Cosmetic and dermatological light protection formulations with a content of hydroxybenzophenones and alkylnaphthalates

US7204973B2 · kind B2 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Anja Göppel · Hamburg, DE
• Jens Schulz · Schenefeld, DE
• Volker Wendel · Seeheim-Jugenheim, DE

Key dates

• Filing date: Nov 2, 2002
• Grant date: Apr 17, 2007
• Expiry date: Nov 2, 2022

Classification

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

Abstract

The invention relates to light-protective cosmetic or dermatological preparations that contain (a) at least one hydroxy-benzophenone, and (b) at last one dialkyl naphthalate of the structural formula (I), wherein R1 and R2 are independently selected form the group of the branched and unbranched alkyl groups that have 6 to 24 carbon atoms. The invention further relates to the use of said formulations