Hair dye composition
AssigneesKao Corporation, FUJIFILM Corporation
InventorsMasakazu Yamaguchi, Dominic Pratt, Yasuhiro Ishiwata
Life of this patent
Estimating the term…
Abstract
A hair dye composition containing an azo dye (1) or a salt thereof, (wherein R1 to R4 represents H, aliphatic hydrocarbon group, aryl group, halogen atom, acyl group, cyano group, acylamino group, or the like, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered ring; X represents C or N, with the proviso that when X represents C, n stands for 1, and when X represents N, n stands for 0; A1, A2, A3 and A4 each represents N or represents C substituted by Y or having H, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom; and Y represents a substituent with the proviso that m stands for an integer from 0 to 3).
Claims13
A hair dye composition comprising (1) an azo dye represented by the following formula (1):
- (wherein R1, R2, R3, and R4 each independently represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a halogen atom, an acyl group, a cyano group, an acylamino group, an aliphatic oxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an arylsulfonyl group, a sulfamoyl group, an aliphatic oxycarbonylamino group, an aryloxycarbonylamino group, a sulfo group, a carboxy group, a carbamoylamino group, a sulfamoylamino group or an aliphatic or aromatic sulfonylamino group, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered aromatic or non-aromatic ring;
- X represents a carbon atom or a nitrogen atom with the proviso that when X represents a carbon atom, n stands for 1, and when X represents a nitrogen atom, n stands for 0;
- A1, A2, A3 and A4 each independently represents a nitrogen atom or represents a carbon atom substituted by Y or having a hydrogen atom, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom;
- and Y represents a substituent with the proviso that m stands for an integer from 0 to 3), or a salt thereof, and (2) an oxidizing agent.
A hair dyeing method comprising applying a hair dye composition to the hair, wherein the hair dye composition comprises an azo dye represented by the following formula (1):
- wherein R1, R2, R3, and R4 each independently represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a halogen atom, an acyl group, a cyano group, an acylamino group, an aliphatic oxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an arylsulfonyl group, a sulfamoyl group, an aliphatic oxycarbonylamino group, an aryloxycarbonylamino group, a sulfo group, a carboxy group, a carbamoylamino group, a sulfamoylamino group or an aliphatic or aromatic sulfonylamino group, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered aromatic or non-aromatic ring;
- X represents a carbon atom or a nitrogen atom with the proviso that when X represents a carbon atom, n stands for 1, and when X represents a nitrogen atom, n stands for 0;
- A1, A2, A3 and A4 each independently represents a nitrogen atom or represents a carbon atom substituted by Y or having a hydrogen atom, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom;
- and Y represents a substituent with the proviso that m stands for an integer from 0 to 3), or a salt thereof.
A hair dye composition comprising an azo dye represented by the following formula (2):
- (wherein R1, R3, and R4 each independently represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a halogen atom, an acyl group, a cyano group, an acylamino group, an aliphatic oxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an arylsulfonyl group, a sulfamoyl group, an aliphatic oxycarbonylamino group, an aryloxycarbonylamino group, a sulfo group, a carboxy group, a carbamoylamino group, a sulfamoylamino group or an aliphatic or aromatic sulfonylamino group, wherein R3 and R4 may be coupled to form a 5- or 6-membered aromatic or non-aromatic ring;
- A1, A2, A3 and A4 each independently represents a nitrogen atom or represents a carbon atom substituted by Y or having a hydrogen atom, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom;
- and Y represents a substituent with the proviso that m stands for an integer from 0 to 3), or a salt thereof.
A hair dye composition comprising an azo dye represented by the following formula (1):
- (wherein R1, R2, R3, and R4 each independently represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a halogen atom, an acyl group, a cyano group, an acylamino group, an aliphatic oxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, an arylsulfonyl group, a sulfamoyl group, an aliphatic oxycarbonylamino group, an aryloxycarbonylamino group, a sulfo group, a carboxy group, a carbamoylamino group, a sulfamoylamino group or an aliphatic or aromatic sulfonylamino group, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered aromatic or non-aromatic ring;
- X represents a carbon atom or a nitrogen atom with the proviso that when X represents a carbon atom, n stands for 1, and when X represents a nitrogen atom, n stands for 0;
- A1, A2, A3 and A4 each independently represents a nitrogen atom or represents a carbon atom substituted by Y or having a hydrogen atom, with the proviso that at least two of A1, A2, A3 and A4 are nitrogen atoms;
- and Y represents a substituent with the proviso that m stands for an integer from 0 to 2), or a salt thereof.
Dependencies are inferred from the claim text.