Stabilization of cyclic polycarbonates with organic carboxylic o

Details Stabilization of cyclic polycarbonates with organic carboxylic o Stabilization of cyclic polycarbonates with organic carboxylic o

1991-02-11

1992-08-25

Anderson, Harold D.

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

Synthetic resins

From reactant having a halogen atom or oxygen single bonded...

25218223, 25218229, 528370, C08G 6438

Patent

active

051420244

ABSTRACT:
The thermal stability of cyclic polycarbonate oligomers may be increased by reacting the oligomers with an effective amount of organic carboxylic or sulfonic acids.

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