POLYPROPYLENE RESIN COMPOSITION AND MOLDED ARTICLE PREPARED THEREFROM

摘要

PURPOSE: A polypropylene resin composition for a plastic cap is provided to ensure excellent heat resistance and abrasion resistance by mixing a high melt tension resin with a highly crystalline α-olefin-propylene copolymer. CONSTITUTION: A polypropylene resin composition comprises (A) a highly crystalline α-olefin-propylene copolymer with an isotactic index of 97% or greater and (B) a high melt tension polypropylene resin. The α-olefin content of the highly crystalline α-olefin-propylene copolymer is 4-8 weight%. The melt index is 2-10 g/10min. The content of the highly crystalline α-olefin-propylene copolymer is 70-95 weight%.