| 摘要 |
PURPOSE:To provide the titled composition having high rigidity as well as high impact strength, and suitable for automobile use, etc., by compounding specific amounts of an organic perixode and a crosslinking assistant to a composition composed of a propylene-ethylene block copolymer having low MI value and a specific ethylene-alpha-olefin random copolymer. CONSTITUTION:The objective composition can be produced by compounding 100pts.(wt.) of a resin composition consisting of (A) 60-80(wt)%, preferably 65-75% propylene-ethylene block copolymer having an MI value of 0.01-5;10min and an ethylene content of preferably 1.0-15% and (B) 15-40%, preferably 25-35% ethylene-alpha-olefin random copolymer having an ethylene content of 40-80%, with (C) 0.01-1pt. of an organic peroxide (e.g. benzoyl peroxide) and (D) 0.05-5pts. of a crosslinking agent (e.g. sulfur, divinylbenzene, etc.) (C/D=1/1-1/10), and melting and kneading the mixture. |
