| 摘要 |
PURPOSE:A resin composition excellent in low-temperature impact resistance, comprising an ethylene/propylene random copolymer, an ethylene/propylene/ (diene) copolymer rubber and an ethylene/alpha-olefin linear copolymer having short- chain branches. CONSTITUTION:The titled composition is prepared from (A) an ethylene/propylene random copolymer, ethylene content 3-9wt%, stiffness >=10,000kg/cm<2>, MFI 0.1-40g/10min, (B) at least one rubber substance selected from the group consisting of an ethylene/propylene copolymer rubber and an ethylene/propylene/ diene terpolymer, and (C) an ethylene/12 C or lower alpha-olefin linear copolymer having short-chain branches, MFI 0.5-40g/10min, density 0.900-0.950g/cm<3>. The sum of component A and B in this composition is 1-99wt% and component A in the sum of components A and B is 99-50wt%. |
