Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a benzene-1,3-diamine and derivatives thereof

US8444711B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Muill Lim · Chuncheon-si, KR
• Bryan Patrick Murphy · Loveland, US
• Margaret Popp · Sharonville, US
• Richard Matthew Charles Sutton · Cincinnati, US
• Guiru Zhang · Lebanon, US

Key dates

• Filing date: Feb 16, 2012
• Grant date: May 21, 2013
• Expiry date: Feb 16, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/4946
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A composition for the oxidative dyeing of keratin fibers, in particular human keratin fibers comprising (A) a 1-hexyl/heptyl-4,5-diaminopyrazole compound of the general formula (I), a physiologically compatible water-soluble salt thereof, or mixtures thereof, and; (B) a benzene-1,3-diamine compound of the general formula (II), a physiologically compatible water-soluble salt thereof or mixtures thereof, and (C) an oxidizing agent.wherein R1, R2, R3, R4, R5, R6, R7, R8 and R9 are as defined herein and a=1 or 2.