A process for the preparation of polyether polyols with a...

Details A process for the preparation of polyether polyols with a... A process for the preparation of polyether polyols with a...

C - Chemistry, Metallurgy

08

G

C08G 65/10 (2006.01) C08G 18/48 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2179513

Polyether polyols are prepared by reacting an alkylene oxide comprising propylene oxide with an initiator containing at least three active hydrogen atoms per molecule. The reaction is conducted in the presence of an alkoxylation catalyst which is barium, strontium and their oxides, hydroxides, hydrated hydroxides or monohydroxides salts, or mixtures thereof; and in the presence of from 1 to 10 weight percent, based on total weight of initiator, of a processing aid that is an organic monohydroxyl-or dihydroxyl-containing substance having a molecular weight of at least 30, or a mixture thereof. The processing aid enhances the ability to obtain polyether polyols having a reduced unsaturation content.

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