Abstract: A wear resistant resin composition containing (A) 100 parts by weight of a modified microblend obtained by bonding an organic acid group to a microblend consisting of 1 to 70 wt % of polypropylene and 99 to 30 wt % of a propylene-ethylene random copolymer consisting of 15 to 50 mol % of an ethylene polymer unit and 85 to 50 mol % of a propylene polymer unit, or a mixture of the microblend and the modified microblend, and (B) 1 to 1,000 parts by weight of at least one filler of a fibrous filler or a lamellar filler, the microblend contains 10 to 90 wt % of a component eluting at a temperature of −40 to +30° C. based on the total of all the eluting components fractionated by temperature rise elution fractionation using o-dibromobenzene as a solvent. The composition has a flexural modulus of 2,000 MPa or less.

Abstract: A wear resistant resin composition containing (A) 100 parts by weight of a modified microblend obtained by bonding an organic acid group to a microblend consisting of 1 to 70 wt % of polypropylene and 99 to 30 wt % of a propylene-ethylene random copolymer consisting of 15 to 50 mol % of an ethylene polymer unit and 85 to 50 mol % of a propylene polymer unit, or a mixture of the microblend and the modified microblend, and (B) 1 to 1,000 parts by weight of at least one filler of a fibrous filler or a lamellar filler, the microblend contains 10 to 90 wt % of a component eluting at a temperature of −40 to +30° C. based on the total of all the eluting components fractionated by temperature rise elution fractionation using o-dibromobenzene as a solvent.