公开(公告)号：US20080188621A1

公开(公告)日：2008-08-07

申请号：US11587904

申请日：2005-04-28

申请人： Kotaro Ichino ,  Masao Kunizane ,  Yuji Ishit ,  Kunihide Hiraoka ,  Masaaki Kawasaki ,  Hidetatsu Murakami ,  Keiji Okada

发明人： Kotaro Ichino ,  Masao Kunizane ,  Yuji Ishit ,  Kunihide Hiraoka ,  Masaaki Kawasaki ,  Hidetatsu Murakami ,  Keiji Okada

IPC分类号： C08L9/02

CPC分类号： C08L21/00 ,  B60C1/0016 ,  C08L9/00 ,  C08L9/02 ,  C08L23/16 ,  C08L53/00 ,  C08L2666/02 ,  C08L2666/08

摘要： Provided is a rubber composition which can give a tire excellent in braking performance and fuel consumption and which is excellent in mechanical strength and fatigue resistance, and a use thereof.The rubber composition of the present invention contains a (A) 60 to 0.1 parts by weight of a nonconjugated polyene copolymer, which is a random copolymer containing 96 to 70 mol % of the structural units derived from α-olefin (A1) and 4 to 30 mol % of the structural units derived from a nonconjugated polyene (A2), and has a glass transition temperature (Tg) of −25 to 20° C., (B) 40 to 99.9 parts by weight of a diene rubber and (C) at least one selected from the group consisting of specific polymers.

摘要翻译： 提供一种橡胶组合物，其能够赋予制动性能和燃料消耗优异并且机械强度和耐疲劳性优异的轮胎及其用途。 本发明的橡胶组合物含有（A）60〜0.1重量份的非共轭多烯共聚物，其是含有96〜70摩尔％的来自α-烯烃（A1）的结构单元和4〜 衍生自非共轭多烯（A2）的结构单元的30摩尔％，玻璃化转变温度（Tg）为-25〜20℃，（B）为40〜99.9重量份的二烯系橡胶，（C ）选自由特定聚合物组成的组中的至少一种。