Process for preparing improved poly(tetramethylene ether)...

Details Process for preparing improved poly(tetramethylene ether)... Process for preparing improved poly(tetramethylene ether)...

C - Chemistry, Metallurgy

07

C

260/634.3

C07C 43/11 (2006.01) C07C 41/26 (2006.01) C08G 65/20 (2006.01) C08G 65/30 (2006.01)

Patent

CA 1270857

7 ABSTRACT OF THE DISCLOSURE In the process of converting a poly- (tetramethylene ether) diester to poly(tetramethyl- ene ether) glycol by catalytic alcoholysis, using an alkali metal hydroxide or alkoxide as the cata- lyst, contamination of the polymer product can be reduced by reacting the catalyst with an acid after the alcoholysis reaction is complete, and then removing the reaction product from the reaction mass.

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