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...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | English French German |
Published |
27.06.1990
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
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 |