Melt stabilization of poly(arylene sulfide sulfone)s

Details Melt stabilization of poly(arylene sulfide sulfone)s Melt stabilization of poly(arylene sulfide sulfone)s

1987-02-27

1988-09-27

Hoke, Veronica P.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524397, 524432, 524434, 524439, 528388, C08K 308, C08K 310, C08K 322, C08K 324, C08K 509

Patent

active

047742763

ABSTRACT:
Improved poly(arylene sulfide sulfone)s are prepared by contacting these polymers with a zinc source, optionally first with an alkali metal base, for a period of time sufficient to incorporate enough zinc cations to improve the melt stability of the polymers. The polymer can be subsequently cured to increase molecular weight.

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