Aqueous anionic surfactant solutions stable at low temperature comprising glycoside and alkoxylated nonionic surfactant mixtures and processes of making same

US5599787A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Karl Schmid · Mettmann, DE
• Brigitte Giesen · Goldkronach, DE
• Andreas Syldath · Goldkronach, DE

Key dates

• Filing date: Jun 19, 1995
• Grant date: Feb 4, 1997
• Expiry date: Jun 19, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/90
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Aqueous solutions of anionic surfactants having improved low-temperature stability are obtained by addition to the solutions of mixtures of nonionic surfactants containing a) alkyl and/or alkenyl oligoglycosides corresponding to formula (I) EQU R.sup.1 -O-[G].sub.p (I) in which R.sup.1 is an alkyl and/or alkenyl radical containing 6 to 22 carbon atoms, G is a sugar unit containing 5 or 6 carbon atoms and p is a number of 1 to 10, b) fatty alcohol polyglycol ethers corresponding to formula (II) ##STR1## in which R.sup.2 is an alkyl radical containing 8 to 11 carbon atoms, n is a number of 4 to 9 and m=0 or is a number of 1 to 3, and optionally c) fatty alcohol polyglycol ethers corresponding to formula (III) ##STR2## in which R.sup.3 is an alkyl radical containing 12 to 15 carbon atoms, n is an integer of 4 to 9 and m=0 or is a number of 1 to 3. The products are particularly suitable for the production of manual dishwashing detergents.