Weather resistant thermoplastic resin composition

Details Weather resistant thermoplastic resin composition Weather resistant thermoplastic resin composition

1987-05-05

1988-08-09

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...

525 75, 525 76, 525 79, 525 80, 525 84, 525 85, 525 86, C08L 5104, C08L 5106, C08L 2512, C08L 2514

Patent

active

047628863

ABSTRACT:
A weather resistant thermoplastic resin composition which comprises (A) a graft polymer comprising (A-1) chosen from a copolymer of ethylene and propylene, a terpolymer of ethylene, propylene and a non-conjugated diene, a copolymer of ethylene and vinyl acetate, an alkyl acrylate or methacrylate polymer and a chlorinated polyethylene and (A-2) at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and unsaturated carboxylic acid alkyl esters grafted thereon and (B) a terpolymer comprising styrene aromatic compounds, vinyl cyanide compounds and unsaturated carboxylic acid alkyl esters. The weight proportion of the graft polymer (A) and the terpolymer (B) is preferably from 10:90 to 90:10. In particular the amounts of styrene the vinyl cyanide compounds and the unsaturated carboxylic acid alkyl esters in the terpolymer (B) are 3 to 65% by weight, 2 to 35% by weight and 3 to 95% by weight, respectively. The result is an improved in color development, impact resistance and resistance to thermal decomposition.

REFERENCES:
patent: 4166081 (1979-08-01), Fournier et al.
patent: 4419491 (1983-12-01), Sakano et al.

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