Stable light protection preparations containing surface-active glucose derivatives and water-soluble UV filters

US5849274A · kind A · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Heinrich Gers-Barlag · Kummerfeld, DE
• Anja Müller · Bad Oldesloe, DE

Key dates

• Filing date: Jul 29, 1997
• Grant date: Dec 15, 1998
• Expiry date: Jul 29, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Cosmetic or pharmaceutical O/W emulsions which contain PA1 (a) one or more surface-active substances selected from the group consisting of glucose derivatives of the structural formula ##STR1## in which R is a branched or unbranched alkyl radical having 1 to 24 carbon atoms, R.sub.1 is either a hydrogen atom or a branched or unbranched alkyl radical having 1 to 24 carbon atoms and R.sub.2 is either a hydrogen atom or a branched or unbranched acyl radical having 1 to 24 carbon atoms, PA1 (b) one or more water-soluble, cosmetically or pharmaceutically acceptable UV filters, PA1 (c) an aqueous phase which may contain conventional substances soluble and/or dispersible therein, including especially other cosmetically or pharmaceutically acceptable UV filters, and PA1 (d) an oil phase which may contain conventional substances soluble and/or dispersible therein, including especially other cosmetically or pharmaceutically acceptable UV filters, and which are PA1 (e) essentially free of polyethoxylated emulsifiers.