Class / Patent application number | Description | Number of patent applications / Date published |
523150000 | Nonskid or nonslip composition for vehicle or pedestrian movement | 33 |
20080275159 | Rubber compound for tire tread and method for the preparation thereof - A crosslinkable or crosslinked rubber composition is described which includes a diene elastomer having a mass content of cyclic vinyl units of greater than 15%, and which may be used to form a tire tread. Also described is a tire tread and a tire incorporating the tread. The composition contains a linear or branched diene elastomer derived from at least one conjugated diene, and a reinforcing filler. The elastomer has cyclic vinyl units according to a mass content of greater than or equal to 15% and a number-average molecular weight of from 30,000 to 350,000 g/mol. The elastomer may be obtained by anionic polymerization of one or more monomers including a conjugated diene in an inert hydrocarbon solvent with a catalytic system including an organolithium initiator and a polar agent with several heteroatoms. The reaction may be performed batchwise where the polar agent:initiator molar ratio is greater than 8, or continuously where the polar agent:initiator molar ratio is greater than or equal to 3. | 11-06-2008 |
20080275160 | Rubber compound for tire tread and method for the preparation thereof - A crosslinkable or crosslinked rubber composition is described which includes a diene elastomer having a mass content of cyclic vinyl units of greater than 15%, and which may be used to form a tire tread. Also described is a tire tread and a tire incorporating the tread. The composition contains a linear or branched diene elastomer derived from at least one conjugated diene, and a reinforcing filler. The elastomer has cyclic vinyl units according to a mass content of greater than or equal to 15% and a number-average molecular weight of from 30,000 to 350,000 g/mol. The elastomer may be obtained by anionic polymerization of one or more monomers including a conjugated diene in an inert hydrocarbon solvent with a catalytic system including an organolithium initiator and a polar agent with several heteroatoms. The reaction may be performed batchwise where the polar agent:initiator molar ratio is greater than 8, or continuously where the polar agent:initiator molar ratio is greater than or equal to 3. | 11-06-2008 |
20090054549 | RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME - This invention relates to a rubber composition capable of improving a steering stability on a wet road and a low fuel consumption of a tire, and more particularly to a rubber composition comprising 5 to 60 parts by mass of a low-molecular weight aromatic vinyl compound-conjugated diene compound copolymer (B) having an aromatic vinyl compound content of 5 to 80% by mass, a vinyl bond content in a conjugated diene compound portion of 10 to 80% by mass and a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 5,000 to 200,000 and 20 to 90 parts by mass of a filler (C) based on 100 parts by mass of a rubber component (A) composed of at least one of natural rubber and synthetic diene-based rubbers, in which 50 to 90% by mass of the filler (C) is silica. | 02-26-2009 |
20090182069 | RUBBER COMPOSITION CONTAINING MODIFIED CONJUGATED DIENE-BASED POLYMER BONDED TO FULLERENE - A rubber composition obtained by compounding thereinto a rubber component containing 0.5 to 100% by weight of a modified conjugated diene-based polymer having a fullerene bonded thereto in the molecule and having a weight average molecular weight of 50,000 or more excellent processability, superior balance of modulus and heat buildup, excellent cold flowability and superior tan δ balance. | 07-16-2009 |
20090186961 | Rubber Composition for Tire Comprising an Organosilicon Coupling Agent and an Inorganic Filler Covering Agent - Tyre and rubber composition for tyre or tyre semi-finished product, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination:
| 07-23-2009 |
20100010116 | Process for Preparation of Rubber Mixtures Containing Silicon Dioxide - Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l. | 01-14-2010 |
20100010117 | ROAD MARKING PRODUCTS WITH SELF-CLEANING PHOTOCATALYTIC PROPERTIES AND WITH A RENEWABLE HYPERHYDROPHILIC SURFACE - A road marking composition includes by weight, based on the composition total weight: from 5 to 50% of an organic base binder including a resin selected from homopolymers or copolymers derived from vinylic, acrylic or methacrylic monomers, natural or synthetic resins that are soluble in alcohol or in optionally modified oils, especially plant derivative resins, cellulose resins, petroleum resins, polyureas, polyesters and polyethers, except alkyd resins; from 1 to 40% of pigments amongst which from 1 to 100% of the pigment total content is crystallized titanium dioxide in the anatase for; and from 10 to 84% of fillers. A road marking product including the road marking composition and microbeads and/or anti-skid materials is also disclosed. | 01-14-2010 |
