Processes for preparing ethylene oxide-capped polyols

Details Processes for preparing ethylene oxide-capped polyols Processes for preparing ethylene oxide-capped polyols

C - Chemistry, Metallurgy

08

G

C08G 65/10 (2006.01)

Patent

CA 2443117

The present invention is directed to a process for preparing ethylene oxide-capped polyols which involves combining a double-metal cyanide-catalyzed polyol with a basic catalyst. The present invention is also directed to a process for preparing ethylene oxide-capped polyols which involves combining a double-metal cyanide-catalyzed polyol with a base-catalyzed polyol. The present invention is also directed to a process for preparing ethylene oxide-capped polyols in which removal of catalyst residues or salts formed by the neutralization of the basic catalyst is not required. The polyols produced by the processes of the present invention have a relatively high content of primary hydroxyl groups.

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