Preparation of linear polycarbonates from cyclic oligomer...

Details Preparation of linear polycarbonates from cyclic oligomer... Preparation of linear polycarbonates from cyclic oligomer...

C - Chemistry, Metallurgy

08

G

402/173

C08G 64/30 (2006.01)

Patent

CA 1320785

RD-18328 PREPARATION OF LINEAR POLYCARBONATES FROM CYCLIC OLIGOMER COMPOSITIONS USING METAL CHELATE CATALYST Abstract Cyclic polycarbonate oligomers are converted to linear polycarbonates by the catalytic action of a chelate of a transition metal with a ketone, diester or keto ester such as acetylacetone. The metal chelates vary in catalytic action with the position of the metal in the Periodic Table

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