Carbonate polymer composition

Details Carbonate polymer composition Carbonate polymer composition

1984-07-06

1985-07-30

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524423, C08K 543

Patent

active

045322848

ABSTRACT:
Fire retardant carbonate polymer compositions having increased processing stability are disclosed. The use of metal sulfates or metal bisulfates having a pka from 1-5 in the amount from 0.001 to 1.0 percent by weight is effective to reduce molecular weight changes during melt shearing. The fire retardancy is provided by metal aromatic sulfimides.

REFERENCES:
patent: 4208489 (1980-06-01), Schmidt et al.
patent: 4233100 (1980-09-01), Reinert
patent: 4254015 (1980-03-01), Thomas et al.
patent: 4366276 (1982-12-01), Freitag et al.

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