Process for preparing a poly(1,4-butanediol-.omega.,.omega.'-bismercaptan)

US5231231A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Oct 30, 1989
• Grant date: Jul 27, 1993
• Expiry date: Oct 30, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/3348
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Poly(1,4-butanediol-.omega.,.omega.'-mercaptans) have the general formula EQU HS--(CH.sub.2).sub.4 --O--[(CH.sub.2).sub.4 --O].sub.n --(CH.sub.2).sub.4 --SH I where n is from 1 to 150.