Cosmetic and dermatological light protection formulations with a content of benzotriazole derivatives and alkyl naphthalates

US6355230B2 · kind B2 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Heinrich Gers-Barlag · Kummerfeld, DE
• Volker Wendel · Seeheim-Jugenheim, DE
• Wiebke Grundt · Kürten, DE

Key dates

• Filing date: Feb 26, 2001
• Grant date: Mar 12, 2002
• Expiry date: Feb 26, 2021

Classification

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

Abstract

An active ingredient combination effective for light protection and composed of(a) one or more UV filter substances selected from the group of benzotriazole derivatives and(b) one or more dialkyl naphthalates having the structural formula in which R1 and R2 are, independently of one another, selected from the group of branched and unbranched alkyl groups having 6 to 24 carbon atoms.