Pyrazoline-3,5-dione-containing compositions for dyeing keratin fibres; their use in dyeing as couplers; dyeing process
OwnerLaurent Vidal, Gérard Malleinventors
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Abstract
The present invention relates to a composition for dyeing keratin fibres, in particular human hair, containing, in a medium which is suitable for dyeing: as coupler, at least one compound of formula: or one of the addition salts thereof with an acid, in which: R2 denotes, in particular, hydrogen, halogen, alkoxy, aryloxy, acetylamido, etc. R1 and R3, which are independent, denote, in, particular: hydrogen, alkyl, aryl, a heterocycle, etc. it being understood that when R2 and R1 simultaneously represent a hydrogen atom, then R1 is other than a hydrogen atom, a C1-C5 alkyl radical or a phenyl radical; and at least one oxidation base.
Claims34
A composition for dyeing keratin fibers comprising:
- (a) at least one coupler chosen from at least one pyrazoline-3,5-dione compound of formula (I) and acid addition salts thereof:
- wherein:
- R2 is chosen from a hydrogen atom;
- a halogen atom;
- an acetylamido radical;
- an alkoxy radical;
- an acyloxy radical;
- an aryloxy radical;
- an arylthio radical;
- an alkylthio radical;
- a heteroarylthio radical;
- a heteroaryloxy radical;
- a thiocyano radical;
- an N,N-diethylthiocarbonylthio radical;
- a dodecyloxythiocarbonylthio radical;
- a benzenesulphonamido radical;
- an N-ethyltoluenesulphonamido radical;
- a pentafluorobutanamido radical;
- a 2,3,4,5,6-pentafluorobenzamido radical;
- a p-cyanophenylureido radical, an N,N-diethylsulphamoylamino radical;
- a pyrazolyl radical;
- an imidazolyl radical;
- a triazolyl radical;
- a tetrazolyl radical;
- a benzimidazolyl radical;
- a 1-benzyl-5-ethoxy-3-hydantoinyl radical;
- a 1-benzyl-3-hydantoinyl radical;
- 5,5-dimethyl-2,4-dioxo-3-oxazolidinyl;
- a 2-oxy-1,2-dihydro-1-pyridyl radical;
- an alkylamido radical;
- an arylamido radical;
- a radical NRIIIRIV, wherein RIII and RIV, which may be identical or different, are each chosen from a C1-C4 alkyl radical, a hydroxyalkyl radical;
- a carboxyl radical;
- and an alkoxycarboxyl radical;
- wherein all of said radicals are substituted or unsubstituted;
- R1 and R3, which may be identical or different, are each chosen from a hydrogen atom;
- a C1-C5 alkyl radical;
- a C2-C4 mono- or polyhydroxyalkyl radical;
- a C2-C4 aminoalkyl radical;
- a phenyl radical;
- a phenyl radical substituted with a halogen atom or a C1-C4 alkyl radical, a C1-C4 alkoxy radical, a nitro radical, a trifluoromethyl radical, an amino radical, or a C1-C4 alkylamino radical;
- a benzyl radical;
- a benzyl radical substituted with a halogen atom, a C1-C4 alkyl radical, a C1-C4 alkoxy radical, a methylenedioxy radical, or amino radical;
- and a radical
- wherein m and n, which may be identical or different, are each chosen from integers ranging from 1 to 3, X is chosen from an oxygen atom and an NH group, Y is chosen from a hydrogen atom and a methyl radical, and Z is chosen from a methyl radical;
- a group OR or NRR′, wherein R and R′, which may be identical or different, are each chosen from a hydrogen atom, a methyl radical and an ethyl radical;
- an amino radical;
- a C1-C4 alkylamino radical;
- a carboxyl radical;
- an alkoxycarbonyl radical;
- an aryloxycarbonyl radical;
- a 5- or 6-membered heterocycle with at least one nitrogen, sulphur or oxygen atom;
- an acyl radical;
- a sulphonyl group;
- and a phosphonyl group;
- wherein when R2 and R3 simultaneously represent a hydrogen atom, then R1 is other than a hydrogen atom, a C1-C5 alkyl radical or a phenyl radical;
- and
- (b) at least one oxidation base chosen from para-phenylenediamines bis(phenyl)alkylenediamines para-aminophenols, ortho-aminophenols, heterocyclic bases, and acid addition salts thereof, wherein said para-phenylenediamines are chosen from compounds of formula (II):
- wherein:
- R5 is chosen from a hydrogen atom, a C1-C4 alkyl radical, a C1-C4 monohydroxyalkyl radical, a C2-C4 polyhydroxyalkyl radical and a (C1-C4 )alkoxy(C1-C4 )alkyl radical,
- R6 is chosen from a hydrogen atom, a C1-C4 alkyl radical, a C1-C4 monohydroxyalkyl radical and a C2-C4 polyhydroxyalkyl radical,
- R7 is chosen from a hydrogen atom, a halogen atom, a C1-C4 alkyl radical, a sulpha radical, a carboxyl radical, a C1-C4 monohydroxyalkyl radical and a C1-C4 hydroxyalkoxy radical, and
- R8 is chosen from a hydrogen atom and a C1-C4 alkyl radical,
- wherein when one of R5 and R6 is ethyl, the other one of R5 and R6 is not hydroxyethyl, and
- further wherein said at least one coupler and said at least one oxidation base are present in said composition in an amount effective for dyeing keratin fibers, and
- (c) a medium suitable for dyeing keratin fibers.
A composition according to claim 15, wherein said at least one pyrazoline-3,5-dione compound of formula (I) is present in an amount ranging from 0.0005 to 12% by weight relative to the total weight of said composition.
Dependencies are inferred from the claim text.