Fatty acid esters, processes for their production and for incorporation into cosmetic and/or pharmaceutical formulations

US8183298B2 · kind B2 · utility

Assignee

• Cognis IP Management GmbH · DE

Inventors

• Ulrich Issberner · Rommerskirchen, DE
• Catherine Weichold · Aachen, DE
• Achim Ansmann · Erkrath, DE
• Stefan Bruening · Goldkronach, DE
• Helga Gondek · Goldkronach, DE

Key dates

• Filing date: Mar 26, 2005
• Grant date: May 22, 2012
• Expiry date: Sep 14, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11C3/003
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A fatty acid ester of pentaerythritol, a pentaerythritol oligomer, or mixtures thereof, where the fatty acid has 6 to 22 carbon atoms, and the ester contains less than 0.3% by weight C17 fatty acid acyl groups and has a melting point of at least 30° C. is provided. A process for the production of a C16/C18 fatty acid pentaerythritol ester including (A) providing about 1.8 to about 2.2 mol of a fatty acid mixture per mol of pentaerythritol; (B) esterifying component (A) at temperatures ranging from about 180° C. to about 250° C. in an inert gas atmosphere in the absence of solvent to form a reaction mixture; (C) stirring the reaction mixture in vacuo until it has an acid value of less than 1 and an OH value of 145 to 158 is provided. A cosmetic and/or pharmaceutical composition including the above-described ester is also provided.