POLYPROPYLENE-BASED RESIN COMPOSITION EXCELLENT IN MOLDABILITY AND PHYSICAL PROPERTY

摘要

PROBLEM TO BE SOLVED: To provide a resin composition having high fluidity, developing good physical properties, excellent in moldability and processability, shrinkage characteristics and mechanical properties. SOLUTION: This polypropylene-based resin composition excellent in moldability and physical properties comprises (A) 50-70 wt.% propylene-ethylene block copolymer having 210-400 g/10 min MFR of propylene homopolymer and >=0.98 isotactic pentad fraction and 65-85 wt.% propylene content of copolymer part, (B) 10-25 wt.% ethylene-octene random copolymer and/or ethylene- butene copolymer, (C) 4-9 wt.% styrene-based hydrogenated block copolymer and (D) 16-24 wt.% talc.