Copolyester-carbonates containing aliphatic diol co- monomers

Details Copolyester-carbonates containing aliphatic diol co- monomers Copolyester-carbonates containing aliphatic diol co- monomers

C - Chemistry, Metallurgy

08

G

402/176, 400/750

C08G 63/64 (2006.01) C08L 69/00 (2006.01)

Patent

CA 1193389

Abstract of the Disclosure Copolyester-carbonate resins, and articles molded therefrom, exhibiting improved processability comprising the reaction product of; (i) at least one dihydric phenol; (ii) a carbonyl halide carbonate precursor; (iii) at least one difunctional carboxylic acid or a reactive derivative thereof; and (iv) at least one bishaloformate represented by the general formula Image wherein X represents a halogen radical and R represents a alkylene radical, said bishaloformate being present in an amount effective to improve the processability of said resin.

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