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Tire with component of rubber composition comprised of a combination of functionalized emulsion SBR and coupled solution SBR
Tire with component of rubber composition comprised of a combination of functionalized emulsion SBR and coupled solution SBR
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机译:具有橡胶组合物成分的轮胎,其中包含功能化乳液SBR和偶联溶液SBR的组合
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摘要
This invention relates to a tire having at least one component (e.g. tread) of a rubber composition comprised of a carbon black and precipitated silica reinforced elastomer blend comprised of a combination of hydroxyl functionalized aqueous emulsion polymerization prepared styrene/butadiene copolymer elastomer (E-SBR) and tin coupled organic solvent solution polymerization prepared styrene/butadiene copolymer elastomer (S-SBR) and/or isoprene/butadiene copolymer elastomer. Preferably, said E-SBR is exclusive of functional groups reactive with alkoxy groups other than said hydroxyl functional groups. A coupling agent as bis(3-triethoxysilylpropyl)polysulfide having an average of from only 2 to 2.6 connecting sulfur atoms in its polysulfidic bridge is used. The invention further relates to an article of manufacture, such as for example a tire, having at least one component of a rubber composition comprised of said elastomer blend.
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