High impact melt-flowable dual continuum melt mixed polymer blen

Details High impact melt-flowable dual continuum melt mixed polymer blen High impact melt-flowable dual continuum melt mixed polymer blen

1979-01-31

1980-09-09

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525197, C08L 2312, C08L 2306, C08L 2316

Patent

active

042218829

ABSTRACT:
Melt mixed, melt-flowable blends of polypropylene, at least about 30% polyethylene and from about 4 to about 11% ethylene-propylene copolymer rubber, and method for making same, are disclosed. Such blends possess higher low temperature Izod and Gardner impact strength than conventional impact polypropylene blends, while having a comparable or higher flexural modulus.

REFERENCES:
patent: 3137672 (1964-06-01), Lehane
patent: 3256366 (1966-06-01), Corbelli
patent: 3256367 (1966-06-01), Jayne
patent: 3957919 (1976-05-01), Von Bodugen et al.
patent: 4087485 (1978-05-01), Huff
patent: 4088714 (1978-05-01), Huff

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