公开(公告)号：EP0601611A1

公开(公告)日：1994-06-15

申请号：EP93120019.0

申请日：1993-12-11

申请人： SUMITOMO RUBBER INDUSTRIES, CO. LTD ,  SUMITOMO CHEMICAL COMPANY LIMITED

发明人： Saito, Yuichi ,  Fukumoto, Toru ,  Imaoka, Shuji ,  Yamamoto, Keisaku ,  Wakatsuki, kizuku ,  Tsuji, Mitsuji

IPC分类号： C08K3/04 ,  B60C1/00 ,  C08L9/06

CPC分类号： C08K3/04 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L2205/02 ,  Y02T10/862 ,  C08L2666/08

摘要： A rubber composition for tire treads comprising a rubber component consisting essentially of (A) 20 to 100 % by weight of a solution-polymerized styrene-butadiene copolymer rubber having a Mooney viscosity ML₁₊₄ of 30 to 200 at 100°C prepared by copolymerization of styrene, butadiene and a polyvinyl aromatic compound followed by coupling with a trifunctional or tetrafunctional coupling agent, and (B) 0 to 80 % by weight of at least one rubber selected from the group consisting of an emulsion-polymerized styrene-butadiene rubber, a butadiene rubber, natural rubber and a synthetic polyisoprene rubber; and (C) 50 to 250 parts by weight of a carbon black having an iodine adsorption number of not less than 60 mg/g and an oil absorption of not less than 110 mℓ /100 g per 100 parts by weight of said rubber component; the tan δ peak temperature Tg of the cured product of said rubber composition being from -40° to +5°C . The tread rubber composition can be processed without causing bagging with a good dispersibility of carbon black and provides tires having a low rolling resistance and a high grip characteristic.

摘要翻译： 一种用于轮胎胎面的橡胶组合物，其包含基本上由（A）20重量％至100重量％的在100℃下通过共聚制备的门尼粘度ML1 + 4为30至200的溶液聚合的苯乙烯 - 丁二烯共聚物橡胶的橡胶组分 的苯乙烯，丁二烯和聚乙烯基芳族化合物，然后与三官能或四官能偶联剂偶合，和（B）0至80重量％的至少一种选自乳液聚合的苯乙烯 - 丁二烯橡胶， 丁二烯橡胶，天然橡胶和合成聚异戊二烯橡胶; 和（C）每100重量份所述橡胶组分50至250重量份的碘吸附数不小于60mg / g和吸油量不小于110ml / 100g的炭黑; 所述橡胶组合物的固化产物的tanδ峰值温度Tg为-40℃至+5℃。 胎面橡胶组合物可以在不引起炭黑的良好分散性的情况下进行加工而提供具有低滚动阻力和高抓地力特性的轮胎。