Multifunctional detergent base

US5885952A · kind A · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Rolf Kuratli · Basel, CH
• Claude Eckhardt · Riedisheim, FR
• Frank Bachmann · Glückstadt, DE
• Werner Schreiber · Basel, CH

Key dates

• Filing date: May 15, 1996
• Grant date: Mar 23, 1999
• Expiry date: May 15, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3788
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A detergent base which is obtainable from the reaction of an ethylenically unsaturated sulfonic acid or carboxylic acid or anhydride thereof with a nonionic surfactant of the formula EQU R.sub.1 --O-(alkylene-O).sub.n.sbsb.1 --R.sub.2 (1) in which PA1 R.sub.1 is C.sub.8 -C.sub.22 alkyl or C.sub.8 -C.sub.18 alkenyl; PA1 R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl, a cycloaliphatic radical having at least 6 C atoms or benzyl; and PA1 n.sub.1 is a number from 1 to 60; PA1 and if appropriate with sugar derivatives. The detergent base has a good calcium-dispersing power, is very stable to electrolytes and heat and has an excellent washing action and anti-redeposition properties. It is therefore suitable for the preparation of powder and liquid detergents.