| THE GOODYEAR TIRE & RUBBER COMPANY Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125509 | PNEUMATIC TIRE - A pneumatic tire comprises a tread, a carcass and a belt structure interposed between the carcass and the tread. The belt structure includes a zigzag belt structure formed of at least two layers of cords interwoven together from a strip of rubber reinforced with one or more cords. The strip forming the zigzag belt structure is layed up in a winding pattern in accordance with the following formula: for i=1 through L, the ith winding pattern is: [W | 05-24-2012 |
| 20120125505 | METHOD FOR RECOVERING UNCURED RUBBER AND TIRE INCLUDING RECLAIMED RUBBER - A method for recovering uncured rubber from unused electron beam pre-cured rubber stock used in the manufacture of pneumatic tires. A first layer of the pre-cured rubber stock having cured rubber is skived with a band knife cutter blade from a second layer of the pre-cured rubber stock having uncured rubber. The band knife cutter blade is lubricated so as to avoid adhesion of the uncured rubber to a leading cutting edge of the cutter blade. After the first layer of cured rubber is removed from the pre-cured rubber stock, the uncured rubber in the second layer is reworked into at least one tire component. | 05-24-2012 |
| 20120125498 | Balance Pads For Balancing Pneumatic Tires - Balance pads for balancing pneumatic tires having DVA innerliners, and methods for balancing such pneumatic tires, are disclosed. In one embodiment, a balance pad is provided for balancing a pneumatic tire having a DVA innerliner. The balance pad includes an outer layer having a dynamically vulcanized alloy, which comprises an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase. The balance pad further includes an inner layer having a rubber or plastic compound that is bonded to the outer layer. The outer layer is capable of being bonded to an inner surface of a tire innerliner, which includes a dynamically vulcanized alloy having an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase. | 05-24-2012 |
| 20120111481 | TIRE-FORMING APPARATUS AND RELATED METHODS - Apparatus and methods of forming a tire. A drum has an expansion device that is configured to turn-up the lateral ends of the tire carcass about respective bead-and-apex assemblies while generally maintaining a constant orientation of the bead-and-apex assemblies. Further, the expansion device turns-up the lateral ends of the tire carcass while at the same time radially expanding the tire carcass. The methods entail turning-up the lateral ends of the tire carcass around the bead-and-apex assemblies and also moving a portion of the tire carcass lying between the bead-and-apex assemblies in a radially-outward direction relative to an axis of rotation of the drum. | 05-10-2012 |
| 20120111470 | TIRE INCLUDING A CONTINUOUS PRESSURE MEMBRANE - Tire including a continuous pressure membrane. The tire includes a carcass, a rubber layer surrounding the carcass, and a belt. The carcass includes at least one continuous pressure membrane defining a generally U-shaped cross section. The pressure membrane includes a crown portion, a first sidewall portion, and a second sidewall portion connected with the first sidewall portion by the crown portion. The belt may be composed of at least one additional continuous pressure membrane adjacent the crown portion. | 05-10-2012 |
| 20120073720 | WIRE COAT COMPOSITIONS FOR RUBBER ARTICLES - The present invention is based upon the unexpected finding that lignin can be incorporated into wire coat stock composition to improve metal to rubber adhesion. It has been further found that lignin can be used as a replacement in whole or in part for conventional rubber-to-metal adhesion promoters, such as cobalt materials which are conventionally used in wire coat stocks to attain and maintain needed rubber-to-wire adhesion properties. In fact, wire coat stocks that contain lignin provide more that adequate rubber-to-metal adhesion characteristics for typical applications, such as in tires, and maintain needed levels of adhesion over long periods of product service. For instance, high levels of rubber-to-metal adhesion are maintained under harsh conditions, such as exposure to elevated temperatures and high levels of humidity. The utilization of lignin in wire coat stock formulations in accordance with this invention is also economically advantageous since lignin is a low cost alternative to most conventional adhesion promoting agents. Lignin is also environmentally friendly and does not present any known health hazards. Lignin is derived from wood and constitutes about 25 percent to 33 percent of the dry mass of wood. Accordingly, lignin is an abundant naturally occurring organic polymer which is a renewable resource since it is derived from trees. Accordingly, lignin represents a low cost, abundant, environmentally friendly, and highly effective alternative to conventional rubber-to-metal adhesion promoters. The present invention more specifically discloses a wire coat stock composition which is comprised of (1) a rubbery polymer, (2) about 40 phr to about 80 phr of carbon black, and (3) about 2 phr to about 30 phr of lignin. | 03-29-2012 |
