| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-resistant olefinic thermoplastic elastomer composition and a molded product thereof excellent in heat resistance, impact resistance, wear resistance, weatherproofness, and recycling property. SOLUTION: The heat-resistant olefinic thermoplastic elastomer comprises 15-95 mass% olefinic thermoplastic elastomer A and 5-85 mass% 4-methyl-1-pentene-based polymer B. The olefinic thermoplastic elastomer A comprises (1) propylene-based polymer, which is chosen among propylene homopolymers and propylene random copolymers and forms porous particles having a particle diameter of 50-5,000μm and apparent density of 0.2-0.6 g/cm<SP>3</SP>, and (2) ethylene-α-olefin copolymer elastomer. The molded product containing the composition is also provided. COPYRIGHT: (C)2009,JPO&INPIT
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