Process for preparing polycarbonates using substituted...

C - Chemistry – Metallurgy – 08 – G

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C08G 63/62 (1980.01)

Patent

CA 1161987

ABSTRACT OF THE DISCLOSURE An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting A dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a substituted pyridine or a salt of a substituted pyridine.

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