Fire retardant carbonate polymer composition

Details Fire retardant carbonate polymer composition Fire retardant carbonate polymer composition

1985-04-24

1986-12-02

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524169, 524281, 524419, 524423, C08K 543

Patent

active

046265635

ABSTRACT:
Flame retardant carbonate polymers containing an aromatic sulfimide, a monomeric or polymeric halogenated organic compound, a metal sulfate having a pka from 1 to 5 and a fibril forming polytetrafluoroethylene as additives in effective amounts give carbonate polymers that are not only flame retardant but are melt stable i.e. show little loss in molecular weight during processing or melt shearing.

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patent: 3651174 (1972-03-01), Bialous
patent: 4208489 (1980-06-01), Schmidt et al.
patent: 4222910 (1980-09-01), Tokuda
patent: 4223100 (1980-09-01), Reinert
patent: 4254015 (1981-03-01), Thomas et al.
patent: 4366276 (1982-12-01), Freitag et al.

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