Method of manufacturing fungible polytetramethylene ether glycol

Details Method of manufacturing fungible polytetramethylene ether glycol Method of manufacturing fungible polytetramethylene ether glycol

1974-09-18

1976-01-27

Moatz, Harry I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260615P, C07D30734

Patent

active

039352528

ABSTRACT:
Disclosed herein is a method which provides substantially zero acid number polytetramethylene ether glycol thus making it possible to regard polytetramethylene ether glycol as a fungible commodity. The improvement is achieved by complete removal of a trace impurity, believed to be n-butyl aldehyde, from dry tetrahydrofuran, by contact with molecular sieves of a particular definition, prior to the polymerization of the tetrahydrofuran in the production of polytetramethylene ether glycol.

REFERENCES:
patent: 2818449 (1957-12-01), Christensen et al.
Aripov et al., Chem. Abstracts, Vol. 77, Item 52681 (1972).

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