20100069529 | TIRE AND CROSSLINKABLE ELASTOMERIC COMPOSITION - A tire includes at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including: (a) an amount higher than or equal to 30 phr, preferably 40 phr to 100 phr, of at least one polyisoprene rubber; (b) an amount lower than or equal to 70 phr, preferably 0 phr to 60 phr, of at least one diene elastomeric polymer other than the polyisoprene rubber (a); (c) an amount higher than or equal to 30 phr, preferably 40 phr to 120 phr, of at least one carbon black reinforcing filler; (d) 0.2 phr to 10 phr, preferably 1 phr to 5 phr, of at least one copolymer of at least one ethylenically unsaturated carboxylic acid or a derivative thereof with at least one ethylenically unsaturated monomer containing at least one polyoxyalkylene side chain. Preferably, the structural element is a tire's sidewall. | 03-18-2010 |
20100105805 | PROCESS FOR PRODUCING RUBBER COMPOSITION FOR TIRE TREAD - A process for producing a rubber composition for tire treads which comprises a step of master batch mixing comprising mixing 20 to 150 parts by mass of silica (B), 1 to 30 parts by mass of a silane coupling agent (C) and a compound promoting reaction of silica and a silane coupling agent (D) with 100 parts by mass of a rubber component (A) comprising at least one of natural rubber and synthetic diene-based rubbers; and a step of final mixing comprising mixing a master batch obtained in the step of master batch mixing, a vulcanizing agent and a vulcanization accelerator. The rubber composition obtained in accordance with the above process increases abrasion resistance and also improves processability and productivity in the steps of mixing and extrusion. | 04-29-2010 |
20100160489 | RUBBER COMPOSITES FOR TIRE TREADS AND TIRE - The rubber composites for tire treads include silica; carbon black; and oil constituents, wherein a ratio (A index) of silica contents, carbon black contents, and oil constituents contents is found by: | 06-24-2010 |
20100179247 | TIRE TREAD WITH RESIN - A cross-linkable or cross-linked rubber composition having a diene rubber selected from one or more natural rubbers, one or more synthetic rubbers or combinations thereof as well as a petroleum hydrocarbon resin. The petroleum hydrocarbon resin may be characterized as having a number-average molecular weight of between 750 and 1000 g/mole, a glass transition temperature of between 20° C. and 60° C. and a polydispersity index of between 1.8 and 3. Furthermore, the resin has units resulting from the polymerization of dicyclopentadiene and dicyclopentadiene codimers with an olefinic composition. Additionally, the rubber composition may include a reinforcing filler that is selected from an inorganic filler, an organic filler or combinations thereof. The composition is useful as a material for articles that include tire components, such as a tire tread. | 07-15-2010 |
20100249270 | Process for Preparing a Diene Copolymer Comprising a Polyether Block, Diene Copolymer Comprising a Polyether Block, Reinforced Rubber Composition and Tire - A process for preparing a functionalized or unfunctionalized diene block copolymer comprising at least one polyether block of number-average molecular weight approximately from 150 to 5000 g/mol linked to at least one block constituted of a diene elastomer via at least one silicon atom. The process allows a high degree of grafting of the polyether to the polymer chains. Also disclosed is a reinforced rubber composition, especially intended for the manufacture of tires, comprising such a diene block copolymer which is intended to interact with the reinforcing filler. Such a rubber composition has improved hysteresis properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state. | 09-30-2010 |
20100292366 | Vulcanizable rubber mixture and rubber products comprising the same - The vulcanizable rubber mixture according to this invention is used for rubber products in particular vehicle tires and vehicle tire treads, but also technical rubber products like belts on conveyor systems, technical hoses, vibration dampers and impact dampers, or wire coatings. All these products benefit from the improved processability that is achieved with the invention in that the mixture comprises a polymer represented by the formula F1-A-F2, or a mixture of F1-A-F2 with an astral or radial coupling product of F1-A-units, coupled by a multivalent coupling agent; wherein F1 represents a terminal functionalization of the polymeric chain, F2 represents a terminal functionalization different from F1; and A represents the polymeric chain of a polymer formed by the copolymerization between one or more conjugated dienes with one or more aromatic vinyl monomers. | 11-18-2010 |
20100298465 | FUNCTIONALIZED POLYMERS AND IMPROVED VULCANIZATES THEREFROM - A functionalized polymer defined by the formula π-R | 11-25-2010 |
