Process for making ethylene oxide-capped polyols from double...

Details Process for making ethylene oxide-capped polyols from double... Process for making ethylene oxide-capped polyols from double...

C - Chemistry, Metallurgy

08

G

C08G 65/331 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2177871

A process for making high-primary, low-unsaturation polyols is disclosed. A polyol made by double metal cyanide (DMC) catalysis is blended with a polyol made by basic catalysis, and the polyol blend is reacted with ethylene oxide to produce an ethylene oxide-capped polyol. The process overcomes problems of the conventional recatalysis approach to making EO-capped polyols from DMC-catalyzed polyols.

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