Emulsifier composition based on pentaerythritol esters and alkoxylated nonionic emulsifiers

US7887825B2 · kind B2 · utility

Assignee

• Cognis IP Management GmbH · DE

Inventors

• Catherine Weichold · Aachen, DE
• Helga Gondek · Goldkronach, DE
• Ulrich Issberner · Rommerskirchen, DE
• Rolf Kawa · Monheim, DE
• Caroline Goget · Summit, US

Key dates

• Filing date: Mar 2, 2006
• Grant date: Feb 15, 2011
• Expiry date: Oct 15, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An emulsifier composition including an ester selected from the group consisting of: pentaerythritol, dipentaerythritol, tripentaerythritol, and mixtures thereof; at least one alkoxylated nonionic emulsifier; and less than 10% by weight water, where partial glycerides may be present in an amount of less than 10% by weight, based on the amount of component (a) present in the composition, is provided. A process for the production of an emulsion, including dispersing the emulsifier composition in an oil phase; heating the emulsifier composition dispersed in the oil phase to a temperature above the phase inversion temperature thereof; heating an aqueous phase to a temperature above the phase inversion temperature thereof; and stirring the oil phase with the aqueous phase and cooling to room temperature is also provided. A cosmetic composition including the emulsifier composition is also provided.