethane resin contains, as starting material components, (A) an isocyanate component, (B) a polyol component and (C) an aromatic compound that has one hydroxyl group and/or an aromatic compound that has one amino group. | 12-25-2014 |
20140373990 | PNEUMATIC TIRE - Tread rubber forms a ground contact surface. When the ground contact surface is divided into two parts: a mounting inner side and a mounting outer side, the tread rubber has an inner cap part that forms an inner ground contact surface and is produced from non-conductive rubber, and an outer cap part that forms an outer ground contact surface. The inner cap part has a branched conductive part that is formed from conductive rubber ranging from the ground contact surface of a mounting outer end of the inner cap part to the side surface or bottom surface of a mounting inner end while branching off at a plurality of positions. The outer cap part does not have branched conductive rubber. The branched conductive part is formed from the conductive rubber with a rubber hardness different from that of the non-conductive rubber that forms the inner cap part. | 12-25-2014 |
20140367008 | PNEUMATIC TIRE - An objective of the present invention is to provide a pneumatic tire whereby primarily rolling resistance is minimized and noise is minimized. This pneumatic tire tread rubber ( | 12-18-2014 |
20140364536 | PROCESS FOR PRODUCING MODIFIED POLYMER, DIENE POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE - A polymer having a carbon-carbon double bond in a main chain is decomposed by subjecting the carbon-carbon double bond to oxidative cleavage using an oxidizing agent such as periodic acid to decrease the molecular weight, polymer chains of the decomposed polymer are combined by changing acido-basic properties such that a system containing the decomposed polymer becomes basic when acidic and becomes acidic when basic, and a modified polymer in which the structure has been changed is obtained. By this, a functional group can be incorporated in the main chain structure of a polymer. A rubber composition comprising a rubber component containing the modified polymer, and a filler compounded therewith, and a pneumatic tire comprising the rubber composition are provided. | 12-11-2014 |
20140360640 | PNEUMATIC TIRE - Blocks are formed on a tread surface of a pneumatic tire by main grooves extending in the tire circumferential direction and lateral grooves which intersect with the main grooves. The blocks include: center blocks which are positioned in a center region in the tire width direction; shoulder blocks which are positioned on both side regions in the tire width direction; and mediate blocks which are positioned in an intermediate region between the center blocks and the shoulder blocks. The lateral groove formed between the shoulder blocks and the lateral groove formed between the mediate blocks which are positionally displaced from each other in the tire circumferential direction are connected to each other via the main groove by an auxiliary block. | 12-11-2014 |
20140360639 | PNEUMATIC TIRE - Blocks are formed on a tread surface of a pneumatic tire by main grooves extending in the tire circumferential direction and lateral grooves which intersect with the main grooves. A size of the block in the tire width direction of the tread surface is set larger than a size of the block in the tire circumferential direction of the tread surface. The blocks include: center blocks which are positioned in a center region in the tire width direction; shoulder blocks which are positioned on both side regions in the tire width direction; and mediate blocks which are positioned in an intermediate region between the center blocks and the shoulder blocks. A recessed portion is formed on an approximately center portions of the shoulder blocks and the mediate blocks excluding the center blocks. | 12-11-2014 |
20140332143 | PNEUMATIC TIRE FOR HEAVY LOAD, AND METHOD FOR PRODUCING THE SAME - In the method according to the invention for producing a pneumatic tire for heavy load, it is important that the following vulcanizing conditions are satisfied, the temperature for vulcanizing the tread region is 140° C. or lower, a vulcanization calorie given to the bead regions is a calorie corresponding to a time of 25 to 40 minutes in terms of the vulcanization calorie at a vulcanizing temperature of 140° C., and the ratio of a vulcanization calorie given to the front surface of the tread region to the vulcanization calorie given to the bead regions is 0.6 or more and less than 1.0, these vulcanization calories being each in terms of the vulcanization calorie at the vulcanizing temperature of 140° C. | 11-13-2014 |
20140326850 | ANTI-VIBRATION UNIT - An anti-vibration unit, which enables a reduction in man-hours to be achieved during manufacturing and a reduction in the number of parts, is provided. A boss member of an anti-vibration device is pressed into a press-fitting section of a second bracket so as to be firmly fixed. The omission of the bolt enables a corresponding reduction in the number of parts. Moreover, by omitting the bolt in this way, there is no need to form a female threaded section on the boss member of the anti-vibration device, thus enabling a corresponding reduction in man-hours during manufacturing. In addition, when chemically treating the boss member of the anti-vibration device, it is unnecessary to implement a step for protecting the female threaded section with a masking bolt, thus eliminating the need to attach and detach the masking bolt, which in turn enables a corresponding reduction in man-hours during manufacturing. | 11-06-2014 |
20140311640 | PNEUMATIC TIRE - A pneumatic tire is provided with a center land section formed between center main grooves, a pair of intermediate land sections formed between shoulder main grooves and the center main grooves, and a pair of shoulder land sections formed on the outside of the shoulder main grooves in a tire width direction. The center land section and the intermediate land sections swell outwardly in a tire radial direction from a basic tread profile line that smoothly connects ground contact surfaces of the pair of shoulder land sections. The radius of a peak section of the intermediate land sections is equal to or smaller than the radius of a peak section of the center land section, and the thickness of the intermediate land sections is greater than the thickness of the center land section. | 10-23-2014 |
20140284858 | ANTIVIBRATION DEVICE - [Problem to be Solved] | 09-25-2014 |
20140283965 | PNEUMATIC TIRE - A pneumatic tire is provided with a pair of first land sections formed between shoulder main grooves and center main grooves, a second land section formed between the center main grooves, and a pair of shoulder land sections formed on the outside of the shoulder main grooves in a tire width direction. The first land sections and the second land section swell outward in the tire radial direction from a basic tread profile line that smoothly connects ground contact surfaces of the pair of shoulder land sections. A swelling amount of the first land sections that swell from the basic tread profile line is larger than a swelling amount of the second land section. | 09-25-2014 |
20140262048 | CONVEYING DEVICE - A conveying device which receives a curved rubber member supplied from a supply device and delivers the rubber member to a supply target device, the conveying device including a rotary table having an annular mounting surface on which the curved rubber member is placed, and a moving mechanism capable of moving the rotary table between a receiving position and a delivery position, wherein the rotary table is rotated at the receiving position to roll up the rubber member, is moved from the receiving position to the delivery position, and is reversely rotated at the delivery position to roll back the rubber member. | 09-18-2014 |
20140260863 | CONVEYING DEVICE - A conveying device for conveying a rubber member extruded in a curved state from an extrusion device, the device including a support and a plurality of rollers which are spirally arranged around the support to constitute a spiral conveying path and which rotate while supporting a lower surface of the rubber member, wherein an outer diameter of each of the rollers increases from one end to the other end in an axial direction, the one end being rotatably fixed to the support, and the plurality of rollers include drive rollers which rotate and drive. | 09-18-2014 |
20140255531 | METHOD OF ESTIMATING LIFE OF GEAR PUMP AND RUBBER EXTRUSION APPARATUS - A method of estimating a life of a gear pump includes detecting the number of rotations of a gear and a discharge amount of rubber being extruded from the gear pump; calculating, based on the number of rotations and the discharge amount of the rubber which are detected, a discharge efficiency η (=T1/T) that is a ratio of a measured value T1 of a discharge amount of the rubber that is extruded from the gear pump per one rotation of the gear to a theoretical value T; and estimating the life of the gear pump based on the calculated discharge efficiency η. | 09-11-2014 |
20140252673 | METHOD FOR MOLDING ANNULAR MEMBER AND APPARATUS FOR MOLDING ANNULAR MEMBER - The object of the present invention is to provide a method and an apparatus for molding an annular member capable of accurately molding an annular member into a predetermined cross-sectional shape even if the annular member has a thick-walled inner peripheral part and a thin-walled outer peripheral part. The method for molding a bead filler ( | 09-11-2014 |
