Indanylidene compounds, a process for their preparation and their use as UV absorbers

US5965066A · kind A · utility

Assignee

• Haarmann & Reimer Corporation · DE

Inventors

• Oskar Koch · Oebisfelde, DE
• Horst Surburg · Holzminden, DE
• Roland Langner · Holzminden, DE
• Horst Sommer · Musberg, DE

Key dates

• Filing date: Aug 1, 1997
• Grant date: Oct 12, 1999
• Expiry date: Aug 1, 2017

Classification

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

Abstract

Compounds of the formula I according to claim 1 are excellently suitable as UV absorbers for use in cosmetic products, in particular sunscreen compositions, daytime care products and hair care products. They are furthermore suitable for protection of products.