| 20120029234 | BORON CONTAINING FUNCTIONALIZING AGENT - The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: | 02-02-2012 |
| 20110290412 | ASSEMBLY AND A METHOD FOR EXTRUDING A TIRE COMPONENT - In order to facilitate the assembly of a tire component like an Off the Road tire shoulder wedge, it is proposed to extrude this component with a high tack compound coating at its periphery by using a dual extruder which otherwise can extrude the tire component with a first high tack compound coating on one side, combined with an assembly for the extruder comprising a splice bar, a holder and a die which are designed to provide a channel deriving and guiding a portion of the high tack compound of the extruder to the stream of compounds before extrusion through the die, on a side opposite to the first coating, thereby providing a coating at almost the whole periphery of the component. | 12-01-2011 |
| 20110254194 | METHOD AND ASSEMBLY FOR EXTRUDING A RUBBER COMPOUND - The invention relates to the extrusion of tire components with a large change of gauge across their cross-sectional area. It is provided a method and an assembly for extruding such a tire component with an extruder feeding a flow channel with a downstream die opening, whereby a deflector is provided in the flow channel upstream the die opening such that a flow of rubber is slowed down in front of broad portions of the cross-sectional area of the downstream die, avoiding distortion or bending of the extruded tire component. | 10-20-2011 |
| 20110237769 | Polymers of isoprene from renewable resources - It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. In some cases, these cells are cultured in a culture medium that includes a carbon source, such as, but not limited to, a carbohydrate, glycerol, glycerine, dihydroxyacetone, one-carbon source, oil, animal fat, animal oil, fatty acid, lipid, phospholipid, glycerolipid, monoglyceride, diglyceride, triglyceride, renewable carbon source, polypeptide (e.g., a microbial or plant protein or peptide), yeast extract, component from a yeast extract, or any combination of two or more of the foregoing. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. It is anticipated that there will be a significant demand for synthetic rubber and other isoprene containing polymers that are synthesized using isoprene of this type which is made from renewable, non-petrochemical based resources. In fact, it is believed that industrial customers and consumers would prefer to purchase isoprene containing polymers that are derived from such environmentally friendly sources to those that are made with isoprene derived from a petrochemical process. It is further believed that customers would be willing to pay premium prices for such environmentally friendly products that are made with renewable resources. However, it is important to be able to verify that such isoprene containing polymers are actually made from non-petrochemical based resources. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has δ | 09-29-2011 |
| 20110186197 | ELASTOMERS CONTAINING SURFACE METALATED SILICEOUS FILLER - This invention is based upon the concept of modifying the surface of silica with a metal, such as titanium or zirconium, which will catalyze silanol condensation reactions on the surface of the silica. In other words, modifying the surface of silica with titanium or zirconium provides a catalyst for the silanol condensation reaction between the silica surface and silane coupling agents used in silica filled compounds. The utilization of such metalated silica as a filler in rubber compositions results in improved polymer filler interaction and in turn improved physical properties. For instance, such surface metalated siliceous fillers can be used in tire tread compounds to attain improved rolling resistance and treadwear without compromising traction characteristics. The present invention more specifically discloses an elastomeric composition which is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. The subject invention further reveals a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. | 08-04-2011 |
