Polyaryl ether sulphones

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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Details

528126, 528128, 528174, C08G 6522, C08G 6540

Patent

active

047850728

ABSTRACT:
Aryl ether sulfone polymers comprising a 4,4'-bis-phenylsulfonyl biphenyl and at least two additional arylene structural units exhibit improved toughness and stress crack resistance and a reduced tendency toward crystallization. The polymers and soluble and film-forming from solution, and may be used as coating and impregnating resins for producing laminates, fiber-reinforced composites and the like.

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patent: 4331798 (1982-05-01), Staniland

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