20100324167 | ONE-POT SYNTHESIS OF NANOPARTICLES AND LIQUID POLYMER FOR RUBBER APPLICATIONS - A method for performing a one-pot synthesis of a blend of nanoparticles and liquid polymer includes polymerizing a first monomer and optionally a second monomer in a hydrocarbon solvent to form the liquid polymer. The polymerization is terminated before completion with a quenching agent. Then a charge of polymerization initiator, and a mixture of cross-linking agent and mono-vinyl aromatic monomer are added. This causes further polymerization whereby nanoparticles are formed having a core including the cross-linking agent, and a shell including the first monomer or the first monomer and the second monomer. Nanoparticle/liquid polymer blends resulting from the method and rubber compositions incorporating the blends are also disclosed. | 12-23-2010 |
20100324168 | TIRE TREAD-USE RUBBER COMPOSITION - A tire tread-use rubber composition includes from 10 to 50 parts by weight of a tackifying resin having a softening point of from 100° C. to 150° C.; from 70 to 130 parts by weight of a carbon black having a nitrogen specific surface area of from 250 to 400 m | 12-23-2010 |
20110003911 | MODIFIED DIENE RUBBER, PRODUCTION METHOD THEREOF, AND RUBBER COMPOSITION AND TIRE USING THE RUBBER - The present invention provides a modified diene rubber which can be produced economically and improve low-loss properties and wear resistance of a rubber composition made therefrom, as compared with the conventional modified diene rubber. The present invention further provides: a method of producing the modified diene rubber; a rubber composition using the modified diene rubber; and a tire using the rubber composition. Specifically, the present invention provides: a modified diene rubber, produced by first oxidizing diene rubber latex and then adding a polar group-including hydrazide compound to a terminal end of a molecular chain of the diene rubber; a rubber composition, comprising the modified diene rubber; and a tire, comprising a tire member made of the rubber composition. | 01-06-2011 |
20110015302 | METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, AND RUBBER COMPOSITION - A method for producing a modified conjugated diene polymer includes a modification step (A) that subjects a conjugated diene polymer having a cis-1,4-bond content of 98.5% or more and possessing an active end to a modification reaction to introduce an alkoxysilane compound having two or more reactive groups including an alkoxysilyl group into the active end of the conjugated diene polymer, and a condensation step (B) that subjects the residue of the alkoxysilane compound introduced into the active end to a condensation reaction in the presence of a condensation catalyst that includes at least one element among the elements of the groups 4A, 2B, 3B, 4B, and 5B in the periodic table. The method can produce a modified conjugated diene polymer that exhibits low heat build-up and excellent wear resistance. | 01-20-2011 |
20110021660 | FUNCTIONALIZED CARBON BLACK-FILLED RUBBERS - The invention relates to functionalized carbon black-filled rubbers, to the production of such rubber mixtures and to their use in producing vulcanized rubbers that are especially used for producing highly reinforced molded rubber products, especially for producing tires that have an especially low rolling resistance, especially good non-skid properties on wet surfaces and a good abrasion resistance. | 01-27-2011 |
20110021661 | COUPLING AGENT FOR ELASTOMERIC COMPOSITION COMPRISING A REINFORCING FILLER - A method of decreasing the roiling resistance of a tire formed from a sulfur-vulcanized elastomeric by combining at least one diene elastomer and at least one reinforcing filler, with an effective amount of a coupling agent consisting of a combination of:
| 01-27-2011 |
20110028596 | RUBBER COMPOSITION FOR COATING A STEEL WIRE MATERIAL - A rubber composition is provided for coating a steel wire material having initial adhesion strength and water resistant adhesion strength with respect to a steel wire material at or above conventional levels, the rubber composition being compounded with a compound derived from a natural product. Specifically a rubber composition for coating a steel wire material is compounded with from 0.05 to 10 parts by weight of a salt compound per 100 parts by weight of a diene rubber, the salt compound including a dicarboxylic acid derived from a natural product and an amine of a decarboxylated amino acid derived from a natural product. | 02-03-2011 |
20110054069 | RUBBER COMPOSITION HAVING IMPROVED CRACK RESISTANCE - Disclosed is a rubber composition which comprises: (a) a first polymer, (b) a second polymer that is different from said first polymer, (c) a filler, (d) a first low molecular weight polymer comprising a block A and a block B, wherein said block A comprises a majority of the same type of mer units that make up a majority of the first polymer and block B comprises a majority of the same type of mer units that make up a majority of the second polymer, and (e) a second low molecular weight polymer comprising at least one functional group, wherein said first and second low molecular weight polymers have number average molecular weights of about 5,000 to about 100,000. Also disclosed is a method of mixing the rubber composition. | 03-03-2011 |
