Thermally stable carbonate polymer composition

Details Thermally stable carbonate polymer composition Thermally stable carbonate polymer composition

1985-04-15

1988-02-02

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524101, 524108, 524114, 524133, 524135, 524141, 524151, 524154, 524291, 524342, 524343, 524539, 524540, C08K 506, C08K 515

Patent

active

047229551

ABSTRACT:
Carbonate polymer compositions exhibit good thermal stability and good non-yellowing characteristics. Compositions comprise a carbonate polymer (e.g., a homopolycarbonate of bisphenol A), a heat stabilizing phosphorous compound (e.g., an organo-phosphite or an organo-phosphonite), an epoxy compound containing internal acyclic ether linkages (e.g., a diglycidyl ether of a polypropylene glycol), and optionally a hindered phenol. Such compositions retain desirable properties upon exposure to hot and humid conditions.

REFERENCES:
patent: 3634312 (1972-01-01), Babillis et al.
patent: 3859248 (1975-01-01), Bialous et al.
patent: 3880799 (1975-04-01), Hoogeboom
patent: 3978020 (1976-08-01), Liberti
patent: 4066611 (1978-01-01), Axelrod
patent: 4076686 (1978-02-01), Calkins
patent: 4145329 (1979-03-01), Mark et al.
patent: 4556681 (1985-12-01), Liberti et al.

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