Patent EP1374842B1 successfully refreshed from Google Patents.
EP1374842B1
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EP
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Composition for the oxidative dyeing of human keratin fibres
Assignee: L'Oréal SA
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Filing: 2003-06-23
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Granted: 2008-05-14
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Expires: 2023-06-23
Abstract
Abstract Water-based composition for oxidation dyeing of human keratinic fibers comprises an oxidation dye and an alkalizing agent comprising an alkali(ne earth) metal or ammonium metasilicate and an alkanolamine. An Independent claim is also included for dyeing human keratinic fibers by mixing the dye composition with an oxidizing composition comprising hydrogen peroxide (H2O2), an H2O2-releasing compound or an oxidoreductase enzyme, applying the mixture to the fibers, leaving the fibers for 3-50 minutes, rinsing, shampooing, rinsing and drying.
Inventors
- 👤 Francois Cottard
- 👤 Christine Rondeau
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 07:46
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415; A61K8/19; A61K8/22; A61K8/25; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
68 words
Composition for the oxidation dyeing of human keratinous fibres and more particularly hair, comprising, in a cosmetically acceptable medium based on water, and at a basic pH, at least one oxidation dye and an alkalinizing agent, characterized in that the alkalinizing agent is a combination of at least one metasilicate chosen from the group consisting of alkali metal, alkaline-earth metal or ammonium metasilicates and at least one alkanolamine.
Claim 2
Dependent Claim
14 words
Composition according to Claim 1, characterized in that the metasilicate is a sodium metasilicate.
Claim 3
Dependent Claim
32 words
Composition according to either of the preceding claims, characterized in that the alkanolamines are chosen from the group consisting of monoethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol and trishydroxymethylaminomethane.
Claim 4
Dependent Claim
12 words
Composition according to Claim 3, characterized in that the alkanolamine is monoethanolamine.
Claim 5
Dependent Claim
35 words
Composition according to any one of the preceding claims, characterized in that the alkalinizing agent comprises, as active substance, from 0.1 to 6% by weight of metasilicate relative to the total weight of the composition.
Claim 6
Dependent Claim
31 words
Composition according to Claim 5, characterized in that the alkalinizing agent comprises, as active substance, from 0.5 to 5% by weight of metasilicate relative to the total weight of the composition.
Claim 7
Dependent Claim
31 words
Composition according to Claim 6, characterized in that the alkalinizing agent comprises, as active substance, from 1 to 3% by weight of metasilicate relative to the total weight of the composition.
Claim 8
Dependent Claim
35 words
Composition according to any one of the preceding claims, characterized in that the alkalinizing agent comprises, as active substance, from 0.1 to 8% by weight of alkanolamine relative to the total weight of the composition.
Claim 9
Dependent Claim
31 words
Composition according to Claim 8, characterized in that the alkalinizing agent comprises, as active substance, from 0.5 to 6% by weight of alkanolamine relative to the total weight of the composition.
Claim 10
Dependent Claim
31 words
Composition according to Claim 9, characterized in that the alkalinizing agent comprises, as active substance, from 1 to 5.5% by weight of alkanolamine relative to the total weight of the composition.
Claim 11
Dependent Claim
19 words
Composition according to any one of the preceding claims, characterized in that its pH is from 7.2 to 13.
Claim 12
Dependent Claim
15 words
Composition according to Claim 11, characterized in that its pH is from 8.5 to 11.5.
Claim 13
Dependent Claim
24 words
Composition according to any one of the preceding claims, characterized in that the oxidation dye or dyes are chosen from oxidation bases and couplers.
Claim 14
Dependent Claim
15 words
Composition according to Claim 13, characterized in that it comprises at least one oxidation base.
Claim 15
Dependent Claim
35 words
Composition according to Claim 14, characterized in that the oxidation bases are chosen from the group consisting of ortho- and para-phenylenediamines, double bases, ortho- and para-aminophenols, heterocyclic bases and their addition salts with an acid.
Claim 16
Dependent Claim
47 words
Composition according to Claim 13, characterized in that the couplers are chosen from the group consisting of meta-aminophenols, meta-phenylenediamines, meta-diphenols, naphthols, indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolones, indazoles, benzimidazoles, benzothiazoles, benzoxazoles, 1,3-benzodioxoles, quinolines and their addition salts with an acid.
Claim 17
Dependent Claim
36 words
Composition according to any one of Claims 13 to 16, characterized in that the addition salts with an acid of the oxidation bases and couplers are chosen from the hydrochlorides, hydrobromides, sulphates, tartrates, lactates and acetates.
Claim 18
Dependent Claim
38 words
Composition according to any one of Claims 13-15 and 17, characterized in that the oxidation base or bases are present at a concentration ranging from 0.0005 to 12% by weight relative to the total weight of the composition.
Claim 19
Dependent Claim
37 words
Composition according to any one of Claims 13, 16 and 17, characterized in that the coupler or couplers are present at a concentration between 0.0001 and 10% by weight relative to the total weight of the composition.
Claim 20
Dependent Claim
25 words
Composition according to any one of the preceding claims, characterized in that the cosmetically acceptable medium based on water comprises at least one organic solvent.
Claim 21
Dependent Claim
32 words
Composition according to Claim 20, characterized in that the organic solvent or solvents are present in proportions ranging from 1 to 40% by weight relative to the total weight of the composition.
Claim 22
Dependent Claim
51 words
Composition according to any one of the preceding claims, characterized in that it contains at least one cationic polymer in the proportion of 0.05 to 10% by weight and at least one nonionic surfactant in the proportion of 0.1 to 20% by weight relative to the total weight of the composition.
Claim 23
Dependent Claim
37 words
Ready-to-use composition for the oxidation dyeing of human keratinous fibres and in particular hair, characterized in that it comprises the mixture of a composition defined in any one of Claims 1 to 22 and an oxidizing composition.
Claim 24
Dependent Claim
14 words
Composition according to Claim 23, characterized in that the oxidizing composition comprises hydrogen peroxide.
Claim 25
Dependent Claim
97 words
Method for dyeing human keratinous fibres and in particular hair, characterized in that , at the time of use, a dyeing composition as described in any one of Claims 1 to 22 is mixed with an oxidizing composition, in that the mixture obtained is applied to the fibres, it is allowed to act for 3 to 50 minutes, preferably 5 to 30 minutes, after which the fibres are rinsed, washed with shampoo, rinsed again and dried, the said oxidizing composition comprising hydrogen peroxide or a compound capable of releasing hydrogen peroxide in situ, or an oxidoreduction enzyme.
References Cited (Backward Citations)
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