High impact polypropylene resin

Details High impact polypropylene resin High impact polypropylene resin

1981-08-12

1983-10-04

Henderson, C. A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524322, 524211, 524394, 524400, 525232, C08G 2312, C08K 509, C08K 520

Patent

active

044079982

ABSTRACT:
An injection molding or extrusion polypropylene composition having improved impact strength and improved weld line properties, wherein the polypropylene composition comprises a blend composition of an isotactic polypropylene homopolymer having a number average molecular weight as measured by GPC of at least 15,000, about 5 to about 15 parts by weight of a zinc neutralized sulfonated EPDM terpolymer per 100 parts by weight of the isotactic polypropylene homopolymer, and about 5 to about 15 parts by weight of a high molecular weight polypropylene.

REFERENCES:
patent: 3642728 (1972-02-01), Canter
patent: 3974240 (1976-08-01), Bock
patent: 3974241 (1976-08-01), Lundberg
patent: 4151137 (1979-04-01), Duvdevani
patent: 4153588 (1979-05-01), Makowski
patent: 4160751 (1979-07-01), Bock
patent: 4164512 (1979-08-01), Brenner

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