| 摘要 |
PROBLEM TO BE SOLVED: To provide an ethylene/propylene copolymer rubber composition which can be continuously crosslinked in hot air to form a crosslinked product, desirable as, especially a thin rubber article, having no surface tackiness and no inside abnormal foams, and being excellent in heat resistance, compression set resistance, and extrudability. SOLUTION: The ethylene/propylene copolymer rubber composition comprises (A) an ethylene/propylene copolymer rubber containing 40-80 mass% (a1) ethylene-derived structural component, 20-60 mass% (a2) propylene-derived structural component, and 0.1-10 mass% (a3) structural component derived from a functional-group-containing olefin compound (the total of (a1) to (a3) being 100 mass%), (B) an organic peroxide, and (C) a metal oxide. COPYRIGHT: (C)2009,JPO&INPIT
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