Cosmetic and dermatological light protection formulations in the form of O/W macroemulsions, O/W microemulsions or O/W/O emulsions

US5876702A · kind A · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Heinrich Gers-Barlag · Kummerfeld, DE
• Rainer Kropke · Schenefeld, DE

Key dates

• Filing date: Dec 11, 1996
• Grant date: Mar 2, 1999
• Expiry date: Dec 11, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/34
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

O/W macroemulsions or O/W microemulsions or O/W/O emulsions having a content of dissolved UV filter substances which are sparingly soluble per se in oil components, in particular 4,4',4"-(1,3,5-triazine-2,4,6-triyltriimino) tris-benzoic acid tris (2-ethylhexyl ester), obtainable by phase inversion technology.