POLYPROPYLENE RESIN COMPOSITION FOR AUTOMOTIVE INTERIOR

摘要

PROBLEM TO BE SOLVED: To provide a polypropylene resin composition for automotive interior, which can provide a molded product which has a beautiful appearance with invisible flow mark or weld in addition to excellent mechanical physical properties such as rigidity or impact strength, and further excellent in light discoloring resistance and glass fogging resistance as an automotive interior component. SOLUTION: The polypropylene resin composition for automotive interior contains (A) a crystalline propylene block copolymer including 17-25 wt.% 23°C n-decane-soluble content and having MFR (230°C) of 20-40 g/10 min; (B) a propylene homopolymer having Mw/Mn of 10 or more and Mz/Mw of 3.5 or more based on measurement by GPC method; (C) an ethylene-1-butene random copolymer having MFR (230°C) of 1-20 g/10 min and an ethylene content of 50-95 wt.%; (D) a talc having an average particle size of 1.5-3.5μm; and (E) a light-fast stabilizer having Mw of 700 or more and containing N-H and N-CH3in the molecule respectively in specified ratios. COPYRIGHT: (C)2009,JPO&INPIT