Use of mixtures of polyglycerol fatty esters as emulsifiers in cosmetic and pharmaceutical formulations

US5147644A · kind A · utility

Assignee

• BASF SE

Inventors

• Knut Oppenlaender · Ludwigshafen, DE
• Brigette Wegner · Speyer, DE
• Karl Stork · Eisenberg (Pfalz), DE
• Franz Frosch · Bad Dürkheim, DE
• Hans-Ulrich Wekel · Ellerstadt, DE

Key dates

• Filing date: Feb 22, 1991
• Grant date: Sep 15, 1992
• Expiry date: Feb 22, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S424/05
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Mixtures of polyglycerol fatty esters obtainable by partial esterification of a polyglycerol mixture consisting of PA0 from 0 to 5% by weight of monoglycerol, PA0 from 15 to 40% by weight of diglycerol, PA0 from 30 to 55% by weight of triglycerol, PA0 from 10 to 25% by weight of tetraglycerol, PA0 from 0 to 15% by weight of pentaglycerol, PA0 from 0 to 10% by weight of hexaglycerol and PA0 from 0 to 5% by weight of higher polyglycerols with one or more saturated fatty acids of 12 to 22 carbon atoms or one or more unsaturated fatty acids of 16 to 22 carbon atoms, where the unsaturated fatty acid or fatty acid mixture used may furthermore contain up to 10% by weight of saturated fatty acids of 16 to 22 carbon atoms and the degree of esterification of the saturated or unsaturated fatty acids in the mixture is from 20 to 70%, are used as emulsifiers in cosmetic and pharmaceutical formulations.