20140249252 | METHOD FOR PRODUCING RUBBER WET MASTERBATCH, RUBBER WET MASTERBATCH, AND RUBBER COMPOSITION INCLUDING RUBBER WET MASTERBATCH - A method for producing a rubber wet masterbatch includes a solidifying step of mixing a slurry solution containing a filler and a dispersing solvent with a rubber latex solution, and solidifying the resultant mixture to produce a filler-containing rubber solidified product, a dehydrating step of using a first uniaxial extruder to dehydrate the filler-containing rubber solidified product while the solidified product is heated into the range of 100 to 180° C., thereby producing a rubber wet masterbatch, and a drying plasticizing step of using a second uniaxial extruder to plasticize the rubber wet masterbatch while the masterbatch is heated into the range of 120 to 180 C, thereby producing the rubber wet masterbatch further decreased in water content by percentage. The method does not have cooling step between the dehydrating step and the drying plasticizing step. | 09-04-2014 |
20140249250 | RUBBER COMPOSITION FABRICATION METHOD AND RUBBER COMPOSITION - A method for producing a rubber composition containing a rubber wet master batch has a masticating process. The masticating process comprises step 1 of charging the rubber wet master batch into an enclosed kneading chamber that has a stirring rotor showing a rotation speed controllable automatically through a control unit and that is capable of detecting and outputting an internal temperature, step 2 of setting a first control time and a first target temperature in the control unit, and step 3 of stirring the inside of the kneading chamber while making a PID control for adjusting an actually measured temperature in the kneading chamber to the first target temperature through the control unit on the basis of information on the actually measured temperature and the first target temperature, thereby automatically controlling the rotation speed, until the first control time elapses after the completion of the two steps. | 09-04-2014 |
20140238570 | AIR PERMEATION RESISTANT FILM AND PNEUMATIC TIRE - Provided is an air permeation resistant film in which flexibility can be imparted to the film without remarkably increasing the proportion of a rubber constituting a dispersed phase. An air permeation resistant film comprising (A) a thermoplastic polyester elastomer which comprises a block copolymer containing a polyester as a hard segment and has a melting point of from 180 to 230° C., and (B) a rubber, in a mass ratio (A)/(B) of from 90/10 to 40/60, wherein the component (A) and the component (B) are melt-kneaded to perform dynamic crosslink, thereby forming a continuous phase composed of the component (A) and a dispersed phase composed of the component (B), and the film has an air permeation coefficient at 80° C. of 5×10 | 08-28-2014 |
20140238566 | PNEUMATIC TIRE - A pneumatic tire includes a tread having at least one main groove and a plurality of ribs extending in the tire-circumferential direction. At least one of the ribs has a plurality of narrow grooves formed at intervals in the tire-circumferential direction. At least one intermittent sipe is formed corresponding to at least one of the narrow grooves. The narrow grooves are grooves each having a portion extending substantially along the tire-circumferential direction and having a groove width smaller than the at least one main groove. The at least one intermittent sipe has a plurality of holes that are intermittently formed, and at least one solid part located between adjacent two of the holes. The holes and the solid part are arranged in a direction intersecting the narrow grooves. The intermittent sipe intersects the corresponding narrow groove in the at least one solid part. | 08-28-2014 |
20140238562 | PNEUMATIC TIRE - A tire has a tread rubber and a conductive portion. The conductive portion is formed so as to connect the ground surface and a side surface of a side end portion of the tread rubber in a tire meridian circle cross section. The conductive portion having a rubber hardness which is different from the tread rubber, and has a stem portion and a plurality of branch portions. The stem portion heads for an inner side in the tire width direction from the side surface of the side end portion of the tread rubber so as to terminate at an inner portion of the tread rubber. The plurality of branch portions are branched from a plurality of positions of the stem portion so as to head for an outer side in the tire width direction and be exposed to an outer surface of the tire. | 08-28-2014 |
20140213151 | POLISHING PAD - An object of the invention is to provide a polishing pad that is prevented from slurry leaks and has high optical detection accuracy. The present invention relates to a polishing pad comprising a polishing region, a cushion layer, and a support film layered in this order, wherein a light-transmitting region is provided on the support film and in an opening part that passes through the polishing region and the cushion layer; the light-transmitting region has a peripheral part and a recessed part on the surface of a polishing platen-side; the support film is layered on the peripheral part; and the support film is not layered on the recessed part, which remains open. | 07-31-2014 |
20140202077 | PLANT CULTIVATION METHOD, AND CULTIVATION CONTAINER AND CULTIVATION DEVICE USED THEREFOR - A purpose of the present invention is to provide a plant cultivation method with which the growth of plants can be promoted by adjusting the environment within a culture medium, and to provide a plant cultivation container with which this cultivation method can be easily and effectively performed. The present invention provides a plant cultivation method for plants which are raised in a culture medium, which cultivation method is characterized in that water is only supplied to the plants from the side of the culture medium, and provides a plant cultivation container and a plant cultivation device used therefor. | 07-24-2014 |
20140187669 | METHOD FOR PRODUCING RUBBER COMPOSITION - A method for producing a rubber composition containing by weight 5 to 95 parts of natural rubber (NR), 95 to 5 parts of chloroprene rubber (CR), and 20 to 90 parts of carbon black (CB), using a kneading machine, includes a first step of producing a master batch (M1) containing NR and CB; a second step of producing a master batch (M2) containing CR and CB, and a third step of mixing the M1 and M2 with each other to produce a master batch (M3) containing NR, CR, and CB, wherein the amount of CB contained in the M2 is from 40 to 70% by weight relative to the total amount of CB in the rubber composition, and when the M2 is discharged from the kneading machine after the second step, the actually measured temperature of the rubber composition is from 100 to 130° C. | 07-03-2014 |
20140175255 | VIBRATION ISOLATION DEVICE - To provide a vibration isolation device capable of preventing the sealing performance in liquid filling work from deteriorating and capable of simplifying maintenance of apparatuses in relation with the liquid filling work. | 06-26-2014 |
20140174612 | PNEUMATIC TIRE - A pneumatic tire has a carcass ply and a side wall rubber provided in outer sides of the carcass ply. The carcass ply has joint portions obtained by overlapping end portions of ply members so as to join. At least one of the joint portions is provided with a rubber tape. The rubber tape is interposed between the end portions of the ply members and is exposed to a surface of the carcass ply. A topping rubber of the carcass ply and the side wall rubber are formed by a nonconductive rubber. The rubber tape is formed by a conductive rubber. A conductive route getting to the rubber tape from a ground-contacting surface is formed in a tread portion. A conductive route getting to the rubber tape from an outer surface of a bead portion is formed in the bead portion. | 06-26-2014 |
20140171566 | ALKOXYSILYL GROUP-CONTAINING AZO COMPOUND AND RUBBER COMPOSITION USING THE SAME - An alkoxysilyl group-containing azo compound represented by the following formula (I), a method for easily obtaining the alkoxysilyl group-containing azo compound, and a rubber composition having improved heat build-up characteristic and the like obtained using the azo compound are provided. The alkoxysilyl group-containing azo compound is preferably obtained by reacting a compound represented by the following formula (2) and a compound represented by the following formula (3); | 06-19-2014 |
20140158262 | PNEUMATIC TIRE - Provided is a pneumatic tire where a plurality of main grooves extending along the tire circumferential direction, lateral grooves extending in the direction inclined with respect to the tire width direction, and land portions partitioned by the main grooves and the lateral grooves are formed in a tread portion. The land portion includes an obtuse angle portion defined at an obtuse angle by the main groove and the lateral groove, and an acute angle portion defined at an acute angle by the main groove and the lateral groove. A plurality of holes are formed in a side wall of the land portion facing the main groove at intervals in the tire circumferential direction. The holes formed on an obtuse angle portion side are arranged at positions closer to a ground contact surface of the land portion than the holes formed on an acute angle portion side. | 06-12-2014 |
