Emulsifier for highly liquid W/O emulsion based on partly crosslinked polyglycerol esters of polyhydroxystearic acid

US7851511B2 · kind B2 · utility

Assignee

• EVONIK GOLDSCHMIDT GMBH · DE

Inventors

• Petra Allef · Essen, DE
• Wolfgang Berkels · Bottrop, DE
• Thomas Dietz · Richmond, US
• Burghard Gruning · Essen, DE
• Peter Hameyer · Essen, DE

Key dates

• Filing date: Jul 22, 2004
• Grant date: Dec 14, 2010
• Expiry date: Jul 8, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/34
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to polyglycerol partial esters of polyhydroxystearic acid and polyfunctional carboxylic acids which are obtainable by esterification of a polyglycerol mixture with polyhydroxystearic acid where N=1 to 10, preferably 2 to 8, in particular 3 to 5 units and dimer fatty acids which have been obtained by catalytic dimerization of unsaturated fatty acids having 12 to 22 C atoms and have an average functionality of 2 to 3, and/or with aliphatic, linear or branched dicarboxylic acids having a chain length of 2 to 16 C atoms and additionally saturated or unsaturated, linear or branched fatty acids having 6 to 22 C atoms, preferably 12 to 18 C atoms, the degree of esterification of the polyglycerol mixture being between 20 and 75%, preferably 40 to 70%.