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US5849042A
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Hair dye compositions containing 2,3 dialkyl-4-aminophenol and a 2-alkyl-1-naphthol
Assignee: Noxell Corp
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Filing: 1997-11-19
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Granted: 1998-12-15
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Expires: 2017-11-19
Abstract
Abstract A 2-Substituted-1-naphthol of the formula: <IMAGE> wherein R3 is C1-C6 alkyl or monohydroxy C1-C6 alkyl couples with a primary intermediate of the formula: <IMAGE> wherein R1 and R2 are each independently C1-C6 alkyl to produce an oxidative dye.
Inventors
- 👤 Mu-Ill Lim
- 👤 Yuh-Guo Pan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/347; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
In an oxidative dye composition for dyeing a keratin fiber, the composition containing a primary intermediate, a coupler, and a cosmetically acceptable vehicle, the primary intermediate and the coupler being present in respective amounts such that in the presence of an oxidizing agent they react to produce a tinctorially effective amount of a dye, the improvement comprising the coupler is a 2-substituted-1-naphthol compound having the formula I ##STR6## wherein R 3 is C 1 -C 6 alkyl or monohydroxy C 1 -C 6 -alkyl and the primary intermediate is a compound of the formula II: ##STR7## wherein R 1 and R 2 are each in dependently C 1 -C 6 alkyl.
Claim 2
Dependent Claim
111 words
In an oxidative dye composition for dyeing a keratin fiber, the composition containing a primary intermediate, a coupler, and a cosmetically acceptable vehicle, the primary intermediate and the coupler being present in respective amounts such that in the presence of an oxidizing agent they react to produce a tinctorially effective amount of a dye, the improvement comprising the coupler is a 2-substituted-1-naphthol compound having the formula I ##STR6## wherein R 3 is C 1 -C 6 alkyl or monohydroxy C 1 -C 6 -alkyl and the primary intermediate is a compound of the formula II: ##STR7## wherein R 1 and R 2 are each in dependently C 1 -C 6 alkyl.
Claim 3
Dependent Claim
26 words
The composition according to claim 1, wherein the compound of formula I is selected from the group consisting of 2-methyl-1-naphthol, 2-ethyl-1-naphthol, 2-propyl-1-naphthol, 2-hydroxymethyl-1-naphthol, 2-(2-hydroxyethyl)-1-naphthol and 2-(3-hydroxypropyl)-1-naphthol.
Claim 4
Dependent Claim
14 words
The composition of claim 1, wherein the primary intermediate is 2,3-dimethyl-4-aminophenol, 2,3-diethyl-4-aminophenol, or 2,3-dipropyl-4-aminophenol.
Claim 5
Dependent Claim
17 words
The composition according to claim 1, wherein the primary intermediate is 2,3-dimethyl-4-aminophenol and the coupler is 2-methyl-1-naphthol.
Claim 6
Dependent Claim
102 words
In a method for dyeing hair including the steps of reacting a primary intermediate with a coupler in the presence of an oxidizing agent to produce a tinctorially effective amount of an oxidation hair dye and contacting a hair fiber with a composition containing said dye, the improvement comprising the coupler is a 2-substituted-1-naphthol compound having the formula I ##STR8## wherein R 3 is C 1 -C 6 alkyl or monohydroxy C 1 -C 6 -alkyl, and the primary intermediate is a compound of the formula II: ##STR9## wherein R 1 and R 2 are each independently C 1 -C 6 alkyl.
Claim 7
Dependent Claim
102 words
In a method for dyeing hair including the steps of reacting a primary intermediate with a coupler in the presence of an oxidizing agent to produce a tinctorially effective amount of an oxidation hair dye and contacting a hair fiber with a composition containing said dye, the improvement comprising the coupler is a 2-substituted-1-naphthol compound having the formula I ##STR8## wherein R 3 is C 1 -C 6 alkyl or monohydroxy C 1 -C 6 -alkyl, and the primary intermediate is a compound of the formula II: ##STR9## wherein R 1 and R 2 are each independently C 1 -C 6 alkyl.
Claim 8
Dependent Claim
26 words
The method according to claim 5, wherein the compound of formula I is selected from the group consisting of 2-methyl-1-naphthol, 2-ethyl-1-naphthol, 2-propyl-1-naphthol, 2-hydroxymethyl-1-naphthol, 2-(2-hydroxyethyl)-1-naphthol and 2-(3-hydroxypropyl)-1-naphthol.
Claim 9
Dependent Claim
12 words
The method according to claim 5, wherein the primary intermediate is 2,3-dimethyl-4-aminophenol.
Claim 10
Dependent Claim
20 words
The method according to claim 5, wherein the primary intermediate is 2,3-dimethyl-4-aminophenol and the coupler of formula I is 2-methyl-1-naphthol.
Claim 11
Dependent Claim
28 words
The composition according to claim 1, further containing at least one material selected from the group consisting of perfumes, antioxidants, sequestering agents, alkalizing agents, acidifying agents and developers.
Claim 12
Dependent Claim
21 words
The composition according to claim 1, further containing at least one other primary intermediate or coupler other than I or II.
Claim 13
Dependent Claim
23 words
The method of claim 5, wherein the composition further contains at least one other primary intermediate or coupler other than I or II.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2001-12-14 | 2002-06-15 | 2002-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-14 | 2006-06-15 | 2006-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-14 | 2010-06-15 | 2010-12-15 | $7700.00 | Window Closed / Lapsed |