Vinyl chloride resin composition with processing aid

Details Vinyl chloride resin composition with processing aid Vinyl chloride resin composition with processing aid

1979-12-19

1981-05-19

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...

525 83, 525228, C08L 2706, C08L 900, C08L 5100

Patent

active

042686369

ABSTRACT:
A composition comprising polyvinyl chloride and a novel polymer processing aid is provided. The polymer processing aid can be obtained either by blending in latex form an alkyl methacrylate copolymer (A) and a copolymer (B) comprising as its essential constituents an alkyl methacrylate, a dialkyl itaconate or an alkyl acrylate, and a diolefin, or by copolymerizing one of the copolymers in the presence of the other copolymer.
The polymer processing aid thus obtained improves the processability of the vinyl chloride resin composition with less reduction in impact strength.

REFERENCES:
patent: 3264373 (1966-08-01), Whitworth et al.
patent: 3520953 (1970-07-01), Sugimoto et al.
patent: 3660529 (1972-05-01), Groch
patent: 3661994 (1972-05-01), Hwa et al.
patent: 4078018 (1978-03-01), Chauvel et al.

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