POLYPROPYLENE RESIN COMPOSITION WITH EXCELLENT FOAMING CHARACTERISTICS DUE TO A SPECIFIC POLYDISPERSITY INDEX, MELT INDEX, ETHYLENE CONTENT, AND MELT STRENGTH AND FOAM USING THE SAME

摘要

PURPOSE: A polypropylene resin composition is provided to ensure excellent melt strength, to be economical due to no need of post processing, and to improve foaming magnification and foamed cell density.;CONSTITUTION: A polypropylene resin composition comprises 100.0 parts by weight of a crystalline ethylene-propylene random copolymer resin and 1~20 parts by weight of foaming agent. The crystalline ethylene-propylene random copolymer resin has 0.1~10 g/10 minute of melt index, 0.5~10 weight% ethylene content, 10 or more of polydispersity index, and 200 mN or more of melting strength.;COPYRIGHT KIPO 2010