Gemini surfactant compositions

US6797687B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Ditmar Kischkel · Monheim, DE
• Hans-Christian Raths · Monheim, DE
• Manfred Weuthen · Langenfeld, DE
• Michael Elsner · Solingen, DE

Key dates

• Filing date: Aug 7, 2002
• Grant date: Sep 28, 2004
• Expiry date: Aug 7, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/75
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Mixtures comprising: (a) a gemini surfactant of the formula (I)R1—CHOH—CH2—[OCH2CH2]x—O—CH2—CHOH—R  (I)wherein each of R and R1 is a linear or branched alkyl and/or alkenyl group having from 4 to 22 carbon atoms and x is a number from about 5 to about 400; (b) polyethylene glycol are useful as components in laundry detergents, dishwashing detergents and cleaners and for improving the wetting behavior on various surfaces.