Improved process for the copolymerization of alkylene oxides...

Details Improved process for the copolymerization of alkylene oxides... Improved process for the copolymerization of alkylene oxides...

C - Chemistry, Metallurgy

08

G

C08G 64/34 (2006.01) C08G 64/18 (2006.01) C08G 65/28 (2006.01)

Patent

CA 2418435

A method of forming a polyethercarbonate polyol using a multimetal cyanide compound is disclosed. The method includes providing a multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the weight of the multimetal cyanide compound and further including at least two of the following components: an organic complexing agent, water, a polyether, and a surface-active substance. Then an alcohol initiator is reacted with at least one alkylene oxide and carbon dioxide under a positive pressure in the presence of the multimetal cyanide compound, thereby forming the polyethercarbonate polyol.

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