Preparation of esters of poly-(tetramethylene ether) glycol

Details Preparation of esters of poly-(tetramethylene ether) glycol Preparation of esters of poly-(tetramethylene ether) glycol

1978-01-13

1979-07-31

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

2604106, 560 1, 560 8, 560112, 560129, 560209, 560227, 568617, C07C 6724

Patent

active

041631153

ABSTRACT:
Esters of poly(tetramethylene ether) glycol are prepared by polymerizing tetrahydrofuran in a reaction mixture which contains, in addition to the tetrahydrofuran, and acylium ion precursor such as acetic anhydride, a polymeric catalyst which contains sulfonic acid groups and, optionally, a carboxylic acid such as acetic acid.

REFERENCES:
patent: 2691038 (1954-10-01), Engelhardt
patent: 3433829 (1969-03-01), Dorfelt

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