Indanylidene compounds

US7208142B2 · kind B2 · utility

Assignee

• Symrise GmbH & Co. KG · DE

Inventors

• Oskar Koch · Oebisfelde, DE
• Erich Dilk · Holzminden, DE
• Roland Langner · Holzminden, DE
• William Johncock · Reinbek, DE

Key dates

• Filing date: Nov 8, 2001
• Grant date: Apr 24, 2007
• Expiry date: Nov 8, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/08
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Novel indanylidene compounds can be used as UV-A filters in cosmetic compositions for protecting skin and hair and for technical applications.