Patent ID: 6441093
Filing Date: 2002-08-27
Classification: C08J,C08L

Abstract:
A thermoplastic elastomer composition for calender-molding obtained by dynamically heat-treating a mixture comprising 40 to 95% by weight of the component (A) and 60 to 5% by weight of the component (B), the sum of the components (A) and (B) being 100% by weight, respectively described below:(A) an oil-extended olefin copolymer rubber containing 100 parts by weight of an olefin copolymer rubber having a Mooney viscosity (ML1+4100Â° C.) of 120 to 350 and 20 to 150 parts by weight of mineral oil softening agent, and (B) a polypropylene resin composed of a propylene homopolymer as a first segment and a propylene-ethylene random copolymer having an intrinsic viscosity of tetralin solution at a temperature of 135Â° C. of 0.5 to 6.0 dl/g and a weight ratio of ethylene to propylene of 10/90 to 60/40 as a second segment, wherein the weight ratio of the first segment to the second segment is 95/5 to 50/50.