Vinyl chloride resin composition

Details Vinyl chloride resin composition Vinyl chloride resin composition

1981-01-19

1982-06-29

Ziegler, 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 75, 525 78, 525 80, 525 81, 525 82, 525 83, 525 85, 525 86, 525239, 525240, C08L 5100

Patent

active

043373240

ABSTRACT:
A monomer mixture comprising .alpha.-methylstyrene or 2-isopropenylnaphthalene, methyl methacrylate, and acrylonitrile is polymerized in the presence of a crosslinked polymer obtained by copolymerizing a monofunctional monomer such as .alpha.-methylstyrene with a small quantity of a polyfunctional monomer such as divinylbenzene to obtain a copolymer (C). A vinyl chloride resin composition formulated by blending the copolymer (C) thus obtained with a vinyl chloride resin and an impact strength modifier resin in a specific proportion possesses improved thermal deformation resistance and impact strength while retaining processability comparable to that of the vinyl chloride resin mixed with the impact strength modifier resin.

REFERENCES:
patent: 4220734 (1980-09-01), Kosugi et al.

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