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

C - Chemistry, Metallurgy

07

C

260/491.6

C07C 69/16 (2006.01)

Patent

CA 1094100

E.I. du Pont de Nemours and Company (Heinsohn, G.E.; Robinson, I.M.; Pruckmayr, G. & Gilbert, W.W.) ABSTRACT Esters of poly(tetramethylene ether) glycol are prepared by polymerizing tetrahydrofuran in a reaction mix- ture which contains, in addition to the tetrahydrofuran, an acylium ion precursor such as acetic anhydride, a polymeric catalyst which contains sulfonic acid groups and optionally, a carboxylic acid such as acetic acid.

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