20140155509 | POLYOL COMPOSITION FOR RIGID POLYURETHANE FOAM AND PRODUCTION METHOD FOR RIGID POLYURETHANE FOAM - A polyol composition for a rigid polyurethane foam, which comprises polyol compounds, and water as a blowing agent, and which is mixed with a polyisocyanate component to react therewith, and thereby forming the rigid polyurethane foam, wherein the polyol compounds comprise a polyether polyol (A) which is a polymer made from an alkylene oxide and has an average functional group number of 2 to 4 and a weight-average molecular weight of 3000 to 8000, and a short glycol (B) having a molecular weight less than 250, and the water is contained in an amount of 20 to 100 parts by weight for 100 parts by weight of the polyol compounds. | 06-05-2014 |
20140150944 | PNEUMATIC TIRE - The invention provides a pneumatic tire which can reduce a rolling resistance while maintaining an wear resistance. Among a cap portion in a center area, at least the cap portion of a center land portion is provided with a cap front layer which includes a surface, and a cap inner layer which is laminated in an inner periphery of the cap front layer. A loss tangent of the cap front layer is set to be smaller than a loss tangent of the cap inner layer and be smaller than a loss tangent of the cap portions in the shoulder areas. | 06-05-2014 |
20140148524 | POLYURETHANE FOAM PANEL AND PRODUCTION METHOD FOR POLYURETHANE FOAM PANEL - A polyurethane foam panel, obtained by mixing a polyol composition comprising polyol compounds, and water as a blowing agent with a polyisocyanate component to react therewith, wherein the polyol compounds comprise a polyether polyol (A) which is a polymer made from an alkylene oxide and has an average functional group number of 2 to 4 and a weight-average molecular weight of 3000 to 8000, and a short glycol (B) having a molecular weight less than 250, the water is contained in an amount of 20 to 100 parts by weight for 100 parts by weight of the polyol compounds, and the thickness direction of the polyurethane foam panel is substantially perpendicular to the foamed direction of cells in the foam or at the time of mixing and reacting the polyol composition and the polyisocyanate component with each other, the isocyanate index of the component is 30 or less. | 05-29-2014 |
20140138006 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF THE SAME - The invention provides a pneumatic tire which suppresses one-sided flow of a tire caused by ply steer without deteriorating uniformity. A tread rubber is formed by a ribbon rubber which is wound around a tire rotating axis continuously from a winding start end to a winding terminal end. Positions of the winding start end and the winding terminal end are different from each other in a tire width direction. In the case that a belt incline side is set to a side in which a cord of a belt ply in the outermost side in a tire diametrical direction among a plurality of belt plies is inclined to a tire peripheral direction, the ribbon rubber is wound in a posture in which the ribbon rubber is inclined to an opposite side to the belt incline side in relation to the tire peripheral direction. | 05-22-2014 |
20140128525 | TIRE MEMBER AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a tire member, containing a step (A) for producing a mixture containing a diene rubber component, an inorganic filler, a peptizer and a thiosulfuric acid compound containing an amino group, and a step (B) for mixing the mixture, a sulfur component and a vulcanization accelerator, wherein a tire member having improved abrasion resistance, tear strength and flex fatigue resistance is obtained, and the tire member are provided. A premix containing 100 parts by mass of the diene rubber component, from 0.1 to 0.5 parts by mass of the peptizer and 0.2 parts by mass or more of the thiosulfuric acid compound containing an amino group, obtained under a condition in which a temperature during mixing is maintained within a range of from 145 to 170° C. for 20 seconds or more and a temperature at completion of the mixing is 170° C. or lower. | 05-08-2014 |
20140128498 | TIRE MEMBER AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a tire member, that improves various performances such as abrasion resistance, tear strength, fatigue resistance and the like of the tire member in good balance is provided. The method includes a step (A) for mixing at least a rubber component, a filler and a thiosulfuric acid compound containing an amino group, and a step (B) for mixing the mixture obtained by the step (A), a sulfur component, and a vulcanization accelerator, wherein the thiosulfuric acid compound containing an amino group is added in an amount of 0.2 parts by mass or more to 100 parts by mass of the rubber component in the step (A), and a temperature of the mixture during mixing is maintained within a range of from 145 to 170° C. for 20 seconds or more in the step (A). | 05-08-2014 |
20140117597 | AIR SPRING FOR RAILROAD CAR - An air spring for railroad cars includes an air spring part formed by an upper support on a vehicle body side, an intermediate support arranged therebelow, and a diaphragm made of rubber and extending between the upper support and the intermediate support; and an elastic mechanism b formed by a rubber mass | 05-01-2014 |
20140090765 | PNEUMATIC TIRE - A pneumatic tire has a bead filler, a carcass ply, a side wall rubber and a rim strip rubber. The rim strip rubber has a main portion arranged in an outer side in a tire width direction of the bead filler, and a thin portion arranged between the carcass ply and the side wall rubber. The main portion forms an outer surface of a bead portion. The thin portion extends in the tire diametrical direction at a substantially fixed thickness. An upper end of the thin portion is positioned in an outer side in the tire diametrical direction than an upper end of the bead filler and in an inner side in the tire diametrical direction than a roll-up end of the carcass ply. | 04-03-2014 |
20140086453 | TIRE DEFECT DETECTION METHOD - Provided is a tire defect detection method capable of accurately detecting a thinly extending convex defect of a tire surface. Prior to the start of Step S | 03-27-2014 |
20140065932 | LAMINATED POLISHING PAD - The purpose of the present invention is to provide a long-lived laminated polishing pad wherein a polishing layer is resistant to detachment from a support layer even when high temperatures are produced by long periods of polishing. This laminated polishing pad is characterized that: a polishing layer and a support layer are laminated together with an adhesive member interposed therebetween; said adhesive member is either an adhesive layer containing a polyester-based hot-melt adhesive or double-sided tape that has one of such adhesive layers on each side of a substrate; and for each 100 weight parts of a polyester-resin base polymer, said polyester-based hot-melt adhesive contains 2 to 10 weight parts of an epoxy resin that has at least two glycidyl groups per molecule. | 03-06-2014 |
20140038493 | TANK AND METHOD FOR PRODUCING POLISHING PAD USING TANK - It is an object of the invention to provide a tank for use in making high-quality, air void-less, polishing pads, to provide a method for producing a polishing pad using the tank, and to provide a polishing pad obtained by such a production method. A tank for holding a resin composition, the tank comprising two or more body components and joint parts, wherein the two or more body components are joined by the joint parts to form a frame-shaped body, at least one of the joint parts includes an opening and closing member that joins adjacent ones of the body components in such a way that the adjacent body components can swing open, and at least another one of the joint parts includes a joint member that joins adjacent ones of the body components in such a way that the adjacent body components can swing about the joint member. | 02-06-2014 |
20140037947 | HOT-MELT ADHESIVE SHEET FOR STACKED POLISHING PAD AND ADHESIVE-LAYER-BEARING SUPPORT LAYER FOR STACKED POLISHING PAD - The purpose of the present invention is to provide a hot-melt adhesive sheet for a stacked polishing pad wherein a polishing layer is resistant to detachment from a support layer even when high temperatures are produced by long periods of polishing. This hot-melt adhesive sheet is used to laminate a polishing layer to a support layer, and the hot-melt adhesive is a polyester-based hot-melt adhesive that, for each 100 weight parts of a polyester-resin base polymer, contains 2 to 10 weight parts of an epoxy resin that has at least two glycidyl groups per molecule. | 02-06-2014 |
20140034204 | ASSEMBLY OF PNEUMATIC TIRE AND RIM - In an assembly of a pneumatic tire and a rim, in which a tire cavity is formed between the pneumatic tire and the rim by mounting the pneumatic tire on the rim, a noise suppressing body extending in a circumferential direction is disposed inside the tire cavity. The noise suppressing body includes a first sound absorbing material layer arranged apart from an inner surface of a tire tread part through a cavity and a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer. | 02-06-2014 |