| 20110024011 | MODIFIED GEL PARTICLES AND RUBBER COMPOSITION - This invention discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a filler, (2) a cured rubbery polymer, and (3) core-shell particles which are comprised of (a) a crosslinked elastomeric core consisting essentially of repeat units that are derived from at least one conjugated diolefin monomer and from 15 weight percent to 30 weight percent at least one crosslinking monomer, wherein the crosslinked elastomeric core is a polymeric composition having a glass transition temperature which is within the range of −20° C. to 20° C., and (b) a polymeric shell which is derived from at least one vinyl aromatic monomer, wherein the polymeric shell has a glass transition temperature which is within the range of 50° C. to 160° C., and wherein the weight ratio of the core to the shell is within the range of 20:1 to 7:1. | 02-03-2011 |
| 20110001273 | BLADDER, AN APPARATUS AND A METHOD FOR SHAPING AND CURING A TIRE - A method, a bladder and an apparatus for shaping and curing a tire, wherein the bladder has two weakened regions corresponding to the shoulder regions of the tire when the bladder is expanded in the cavity of the tire. Upon inflation of the bladder and its expansion in the tire, the bladder contacts first the inner surface of the cavity at the bead regions and progressively the sidewalls, the shoulders and then the center of the tire. The weakened regions are designed to stretch more under a given tension than the remaining regions in order to allow a progressive contact movement of the lateral regions of the bladder with the sidewalls with very little tension and relative movement between the lateral regions of the bladder and the sidewalls of the tire. | 01-06-2011 |
| 20100289173 | METHOD AND ASSEMBLY FOR EXTRUDING A RUBBER COMPOUND - The invention relates to the extrusion of tire components with a large change of gauge across their cross-sectional area. It is provided a method and an assembly for extruding such a tire component with an extruder feeding a flow channel with a downstream die opening, whereby a deflector is provided in the flow channel upstream the die opening such that a flow of rubber is slowed down in front of broad portions of the cross-sectional area of the downstream die, avoiding distortion or bending of the extruded tire component. | 11-18-2010 |
| 20100288407 | DENDRIMERS OF RUBBERY POLYMERS - This invention discloses a process for synthesizing a dendrimer of a rubbery polymer comprising: (a) reacting a lithium terminated rubbery polymer with a halogenated tin containing compound to produce a polymer which is terminated with halogenated tin moieties, wherein the halogenated tin containing compound is of the structural formula: | 11-18-2010 |
| 20100273952 | CONTROLLED POLYMERIZATION - The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pK | 10-28-2010 |
| 20100243118 | Pneumatic tire for use on row-crop field sprayers and other like farm machinery - A pneumatic tire for use on row-crop field sprayers having lugs configured for providing improved traction, load-handling capability, and stability. The leading edge of each lug is curvilinear such that outside corners are absent. Elimination of outside corners removes stress concentration points that would otherwise degrade tire performance under the conditions of high loading and fast speed. The lugs provide a significant load-carrying capacity without sacrificing attributes such as wet and dry traction, tread cleaning and hard surface roading. | 09-30-2010 |
| 20100206443 | Heterogeneous Rubbery Polymers Having Random, Tapered, and Block Portions Therein and Methods of Making Same - A heterogeneous rubbery polymer is provided that includes a polymer chain derived from a vinyl aromatic monomer and a conjugated diolefin monomer, wherein from greater than 20 weight percent to about 40 weight percent of units in the rubbery polymer are derived from the vinyl aromatic monomer and from about 60 weight percent to about 80 weight percent of units in the rubbery polymer are derived from the conjugated diolefin monomer. The polymer chain is further characterized by having greater than zero and less than about 30 weight percent of the vinyl aromatic units in sequences containing 1 vinyl aromatic unit, from about 5 weight percent to about 20 weight percent of the vinyl aromatic units in sequences containing 5 to 8 vinyl aromatic units, and greater than zero and less than about 5 weight percent of the vinyl aromatic units in sequences containing 9 or more vinyl aromatic units. | 08-19-2010 |
