Aromatic polysulfone thermoplastics protected from discoloration

Details Aromatic polysulfone thermoplastics protected from discoloration Aromatic polysulfone thermoplastics protected from discoloration

1987-05-14

1988-04-26

Jacobs, Lewis T.

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...

524356, 524361, 524362, C08K 507

Patent

active

047405473

ABSTRACT:
A thermoplastic composition is provided which comprises an aromatic polysulfone with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.

REFERENCES:
patent: 3755256 (1973-08-01), Beverly
patent: 3794615 (1974-02-01), Beverly et al.
patent: 3845162 (1974-10-01), Hess et al.

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