Preparation of dihydroxydiphenyl-copolycarbonates by melt...

Details Preparation of dihydroxydiphenyl-copolycarbonates by melt... Preparation of dihydroxydiphenyl-copolycarbonates by melt...

C - Chemistry, Metallurgy

08

G

C08G 64/30 (2006.01) C08G 64/06 (2006.01)

Patent

CA 2306157

The invention relates to a method for preparing special copolycarbonates from dihydroxydiphenylene in accordance with the polycarbonate preparation method in the melt, using N-alkyl-substituted piperidines and morpholines as catalysts.

L'invention concerne un procédé de préparation de copolycarbonates spéciaux à base de dihydroxydiphénylènes, selon le procédé de préparation de polycarbonate dans la matière en fusion, les catalyseurs utilisés étant des pipéridines et des morpholines substituées par alkyle en N.

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