| 摘要 |
PURPOSE:To obtain the subject composition, excellent in mechanical characteristics, rubber elasticity, weather resistance, etc., and suitable as automotive parts, etc., by blending a hydrogenated block copolymer (modified substance thereof) with an alpha,beta-unsaturated nitrile-conjugated diene copolymer (hydrogenated substance thereof) in a specific proportion. CONSTITUTION:A composition obtained by blending (A) a hydrogenated block copolymer prepared by hydrogenating a block copolymer consisting of one or more polymer blocks consisting essentially of a vinyl aromatic compounds and one or more polymer blocks consisting essentially of a conjugated diene compound and having 5000-1000000 number-average molecular weight and <=10 molecular weight distribution and/or modified substance of the above- mentioned hydrogenated block copolymer with (B) an alpha,beta-unsaturated nitrile- conjugated diene based copolymer rubber and/or hydrogenated substance thereof at 95/5-50/50 weight ratio of the components (A)/(B) and crosslinking at least the component (B). |
