Urethanes made from aliphatic fluoro alcohols, isocyanates and carboxylic acids, a process for their preparation and their use

US5171877A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wolfgang Knaup · Altötting, DE
• Rainer Kupfer · Hattersheim, DE
• Rolf Kleber · Neu-Isenburg, DE
• Lothar Jaeckel · Flörsheim, DE
• Fritz J. Gohlke · Burgkirchen an der Alz, DE

Key dates

• Filing date: Dec 26, 1990
• Grant date: Dec 15, 1992
• Expiry date: Dec 26, 2010

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M15/576
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The urethanes described are synthesized from aliphatic fluoro alcohols, triisocyanate and a carboxylic acid. They are prepared by reaction of the aliphatic fluoro alcohol with the triisocyanate to give the fluoro alcohol/triisocyanate adduct and by reaction of this adduct with the carboxylic acid. The new urethanes are preferably used for the finishing of textiles for the purpose of achieving water, oil and soil repellency.