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US4185958A
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Compositions based on direct dyestuffs containing a 2,5-dihydroxyphenylcarboxylic acid or a salt thereof
Assignee: Individual
•
Filing: 1978-08-18
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Granted: 1980-01-29
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Expires: 1998-08-18
Abstract
Abstract A composition suitable for dyeing keratin fibres, especially human hair, is provided comprising a direct dyestuff and, as a levelling agent, a 2,5-dihydroxyphenylcarboxylic acid or a salt thereof.
Inventors
- 👤 Andree Bugaut
- 👤 Jean-Francois Grollier
- 👤 Jean-Jacques Vandenboosche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/194; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/365; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C07C; C07C45/00; C07C45/45; C07C45/46; C07C59/00; C07C59/40; C07C59/42; C07C59/52; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C65/00; C07C65/01; C07C65/03; C07C65/05; C07D307/00; C07D307/77; C07D307/78; C07D307/82; C07D307/83
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
96 words
A composition suitable for dyeing keratin fibres, comprising in an aqueous solution from about 0.005 to about 5% by weight of at least one direct dyestuff and from about 0.1 to about 10% by weight of an acid or salt of a compound having the formula: ##STR14## in which R 1 and R 2 are identical or different and denote hydrogen or a straight- or branched-chain alkyl group of 1 to 4 carbon atoms, X denotes hydrogen, an alkali metal, ammonium, or an alkanolamine radical, and n is 0 or an integer from 1 to 4.
Claim 2
Dependent Claim
96 words
A composition suitable for dyeing keratin fibres, comprising in an aqueous solution from about 0.005 to about 5% by weight of at least one direct dyestuff and from about 0.1 to about 10% by weight of an acid or salt of a compound having the formula: ##STR14## in which R 1 and R 2 are identical or different and denote hydrogen or a straight- or branched-chain alkyl group of 1 to 4 carbon atoms, X denotes hydrogen, an alkali metal, ammonium, or an alkanolamine radical, and n is 0 or an integer from 1 to 4.
Claim 3
Dependent Claim
31 words
A composition according to claim 1 in which R 1 or R 2 denotes a methyl, ethyl or propyl group and X denotes sodium, potassium, a monoethanolamine, diethanolamine or triethanolamine radical.
Claim 4
Dependent Claim
22 words
A composition according to claim 1 in which at least one of R 1 and R 2 denotes the said alkyl group.
Claim 5
Dependent Claim
30 words
A composition according to any one of claims 1 to 3, in which the said acid is selected from the group consisting of 3-(2',5'-dihydroxy-4'-methylphenyl)-propionic acid, 2-[(2',5'-dihydroxy-4'-methyl)phenyl]-acetic acid and 2-[(2',5'-dihydroxy-3',4'-dimethyl)phenyl]-acetic acid.
Claim 6
Dependent Claim
25 words
A composition according to claim 1 in which the said acid is selected from the group consisting of gentisic acid, homogentisic acid and 3-(2',5'-dihydroxyphenyl)propionic acid.
Claim 7
Dependent Claim
23 words
A composition according to claim 1 which contains 0.5 to 3% by weight of an acid or a salt thereof, of formula (I).
Claim 8
Dependent Claim
23 words
A composition according to claim 1 in which the direct dyestuff is a nitro benzene derivative, an azo dyestuff or an anthraquinone dyestuff.
Claim 9
Dependent Claim
16 words
A composition according to claim 1 which contains 0.01 to 3% by weight of direct dyestuff.
Claim 10
Dependent Claim
28 words
A composition according to claim 1 wherein the aqueous solution further contains an alcohol, glycol or glycol ether solvent, in an amount from 0.5 to 20% by weight.
Claim 11
Dependent Claim
16 words
A composition according to claim 9 which contains 2 to 10% by weight of said solvent.
Claim 12
Dependent Claim
26 words
A composition according to claim 1 which also comprises an anionic, cationic, non-ionic, or amphoteric surface-active agent, in an amount from 0.5 to 50% by weight.
Claim 13
Dependent Claim
17 words
A composition according to claim 11 which contains 1 to 20% by weight of said surface-active agent.
Claim 14
Dependent Claim
47 words
A composition according to claim 1 which also comprises a fatty amide at a concentration of 0.5 to 10% by weight, a higher fatty alcohol at a concentration of 0.5 to 10% by weight, and or a thickener at a concentration of 0.5 to 15% by weight.
Claim 15
Dependent Claim
27 words
A composition according to claim 1, which also comprises monoethanolamine, diethanolamine, triethanolamine, ammonia, ammonium carbonate, potassium carbonate or sodium carbonate, or sodium hydroxide as an alkalizing agent.
Claim 16
Dependent Claim
20 words
A composition according to claim 14 which also comprises phosphoric, hydrochloric, tartaric, acetic, lactic or citric acid as acidifying agent.
Claim 17
Dependent Claim
24 words
A composition according to claim 1 which also comprises an adjuvant selected from the group consisting of perfumes, preservatives, sequestering agents and mixtures thereof.
Claim 18
Dependent Claim
14 words
A composition according to claim 1 which has a pH of 5 to 10.
Claim 19
Dependent Claim
14 words
A composition according to claim 17 which has a pH of 6 to 9.5.
Claim 20
Dependent Claim
14 words
A composition according to claim 18 which has a pH of 7 to 9.
Claim 21
Dependent Claim
16 words
A composition according to claim 1 which is a thickened liquid, foaming liquid or aerosol foam.
Claim 22
Dependent Claim
44 words
Process for dyeing human hair which comprises applying an effective amount of a composition as defined in claim 1 to the hair after it has been freshly bleached, allowing it to act for 5 to 30 minutes and then rinsing and drying the hair.
Claim 23
Dependent Claim
21 words
A process according to claim 21, in which the hair has been freshly bleached with an ammoniacal solution of hydrogen peroxide.
Claim 24
Dependent Claim
20 words
A process according to claim 22, in which the ammoniacal solution also contains ammonium persulphate, sodium persulphate or potassium persulphate.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |