| 摘要 |
<p>PURPOSE:Titled composition, improved in adhesion without deterioration of the original mechanical strength and heat aging characteristics of an EP rubber, which comprises an ethylene-propylene copolymer rubber (EP rubber) and a polyisoprene. CONSTITUTION:A liquid isoprene rubber (preferably one prepared by emulsion polymerization) of intrinsic viscosity [eta] 0.2-1.5 (at 30 deg.C, in toluene), having 30% or less of the total of 1.2-bonds and 3.4-bonds, of a microstructure, is used. 100pts.wt. of an EP rubber are compounded with 5-40pts.wt. of said polyisoprene rubber. The EP rubber composition obtained, is suitable for the preparation of tire, belt, hose, rubber coated sheet, etc.</p> |
