Finely dispersed carotenoid and retinoid suspension and their preparation

US5895659A · kind A · utility

Assignee

• BASF SE

Inventors

• Erik Luddecke · Mutterstadt, DE
• Loni Schweikert · Kaiseraugst, CH

Key dates

• Filing date: Mar 10, 1997
• Grant date: Apr 20, 1999
• Expiry date: Mar 10, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K47/24
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Finely dispersed carotenoid or retinoid suspensions are prepared by dissolving the carotenoid or retinoid in a volatile, water-miscible organic solvent at 50.degree. C.-250.degree. C., where appropriate under elevated pressure, within less than 10 sec and immediately thereafter mixing the solution with an aqueous medium at from 0 to 90.degree. C., wherein the mixing with the aqueous medium takes place in the absence of a protective colloid and in the presence of at least one physiologically tolerated emulsifier.