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    • 2. 发明授权
    • Rubber composition and tire using the same
    • 橡胶组合物和轮胎使用相同
    • US07608667B2
    • 2009-10-27
    • US11275860
    • 2006-02-01
    • Noriko Endo
    • Noriko Endo
    • C08L9/00C08L25/02
    • C08L9/06B60C1/0016C08C19/02C08L15/00C08L2666/08
    • A rubber composition comprises as a rubber component (A) an aromatic vinyl compound-conjugated diene compound copolymer polymerized with a lithium-based polymerization initiator and having a polystyrene-conversion weight average molecular weight of 3.0×105−3.0×106 as measured by a gel permeation chromatography and (B) 10-200 parts by mass, based on 100 parts by mass of the copolymer (A), of a hydrogenated styrene-butadiene copolymer having a polystyrene-conversion weight average molecular weight of 5.0×103−2.0×105 as measured by a gel permeation chromatography and a bound styrene content of 10-70 mass % in which 25-50% of double bonds in butadiene portion is hydrogenated.
    • 橡胶组合物包含橡胶组分(A)与锂基聚合引发剂聚合的芳族乙烯基化合物 - 共轭二烯化合物共聚物,并且通过凝胶渗透测量的聚苯乙烯换算重均分子量为3.0×10 5 -3.0×10 6 色谱法和(B)10-200质量份,基于共聚物(A)100质量份,聚苯乙烯换算重均分子量为5.0×10 3 -2.0×10 5的氢化苯乙烯 - 丁二烯共聚物,由 凝胶渗透色谱法和结合苯乙烯含量为10-70质量%,其中丁二烯部分中的25-50%的双键被氢化。