Use of n-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems

US5009814A · kind A · utility

Assignee

• Huls Aktiengesellschaft · DE

Inventors

• Heike Kelkenberg · Gladbeck, DE
• Wulf Ruback · Dülmen, DE
• Klaus Engel · Recklinghausen, DE

Key dates

• Filing date: Oct 20, 1988
• Grant date: Apr 23, 1991
• Expiry date: Oct 20, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/003
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

N-polyhydroxyalkyl fatty acid amides are used as thickening agents for liquid aqueous surfactant systems. Compounds of formula ##STR1## where R.sub.1 is an alkyl group; R.sub.2 is hydrogen, an alkyl group, or an alkylene oxide group; and X is a polyhydroxyalkyl group, are used as thickeners. The thickeners are particularly useful in liquid surfactant systems which contain paraffinsulfonate.