Polycarbonates with suppressed aging characteristics

Details Polycarbonates with suppressed aging characteristics Polycarbonates with suppressed aging characteristics

1981-07-15

1983-02-22

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, 528204, C08G 6364, C08G 6362

Patent

active

043749739

ABSTRACT:
Polycarbonate copolymers from bisphenol-A containing terephthalate moieties constituting 5 or 10 mol percent of the polymer, whereby after long exposure to working temperature the polymer retains Izod impact resistance of at least 9 ft. -lbs. per inch of notch.

REFERENCES:
patent: 3028365 (1962-04-01), Schnell et al.
patent: 3169121 (1965-02-01), Goldberg
patent: 3220976 (1965-11-01), Goldberg
patent: 3553167 (1971-01-01), Schnell et al.
patent: 4064108 (1977-12-01), Inata et al.
patent: 4107143 (1978-08-01), Inata et al.
patent: 4156069 (1979-05-01), Prevorsek

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