Preparation of polyarylate of improved color with cobalt salt

Details Preparation of polyarylate of improved color with cobalt salt Preparation of polyarylate of improved color with cobalt salt

1988-10-12

1990-09-18

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528179, 528180, C08G 6332

Patent

active

049579967

ABSTRACT:
Improved polyarylate color is achieved by dissolving in the polyarylate-forming reaction mixture a cobalt salt of an ester of a C.sub.3 to C.sub.20 aliphatic or iso-aliphatic hydrocarbon. The cobalt salt is preferably predissolved prior to addition to the reaction mixture.

REFERENCES:
patent: 4319017 (1982-03-01), Kosanovich et al.

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