Agents used for dyeing keratinous fibers

US7105032B2 · kind B2 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

• Wibke Gross · Mülheim an der Ruhr, DE
• Sandra Mausberg · Erkrath, DE
• Horst Hoeffkes · Goldkronach, DE
• Doris Oberkobusch · Goldkronach, DE

Key dates

• Filing date: Mar 1, 2005
• Grant date: Sep 12, 2006
• Expiry date: Mar 1, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/4953
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A composition for dyeing keratin-containing fibers, particularly human hair, comprising 1,2-dihydropyrimidinium derivatives in combination with reactive carbonyl compounds and methods of employing this combination for dyeing keratin-containing fibers, for color restoration or shading keratin-containing fibers that are already dyed.