Color stabilized nonionic surfactants

US4412933A · kind A · utility

Assignee

• BASF SE

Inventors

• Erhard Klahr · Ludwigshafen, DE
• Wolfgang Trieselt · Ludwigshafen, DE
• Wolf-Dieter Balzer · Ludwigshafen, DE
• Rainer Strickler · Heidelberg, DE
• Dieter Stoeckigt · Ludwigshafen, DE

Key dates

• Filing date: Apr 17, 1981
• Grant date: Nov 1, 1983
• Expiry date: Apr 17, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/92
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Color-stabilized nonionic surfactants which contain chemically bonded polyalkylene oxide groups having terminal hydroxyl groups, and in which are dissolved C.sub.4 -C.sub.8 -aliphatic dicarboxylic acids, their C.sub.1 -C.sub.4 -alkyl esters or mixtures thereof, as color stabilizers.