Weatherable ASA composition

Details Weatherable ASA composition Weatherable ASA composition

1997-04-16

1999-11-23

Buttner, David

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 78, 525 80, C08L 5104, C08L 2512, C08L 3308

Patent

active

059902396

ABSTRACT:
A thermoplastic composition comprising (a) a polyalkyl acrylate rubber characterized that it contains no grafted phase, and (b) a poly (vinyl aromatic-co-nitrile)-grafted polyalkyl acrylate rubber, and (c) ungrafted poly (vinyl aromatic-co-nitrile) having a number average molecular weight of about 20,000 to 100,000 g/mole is disclosed. The composition which contains about 15 to 35% by weight of polyalkyl acrylate rubber having a weight average particle size of about 0.02 to 1 microns and wherein weight ratio between (a) to the total (a)+(b) is 0.1 to 0.5, is characterized in having improved physical and mechanical properties.

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