Polyblends

Details Polyblends Polyblends

1982-02-03

1983-09-20

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 74, 525905, C08L 6104

Patent

active

044057539

ABSTRACT:
Polyblends are described which comprise (i) 40 to 60% by weight of polyphenylene oxide; (ii) from 10 to 30% by weight an SAN or ABS polymer comprising from 2 to 14% by weight of acrylonitrile; and (iii) from 10 to 30% by weight of a styrene/maleic anhydride copolymer containing from 5 to 18% by weight of maleic anhydride; and in which: (a) the weight proportion of rubber (ungrafted basis) in the polyblend is less than 8%; and (b) the proportions of acrylonitrile and maleic anhydride are selected such that, when plasticized only with 4 parts of triphenyl phosphate for each 100 parts by weight of polyphenylene oxide, the Izod impact strength is at least 50 J/M notch and the distortion temperature under load is at least 110.degree. C.

REFERENCES:
patent: 4234701 (1980-11-01), Abolins et al.

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