20130340904 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF THE SAME - A tread rubber of a pneumatic tire is formed by a ribbon rubber which is spirally wound around a tire rotating axis. The ribbon rubber is wound toward one side in a tire width direction from a start point which is positioned closer to a center side than tread ends in a tire meridian cross section, is next folded back to the other side in the tire width direction at the tread end on the one side, is wound toward the tread end on the other side beyond the start point, is next folded back to the one side in the tire width direction at the tread end on the other side, and is wound toward an end point. The ribbon rubber has the winding start end and the winding terminal end at tread end vicinity portions avoiding the tread ends and a tread center portion. | 12-26-2013 |
20130340903 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF THE SAME - A pneumatic tire has a conductive portion formed by a conductive rubber is provided in the tread rubber formed by a nonconductive rubber. The conductive portion has an outer skin portion and a projection portion. The outer skin portion is formed on a surface of the tread rubber, and extends to an inner side in a tire width direction from a side surface of the tread rubber so as to terminate at a position which goes beyond a contact end. The projection portion spirally extends from a position in an outer side than contact end so as to reach a position in an inner side in the tire width direction than the contact end, and protrudes to an inner side in a tire diametrical direction from the outer skin portion so as to terminate without reaching a bottom surface of the tread rubber. | 12-26-2013 |
20130340351 | METHOD FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad. | 12-26-2013 |
20130334722 | DEVICE AND METHOD FOR FORMING SHEET-LIKE RUBBER - The sheet-like rubber forming device has a die body which has an opening having a predetermined cross sectional shape, and a variable die lip which is arranged in a front side of the die body and can change the height of the opening. The variable die lip is constructed by a first movable body and a second movable body. The die lip control unit controls the variable die lip so as to drive the first movable body in an opening direction from a state in which the first movable body and the second movable body are closed when the forming is started, hold the positions of the first movable body and the second movable body after reaching a predetermined height, and drive the second movable body in a closing direction when the forming is finished. | 12-19-2013 |
20130333826 | FORMING METHOD OF ANNULAR RUBBER MEMBER AND FORMING EQUIPMENT OF ANNULAR RUBBER MEMBER - A forming method of an annular rubber member comprises the step of forming a laminated body in which a plurality of layers overlap in a thickness direction, by continuously extruding a sheet-like rubber via a mouth piece provided in a leading end side of an extruder, and winding the extruded sheet-like rubber around a rotation support body. The layers having different widths are overlapped by changing an opening width of the mouth piece, at a time of changing from a stage of forming the layer which is positioned relatively at an inner peripheral side, to a stage of forming the layer which is positioned relatively at an outer peripheral side. | 12-19-2013 |
20130313764 | AIR SPRING - An air spring according to this invention enables easy and reliable adjustment of a space between stoppers. Specifically, an upper member ( | 11-28-2013 |
20130284330 | PNEUMATIC TIRE - A pneumatic tire has a carcass ply, a tread rubber, a side wall rubber and a rim strip rubber. A topping rubber of the carcass ply and the side wall rubber are formed by a non-conductive rubber. The rim strip rubber is formed by a conductive rubber. A height of an outer end of the rim strip rubber is equal to or more than 50% of a tire cross section height. JIS A hardness of the side wall rubber is equal to or more than 59 degrees. A side conductive layer formed by the conductive rubber is provided between the side wall rubber and the carcass ply. The side conductive layer is connected to the tread rubber and the rim strip rubber. A conductive route reaching the outer end of the side conductive layer from a ground-contacting surface is constructed in the tread rubber. | 10-31-2013 |
20130281570 | UNVULCANIZED RUBBER COMPOSITION, PROCESS FOR PRODUCING SAME, AND PNEUMATIC TIRE - A process for producing an unvulcanized rubber composition comprising a rubber wet master batch yielded by using, as raw materials, at least a filler, a dispersing solvent and a rubber latex solution, the rubber latex solution comprising two or more rubber latex solution species different from each other, and the process comprising a step (I) of dispersing the filler into the dispersing solvent to produce a filler-containing slurry solution, a step (II) of mixing the filler-containing slurry solution with the rubber latex solution to produce a filler-containing rubber latex solution, and a step (III) of coagulating and drying the filler-containing rubber latex solution to produce the rubber wet master batch. | 10-24-2013 |
20130269845 | SET OF PNEUMATIC TIRES AND AN ARRANGEMENT OF MOUNTING PNEUMATIC TIRES - A set of pneumatic tires that are mounted on a vehicle such as a compact or subcompact car, and to an arrangement of mounting the pneumatic tires on the vehicle, which enable omitting of tire rotation without adversely affecting productivity and performances of the tires. Dimensions, shaping and contour as well as tread pattern of the tires for the drive wheel are identical or substantially identical with those for the non-drive wheels. And, wear resistance of the tires for the non-drive wheels is lower than that for the drive wheels due to discrepancy in rubber compositions for forming tire treads between the tires for drive and non-drive wheels. The wear resistance may be defined as a mileage per 1mm wear in depth direction of grooves on the tire tread around its center line. | 10-17-2013 |
20130269651 | ANTI-VIBRATION DEVICE - An anti-vibration device according to the present invention makes it possible to achieve compactness and sufficient durability without increasing the number of parts. To be specific, an anti-vibration member | 10-17-2013 |
20130244545 | POLISHING PAD AND METHOD FOR PRODUCING SAME - A polishing pad has a polishing layer including a non-foamed polyurethane, wherein the non-foamed polyurethane is a reaction cured body of a polyurethane raw material composition containing an isocyanate-terminated prepolymer obtained by reacting a prepolymer raw material composition containing a diisocyanate, a high-molecular-weight polyol and a low-molecular-weight polyol; an isocyanate modified body polymerized by adding three or more diisocyanates; and a chain extender, and the addition amount of the isocyanate-modified body is 5 to 30 parts by weight with respect to 100 parts by weight of the isocyanate-terminated prepolymer. The polishing pad hardly causes scratches on the surface of an object to be polished and has an improved dressing property. | 09-19-2013 |
20130240109 | PNEUMATIC TIRE - A pneumatic tire comprising: first carcass ply that is comprised of; a tire-inner-face part extending along inner face of the tire to span between the tire bead portions; and turned-up parts extended as turned up from outer faces of the tire bead portions up to inside beyond fringes of a belt layer; and second carcass ply that is substantially omitted at between the tire bead portions and extends as being turned up from outer faces of the tire bead portions up to inside beyond fringes of a belt layer; and cords forming the tire-inner-face part, the turned-up part and the second carcass ply having inclination to radial direction of the tire; and direction of the inclination of the cords being alternated in respect of leftward or rightwards, between two adjacent ones of the tire-inner-face part, the turned-up part and the second carcass ply. | 09-19-2013 |
20130240108 | PNEUMATIC RADIAL TIRE - A wind-up side cord of a chafer is arranged in such a manner that an angle of inclination of a first line connecting a first point and a second point with respect to a tire circumferential direction is 20 to 40 degrees, and is formed as a circular arc shape which is convex to an outer side in the tire radial direction, a turn-up side cord of the chafer is arranged in such a manner that an angle of inclination of a second line connecting a third point and a fourth point with respect to the tire circumferential direction is 30 to 50 degrees, and is equal to or less than 5 degrees in a change of the angle of inclination with respect to the tire circumferential direction, and a distance in the tire circumferential direction from a fifth point to the first line is 2 to 12 mm. | 09-19-2013 |
20130228255 | PNEUMATIC TIRE - Bare can be prevented from occurring in a wear indicator. A pneumatic tire has a wear indicator | 09-05-2013 |
20130225757 | RUBBER COMPOSITION FOR TIRE SIDEWALL AND PNEUMATIC TIRE - A rubber composition for a tire sidewall includes 100 parts by mass of a rubber component comprising from 40 to 70% by mass of natural rubber and/or an isoprene rubber, and from 60 to 30% by mass of a butadiene rubber having 96% or more of cis-1,4 bond content, polymerized using a rare earth element-based catalyst, from 25 to 50 parts by mass of a filler comprising carbon black and/or silica, and from 0.3 to 3 parts by mass of a vulcanization accelerator, wherein the vulcanization accelerator comprises from 0.1 to 1.5 parts by mass of a sulfenimide compound represented by the following formula (1) and a sulfenamide-based vulcanization accelerator; | 08-29-2013 |
