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| Number | Title | Issue Date |
| 8138260 | Rubber composition for side wall and pneumatic tire using the same By a rubber composition for a side wall, including a rubber component containing a natural rubber component consisting of a natural rubber and a modified natural rubber, 20 to 60 parts by mass of silica, and 0.5 to 15 parts by mass of at least any one of a terpene-b... | 03/20/2012 |
| 8048951 | Natural rubber latex having reduced allergenicity and method of making A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. ... | 11/01/2011 |
| 8039546 | Modified natural rubber latex and method for producing the same, modified natural rubber and method for producing the same, rubber composition and tire This invention provides a modified natural rubber latex formed by charging a polar group-containing mercapto compound into a natural rubber latex to add the polar group-containing mercapto compound to a natural rubber molecule in the natural rubber latex, a modified... | 10/18/2011 |
| 7989546 | Natural rubber latex preservation The Invention relates to a method for the preservation of natural rubber latex comprising the step of adding to natural latex at least one hydrophobically modified saccharide. The hydrophobically modified saccharide is preferably a hydrophobically modified fructan, ... | 08/02/2011 |
| 7902289 | Rubber composition for belt layer steel cord and steel cord coated by the same The present invention provides a rubber composition for coating a belt layer steel cord, which inhibits separation from the steel cord when running the tire. Specifically, the present invention provides a rubber composition for coating a belt layer steel cord compri... | 03/08/2011 |
| 7825185 | Natural rubber latex, natural rubber, rubber composition, and tire using the same The present invention provides natural rubber latex in which glucans being polysaccharides contained in the latex are decomposed by treating the natural rubber latex with an α- and/or β-glucan decomposing enzyme such as amylase and cellulose and in which non-rubbe... | 11/02/2010 |
| 7786208 | Modified natural rubber masterbatch and method for producing the same as well as rubber composition and tire This invention provides a method for producing a modified natural rubber masterbatch, which comprises the step of mixing a modified natural rubber latex, which is formed by adding a polar group-containing monomer to a natural rubber latex to graft-polymerize the pol... | 08/31/2010 |
| 7441574 | Pneumatic tire The present invention relates to a pneumatic tire including at least one component, said at least one component including a rubber composition, said rubber composition including at least one diene based rubber; and at least one metal organic framework material inclu... | 10/28/2008 |
| 7427646 | Natural rubber, rubber composition and pneumatic tire Natural rubber obtained by a deproteinizing treatment of a natural rubber latex and has a total nitrogen content adjusted in the range of 0.12 to 0.30% by weight and a rubber composition and a pneumatic tire using the natural rubber. The processability of natural ru... | 09/23/2008 |
| 7411018 | Rubber mixture and tire The invention relates to a sulfur-vulcanizable rubber compound, in particular for treads of tires, which contains at least one diene rubber, liquid polybutadiene with a molecular weight of 1500-10000 g/mol and a vinyl content of 15-50%, at least one polar filler, at... | 08/12/2008 |
| 7396871 | Rubber modified acrylic and/or vinyl hybrid resins This invention relates to a rubber modified acrylic and/or vinyl resin comprising the mini-emulsion polymerization product of at least one rubber compound substantially dissolved in at least one acrylic monomer and/or vinyl monomer. ... | 07/08/2008 |
| 7351759 | Rubber composition for a tire comprising a coupling agent having a polythiosulfenamide function An elastomeric composition usable for the manufacture of tires, based on at least (i) a diene elastomer, (ii) an inorganic filler as reinforcing filler and (iii), as (inorganic filler/diene elastomer) coupling agent, a polysilylated organosilicon compound which is a... | 04/01/2008 |
| 7335411 | Method of producing a tire composition having improved silica reinforcement Vulcanizable elastomeric compositions and vulcanizates are prepared by employing a strong acid. The strong acid is believed to enhance the reaction between a silica particle and a silica-reactive compound. ... | 02/26/2008 |
