Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof

Details Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof

1986-06-19

1988-04-19

Anderson, Harold D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

528201, 528203, C07D24136

Patent

active

047390581

ABSTRACT:
The present invention relates to bis-quinoxalines of the formula I ##STR1## their preparation, their use as branching agents for the preparation of branched, thermoplastic polycarbonates and the branched thermoplastic polycarbonates.

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