Use of cobalt salts to improve polyarylate color

C - Chemistry – Metallurgy – 08 – L

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C08L 67/03 (2006.01) C08G 63/19 (2006.01) C08K 5/098 (2006.01)

Patent

CA 1329297

ABSTRACT OF THE DISCLOSURE Improved polyarylate color is achieved by dissolving in the polyarylate-forming reaction mixture a cobalt salt of an ester of a C3 to C20 aliphatic or iso-aliphatic hydrocarbon. The cobalt salt is preferably predissolved prior to addition to the reaction mixture.

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