Free-flowing water-containing alkyl sulfate pastes

US5538672A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Rainer Hofmann · Goldkronach, DE
• Bert Gruber · Goldkronach, DE
• Andreas Syldath · Goldkronach, DE
• Ditmar Kischkel · Monheim, DE

Key dates

• Filing date: May 24, 1995
• Grant date: Jul 23, 1996
• Expiry date: May 24, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/03
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Water-containing, free-flowing and pumpable alkyl sulfate pastes having a viscosity, as measured at a shear rate of 10 s.sup.-1, of 5 Pa.s to 100 Pa.s and preferably 5 Pa.s to 50 Pa.s at temperatures of 50.degree. to 90.degree. C. which contain an alkyl sulfate corresponding to formula I: EQU R.sup.1 --O--SO.sub.3 M.sup.1 (I) in which R.sup.1 is a linear or branched C.sub.12-22 alkyl radical and M.sup.1 is an alkali metal, ammonium, alkyl ammonium or hydroxyalkyl ammonium ion; an alkenyl sulfate corresponding to formula II: EQU R.sup.2 --O--SO.sub.3 M.sup.2 (II) in which R.sup.2 is an alkenyl radical containing 16 to 22 carbon atoms and 1, 2 or 3 double bonds and M.sup.2 is an alkali metal, ammonium, alkyl ammonium or hydroxyalkyl ammonium ion; and a process for their preparation.