20110082234 | RUBBER COMPOSITION FOR TREAD AND PNEUMATIC TIRE - The present invention has its object to provide a rubber composition for a tread which can prevent reversion and can also achieve environmental performance (excellent rolling resistance, response to depletion of oil resources, attention to CO | 04-07-2011 |
20110224327 | HIGH HEAT RESISTANT NON-SKID COATINGS - A composition comprising a base and curing agent that when mixed, applied to a substrate and cured, comprise a thick non-skid coating having a plow field texture with an aggressive profile and with exceptional mechanical properties which are maintained after exposure to high heat conditions. | 09-15-2011 |
20120065292 | Rubber Composition for a Tread Comprising an Unsaturated TPS - The present invention relates to a rubber composition comprising a styrene-butadiene copolymer (SBR), a polybutadiene (BR), an unsaturated thermoplastic styrene (TPS) copolymer and a reinforcing filler. | 03-15-2012 |
20120071582 | DIRECT-TO-METAL AND EXTERIOR DURABLE NON-SKID COATING - A non-skid coating described herein attempts to overcome the deficiencies of the conventional coatings with improved external durability and color retention, a reduced level of VOCs, and direct-to-metal (DTM) adhesion using organo-siloxane chemistry. The non-skid coating has a first component having an amino-functional siloxane resin; a second component having a non-aromatic epoxy resin; a spherical filler for lowering viscosity; a pigment; a coarse aggregate; and a thixotropic agent. The amino-functional siloxane resin can be an amino-functional methyl phenyl polysiloxane, diphenyl polysiloxane or silsesquioxane-based resin. The non-aromatic epoxy resin can be cycloaliphatic or aliphatic. The first component is about 5% to 20% weight of the coating, and the second component is about 80% to 95% weight of the coating. | 03-22-2012 |
20120136091 | METHOD OF MAKING HYDROXYARYL-FUNCTIONALIZED INTERPOLYMER BY FREE RADICAL INITIATED POLYMERIZATION - Radical polymerization techniques can be used to polymerize monomers that include a class of hydroxyaryl compounds so as to provide polymers that exhibit desirable properties including, but not limited to, reduced hysteresis. Compositions such as vulcanizates in which such polymers can be utilized and products such as tire components that incorporate and/or are manufactured from such compositions also are provided. | 05-31-2012 |
20120190770 | PROCESS FOR PRODUCING CONJUGATED DIENE-BASED POLYMER, CONJUGATED DIENE-BASED POLYMER, AND CONJUGATED DIENE-BASED POLYMER COMPOSITION - The present invention provides a process for producing a conjugated diene-based polymer comprising polymerizing a monomer component comprising a conjugated diene compound and a silicon-containing vinyl compound using the following compounds (I) and (II), as a polymerization initiator component, | 07-26-2012 |
20120190771 | PROCESS FOR PRODUCING CONJUGATED DIENE-BASED POLYMER, CONJUGATED DIENE-BASED POLYMER, AND CONJUGATED DIENE-BASED POLYMER COMPOSITION - The present invention provides a process for producing a conjugated diene-based polymer, comprising polymerizing a monomer component containing a conjugated diene compound and a silicon-containing vinyl compound using a polymerization initiator represented by the following formula (1) | 07-26-2012 |
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 |
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 |
20130053472 | PROCESS FOR PRODUCING CONJUGATED DIENE RUBBER AND COMPOSITE OF THE SAME RUBBER - A process for producing conjugated diene rubber and its composite includes polymerizing a conjugated diene or a conjugated diene and a vinyl aromatic hydrocarbon in a hydrocarbon solution by anionic polymerization to obtain conjugated diene rubber containing alkali metal in the polymer chain end reacting a with at least one organic silane compound to become a modified conjugated diene rubber. After or during the modified conjugated diene rubber contacting with large amount of water, solvent and water content are removed from the modified conjugated diene by applicable hot sources, wherein coupling ratio of modified conjugated diene rubber is less than 40%, coupling ratio of modified conjugated diene rubber after contact with water is at least 50% The conjugated diene rubber and composite exhibit storage stability. | 02-28-2013 |
20150133580 | NATURAL RUBBER OUTSOLES AND FOOTWEAR - An elastomer composition includes guayule rubber and a butadiene rubber, with at least about 5 phr guayule rubber based on 100 phr elastomer. The cured rubber has a higher coefficient of friction as compared to a cured rubber of the same formulation except using Hevea rubber rather than guayule rubber. | 05-14-2015 |