Surface-active, saturated sulfophosphoric acid-(partial)-alkyl esters

US4956116A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Bernd Fabry · Korschenbroich, DE
• Hans-Herbert Friese · Monheim, DE
• Friedrich Pieper · Langenfeld, DE
• Guenter Uphues · Monheim, DE

Key dates

• Filing date: Jan 30, 1989
• Grant date: Sep 11, 1990
• Expiry date: Jan 30, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/338
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for preparing surface-active, saturated sulfophosphoric acid-(partial)-alkyl esters and their alkali metal, alkaline earth, ammonium and/or amine salts by the sulfonation of saturated phosphoric acid-(partial)-alkyl esters and then hydrolysis of the sulfonated phosphoric acid esters formed.