Process for preparing improved poly(tetramethylene ether) glycol

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

1984-12-21

1986-04-22

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4118

Patent

active

045844143

ABSTRACT:
In the process of converting a poly(tetramethylene ether) diester to poly(tetramethylene ether) glycol by catalytic alcoholysis, using an alkali metal hydroxide or alkoxide as the catalyst, 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.

REFERENCES:
patent: 4230892 (1980-10-01), Pruckmayr
patent: 4460796 (1984-07-01), Mueller

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