| 20100186875 | ASSEMBLY AND A METHOD FOR EXTRUDING A TIRE COMPONENT - In order to facilitate the assembly of a tire component like an Off the Road tire shoulder wedge, it is proposed to extrude this component with a high tack compound coating at its periphery by using a dual extruder which otherwise can extrude the tire component with a first high tack compound coating on one side, combined with an assembly for the extruder comprising a splice bar, a holder and a die which are designed to provide a channel deriving and guiding a portion of the high tack compound of the extruder to the stream of compounds before extrusion through the die, on a side opposite to the first coating, thereby providing a coating at almost the whole periphery of the component. | 07-29-2010 |
| 20100160513 | SILICA-RICH RUBBER COMPOSITIONS AND METHODS OF MAKING SAME - The invention includes a silica-rich rubber composition, which exhibits good processing characteristics and improved wet traction characteristics, a method for making and a tire having a tread component including the same. In one embodiment, a rubber composition includes at least one elastomer, from about 30 phr to about 120 phr silica reinforcing filler, from about 0 phr to about 30 phr carbon black reinforcing filler, from about 3 phr to about 10 phr of rosin acid, and from about phr to about 7 phr of zinc oxide, provided that no free stearic acid is separately included in the rubber composition. | 06-24-2010 |
| 20100154611 | TIRE COMPONENT CUTTER APPARATUS AND METHOD OF CUTTING - A method of cutting an elastomeric strip of material is described. The method includes the step of advancing a strip of material | 06-24-2010 |
| 20100152364 | POLYMERS, RUBBER COMPOSITIONS, AND TIRES - The present invention relates to polymers, rubber compositions, and tires. In some embodiments, the present invention relates to polymers comprising repeat units provided from at least one amine monomer. The amine monomer can be an amine styrene monomer. Examples of amine styrenes monomer are provided. In other embodiments, a polymer can be made from the copolymerization of at least one amine monomer and at least one monomer that is used to make synthetic rubber, such as at least one conjugated diolefin monomer. These polymers can be terminated with a terminating group, including, for example, those having a hydrolyzable group. Rubber compositions can be made from the above-described polymers. Tires can be made from the polymers or from the rubber compositions. | 06-17-2010 |
| 20100144950 | COUPLING COMPOUNDS AND THEIR USES IN RUBBER COMPOSITIONS AND TIRES - The invention includes coupling compounds, rubber compositions, and tires. The coupling compounds can, for example, be used to couple to silica filler. Rubber compositions can comprise the coupling compound and polymers. Polymers can be homopolymers, copolymers and terpolymers, and can include repeat units provided from conjugated diene monomers. Tires and various parts of tires can be made from those rubber compositions. | 06-10-2010 |
| 20100130664 | TERMINATING COMPOUNDS, POLYMERS, AND THEIR USES IN RUBBER COMPOSITIONS AND TIRES - The invention includes terminating compounds, polymers, rubber compositions and tires. The terminating compounds can provide terminating groups on the polymer. Polymers can be homopolymers, copolymers and terpolymers, and can include repeat units provided from conjugated diene monomers. Rubber compositions can be made from the polymers, and tires and various parts of tires can be made from those rubber compositions. | 05-27-2010 |
| 20100108230 | SYNTHESIS OF SOLUBLE FUNCTIONALIZED LITHIUM INITIATORS - This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in aromatic solvents. The present invention also discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is a cured the rubber formulation which is comprised of (a) at least one rubbery polymer containing functional groups of the structural formula: | 05-06-2010 |
| 20100093960 | Potassium Based Catalyst Systems For Synthesizing Rubbery Polymers - The present invention is directed to a catalyst system for synthesizing rubbery polymers, such as styrene-butadiene rubber, that can be utilized in tire tread rubbers. The catalyst system, in one embodiment, includes an organolithium compound and a potassium alkyl borohydride or potassium alkyl aluminum hydride defined by: (R) | 04-15-2010 |