20130217309 | POLISHING PAD AND METHOD FOR PRODUCING SAME - A polishing pad has a polishing layer including a non-foamed polyurethane, wherein the non-foamed polyurethane is a reaction cured body of a polyurethane raw material composition containing an isocyanate-terminated prepolymer obtained by reacting a prepolymer raw material composition containing a diisocyanate, a high-molecular-weight polyol and a low-molecular-weight polyol; an isocyanate modified body polymerized by adding three or more diisocyanates; and a chain extender, and the addition amount of the isocyanate-modified body is 5 to 30 parts by weight with respect to 100 parts by weight of the isocyanate-terminated prepolymer. The polishing pad hardly causes scratches on the surface of an object to be polished and has an improved dressing property. | 08-22-2013 |
20130206340 | TIRE BUILDING METHOD AND RUBBER STRIP BONDING APPARATUS - The invention can surely accomplish lamination without the generation of voids in building a tire constructed to comprise a plurality of rubber members for a tire when a ribbon-shaped rubber strip (R) is spirally wound and laminated, and uses holding rolls ( | 08-15-2013 |
20130174955 | PNEUMATIC TIRE - An installation members | 07-11-2013 |
20130146743 | LIQUID-SEALED VIBRATION ISOLATION DEVICE AND VIBRATION ISOLATION UNIT - A liquid-sealed vibration isolation device including: a cylindrical outer tube member; a boss member; a vibration isolation base body ; a diaphragm; a partition member; an orifice; a decompressing-cum-pouring hole allowing the liquid-sealed chamber to communicate with the outside; and a sealer sealing the decompressing-cum-pouring hole. In the liquid-sealed vibration isolation device, an annular attaching member is provided to which the diaphragm is vulcanizingly adhered on the inner peripheral side and which is formed into an annular shape when viewed in the axial direction and attached to the upper end side of the outer tube member, and the decompressing-cum-pouring hole is disposed in the annular attaching member. | 06-13-2013 |
20130146196 | PNEUMATIC TIRE - A pneumatic tire is disclosed. In one sidewall part, a sidewall rubber is formed by a black rubber over the whole circumference in a tire circumferential direction. In the other sidewall part, a different color rubber part for indicating marks on a tire outer surface is provided. The different color rubber part is divided into several sections in the circumferential direction, and the different color rubber part and the black rubber part are alternately and adjacently arranged in the circumferential direction. Side surfaces at both sides in the circumferential direction of the different color rubber part are formed into inclined surface shapes in a direction such that the side surfaces approach each other toward a tire inner surface side, thereby a size in the circumferential direction of the different color rubber part is decreased toward the tire inner surface side. | 06-13-2013 |
20130139936 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire includes three or less steel belt layers, wherein a first block and a second block extending in an outer side than the first block are alternately provided in a tire circumferential direction on a ground edge region of a tread part. An annular region extending in a circumferential direction is provided on the outer surface of an outer side than a maximum width position in a side wall part, and plural projections are provided side by side on the annular region. An outer thin wall part continuing along an outer circumferential edge of the annular region and an inner thin wall part continuing along an inner circumferential edge of the annular region are provided, and the outer thin wall part is arranged adjacent to an inner radius height and inside of the inner radius height. | 06-06-2013 |
20130134631 | MANUFACTURING APPARATUS OF RUBBER MEMBER AND MANUFACTURING METHOD OF RUBBER MEMBER - A manufacturing apparatus of a rubber member includes an extruder that kneads and feeds a rubber material; a mouthpiece that discharges the rubber material supplied from the extruder; a support member that has a support surface opposing the mouthpiece; a rubber collection chamber that is formed between the mouthpiece and the support surface, that collects the rubber material discharged from the mouthpiece, and that has an opening in a front movement direction of the support surface with respect to the mouthpiece; and a shutter that opens and closes the opening. A plate-like rubber member is molded using the rubber material discharged from the mouthpiece onto the support surface by relatively moving the support surface and the mouthpiece. | 05-30-2013 |
20130133812 | MANUFACTURING METHOD OF PNEUMATIC TIRE AND MANUFACTURING APPARATUS OF PNEUMATIC TIRE - Two extruders are located at positions which are mutually shifted by 180 degrees around a rotation shaft of a rotary support, and are arranged at the same position in the rotation shaft direction of the rotary support, and each time the rotary support is rotated 180 degrees, the two extruders and the rotary support are caused to relatively move in the rotation shaft direction of the rotary support. In this manner, at least a portion of the pneumatic tire is molded by winding the rubber strip members onto the rotary support. | 05-30-2013 |
20130133811 | MANUFACTURING METHOD OF PNEUMATIC TIRE - A manufacturing method of a pneumatic tire comprises a forming step of a tread rubber which includes a two-shot stage of simultaneously winding a first rubber ribbon constructed by a nonconductive rubber, and a second rubber ribbon constructed by a nonconductive rubber. In the two-shot stage, the first rubber ribbon and the second rubber ribbon which are adjacent to each other are spirally wound in such a manner as to come into contact with each other, and a ribbon winding position passes through an L-shaped route. A conductive rubber is partly provided in the first rubber ribbon in the winding process when the ribbon winding position passes through the L-shaped route. A conductive portion which spirally and continuously extends to the tread end from the ground-contacting surface and intermittently appears in the tire meridian cross section is formed by the conductive rubber. | 05-30-2013 |
20130133810 | MANUFACTURING METHOD OF PNEUMATIC TIRE AND MANUFACTURING APPARATUS OF PNEUMATIC TIRE - An annular rubber member is molded, across a through hole, on a support surface of a support device that includes the support surface and the through hole which opens to the support surface. The rubber member molded on the support surface is arranged so as to oppose a sidewall unit of a shaped tire intermediate body. The support device is moved close to the tire intermediate body and the rubber member on the support surface is brought into contact with the sidewall unit. The rubber member is adhered to the sidewall by moving the press member that presses the rubber member to the side wall unit via the through hole, in a tire radial direction. | 05-30-2013 |
20130112839 | VIBRATION ISOLATION UNIT - To provide a vibration isolation unit capable of reducing the number of parts, man-hour and material cost, and suppressing the product cost. One side of a stopper rubber member continues to the outer edge of a diaphragm. Accordingly, because they can be vulcanizingly molded simultaneously, the number of parts can be reduced. Also, because the diaphragm is attached to an outer tube member, the stopper rubber member also can be fixed simultaneously, and therefore the man-hour can be reduced. Further, because one side of the stopper rubber member continues to the outer edge of the diaphragm, overlapping of them in an axial view can be avoided, and a rubber material can be used efficiently. Thus, the number of parts, man-hour and material cost can be reduced and the product cost of the overall vibration isolation unit can be suppressed. | 05-09-2013 |
20130098516 | PNEUMATIC TIRE - A diametrical conductive portion extending in a tire diametrical direction in a tire meridian cross section is provided at least in a nonconductive position in a side rubber portion which is constructed by a side wall rubber and a rim strip rubber, a conductive branch portion is provided so as to be branched from the diametrical conductive portion, extend to at least one in a thickness direction of the side rubber portion and pass through an inner portion of the side rubber portion, and the conductive branch portion is arranged at a position which sections at least half position in the thickness direction of the side rubber portion into an outer side in a tire diametrical direction and an inner side in the tire diametrical direction, and is formed by a conductive rubber which has a different hardness from a rubber hardness of the side rubber portion. | 04-25-2013 |
20130081746 | PNEUMATIC TIRE - A pneumatic tire including a white rubber part arranged outward in a tire radial direction than an outer edge of a bead filler in a side wall part, a white letter part projecting from the white rubber part, and a side reinforcement layer extending in a tire radial direction from a bead part is disclosed. An outer peripheral edge of the side reinforcement layer is located outward in a tire radial direction than an inner peripheral edge of a white letter part. When a length in a tire radial direction of from an inner peripheral edge of a bead core to the inner peripheral edge of the white letter part is H1, a length in a tire radial direction of from the inner peripheral edge of the bead core to the outer peripheral edge of the side reinforcement layer is H2, and a length in a tire radial direction of the white letter part is T, (H2−H1)/T is set to be 0.3 or more. | 04-04-2013 |
