Merocyanine derivatives for cosmetic use

US7504528B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Barbara Wagner · Charleston, US
• Thomas Ehlis · Glückstadt, DE
• Stefan Muller · Weil am Rhein, DE

Key dates

• Filing date: Dec 8, 2004
• Grant date: Mar 17, 2009
• Expiry date: Mar 10, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/16
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Described are merocyanine derivatives of formula (1a) or (1b) wherein n and o are integers from 2 to 4 and aminocyclohexenone intermediates. They are used in protecting human and animal hair and skin from UV radiation.