| 20100092589 | SPLICE BAR FOR TIRE TREAD EXTRUSION APPARATUS - A splice bar for a tire tread die designed for providing a narrow strip of electrically conductive rubber extending from a lower under tread to the surface of the outer tread by positioning a slotted chimney block in a the outer tread rubber passage and having a passage between the chimney slot and the under tread rubber passage specially shaped for improving the flow of rubber during extrusion. This passage is essentially straight for guiding a strip-shaped stream of rubber of the under tread to the chimney slot. The passage intersects the rear surface of the splice bar to form a generally rectangular shaped corridor extending from the rear surface to the chimney slot. | 04-15-2010 |
| 20100089520 | BLADDER, AN APPARATUS AND A METHOD FOR SHAPING AND CURING A TIRE - A method, a bladder and an apparatus for shaping and curing a tire, wherein the bladder has two weakened regions corresponding to the shoulder regions of the tire when the bladder is expanded in the cavity of the tire. Upon inflation of the bladder and its expansion in the tire, the bladder contacts first the inner surface of the cavity at the bead regions and progressively the sidewalls, the shoulders and then the center of the tire. The weakened regions are designed to stretch more under a given tension than the remaining regions in order to allow a progressive contact movement of the lateral regions of the bladder with the sidewalls with very little tension and relative movement between the lateral regions of the bladder and the sidewalls of the tire. | 04-15-2010 |
| 20100063202 | Methods of Making Siloxy-Amine Functionalized Rubbery Polymers and Uses Thereof in Rubber Compositions for Tires - The invention includes a siloxy-amine functionalized rubbery polymer, which exhibits good reinforcing characteristics and filler dispersing effect, a method for making, and a rubber composition including the same. In one embodiment, a process for manufacturing includes polymerizing a conjugated diene monomer using an organolithium compound as an initiator in a hydrocarbon solvent. Next, an active terminal end of the polymer is reacted with a functionalized terminating agent represented by: | 03-11-2010 |
| 20100043938 | DENDRIMERS OF RUBBERY POLYMERS - This invention discloses a process for synthesizing a dendrimer of a rubbery polymer comprising: (a) reacting a lithium terminated rubbery polymer with a halogenated silicon containing compound to produce a polymer which is terminated with halogenated silicon moieties, wherein the halogenated silicon contain compound has at least four halogen atoms which are bonded directly to silicon atoms, wherein the ratio of the lithium terminated rubbery polymer to halogen atoms in the halogenated silicon containing compound is within the range of 2:n to (n-1):n, wherein n represents the number of halogen atoms that are bonded directly to silicon atoms in the halogenated silicon containing compound, wherein the halogenated silicon containing compound contains at least three halogen atoms which are bonded directly to a silicon atom; (b) reacting the polymer which is terminated with halogenated silicon moieties with a molar excess of a tertiary alcohol to produce a polymer which is terminated with hydroxy silyl moieties; and (c) allowing the polymer which is terminated with the hydroxy silyl moieties to couple under conditions sufficient to produce a dendrimer containing siloxane linkages. It has also be found that similar dendrimers having improved processability can be make utilizing halogenated tin containing compounds in stead of the halogenated silicon containing compound. | 02-25-2010 |
| 20100038002 | DIRECTIONAL TREAD FOR A TIRE - A pneumatic tire | 02-18-2010 |
| 20100024948 | ENHANCED RADIAL AIRCRAFT TIRE - This invention disclosed a pneumatic tire for use on aircrafts having a tread, a crown reinforcement, and a radial carcass reinforcement. The carcass reinforcement has at least one axially inner ply of textile cord wound around a pair of bead cores, at least one axially inner ply being wound around the bead core in each bead from inside to the outside forming outside turn-ups and at least one axially outer ply of textile cords extending from bead to bead along the turn-ups of the at least one axially inner ply. Each bead has an elastomeric apex filler. The at least one axially inner ply or at least one axially outer ply has merged cords having a percent elongation at break of 12% to less than 20% and a break strength greater than 1050 N with a linear density of greater than 9,000 dtex. The preferred cord has fibers of polyamide and nylon. The cord fiber of polyamide is an aromatic polyamide 3300/2 construction. The cord fiber of nylon is a 1880/1 nylon construction. The preferred cord construction is 6.7 (A)+4.5 (N)/6.7 TPI. The cord reinforcement is preferably used in the ply layers or strips of the crown reinforcement as well. | 02-04-2010 |
