Hair coloring compositions and their use
AssigneeThe Procter & Gamble Company
InventorsJames Charles Dunbar, Delyth Angharad James
Life of this patent
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Abstract
The present invention provides a hair coloring composition comprising (iv) at least one developer selected from amino aromatic systems capable of being oxidised and thereafter undergoing only a single electrophilic attack reaction, and (v) at least one developer selected from amino aromatic systems capable of being oxidised and thereafter undergoing at least two electrophilic attack reactions, and (vi) at least one coupler, which delivers improved root-to-tip evenness and improved hair color.
Claims11
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 R1, R2 and R3 are, independently selected from, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, —R′NHCOR, —CONHR, —R′CONHR, —R′OH, —R′SO2R, —R′SO2NHR, —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.
A method of colouring hair comprising applying to the hair (i) at least one developer of 2,6-dihalo-para-aminophenol and optionally at least one or more developers selected from amino aromatic systems capable of being oxidised and thereafter undergoing only a single electrophilic attack reaction and (ii) at least one developer of para-phenylenediamine and optionally at least one or more developers capable of being oxidised 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 R1, R2 and R3 are, independently selected from, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, —R′NHCOR, —CONHR, —R′CONHR, —R′OH, —R′SO2R, —R′SO2NHR, —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.
A hair colouring kit comprising
- (a) an individually packaged colouring component comprising (i) at least one developer of 2,6-dihalo-aminophenol and optionally at least one or more developers selected from amino aromatic systems capable of being oxidised and thereafter undergoing only a single electrophilic attack reaction and (ii) at least one developer of para-phenylenediamine and optionally at least one or more developers selected from amino aromatic systems capable of being oxidised 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 of the formula;
- in which R1, R2 and R3 are, independently selected from, cycloalkyl, alkenyl, cycloalkenyl, aryl, alkaryl, aralkyl, —R′NHCOR, —CONHR, —R′CONHR, —R′OH, —R′SO2R, —R′SO2NHR, —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, and
- (b) an individually packaged oxidising component.
Dependencies are inferred from the claim text.