High impact melt-flowable dual continuum melt mixed polymer blends of polypropylene, polyethylene and ethylene-propylene rubber

摘要

Melt mixed, melt-flowable blends of polypropylene, at least about 30% polyethylene and from about4to about 11 % ethylene-propylene copolymer rubber, and method for making same, are disclosed. Such blends possess higher low temperature zod and Gardner impact strength than conventional impact polypropylene blends, while having a comparable or higher flexural modulus.