Bleaching agent comprising 2-acylpyridinium derivatives

US8034122B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Wibke Gross · Mülheim an der Ruhr, DE
• Denise Fuhr · Goldkronach, DE
• Ralph Nemitz · Frechen, DE

Key dates

• Filing date: Mar 8, 2011
• Grant date: Oct 11, 2011
• Expiry date: Mar 8, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/86
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Agent for lightening keratin fibers containing in a cosmetic carrier (1) at least one cationic 2-acylpyridinium derivative of formula (I),wherein R is a C1-C6 alkyl group, a C2-C6 alkenyl group, a C2-C6 hydroxyalkyl group, a C1-C6 alkoxy C2-C6 alkyl group, a carboxy C1-C6 alkyl group, an aryl C1-C6 alkyl group, a heteroaryl C1-C6 alkyl group, a mono- or di-(C1-C6 alkyl)amino C2-C6 alkyl group, a 3-oxobutyl group, a 2-oxopropyl group, an aryl group or a heteroaryl group, R′ is a C4-C4 alkyl group, a C2-C6 hydroxyalkyl group or a C1-C6 alkoxy C2-C6 alkyl group, and X− is a physiologically acceptable anion, (2) at least one alkyl ether sulfate, and (3) an oxidizing agent, especially hydrogen peroxide.