US4704474A
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1,4-diamino-5-chloro-2-nitrobenzene derivatives, processes for their production and compositions containing the same for the coloration of hair
Assignee: Procter and Gamble Deutschland GmbH
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Filing: 1986-02-26
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Granted: 1987-11-03
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Expires: 2006-02-26
Abstract
Abstract New 1,4-diamino-5-chloro-2-nitrobenzene derivatives are disclosed of the formula I ##STR1## Wherein R 1 and R 2 are the same or different and are each hydrogen, 2-hydroxyethyl or 2,3-dihydroxypropyl, with the proviso, that at least one of said R 1 and R 2 is 2,3-dihydroxypropyl, along with processes for their production, as well as hair coloring compositions containing the same and methods of coloring hair. The compounds are red- to violet-coloring direct dyes, and are readily soluble in water, with favorable toxicological characteristics.
Inventors
- 👤 Eugen Konrad
- 👤 Thomas Clausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/418; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C; C09; C09B; C09B51/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
41 words
1,4-diamino-5-chloro-2-nitrobenzene of the general formula I ##STR3## wherein R 1 and R 2 are the same or different and are each hydrogen, 2-hydroxyethyl or 2,3-dihydroxypropyl, with the proviso that at least one of said R 1 and R 2 is 2,3-dihydroxypropyl.
Claim 2
Dependent Claim
41 words
1,4-diamino-5-chloro-2-nitrobenzene of the general formula I ##STR3## wherein R 1 and R 2 are the same or different and are each hydrogen, 2-hydroxyethyl or 2,3-dihydroxypropyl, with the proviso that at least one of said R 1 and R 2 is 2,3-dihydroxypropyl.
Claim 3
Dependent Claim
7 words
The compound according to claim 1, 1-amino-4-(2',3'-dihydroxypropyl)amino-5-chloro-2-nitrobenzene.
Claim 4
Dependent Claim
7 words
The compound according to claim 1, 4-amino-1-(2',3'-dihydroxypropyl)-amino-5-chloro-2-nitrobenzene.
Claim 5
Dependent Claim
7 words
The compound according to claim 1, 1-(2'-hydroxyethyl)-amino-4-(2',3'-dihydroxypropyl)-amino-5-chloro-2-nitrobenzene.
Claim 6
Dependent Claim
7 words
The compound according to claim 1, 1,4-di-[(2',3'-dihydroxypropyl)-amino]-5-chloro-2-nitrobenzene.
Claim 7
Dependent Claim
22 words
Composition for the coloration of hair, comprising at least one compound according to claim 1 in mixture with cosmetic additive carrier means.
Claim 8
Dependent Claim
33 words
The composition according to claim 6 for the dyeing of hair without oxidation means, said compound according to formula I being present in a concentration between about 0.01 and 2.0 percent by weight.
Claim 9
Dependent Claim
33 words
The composition according to claim 6 for the dyeing of hair without oxidation means, wherein said compound of formula I is present in a concentration between about 0.01 and 1.0 percent by weight.
Claim 10
Dependent Claim
24 words
The composition according to claim 6, wherein a total content of dye lies within the limits between about 0.01 and 3.0 percent by weight.
Claim 11
Dependent Claim
25 words
The composition according to claim 6, for the dyeing of hair without oxidation means, having a pH-value within the range from 7 up to 10.5.
Claim 12
Dependent Claim
25 words
The composition according to claim 6, for the dyeing of hair without oxidation means, having a pH-value within the range from 7.5 up to 9.5.
Claim 13
Dependent Claim
23 words
The composition according to claim 6, for the dyeing of hair with oxidation means, further comprising at least one known oxidation hair dye.
Claim 14
Dependent Claim
37 words
The composition according to claim 6, for the dyeing of hair with oxidation means, further comprising for additional hair strengthening known direct-drawing on the hair dye means in aqueous-alcoholic soultion and at least one known cosmetic polymerizate.
Claim 15
Dependent Claim
29 words
The composition according to claim 6, for the dyeing of hair with oxidation means, having a pH-value between 8.0 and 11.5 adjusted by means of ammonia or organic amine.
Claim 16
Dependent Claim
21 words
The composition according to claim 14, wherein said organic amine is selected from the group consisting of monoethanol amine and triethanolamine.
Claim 17
Dependent Claim
28 words
The composition according to claim 6, for the dyeing of hair with oxidation means, containing oxidation means in a concentration between about 0.01 and 2.0 percent by weight.
Claim 18
Dependent Claim
19 words
The composition according to claim 16, wherein said oxidation means concentration is between 0.05 and 1.0 percent by weight.
Claim 19
Dependent Claim
20 words
The composition according to claim 16, having a total content of dye between about 0.1 and 5.0 percent by weight.
Claim 20
Dependent Claim
57 words
Method for the coloration of human hair without oxidation means, comprising applying onto the hair a hair coloring effective amount of the composition according to claim 6, leaving said composition on said hair for a period between 5 and 30 minutes, rinsing with water, with or without further rinsing with a weak organic acid, and then drying.
Claim 21
Dependent Claim
62 words
Method for the coloring of human hair with oxidation means, comprising mixing the composition according to claim 12 with oxidation means, applying onto said hair a hair coloring effective amount of said mixture, leaving said mixture on said hair for a period from 10 to 45 minutes, rinsing with water, with or without further rinsing with a weak organic acid, and drying.
References Cited (Backward Citations)
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