Organic phosphorus compounds possessing 3-hydroxyalkylphosphinic acid ester groups

US4250124A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Walter Dursch · Königstein, DE
• Fritz Linke · Königstein, DE
• Hans-Jerg Kleiner · Kronberg, DE

Key dates

• Filing date: Sep 24, 1979
• Grant date: Feb 10, 1981
• Expiry date: Sep 24, 1999

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M13/285
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Organic phosphorus compounds possessing 3-hydroxyalkylphosphinic acid ester groups of the formula ##STR1## wherein the individual symbols have the meaning given in the description. These compounds have been obtained by reaction of compounds containing one or more hydroxyl groups with a 2-substituted 2-oxo-oxa-phospholane. The products of the above formula are in particular suitable for use as flameproofing agents for textile material.