20130078892 | POLISHING PAD, PRODUCTION METHOD FOR SAME, AND PRODUCTION METHOD FOR GLASS SUBSTRATE - A polishing pad having a polishing layer comprising a thermoset polyurethane foam,
| 03-28-2013 |
20130075001 | PNEUMATIC TIRE - Sipe groups including a plurality of sipes which is opened to a main groove and is arranged at intervals in a tire circumferential direction are formed in both land parts with the main groove being interposed therebetween. The sipe groups are arranged at intervals in the tire circumferential direction, and are shifted in the tire circumferential direction on both sides of the main groove. | 03-28-2013 |
20130068359 | PNEUMATIC TIRE - A shoulder main groove has a plurality of circumferential components inclined to an inside in a tire width direction toward a forward in a tire rotating direction. The circumferential components are communicated with each other via a lateral groove. A shoulder block row includes a first block positioned in a rear side in the tire rotating direction of the circumferential component, and a second block which has a smaller area of a top surface than the first block, and is adjacent to the first block with the lateral groove sandwiched therebetween. A plurality of projections elevating from a groove bottom and protruding out of a side wall of the second block are provided. A volume of the projection positioned in a trailing side of the second block is larger than a volume of the projection positioned in a leading side. | 03-21-2013 |
20130068358 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF THE SAME - A pneumatic tire has a tread rubber made of a nonconductive rubber. The tread rubber is provided with a first and second conductive portions made of a conductive rubber. The first conductive portion extends radially inwardly from a ground-contacting surface, extends to one side in tire width direction, and reaches a carcass layer or a side wall rubber. An exposed position of the first conductive portion is separated from a tire equator at a distance is equal to or more than 10% of a ground-contacting width. The second conductive portion extends radially inwardly from the ground-contacting surface, extends to another side in tire width direction, and reaches the carcass layer or the side wall rubber. An exposed position of the second conductive portion is separated from the tire equator at a distance is equal to or more than 10% of the ground-contacting width. | 03-21-2013 |
20130037196 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire has a carcass ply wound up around a bead core, a chafer wound up around the bead core to be arranged in an outer side of the carcass ply, and a side wall rubber. A reinforcing rubber is provided between a rubber filler and the side wall rubber to pinch a wind-up end of the carcass ply and a wind-up end of the chafer. The reinforcing rubber has a monolithic layer extending in a tire diametrical direction. An upper end of the monolithic layer is positioned at a height which is 0.9 to 1.1 times a height of a tire maximum width position based on a rim reference line. A lower end of the monolithic layer is positioned in an outer side of the chafer at a height within ±10 mm based on the rim reference line. | 02-14-2013 |
20130035021 | POLISHING PAD, MANUFACTURING METHOD THEREFOR, AND METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE - A polishing pad having a polishing layer comprising a thermoset polyurethane foam, wherein the thermoset polyurethane foam contains, as raw material components, an isocyanate component, and active-hydrogen-containing compounds, and the active-hydrogen-containing compounds comprise one or more polyol compounds (each) having two or more functional groups, and a monool compound having one functional group. | 02-07-2013 |
20130025753 | PNEUMATIC TIRE - A pneumatic tire has a tread rubber provided in an outer side of a carcass layer in a tread portion. the tread rubber has a cap portion which is formed by a non-conductive rubber and constructs a ground-contacting surface, a base portion which is provided in an inner side in the tire diametrical direction of the cap portion, and a conductive portion which is formed by a conductive rubber and extends in a thickness direction of the tread rubber so as to reach a bottom surface of the tread rubber from the ground-contacting surface. A thickness of the conductive portion is made relatively large in a center portion in the thickness direction of the tread rubber, and the thickness of the conductive portion is made relatively small in both end portions in the thickness direction of the tread rubber. | 01-31-2013 |
20130018141 | APPARATUS FOR PROCESSING RUBBER AND PROCESSING METHOD THEREFORAANM Oda; TakumiAACI Osaka-shiAACO JPAAGP Oda; Takumi Osaka-shi JPAANM Shima; HidekiAACI Osaka-shiAACO JPAAGP Shima; Hideki Osaka-shi JP - The present invention provides an apparatus for processing a rubber. The apparatus is equipped with an enclosed kneading chamber; a charging port for charging a material into the kneading chamber; a stirring rotor for stirring the material in the kneading chamber; a control section for automatically controlling the rotational speed of the stirring rotor; and a temperature sensor for detecting an interior temperature of the kneading chamber and outputting the detected information regarding the interior temperature to the control section. The control section automatically controls the rotational speed by a PID control configured to attempt to match the actual temperature with the target temperature until expiration of a control time being set in a state where the material containing a rubber component exists in the kneading chamber, based on the information regarding the actual temperature and information regarding a target temperature being set. | 01-17-2013 |
20130017769 | POLISHING PADAANM Kimura; TsuyoshiAACI Osaka-shiAACO JPAAGP Kimura; Tsuyoshi Osaka-shi JP - An object of the present invention is to provide a polishing pad which enables high accuracy optical end-point detection in a state where polishing is carrying out, and which can prevent slurry leakage from a polishing layer to a cushion layer even in the case of being used for a long period. Another object is to provide a method for producing a semiconductor device using the polishing pad. The present invention relates to a polishing pad in which a polishing layer having a polishing region and a light-transmitting region, and a cushion layer having a through hole are laminated via a double-sided adhesive sheet such that the light-transmitting region and the through hole are laid one upon another, wherein a transparent member is stuck on an adhesive layer of the double-sided adhesive sheet in the through hole. | 01-17-2013 |
20130012107 | LAMINATE POLISHING PAD - An object of the invention is to provide a laminate polishing pad having a polishing layer and a cushion layer, which resist peeling. A laminate polishing pad including: a polishing layer with no region passing therethrough; an adhesive member; and a cushion layer placed on the polishing layer with the adhesive member interposed therebetween, wherein the back side of the polishing layer has at least one non-adhering region X continuously extending from a central region of the polishing layer to a peripheral end of the polishing layer, and/or the adhesive member has at least one non-adhering region Y continuously extending from a central region of the adhesive member to a peripheral end of the adhesive member. | 01-10-2013 |
20130012106 | POLISHING PAD - An object of the present invention is to provide a polishing pad having high planarization property and capable of making it possible to suppress the occurrence of scratches. A polishing pad of the present invention has a polishing layer having oval cells each with a long axis inclined by 5° to 45° with respect to the direction of the thickness of the polishing layer. | 01-10-2013 |
20130012105 | POLISHING PAD AND PRODUCTION METHOD THEREFOR, AND PRODUCTION METHOD FOR SEMICONDUCTOR DEVICE - A polishing pad, having a polishing layer comprising a thermoset polyurethane foam, wherein the polishing layer has an in-plane variation of 12 or less in microrubber A hardness, the variation being obtained by measuring the polishing layer from a polishing surface side of the layer, the thermoset polyurethane foam contains, as raw material components, an isocyanate component and active-hydrogen-containing compounds, and the active-hydrogen-containing compounds comprise a trifunctional polyol having at least one terminated hydroxyl group that is a secondary hydroxyl group, and having a hydroxyl group value of 150 to 1,000 mg KOH/g in an amount of 10 to 50 parts by weight for 100 parts by weight of the active-hydrogen-containing compounds. | 01-10-2013 |
20130009334 | SEMICONDUCTIVE RUBBER BELT, AND PROCESS FOR PRODUCING THE SAME - An object of the present invention is to provide a semiconductive rubber belt wherein a variation in the electric resistance is decreased, in particular, in the belt circumferential direction so that high-quality images can be formed, and a process for producing the same. In order to achieve the object, in a case where on any single straight line extended in the belt circumferential direction, the maximum value of the molecular orientation ratio correction value MOR-C of the semiconductive rubber belt, the minimum value thereof, and the average thereof are set to satisfy a specified relationship. | 01-10-2013 |
