Anionic azo dyestuffs for coloring keratin-containing fibers

US8864849B1 · kind B1 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Wibke Gross · Mülheim an der Ruhr, DE
• Ralph Nemitz · Frechen, DE
• Melanie Moch · Dormagen, DE
• Astrid Kroos · Monheim, DE
• Antje Gebert · Goldkronach, DE

Key dates

• Filing date: May 6, 2014
• Grant date: Oct 21, 2014
• Expiry date: May 6, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/4322
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present specification provides for an agent for coloring keratinic fibers. The agent includes, a cosmetic carrier, a compound of formula (I),R1 and R2 independently of one another denote hydrogen, a C1-C6 alkyl group, a C2-C6 alkenyl group, a hydroxyl group, a halogen, a C1-C6 alkoxy group, an amino group, a nitro group, an acetyl amino group, or a sulfonamide group; or when in ortho-position to one another, form a 5- or 6-membered, saturated or unsaturated ring, which optionally include further heteroatoms.