US5047066A
Expired / Lapsed
US
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Dye composition for keratinous fibers containing a 2-substituted 4-aminophenol compound as a developer, and a coupling substance
Assignee: Kao Corp
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Filing: 1989-06-05
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Granted: 1991-09-10
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Expires: 2009-06-05
Abstract
Abstract A hair dyeing composition comprising a special developer and a coupling agent is disclosed. The developer is a 4-aminophenol derivative substituted at the 2-position which is represented by the following formula (I), ##STR1## in which X represents a group --NHCOR 1 (R 1 is a linear or branched alkyl group having 1-5 carbon atoms), a group --COOR 2 [R 2 is a hydrogen atom, a linear or branched alkyl group having 1-5 carbon atoms, a monohydroxy alkyl group having 1-5 carbon atoms, a polyhydroxy alkyl group having 1-5 carbon atoms, or a group --(CH 2 ) n NR 3 R 4 (R 3 and R 4 individually represent a hydrogen atom or a linear or branched alkyl group having 1-5 carbon atoms, and n denotes an integer of 1-5)], a group --CONHR 2 , a nitrile group, a group --SO 3 R 2 , or a group --SO 2 NR 2 2 (R 2 has the same meaning as defined above and the two R 2 s may be the same or different), or a salt thereof. The dye composition provides a high degree of saturation and vividness of colors as well as good fastness.
Inventors
- 👤 Tsutomu Mano
- 👤 Jiro Kawase
- 👤 Daisuke Misu
- 👤 Michio Obayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415; A61K8/42; A61K8/44; A61K8/445; A61Q; A61Q5/00; A61Q5/10; D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/30; D06P3/3075
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
43 words
A dye composition for keratinous fibers, comprising a developer and a coupling substance, wherein the developer is 5-aminosalicylic acid or the methyl ester thereof or both, and the coupling agent is selected from the group consisting of 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene and 1,7-dihydroxylnaphthalene-2-carboxylic acid.
Claim 2
Dependent Claim
43 words
A dye composition for keratinous fibers, comprising a developer and a coupling substance, wherein the developer is 5-aminosalicylic acid or the methyl ester thereof or both, and the coupling agent is selected from the group consisting of 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene and 1,7-dihydroxylnaphthalene-2-carboxylic acid.
Claim 3
Dependent Claim
34 words
The dye composition for keratinous fibers according to claim 1, wherein said developer and said coupling agent are formulated in the dye composition in a molar ratio in the range of 1:0.5 to 1:2.
Claim 4
Dependent Claim
158 words
A dye composition for keratinous fibers, comprising a developer and a coupling substance, wherein the developer is a 4-aminophenol derivative substituted at the 2-position having the formula (I): ##STR4## wherein X represents a group--NHCOR 1 , wherein R 1 is a linear or branched alkyl group having 1 to 5 carbon atoms; an group --COOR 2 , wherein R 2 is a linear or branched alkyl group having 2 to 5 carbon atoms, a monohydroxy alkyl group having 1 to 5 carbon atoms, a polyhydroxy alkyl group having 1 to 5 carbon atoms or a group --(CH 2 ) n NR 3 R 4 , wherein R 3 and R 4 individually represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, and n denotes an integer of 1 to 5; a group defined above, and each R 2 is the same or different from the other, or a salt thereof.
Claim 5
Dependent Claim
158 words
A dye composition for keratinous fibers, comprising a developer and a coupling substance, wherein the developer is a 4-aminophenol derivative substituted at the 2-position having the formula (I): ##STR4## wherein X represents a group--NHCOR 1 , wherein R 1 is a linear or branched alkyl group having 1 to 5 carbon atoms; an group --COOR 2 , wherein R 2 is a linear or branched alkyl group having 2 to 5 carbon atoms, a monohydroxy alkyl group having 1 to 5 carbon atoms, a polyhydroxy alkyl group having 1 to 5 carbon atoms or a group --(CH 2 ) n NR 3 R 4 , wherein R 3 and R 4 individually represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, and n denotes an integer of 1 to 5; a group defined above, and each R 2 is the same or different from the other, or a salt thereof.
Claim 6
Dependent Claim
73 words
The dye composition for keratinous fibers according to claim 3, wherein X in the formula (I) is a group --NHCOR 1 , wherein R 1 is a linear or branched alkyl group having from 1 to 5 carbon atoms; --CONHR 2' ; --SO 3 R 2' , wherein R 2' is a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms; --SO 2 NH 2 or --CN.
Claim 7
Dependent Claim
34 words
The dye composition for keratinous fibers according to claim 3, wherein said developer and said coupling agent are formulated in the dye composition in a molar ratio in the range of 1:0.5 to 1:2.
Claim 8
Dependent Claim
42 words
The dye composition for keratinous fibers according to claim 3, wherein said 4-aminophenol derivative substituted at the 2-position is a compound selected from the group consisting of 2-acetylamino-4-aminophenol, 4-amino-2-propionylaminophenol, 4-amino-2-butylylaminophenol, 4-amino-2-carbamoylphenol, 5-aminosalicylic acid, methyl 5-aminosalicylate, ethyl 5-aminosalicylate, propyl 5-aminosalicylate, and butyl 5-aminosalicylate.
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