A rubber composition containing (A) 100 parts by weight of an amorphous or low-crystalline ethylene-α-olefin copolymer rubber having an ethylene content of 70 to 90 mole%, a molecular weight distribution (Mw/Mn) of 3.0 or more and a Mooney viscosity ML₁₊₄ (100°C) of 5 to 80; and (B) 1 to 120 parts by weight of a liquid ethylene-α-olefin random copolymer having an ethylene content of 40 to 90 mole% and an intrinsic viscosity [η] of 0.01 to 0.4 dl/g as measured in decalin at 135°C.
一种橡胶组合物,含有(A)100 重量份的无定形或低结晶
乙烯-α-烯烃共聚橡胶,其
乙烯含量为 70 至 90 摩尔%,分子量分布 (Mw/Mn) 为 3.0 或更高,门尼粘度 ML₁₊₄(100°C)为 5 至 80;以及 (B) 1 至 120 重量份的液态
乙烯-α-烯烃无规共聚物,其
乙烯含量为 40 至 90 摩尔%,在
癸醛中于 135°C 测得的固有粘度[η]为 0.01 至 0.4 分升/克。