Compositions for dyeing keratin fibers containing para-aminophenols, dyeing process, and para -aminophenols
AssigneeL'oreal
InventorsJean Jacques Vandenbossche, Alain Lagrange
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Abstract
Compositions for the oxidation dyeing of keratin fibers, comprising, as oxidation base, at least one para-aminophenol, of formula (I) and/or at least one acid-addition salt thereof: in which: R1 represents a hydrogen atom, a linear or branched C1-C4 alkyl radical or a C1-C4 trifluoroalkyl radical, R2 and R3 independently represent a hydrogen atom, a C1-C4 alkyl radical or a C1-C4 monohydroxyalkyl radical, and X, Y and Z independently represent a carbon, nitrogen, oxygen or sulphur atom, wherein the bonds XY and YZ are single or double bonds; a dyeing process using these compositions, novel para-aminophenols and a process for their preparation.
Claims32
A composition for the oxidation dyeing of keratin fibers comprising, in a medium suitable for dyeing, at least one oxidation base chosen from:
- 4-amino-2,2-dimethyl-2,3-dihydrobenzofuran-7-ol,
- 7-aminobenzo[b]thiophen-4-ol,
- 7-amino-2,3-dimethylbenzofuran-4-ol,
- 4-amino-2,3-dimethylbenzofuran-7-ol,
- 7-amino-1-propyl-5-trifluoromethyl-1H-benzoimidazol-4-ol,
- 7-aminobenzo[b]isothiazol-4-ol,
- 7-amino-1H-benzotriazol-4-ol,
- 7-aminoindan-4-ol,
- 7-amino-5-methyl-2,1,3-benzothiadiazol-4-ol,
- 7-amino-2,1,3-benzothiadiazol-4-ol,
- 7-amino-1-(2-hydroxyethyl)-1H-indol-4-ol,
- and acid addition salts thereof.
A process for dyeing keratin fibers comprising
- applying to said keratin fibers a composition for the oxidation dyeing of keratin fibers comprising, in a medium suitable for dyeing, at least one oxidation base chosen from:
- 4-amino-2,2-dimethyl-2,3-dihydrobenzofuran-7-ol,
- 7-aminobenzo[b]thiophen-4-ol,
- 7-amino-2,3-dimethylbenzofuran-4-ol,
- 4-amino-2,3-dimethylbenzofuran-7-ol,
- 7-amino-1-propyl-5-trifluoromethyl-1H-benzoimidazol-4-ol,
- 7-aminobenzo[b]isothiazol-4-ol,
- 7-amino-1H-benzotriazol-4-ol,
- 7-aminoindan-4-ol,
- 7-amino-5-methyl-2,1,3-benzothiadiazol-4-ol,
- 7-amino-2,1,3-benzothiadiazol-4-ol,
- 7-amino-1-(2-hydroxyethyl)-1H-indol-4-ol,
- and acid addition salts thereof,
- developing the color at acidic, neutral or alkaline pH using at least one oxidizing agent,
- wherein said oxidizing agent is added to said composition at the time of application, or said oxidizing agent is present in an oxidizing composition applied simultaneously or sequentially in a separate manner.
A process for dyeing keratin fibers, comprising preparing a mixture of
- a composition for the oxidation dyeing of keratin fibers comprising, in a medium suitable for dyeing, at least one oxidation base selected from
- 4-amino-2,2-dimethyl-2,3-dihydrobenzofuran-7-ol,
- 7-aminobenzo[b]thiophen-4-ol,
- 7-amino-2,3-dimethylbenzofuran-4-ol,
- 4-amino-2,3-dimethylbenzofuran-7-ol,
- 7-amino-1-propyl-5-trifluoromethyl-1H-benzoimidazol-4-ol,
- 7-aminobenzo[b]isothiazol-4-ol,
- 7-amino-1H-benzotriazol-4-ol,
- 7-aminoindan-4-ol,
- 7-amino-5-methyl-2,1,3-benzothiadiazol-4-ol,
- 7-amino-2,1,3,benzothiadiazol-4-ol,
- 7-amino-1-(2-hydroxyethyl)-1H-indol-4-ol,
- and acid addition salts thereof, and
- an oxidizing composition containing, in a medium suitable for dyeing keratin fibers and in an amount sufficient to develop coloration, at least one oxidizing agent;
- applying said mixture to said keratin fibers;
- leaving said mixture on said keratin fibers for a time ranging from 3 to 50 minutes;
- rinsing said keratin fibers;
- washing said keratin fibers with shampoo;
- and
- rinsing and drying said keratin fibers.
A multi-compartment dyeing kit comprising a first compartment containing a composition comprising, in a medium suitable for dyeing, at least one oxidation base chosen from:
- 4-amino-2,2-dimethyl-2,3-dihydrobenzofuran-7-ol,
- 7-aminobenzo[b]thiophen-4-ol,
- 7-amino-2,3-dimethylbenzofuran-4-ol,
- 4-amino-2,3-dimethylbenzofuran-7-ol,
- 7-amino-1-propyl-5-trifluoromethyl-1H-benzoimidazol-4-ol,
- 7-aminobenzo[b]isothiazol-4-ol,
- 7-amino-1H-benzotriazol-4-ol,
- 7-aminoindan-4-ol,
- 7-amino-5-methyl-2,1,3-benzothiadiazol-4-ol,
- 7-amino-2,1,3-benzothiadiazol-4-ol,
- 7-amino-1-(2-hydroxyethyl)-1H-indol-4-ol,
- and acid addition salts thereof,
- and a second compartment containing an oxidizing composition.
4-Amino-2,2-dimethyl-2,3-dihydrobenzofuran-7-ol, or an acid-addition salt thereof.
Dependencies are inferred from the claim text.