Compositions comprising copolymers of a vinyl aromatic compound

Details Compositions comprising copolymers of a vinyl aromatic compound Compositions comprising copolymers of a vinyl aromatic compound

1977-10-06

1980-11-18

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 69, 525 74, 525 75, 525 76, 525 77, C08L 6104

Patent

active

042347017

ABSTRACT:
Thermoplastic molding compositions are disclosed which comprise an intimate admixture of (a) a copolymer of a vinyl aromatic compound and an .alpha., .beta.-unsaturated cyclic anhydride, including rubber-modified copolymers thereof, and (b) impact modifiers comprising graft copolymers, copolyesters, and rubber-modified homopolymers. Optionally, the compositions can also include a polyphenylene ether resin and further, optionally, a normally liquid polybutadiene oligomer. Mixing (a) with a polyphenylene ether leads to a compatible composition, markedly improved in heat deflection temperature.

REFERENCES:
patent: 3383435 (1968-05-01), Cezek
patent: 3642949 (1972-02-01), Stafford et al.
patent: 3792123 (1974-02-01), Abolins et al.
patent: 3833688 (1974-09-01), Abolins et al.
patent: 3956423 (1976-05-01), Katchman

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