Patent ID: 6755872
Filing Date: 2004-06-29
Classification: A61K,A61Q

Abstract:
A composition for coloring keratin-containing fibers comprising a mixture of, or a reaction product of, or both of:(A) at least one heteroaromatic aldehyde or ketone corresponding to formula I: wherein R1 is a hydrogen atom, a C1-4 alkyl group, or an aryl or heteroaryl group, wherein R2 is a C1-4 alkyl group, or an aryl, aralkyl or heteroaryl group, wherein R3, R4, R5 and R6, independently of one another, represent a hydrogen atom, a halogen atom, a C1-4 alkyl group, a C1-4 alkoxy group, a C1-4 hydroxyalkoxy group, a hydroxy group, a nitro group or an amino group in which the amino group may optionally be substituted by at least one C1-4 alkyl group, or C1-4 acyl group, or wherein at least two of R3, R4, R5 or R6 may form together a fused aromatic ring, or wherein at least one of R3, R4, R5 or R6 together with R1 or R2 may form a fused 5-, 6- or 7-membered ring in which the fused 5-, 6- or 7-membered ring may optionally have attached thereto another fused aromatic ring, wherein X is a direct bond, or a substituted or unsubstituted vinylene, phenylene or vinylenephenylene group, wherein Y is a sulfur atom, an oxygen atom, a CR7R8 group, an NR10 group, or a substituted or unsubstituted vinylene group in which R7, R8 and R10, independently of one another, represent a C1-4 alkyl group, and wherein Zâˆ’ is a halide, a C1-4 alkyl sulfate, an arene sulfate, a C1-4 alkanesulfonate, a C1-4 perfluoroalkane sulfonate, a perhalogenate, a sulfate, hydrogen sulfate, tetrafluoroborate, hexafluorophosphate or tetrachlorozincate; and (B) at least one heteroaromatic nitroamine corresponding to formula II: wherein AR represents pyridine, quinoline, isoquinoline, pyrimidine, indole, benzimidazole, benzothiazole, indazole, benzoxazole, quinoxaline, quinazoline, or cinnoline, and R11, R12, R13 and R14, independently of one another, represent a hydrogen atom, a halogen atom, a C1-4 alkyl group, a C1-4 alkoxy group, a C1-4 aminoalkyl group, a C1-4 hydroxyalkoxy group, a hydroxy group, a nitro group, a carboxy group, a C1-4 alkoxycarbonyl group, a sulfo group, a sulfamoyl group, an arylazo group or an amino group in which the amino group may optionally be substituted by a C1-4 alkyl group or a C1-4 hydroxyalkyl group.