| 摘要 |
PURPOSE:To provide a composition having remarkably improved processability without causing the bleeding and migration nor the lowering of physical properties of the vulcanized product, by compounding EPDM with hydrogenated liquid diene rubber. CONSTITUTION:The objective composition is prepared by compounding (A) 100pts.wt. of an ethylene-propylene copolymer rubber with (B) 3-40pts.wt. of a hydrogenated product having an iodine value of 15-300, preferably 20-200 and obtained by the hydrogenation of a liquid diene rubber, preferably a liquid polyisoprene rubber or a liquid isoprene-butadiene rubber having a molecular weight of 6,000-100,000, especially 10,000-60,000. |
