Polyphenols as polycarbonate branching agents

Details Polyphenols as polycarbonate branching agents Polyphenols as polycarbonate branching agents

1997-12-11

1999-09-07

Mosley, Terressa

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C08G 6400

Patent

active

059488760

ABSTRACT:
Branched polycarbonates are prepared by the reaction of a linear or branched polycarbonate with a branching resin having a molecular weight up to about 3,000, typically a novolak or a bisphenol polymer. The reaction preferably takes place in the presence of a carbonate equilibration catalyst such as a quaternary bisphenolate.

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