20130009078 | INSPECTION METHOD AND INSPECTION APPARATUS OF WINDING STATE OF SHEET MEMBER - Laser light is emitted to a sheet member wound on a forming drum in a range which includes the entire width of the sheet member and distance data on a distance to a reflecting surface is obtained, using a two-dimensional laser sensor which has a detection range along a drum circumferential direction, while moving either the two-dimensional laser sensor or the forming drum in a drum width direction. Further, the positions of width-directional opposite end sections of the sheet member are calculated on the basis of the obtained distance data. | 01-10-2013 |
20130005228 | POLISHING PAD - A polishing pad generates very few scratches on a surface of a polishing object, and is excellent in planarization property. The polishing pad has a high polishing rate and is excellent in planarization property. The polishing pad grooves become very little clogged with abrasive grains or polishing swarf during polishing and, even when continuously used for a long period of time, the polishing rate is scarcely reduced. | 01-03-2013 |
20130000459 | POLISHING PAD, METHOD OF PRODUCING THE SAME AND METHOD OF PRODUCING SEMICONDUCTOR DEVICE BY USING THE SAME - The present invention provides a polishing pad used for planarizing inter layer dielectrics and the like by CMP (chemical mechanical polishing) in the manufacturing process of a semiconductor device, a method of producing the polishing pad and a method of producing a semiconductor device by using the polishing pad. The present invention relates to a semiconductor wafer polishing pad having grooves in a polishing surface and formed from a foamed polyurethane, wherein a processed surface of the groove comprising a side surface and a bottom surface has a surface roughness Ra of not more than 10. | 01-03-2013 |
20120319337 | VIBRATION ISOLATION DEVICE AND MANUFACTURING METHOD THEREOF - Provided is a vibration isolation device such that weight reduction can be achieved and it is possible to simplify the structure of a resin molding die for molding the bracket member. Engagement in a direction where the external member ( | 12-20-2012 |
20120318427 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire has a rubber filler includes a lower filler and an upper filler. The lower filler surrounds a bead core and has a round cross sectional shape. The upper filler has a lower rubber hardness than the lower filler. A chafer is wound up around the bead core outside of a carcass ply and includes a metal cord. A wound-up end of the carcass ply is arranged radially outside of an upper end of the lower filler and a wound-up end of the chafer. A rubber pad has a higher rubber hardness than the upper filler and sandwiches the wound-up end of the carcass ply. The rubber pad extends to radially inside of the upper end of the lower filler and contacts with an inside of a wound-up portion of the carcass ply. | 12-20-2012 |
20120309270 | POLISHING PAD - An object of the invention is to provide a polishing pad which has a polishing layer with a phase-separated structure and can provide high polishing rate and high planarization property and with which scratching can be suppressed. The polishing pad comprises the polishing layer. The polishing layer comprises a product of curing reaction of a polyurethane-forming raw material composition containing: (A) an isocyanate-terminated prepolymer obtained by reaction of a prepolymer-forming raw material composition (a) containing an isocyanate component and a polyester-based polyol; (B) an isocyanate-terminated prepolymer obtained by reaction of a prepolymer-forming raw material composition (b) containing an isocyanate component and a polyether-based polyol; and a chain extender, wherein the product of curing reaction has a phase-separated structure. | 12-06-2012 |
20120302664 | RUBBER COMPOSITION FOR TIRE TREAD AND PNEUMATIC TIRE - A rubber composition for a tire tread includes a modified diene rubber comprising a styrene butadiene rubber and/or a polybutadiene rubber, having a functional group such as an amino group or a hydroxyl group, silica, a silane coupling agent, a lignin derivative, and a carbon masterbatch. The carbon masterbatch comprises a styrene butadiene rubber, and carbon black having iodine adsorption of from 60 to 130 g/kg, and a ratio of the amount (B) of a rubber in the carbon masterbatch to the amount (A) of the modified diene rubber is B/A=0.25 to 1. The total amount of the carbon black and the silica is from 40 to 100 parts by mass per 100 parts by mass of a rubber component, the proportion of the silica in fillers is from 25 to 80% by mass, and the amount of the lignin derivative is from 0.1 to 10 parts by mass. | 11-29-2012 |
20120298831 | LIQUID-SEALED ANTIVIBRATION DEVICE - A diaphragm | 11-29-2012 |
20120292838 | LIQUID-SEALED VIBRATION ISOLATOR - Disclosed is a liquid-sealed vibration isolator ( | 11-22-2012 |
20120279138 | POLISHING PAD AND A METHOD FOR MANUFACTURING THE SAME - A polishing pad of excellent durability and adhesion between the polishing layer and the base material layer includes a polishing layer arranged on a base material layer, wherein the polishing layer includes a thermosetting polyurethane foam having roughly spherical interconnected cells having an average cell diameter of 20 to 300 μm The polyurethane foam includes an isocyanate component and an active hydrogen-containing compound as starting material components, and the active hydrogen-containing compound includes 30 to 85% by weight of a high-molecular-weight polyol having 2 to 4 functional groups and a hydroxyl value of 20 to 100 mg KOH/g. | 11-08-2012 |
20120267038 | RUBBER STRIP MATERIAL EXTRUSION METHOD - An object is to extrude stably a rubber strip material of a predetermined cross-sectional shape without reducing an extruding speed of the rubber strip material from an extruding die. An extrusion method is provided for the rubber strip material which is used in a tire fabrication process in which an unvulcanized rubber strip material which is extruded from an extruding die of an extruding machine is wound spirally to build a tire rubber member, such that a pair of rotatable rolls are provided at a distal end portion of the extruding die in such a manner that their outer circumferential surfaces confront each other, and in that a rubber material is extruded continuously into a ribbon shape from a gap defined by the pair of confronting rolls. | 10-25-2012 |
20120256349 | TIRE MOLD, MANUFACTURING METHOD OF PNEUMATIC TIRE, AND PNEUMATIC TIRE - A tire mold has a tire molding surface. The tire molding surface is pressed against an outer surface of an uncured tire. A vent hole is provided in the tire molding surface. A surface of an outer edge region surrounding an opening of the vent hole is formed by a smooth surface. The smooth surface is smoother than a surface in a peripheral region of the outer edge region. | 10-11-2012 |
20120248669 | LIQUID-SEALED ANTIVIBRATION DEVICE - A partition element partitions a liquid-sealed chamber into a main liquid chamber and a first sub liquid chamber. A first orifice flow passage for connecting both liquid chambers is provided. A second diaphragm is formed in the partition element. The partition element includes a second sub liquid chamber partitioned from the main liquid chamber by the second diaphragm and a second orifice flow passage for connecting the first and second sub liquid chambers to each other. A valve portion brought into contact with a periphery around an opening of the second orifice flow passage is formed on a flexible membrane portion of the second diaphragm into a surrounding wall shape. A through hole is formed outside the valve portion, and a projection compressed by a counter wall is formed on a membrane surface of the flexible membrane portion on a main liquid chamber side. | 10-04-2012 |
20120241081 | TIRE FORMING METHOD AND TIRE FORMING MOLD - A tire forming method is disclosed in which letters and lines having different colors are formed in a side wall portion of the tire. | 09-27-2012 |
20120234451 | PNEUMATIC TIRE - A reinforcing belt | 09-20-2012 |
20120234448 | PNEUMATIC TIRE - A pneumatic tire has a nonconductive tread rubber constructing an outer surface of a tread portion, a nonconductive side wall rubber constructing an outer surface of a side wall portion, and a rim strip rubber constructing an outer surface of a bead portion. The pneumatic tire has a conductive sheet formed by a conductive rubber. The conductive sheet reaches the rim strip rubber from the tread rubber while passing between a carcass and the side wall rubber, and terminates without being exposed to the outer surface of the bead portion. The rim strip rubber is partitioned into a nonconductive rubber portion and a conductive rubber portion, and the conductive rubber portion is connected to the conductive sheet and is exposed to a bead bottom surface. | 09-20-2012 |
20120232192 | RUBBER COMPOSITION FOR PNEUMATIC TIRE - A rubber composition for a tire, in particular for a tread rubber part of a studless tire, comprising: diene rubber component consisting of natural rubber and/or other diene rubber; powder of hydrophilic modified cellulose amounting 0.1-30 mass parts relative to 100 mass parts of the diene rubber component. In preferred embodiments, the hydrophilic modified cellulose has degree of etherification in a range of 0.2-1.0 and its powder has average particle size in a range of 20 μm to 100 μm. | 09-13-2012 |
