Thermal oxidatively stable polycarbonate

Details Thermal oxidatively stable polycarbonate Thermal oxidatively stable polycarbonate

1972-07-17

1977-10-18

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 18PF, 260 458A, 260 49, C08G 6362, C08L 6900

Patent

active

040545520

ABSTRACT:
A thermal oxidatively stable polycarbonate composition stabilized with a minor amount of an ester of a phosphorodihalidous acid and to a process for preparing a thermal oxidatively stable polymer. In the process, the ester of a phosphorodihalidous acid is reacted with the bisphenol-A monomer. In addition, an epoxy may be used in admixture with the composition, which epoxy compound has the following formula: ##STR1##

REFERENCES:
patent: 3378523 (1968-04-01), Caldwell et al.
patent: 3489716 (1970-01-01), Calkins
patent: 3578634 (1971-05-01), Bialous et al.
patent: 3634312 (1972-01-01), Babillis

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