Method for preparing polycarbonate-polysiloxane block copolymers

A method for preparing polycarbonate-polysiloxane copolymers by reacting oligomeric carbonate bischloroformate and oligomeric bisphenol A-terminated dimethylsiloxane in the presence of a polycarbonate formation catalyst, an organic liquid, and an aqueous phase containing an alkali metal or an alkali...

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Bibliographic Details
Main Authors SILVA, JAMES MANIO, PYLES, ROBERT ALLEN
Format Patent
LanguageEnglish
French
German
Published 27.06.1990
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Summary:A method for preparing polycarbonate-polysiloxane copolymers by reacting oligomeric carbonate bischloroformate and oligomeric bisphenol A-terminated dimethylsiloxane in the presence of a polycarbonate formation catalyst, an organic liquid, and an aqueous phase containing an alkali metal or an alkaline earth metal base.
Bibliography:Application Number: EP19890121626