Polytetrahydrofuran derivatives having terminal aromatic groups

US5260484A · kind A · utility

Assignee

• BASF SE

Inventors

• Eckhard Hickmann · Schifferstadt, DE
• Ulrich Koehler · Heidelberg, DE
• Hardo Stegel · Speyer, DE

Key dates

• Filing date: Feb 24, 1992
• Grant date: Nov 9, 1993
• Expiry date: Feb 24, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/329
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polytetrahydrofuran derivatives of the general formula ##STR1## where n is from 2 to 70, X is the bridge member --NH-- or --O-- and R.sup.1 to R.sup.4 are each hydrogen or various radicals.