Patent ID: 7066967
Filing Date: 2006-06-27
Classification: A61K,A61Q

Abstract:
1. A hair coloring composition comprising: (i) at least one developer of 2,6-dihalo-para-aminophenol and optionally at least one developer selected from aromatic systems capable of being oxidized and thereafter undergoing only a single electrophilic attack reaction; (ii) at least one developer of para-phenylenediamine and optionally at least one developer selected from aromatic systems capable of being oxidized and thereafter undergoing at least two electrophilic attack reactions and (iii) at least one coupler of 3-acetamidophenol and optionally at least one coupler selected from the group consisting of diketone compounds, pyrazole compounds and the compounds of the following formula; in which R 1 , R 2 and R 3 are, independently selected from, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, —R′NHCOR, —CONHR, —R′CONHR, —R′OH, —R′SO 2 R, —R′SO 2 NHR, —R′OR or —COR, in any of which R is H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl or aralkyl and R′ is alkylene, alkenylene, cycloalkylene, cycloalkenylene, arylene, alkarylene or aralkylene, or substituted versions of any of these; or mixtures thereof.