Polypropylene resin composition for extrusion molding Polypropylene resin composition for extrusion molding

摘要

A resin composition comprising polypropylene, polyethylene and an ethylene-propylene copolymer rubber, wherein the total of polyethylene and ethylene-propylene copolymer rubber is 35% by weight or less and the ratio of the melt index of polyethylene to polypropylene (polyethylene / . The resin composition having a flexibility of 1 to 70 is a resin composition for extrusion molding which is not subjected to a significant deterioration in heat resistance and tensile strength, and is especially excellent in impact strength at low temperatures and is pressurized for a hot water heating system.