A process for producing polycarbonates and a coordination...

C - Chemistry – Metallurgy – 07 – F

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C07F 7/08 (2006.01) C07C 251/24 (2006.01) C07F 9/28 (2006.01) C08G 64/02 (2006.01) C08G 64/34 (2006.01)

Patent

CA 2685974

The complex of the present invention containing an onium salt and a central Lewis acidic metal has a high catalytic activity at a high temperature for the copolymerization of an epoxide and carbon dioxide to produce a high molecular weight polycarbonate.

L'invention concerne un complexe contenant un sel d'onium et un métal central à caractère acide de Lewis présentant une activité catalytique élevée à température élevée pour copolymériser un époxyde ou un dioxyde de carbone afin de produire un polycarbonate de poids moléculaire élevé.

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