20120232186 | RUBBER COMPOSITION AND PNEUMATIC TIRE - A rubber composition for tire comprises: diene rubber component consisting of diene rubber (s); and multihollow particles amounting 0.3-20 mass parts relative to 100 mass parts of the diene rubber component; and microvoids being distributed in each of the multihollow particles throughout from a vicinity of center portion to a vicinity of surface of the particle; and porosity of the multihollow particles being in a range of 40% to 60%. A pneumatic tire has a tread that is formed of such rubber composition. | 09-13-2012 |
20120228814 | RUBBER STOPPER - The present invention provides a rubber stopper that can set a shape suitable for mounting and set a desired stopper characteristic. Specifically, a holding fitting | 09-13-2012 |
20120228813 | LIQUID-SEALED ANTIVIBRATION DEVICE - A valve member formed of an elastomeric membrane for opening and closing a second orifice flow passage is mounted on a partition element such that the valve member is arranged orthogonal to the flow direction of the second orifice flow passage. A valve portion for closing openings of the second orifice flow passage due to flexural deformation of a flexible membrane portion caused by liquid flow in the second orifice flow passage is arranged on the flexible membrane, and communication holes for bring the second orifice flow passage into communication are formed in the flexible membrane portion. A cylindrical buffer portion projecting from the flexible membrane portion for surrounding the openings when the flexible membrane portion is deformed by flexure is provided to the valve portion, and a projection height of the cylindrical buffer portion is set larger than a wall thickness thereof. | 09-13-2012 |
20120225974 | RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE - A rubber composition for tire, comprising at least a rubber component and an inorganic filler, wherein the inorganic filler has an angle of repose of 40 degrees or more, a Mohs' hardness of 2.0 or less, a BET specific surface area (BETS) (m | 09-06-2012 |
20120225973 | RUBBER COMPOSITION FOR PNEUMATIC TIRE TREAD FOR HEAVY LOAD, AND PNEUMATIC TIRE FOR HEAVY LOAD - A rubber composition for a pneumatic tire tread for heavy load, comprising a rubber component, and a carbon black, the carbon black satisfies (1) the carbon black has a dibutyl phthalate (DBP) absorption number of 90 to 180 mL/100 g, (2) the difference between the BET specific surface area (BET5) [unit: m | 09-06-2012 |
20120214903 | RUBBER COMPOSITION, ITS MANUFACTURING METHOD AND PNEUMATIC TIRE - A manufacturing method of rubber composition for tire tread or the other, which is comprised of adding 30-110 mass parts of silica powders to 100 mass parts of diene rubber component and adding silane coupling agent by 3-15 mass % of the silica powders, comprising: preparing hetero-modified SBR having hetero atom functional group; a first kneader-mixing step, in which 60-85 mass parts of the diene rubber component including no less than 20 mass % of the hetero-modified SBR is mixed in a kneader device with substantially all of the reinforcing fillers; taking out of obtained mixture to give a master batch; and second kneader-mixing step, in which the master batch is mixed substantially solely with remaining mass parts of the diene component. | 08-23-2012 |
20120205021 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF PNEUMATIC TIRE - A pneumatic tire has a tread rubber formed by a nonconductive rubber and a side wall rubber formed by the nonconductive rubber. An outer surface of the side wall rubber is provided with a band-like diametrical conductive portion which is formed by a conductive rubber and extends along a tire diametrical direction. An outer end of the diametrical conductive portion is exposed to a ground-contacting surface or is connected to a conductive rubber member which is exposed to the ground-contacting surface. An inner end of the diametrical conductive portion is exposed to a rim contact region or is connected to a rim strip rubber formed by the conductive rubber. A narrow groove is formed by depressing an outer surface of the diametrical conductive portion and extends in a tire diametrical direction in a side wall portion. | 08-16-2012 |
20120205020 | PNEUMATIC TIRE - A pneumatic tire has a tread rubber which is formed by a nonconductive rubber and includes a conductive portion. The conductive portion comprises a first, second, third and fourth conductive portions. The first conductive portion extends radially inward from the ground-contacting surface and reaches a cap portion. The second conductive portion is provided continuously in the first conductive portion, extends to one side in the tire width direction between the cap portion and a base portion, and reaches a carcass layer. The third conductive portion is connected to the second conductive portion, extends radially inward from an outer surface of the base portion, and reaches the bottom surface of the tread rubber. The fourth conductive portion is provided continuously in the third conductive portion, extends to another side in the tire width direction along the bottom surface, and reaches the carcass layer. | 08-16-2012 |
20120186717 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire has a carcass ply which extends between bead cores arranged in a pair of bead portions. The carcass ply is wound up to an outer side in a tire radial direction around the bead cores. A chafer is arranged in such a manner as to wrap around the carcass ply from an inner side to an outer side in a tire width direction, around the bead core. An inner end of the chafer positioned in the inner side in the tire width direction is arranged in the outer side in the tire radial direction than a winding end of the carcass ply. A reinforcing rubber tapering off toward the outer side in the tire radial direction is provided adjacently to the outer side in the tire radial direction of the inner end of the chafer. | 07-26-2012 |
20120152419 | PNEUMATIC TIRE AND MANUFACTURING METHOD OF THE SAME - A pneumatic tire has a conductive portion formed by a conductive rubber is provided in the tread rubber formed by a nonconductive rubber. The conductive portion has an outer skin portion and a projection portion. The outer skin portion is formed on a surface of the tread rubber, and extends to an inner side in a tire width direction from a side surface of the tread rubber so as to terminate at a position which goes beyond a contact end. The projection portion spirally extends from a position in an outer side than contact end so as to reach a position in an inner side in the tire width direction than the contact end, and protrudes to an inner side in a tire diametrical direction from the outer skin portion so as to terminate without reaching a bottom surface of the tread rubber. | 06-21-2012 |
20120152418 | MANUFACTURING METHOD OF PNEUMATIC TIRE AND PNEUMATIC TIRE - A manufacturing method of a pneumatic tire in which a tread rubber formed by a nonconductive rubber is arranged in a tread portion, and a conductive portion which is formed by a conductive rubber and reaches a carcass layer or a belt layer from a ground surface is buried in the tread rubber, wherein a step of forming the carcass layer includes a step of forming a strip-like carcass ply by coating a plurality of carcass cords which are arranged in parallel, with a topping rubber constructed by a nonconductive rubber portion which is along an extending direction of the carcass cord, and a conductive rubber portion which is narrower than the nonconductive rubber portion, and a step of lining up a lot of the strip-like carcass plies in a ply width direction so as to bond the strip-like carcass plies sequentially. | 06-21-2012 |
20120146272 | VIBRATION ISOLATION APPARATUS - To provide a vibration isolation apparatus the spring constant of which can be prevented from increasing in two directions of three orthogonal directions but can be adjusted to increase in the other direction of the three orthogonal directions. If the internal cylinder member | 06-14-2012 |
20120146271 | VIBRATION ISOLATION APPARATUS - Rubber burrs which are formed on a first molding product are set to the closer side of spaces of side surfaces. Therefore, when the first molding product is placed in a resin mold for a resin molding process, it is unnecessary to insert a rubber-burr portion in the resin mold at a predetermined position (at which protrusion rubber parts can be brought into tight contact with the resin mold for sealing). That is, the rubber burrs formed along the parting lines can be placed in a cavity of the resin mold. Therefore, since second rubber covering parts can be easily inserted in the resin mold at the predetermined positions and working time can be reduced, workability can be improved. Moreover, since the predetermined positions of the resin mold can be surely sealed by tight contact with the side faces, generation of resin burrs can be suppressed. | 06-14-2012 |
20120146270 | VIBRATION ISOLATION APPARATUS - To provide a vibration isolation apparatus which prevents a vibration isolation leg from being pushed by a resin material injected in a resin molding process and to prevent generation of resin burrs. Because a rubber notch | 06-14-2012 |