Thermoplastic molding materials

Details Thermoplastic molding materials Thermoplastic molding materials

1982-07-16

1984-04-10

Lieberman, Allan

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

Synthetic resins

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

525 85, 525302, 525307, C08L 5104, C08L 5106

Patent

active

044422636

ABSTRACT:
Thermoplastic molding materials contain a copolymer A and a graft copolymer B. The copolymer A is a hard component comprising one or more copolymers of styrene and/or .alpha.-methylstyrene with from 20 to 40% by weight of acrylonitrile.
The graft copolymer B comprises one or more crosslinked acrylate polymer with a mean particle size of 0.5-0.8 .mu.m (d.sub.50 value of the cumulative mass distribution), a particle distribution, expressed by the ratio ##EQU1## in the range Q.gtoreq.0.6, and a glass transition temperature Tg below 0.degree. C. A mixture of styrene and acrylonitrile in a weight ratio from 88:12 to 65:35 is grafted onto this rubber.

REFERENCES:
patent: 3041307 (1962-06-01), Baer
patent: 3691260 (1972-09-01), Mittnacht et al.
patent: 4224419 (1980-09-01), Swoboda et al.
patent: 4384077 (1983-05-01), Gift

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