PROPYLENE RESIN COMPOSITION AND MOLDED PRODUCT OF THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a propylene resin composition having an excellent balance of coating properties and mechanical properties premised on primerless coating of a water-borne coating material, and to provide a molded product thereof. SOLUTION: The propylene resin composition is characterized by comprising 100 pts. wt. of a propylene-ethylene block copolymer composed of a propylene homopolymer moiety having≥0.98 isotactic pentad fraction and a propylene-ethylene copolymer moiety having≤-40°C glass transition temperature and 3-15 dl/g intrinsic viscosity [η] measured in decalin at 135°C and 1-13 pts. wt. of a modified polypropylene having a relationship between graft ratio of polar functional groups and weight-average molecular weight satisfying a specific formula. COPYRIGHT: (C)2004,JPO