Patent · US Expired

Preparation of polyoxyalkylene glycol monoether of tert-butyl alcohol and product

US5714638A · kind A · utility

2Cited by

6References

2Claims

0Family size

Assignee

BASF SE

Inventors

Hans-Juergen Weyer · Mannheim, DE
Rolf Fischer · Heidelberg, DE
Gerhard Jeschek · Havelsee, DE
Herbert Mueller · Herznach, CH

Key dates

Filing date	Feb 1, 1995
Grant date	Feb 3, 1998
Priority date	—
Expiry date	Feb 1, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G65/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyoxyalkylene glycol monoethers of monohydric alcohols are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from the group consisting of the cyclic ethers and acetals is polymerized in the absence of water and in the presence of a monohydric alcohol and of an anhydrous heteropoly acid catalyst.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.