| 20100024943 | TWO-PIECE TIRE - A two-piece tire assembly | 02-04-2010 |
| 20100024936 | TWO-PIECE TIRE - A two-piece tire assembly | 02-04-2010 |
| 20090308518 | RADIAL AIRCRAFT TIRE - A pneumatic tire | 12-17-2009 |
| 20090229729 | BORON CONTAINING FUNCTIONALIZING AGENT - The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: | 09-17-2009 |
| 20090133797 | PNEUMATIC TIRE - A tire casing | 05-28-2009 |
| 20090114333 | PNEUMATIC TIRE - A pneumatic radial tire has a pair of opposing bead portions | 05-07-2009 |
| 20090078354 | Rubber Formulation with Adhesive-Compatible Surface - A method of effecting an improved adhesive bond between a rubber surface and a device adhered thereto is disclosed. In pneumatic tires, monitoring devices are more securely adhered to the innerliner of the tire utilizing a room temperature vulcanizable adhesive wherein curing is facilitated in the presence of moisture. The innerliner formulation is prepared by incorporating a material which has incomplete compatibility with the rubber of the innerliner formulation, and which has hygroscopic properties which thereby tends to attract moisture. | 03-26-2009 |
| 20090062456 | LIQUID POLYMER - This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold. | 03-05-2009 |
| 20090054666 | LIQUID POLYMER - This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold. | 02-26-2009 |
| 20090042719 | Hairy polymeric nanoparticles - This invention discloses a process for synthesizing a hairy polymer particle which comprises the steps of (1) polymerizing a vinyl aromatic monomer by emulsion polymerization in an aqueous medium to produce core particles, (2) recovering the core particles from the aqueous medium, (3) dispersing the core particles in an organic solvent, (4) adding an organo-lithium compound to the dried core particles in the organic solvent to produce the hairless core initiator, and (5) utilizing the hairless core initiator to initiate the anionic polymerization of a conjugated diolefin monomer in an organic solvent to produce a solution of the hairy polymer particles. The hairy polymer nanoparticles can then be recovered from the organic solvent. These hairy polymer particles are comprised of (1) a core which is comprised of a polymer of a vinyl aromatic monomer and (2) hairs which are polymer chains of a conjugated diolefin monomer, wherein the hairs are covalently bonded to the core. The core is typically spherical in shape, has a diameter of less than 1000 nm, and is comprised of a crosslinked polymer of a vinyl aromatic monomer. The hairy polymer particles of this invention are useful as fillers in rubber compositions used in making articles of manufacture, such as tires, hoses, power transmission belts, windshield wiper blades, and the like. | 02-12-2009 |
| 20090036592 | POLYMERIC COMPOSITION FOR SEALS AND GASKETS - The present invention relates to a polymeric composition which has an excellent combination of properties for use in making seals and gaskets for utilization in appliances, automotive applications, and building applications, such as window glazing gaskets. These polymeric compositions offer excellent dimensional stability, low compression set, outstanding sealing characteristics, low temperature flexibility, heat resistance and ultra-violet light resistance. The present invention more specifically discloses a polymeric composition having excellent characteristics for utilization in manufacturing seals and gaskets including dimensional stability, low compression set and outstanding sealing characteristics, said polymeric composition being comprised of a blend of (A) a thermoplastic resin selected from the group consisting of polypropylene, polyethylene, poly phenylene ether polystyrene, and styrene containing copolymer resins, (B) an elastomeric polymer selected from the group consisting of block copolymer comprising a first polymeric block that is comprised of repeat units that are derived from a vinyl aromatic monomer and a second block that is comprised of repeat units that are derived from a conjugated diolefin monomer, wherein the repeat units in the second block are hydrogenated, and wherein the repeat units in the second block are elastomeric in nature, and a crosslinked olefinic elastomer, (C) a high molecular weight crosslinked diene elastomer comprised of repeat units that are derived from conjugated diene monomer selected from the group consisting of 1,3-butadiene and isoprene, wherein the high molecular weight diene elastomer has a weight average molecular weight of at least about 200,000, and (D) an oil. | 02-05-2009 |
