Preparation of polytetramethylene ether glycol using an acidic z

Details Preparation of polytetramethylene ether glycol using an acidic z Preparation of polytetramethylene ether glycol using an acidic z

1991-02-26

1992-09-22

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

568617, C07C 6724, C07C 6916, C07C 4101, C07C 4313

Patent

active

051498626

ABSTRACT:
A process for polymerizing tetrahydrofuran to produce polytetramethylene ether glycol or ester-capped polytetramethylene ether glycol is disclosed. The reaction mass is carried out at 10.degree. to 80.degree. C. and preferably 20.degree. to 60.degree. C. In a preferred aspect of the invention, a mixture of acetic anhydride and acetic acid is present in the reaction mixture.

REFERENCES:
patent: 4259531 (1981-03-01), Huchler et al.
patent: 4727199 (1988-02-01), King

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