Resistance being hurt Characteristic revised poriorehuinerasutoma - constituent

摘要

PURPOSE:The titled composition useful as parts for domestic electrical equipment, having improved resistance to scuffing, obtained by blending a specific amount of ethylene-propylene copolymer rubber with a specific amount of ethylene-butene copolymer, a specific amount of polyolefin resin and a specific amount of a specific polyorganosiloxane. CONSTITUTION:(A) 100pts.wt. composition comprising (i) 80-40pts.wt. ethylene- propylene copolymer rubber [preferably containing 20-60wt% propyl ene, having 30-100 Mooney viscosity (100 deg.C)] and/or ethylene-butene copolymer [preferably containing 5-60wt% butene, having 0.05-50g/10min melt flowindex (190 deg.C, 2.16kg load)] and (ii) 20-60pts.wt. polyolefin resin (preferably propylene- ethylene random copolymer, etc.) is blended with (B) 0.1-5pts.wt. polyorganosiloxane (preferably containing 1.5-17mol% diorganosiloxane unit) having 3-80 (preferably 5-70) Wallace plasticity at 23 deg.C, to give the aimed composition.