| 20090020206 | WRAP-AROUND TOEGUARD FOR A PNEUMATIC TIRE - A wrap-around toeguard | 01-22-2009 |
| 20080308232 | METHOD AND APPARATUS FOR DETECTING EXPOSED METAL CORDS IN AN ELASTOMERIC STRIP - A method and apparatus for detecting exposed and partially separated metal cords | 12-18-2008 |
| 20080295939 | METHOD FOR PREVENTING SLIPPAGE OF A TIRE ON A TIRE AND WHEEL ASSEMBLY, AND TIRE AND WHEEL ASSEMBLY OBTAINED THEREBY - The present invention relates to a method for preventing rotatory slippage between a tire and wheel assembly, wherein said method comprises:
| 12-04-2008 |
| 20080295936 | ELASTOMERS CONTAINING SURFACE METALATED SILICEOUS FILLERS - This invention is based upon the concept of modifying the surface of silica with a metal, such as titanium or zirconium, which will catalyze silanol condensation reactions on the surface of the silica. In other words, modifying the surface of silica with titanium or zirconium provides a catalyst for the silanol condensation reaction between the silica surface and silane coupling agents used in silica filled compounds. The utilization of such metalated silica as a filler in rubber compositions results in improved polymer filler interaction and in turn improved physical properties. For instance, such surface metalated siliceous fillers can be used in tire tread compounds to attain improved rolling resistance and treadwear without compromising traction characteristics. The present invention more specifically discloses an elastomeric composition which is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. The subject invention further reveals a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. | 12-04-2008 |
| 20080242813 | Hairy polymeric nanoparticles - This invention discloses a process for synthesizing a hairy polymer particle which comprises the steps of (1) polymerizing a vinyl aromatic monomer by emulsion polymerization in an aqueous medium to produce core particles, (2) recovering the core particles from the aqueous medium, (3) dispersing the core particles in an organic solvent, (4) adding an organo-lithium compound to the dried core particles in the organic solvent to produce the hairless core initiator, and (5) utilizing the hairless core initiator to initiate the anionic polymerization of a conjugated diolefin monomer in an organic solvent to produce a solution of the hairy polymer particles. The hairy polymer nanoparticles can then be recovered from the organic solvent. These hairy polymer particles are comprised of (1) a core which is comprised of a polymer of a vinyl aromatic monomer and (2) hairs which are polymer chains of a conjugated diolefin monomer, wherein the hairs are covalently bonded to the core. The core is typically spherical in shape, has a diameter of less than 1000 nm, and is comprised of a crosslinked polymer of a vinyl aromatic monomer. The hairy polymer particles of this invention are useful as fillers in rubber compositions used in making articles of manufacture, such as tires, hoses, power transmission belts, windshield wiper blades, and the like. | 10-02-2008 |
| 20080210689 | SELF-SEALING APPARATUS FOR CHEMICAL REACTION VESSEL - According to an aspect of the invention, an apparatus for self-sealing of a reaction vessel, such that the reaction vessel may be repeatedly accessed by a fluid transfer mechanism and subsequently self-sealed, is detailed. The reaction vessel has an access opening, and the apparatus comprises a cap, a ball which is comprised of a magnetizable material (such as a ferrous metal), and a ring magnet. The cap is sized to fit over the reaction vessel access opening, and has an access port. The cap has an internal surface which faces the reaction vessel, and an external surface, which faces away from the reaction vessel. The ball is sized to fit over the cap access port, such that a portion of the ball seats partially in the cap access port on the cap internal surface, thus sealing the cap access port. According to an aspect of the invention, the ball may be comprised of a ferromagnetic material, or a magnetizable material that is preferably magnetized. The ring magnet produces a magnetic field, and is mounted to the cap on the cap external surface. The ring magnet is spaced from the cap such that the magnetic field is sufficient to hold the ball in the cap access port, and to reseat the ball in the cap access port after the reaction vessel is accessed. | 09-04-2008 |
