Copolymers and process for their preparation

Details Copolymers and process for their preparation Copolymers and process for their preparation

1980-09-17

1983-01-04

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...

264176R, C08G 6376, C08L 6300, C08L 6700

Patent

active

043673171

ABSTRACT:
Novel copolymers are prepared by the interaction of a melt mix of a high molecular weight or low molecular weight bisphenol A polycarbonate polymer and a high molecular weight diprimary dialcohol polyester polymer such as polyethylene terephthalate polymer. The resulting copolymers are transparent, relatively tough and are useful as glazing materials or molding compounds and are capable of maintaining dimensional stability at temperatures approaching their glass transition temperature.

REFERENCES:
patent: 3218372 (1965-11-01), Okamura et al.
patent: 3299172 (1967-01-01), Schade et al.
patent: 3413379 (1968-11-01), Schade et al.

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