Thermoplastic blend of polypropylene, EPM and propylene-ethylene

Details Thermoplastic blend of polypropylene, EPM and propylene-ethylene Thermoplastic blend of polypropylene, EPM and propylene-ethylene

1979-07-27

1981-02-17

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...

525240, C08L 2316, C08L 2312

Patent

active

042516463

ABSTRACT:
Thermoplastic polymer blends of improved impact strength and knit line toughness consisting essentially of (a) 60-90% by weight polypropylene, (b) 30-35% by weight of thermoplastic crystalline heteroblock propylene-ethylene copolymer and (c) 30-35% by weight of an ethylene-propylene copolymer rubber.

REFERENCES:
patent: 3036987 (1962-05-01), Ranalli
patent: 3478128 (1969-11-01), Hagemeyer et al.
patent: 3632674 (1972-01-01), Aishima et al.
patent: 3882197 (1975-05-01), Fritz et al.
patent: 4036912 (1977-07-01), Stricharczuk

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