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    • 29. 发明申请
    • RUBBER COMPOSITION AND PNEUMATIC TIRE
    • 橡胶组合物和气动轮胎
    • US20110319519A1
    • 2011-12-29
    • US13255156
    • 2010-03-11
    • Takuo SoneRyouji Tanaka
    • Takuo SoneRyouji Tanaka
    • C08L25/10C08K3/04C08K3/36
    • B60C1/0016C08C19/44C08K3/013C08K3/04C08K3/36C08K5/548C08L9/00C08L9/06C08L15/00Y02T10/862C08L2666/08
    • A rubber composition from which a vulcanized rubber suitable for producing, for example, a pneumatic tire having excellent abrasion resistance, breaking strength, rolling resistance, wet skid resistance, and the like can be prepared. The rubber composition comprises a rubber component (A) comprising a diene rubber comprising 20 mass % or more of a modified styrene-butadiene copolymer (a1) and 5 mass % or more of a modified conjugated diene polymer (a2), and a filler (B), wherein the modified conjugated diene polymer (a2) is a conjugated diene polymer obtained by modifying the active terminals of a conjugated diene polymer having a cis-1,4 bond content of 80% or higher, with an alkoxysilane compound, and the filler (B) comprises at least either of 2 to 100 mass parts, relative to 100 mass parts of the rubber component (A), of carbon black (b1) and 30 to 100 mass parts, relative to 100 mass parts of the rubber component (A), of silica (b2).
    • 可以制备适合于制造具有优异的耐磨性,断裂强度,滚动阻力,抗湿滑性等的充气轮胎的硫化橡胶的橡胶组合物。 橡胶组合物包含橡胶组分(A),其包含二烯橡胶,其包含改性苯乙烯 - 丁二烯共聚物(a1)和20质量%以上的改性共轭二烯聚合物(a2)的20质量%以上,和填充剂 B),其中所述改性共轭二烯聚合物(a2)是通过用烷氧基硅烷化合物改性具有80%以上的顺式-1,4键含量的共轭二烯聚合物的活性末端而获得的共轭二烯聚合物, 相对于100质量份的橡胶成分,填料(B)相对于100质量份橡胶成分(A),炭黑(b1)和30〜100质量份至少包含2〜100质量份 (A),二氧化硅(b2)。