| 7241824 | Rubber composition for a tire comprising a coupling agent (white filler/diene elastomer) activated by a heat-triggered radical initiator A sulphur-vulcanizable rubber composition usable for the manufacture of tires, based on at least: (A)—one diene elastomer selected from the group consisting of polybutadienes, natural rubber, synthetic polyisoprenes, butadiene copolymers, isoprene cop... | 07/10/2007 |
| 7202295 | Rubber composition based on diene elastomer and a reinforcing silicon carbide A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, a reinforcing inorganic filler and a coupling agent providing the bond between the inorganic filler and the elastomer, wherein said inorganic filler comprises a silicon ... | 04/10/2007 |
| 7199175 | Tread for a tire having a rigidity gradient A tire tread comprising a rubber composition based on (phr: parts by weight per hundred parts of elastomer): (i) a diene elastomer; (ii) more than 50 phr of an inorganic filler as reinforcing filler; | 04/03/2007 |
| 7195728 | Method for molding rubber product A method of molding a rubber product from a rubber compound by a molding apparatus having a kneading region. A full amount of carbon black (CB) and a full amount of process oil, together with other auxiliary materials except vulcanizing chemicals, are compounded wit... | 03/27/2007 |
| 7186776 | Rubber composition for a tire comprising a multifunctional polyorganosiloxane as coupling agent The present invention relates to a sulfur-cross-linkable elastomeric composition that is useful for the manufacture of tires. This elastomeric composition is based on at least one isoprene elastomer (in particular natural rubber), a reinforcing inorganic filler (in ... | 03/06/2007 |
| 7172650 | Deproteinized natural rubber latex, method of preparing the same, rubber product using the same, and proteolytic agent for deproteinized natural rubber latex The present invention provides a deproteinized natural rubber latex wherein coagulation of a rubber component does not occur when the concentration of calcium ions (Ca2+) is 0.01 mol/L or less and coagulation of the rubber component occurs when the concen... | 02/06/2007 |
| 7098268 | Resin composition This invention relates to a resin composition useful as a vibration-damping agent and the like. The resin composition is formulated by adding 1 wt % or more of styrenated phenol obtained by the reaction of a phenol with styrene to a polycyclic aromatic oligomer obta... | 08/29/2006 |
| 7070705 | Fiber-reinforced rocket motor insulation Insulation for a rocket motor is provided, as is a method for insulating a rocket motor. The insulation includes a cured elastomer and vapor-grown carbon fibers dispersed in the cured elastomer. The cured elastomer is preferably formed from a precursor composition c... | 07/04/2006 |
| 7067577 | Apatite-reinforced resin composition The present invention relates to a resin composition comprising a resin and apatite, wherein referring to the particulate form of said apatite present in the resin composition thus obtained, the apatite is present in a particulate form having an average diameter or ... | 06/27/2006 |
| 6943212 | Deproteinized natural rubber latex, method of preparing the same, rubber product using the same, and proteolytic agent for deproteinized natural rubber latex The present invention provides a deproteinized natural rubber latex wherein coagulation of a rubber component does not occur when the concentration of calcium ions (Ca2+) is 0.01 mol/L or less and coagulation of the rubber component occurs when the concen... | 09/13/2005 |
| 6906126 | Decreasing allergenicity of natural latex rubber prior to vulcanization A method for reducing allergenicity of natural latex rubber. The natural latex rubber, prior to its vulcanization, is admixed with mineral oil and extracted to reduce protein levels therein. Ideally, the mineral oil is characterized as having a density of approximat... | 06/14/2005 |
| 6903155 | Heavy-load tires having a rubber composition that delays irregular wear The present invention relates to tires suitable for bearing heavy loads, and to the use of a rubber composition to form the treads of such tires which delays the appearance of irregular wear on the treads of such tires during travel. The invention applies to tires f... | 06/07/2005 |
| 6900263 | Tires for heavy loads and use of a rubber composition to delay irregular wear on these tires The present invention relates to tires suitable for bearing heavy loads, and to the use of a rubber composition to form the treads of such tires which delays the appearance of irregular wear on the treads of such tires during travel. The invention applies to tires f... | 05/31/2005 |
