Fatty alcohol (ether) sulfates with improved low-temperature behavior

US5847183A · kind A · utility

Assignee

• Henkel Limited

Inventors

• Wolfgang Schmidt · Frankfurt, DE
• Karl Schmid · Mettmann, DE
• Michael Neuss · Cologne, DE
• Birgit Middelhauve · Monheim, DE
• Juan C. Wuhrmann · Goldkronach, DE
• Dagmar Zaika · Mettmann, DE

Key dates

• Filing date: Nov 15, 1996
• Grant date: Dec 8, 1998
• Expiry date: Nov 15, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/29
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fatty alcohol (ether) sulfates which are obtained by co-sulfating mixtures of (a) C.sub.8-22 fatty alcohols and (b) C.sub.8-22 fatty alcohol ethoxylates containing an average of 1.9 to 3.9 ethylene oxide units in a ratio by weight of 20:80 to 80:20, and then neutralizing the mixtures thus co-sulfated with aqueous bases. The substances have distinctly improved low-temperature behavior in relation to ether sulfates with comparable degrees of ethoxylation, and are useful as components of surface-active compositions.