Process for the polymerization of epoxides

Details Process for the polymerization of epoxides Process for the polymerization of epoxides

C - Chemistry, Metallurgy

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402/268, 252/52.

C08G 65/10 (2006.01) B01J 27/26 (2006.01) B01J 31/18 (2006.01) B01J 31/26 (2006.01) C08G 18/48 (2006.01) C08G 65/26 (2006.01)

Patent

CA 1201423

A B S T R A C T IMPROVED PROCESS FOR THE POLYMERIZATION OF EPOXIDES Process for the polymerization of epoxides using as catalyst a double metal cyanide-type compound, characterized in that the process is carried out in the presence of at least (a) one or more salts composed of at least bivalent metal ions and metal-free anions, having a solubility in water of at least 1 g/100 ml at 25°C, and/or (b) one or more no-metal containing acids of which a 0.1 N solution in water at 25°C has a pH not exceeding 3.

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