| 6843939 | UV stabilizing additive composition This invention relates to an UV stabilizing additive composition comprising an ortho-hydroxy triazine compound, a hindered hydroxybenzoate compound and optionally a hindered amine compound. This additive composition may be used to stabilize materials from UV radiati... | 01/18/2005 |
| 6841606 | Natural rubber master batch, production method thereof, and natural rubber composition The natural rubber master batch of the present invention is prepared by mixing a natural rubber latex having its amide linkages cleaved and an aqueous slurry having a filler dispersed in water. Alternatively, the natural rubber master batch is prepared by a method i... | 01/11/2005 |
| 6828383 | Phenolic modified resorcinolic resins for rubber compounding A vulcanizable rubber composition comprises (a) a rubber component; (b) a methylene donor compound; and (c) a methylene acceptor comprising a blend of a high ortho-ortho bonded phenolic novolak resin and a resorcinolic resin. The resin blend can be made by a number ... | 12/07/2004 |
| 6822020 | Tetrahalosilane blends for treating silica Modified silica fillers are prepared by contacting silica with blends or mixtures containing diorganodihalosilanes and tetrahalosilanes in weight ratios of 1:0.1 to 1:2, respectively. While dialkyldichlorosilanes and tetrahalosilanes such as dimethyldichlorosilane a... | 11/23/2004 |
| 6800126 | Preparation and use of composite of rubber and carbon black aggregates and articles of manufacture, including tires, having a component comprised thereof This invention relates to preparation and use of a rubber/carbon black composite comprised of at least one elastomer which contains a dispersion therein of carbon black aggregates. Such carbon black is formed by preparing a pre-blend comprised of uncompacted carbon ... | 10/05/2004 |
| 6797755 | Stabilizers and antiozonants for elastomers Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula (I): [R—S(═O)m—CH2—CH(OH)—CH2] | 09/28/2004 |
| 6794428 | Carbon black coupler A coupler is described for use in carbon black filled rubber compositions. The coupler includes an amine group and a thiol group or a polysulfidic linkage. The coupler improves the interaction of the carbon black with the rubber as measured by a decrease in the tan ... | 09/21/2004 |
| 6767945 | Tire sidewall composition A black rubber sidewall compound essentially free of a silanated rubber which includes a combination of less than 10 phr of a rosin acid type “tackifier” and less than 1 phr of a t-alkanolamine generates, upon curing against a metal mold surface having a finish ... | 07/27/2004 |
| 6743853 | Viscosity stabilizer for natural rubber, viscosity-stabilized natural rubber composition and process for producing the same, and method of controlling rise in viscosity of natural rubber Provided are a viscosity stabilizer comprising carbon black and/or silica and further blended with at least one selected from the group consisting of a plasticizer, a processing aid, a softening agent and a dispersant, a viscosity-stabilized natural rubber compositi... | 06/01/2004 |
| 6713534 | Rubber powders having pulverulent silicatic fillers and prepared from rubbers present in organic solvents, a process for their preparation, and their use A fine-particle, free-flowing rubber powder containing silicatic fillers, one or more organosilanes having trialkoxysilyl groups, and a rubber prepared by solution polymerization is prepared by a process that starts from a two-phase system: 1) filler in water, and 2... | 03/30/2004 |
| 6624230 | Mixtures comprising a filler and an organosilicon compound Mixture of at least one filler and organosilicon compounds of the general formula Y--Sx -Z, wherein the filler is surface-treated, hydrophobic, precipitated silica, are prepared by homogeneously applying an organosilicon compound from a nozzle ... | 09/23/2003 |
| 6527022 | Pneumatic tire having a tread containing a metal oxide aerogel A pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 150 phr of a metal oxide aerogel.... | 03/04/2003 |
| 6525110 | Polysiloxane-containing rubber composition A rubber composition having improved properties containing a starting rubber (e.g., diene rubber) and a polysiloxane having the following alkoxysilyl group (I) and/or acyloxysilyl group (II) and having an average degree of polymerization of 3 to 10,000: .... | 02/25/2003 |
| 6518355 | Pressure-sensitive rubber adhesive and pressure-sensitive adhesive sheet made using the same A rubber-based pressure-sensitive adhesive which (i) contains as the main rubber component a natural rubber comprising, as the main component, fine particles having a particle diameter of 1 μm or smaller contained in a raw natural rubber latex, (ii) cont... | 02/11/2003 |
