US4092102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing keratin fibers with 2-substituted m-toluenediamines
Assignee: P&G Hair Care Holding Inc
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Filing: 1976-08-20
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Granted: 1978-05-30
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Expires: 1996-08-20
Abstract
Abstract Oxidation dye compositions particularly useful for dyeing human hair containing as the meta component compounds of the formula: <IMAGE> or their non-toxic salts, wherein R is alkyl, hydroxyalkyl, phenylalkyl, phenylsulfonyls, alkylsulfonyls or cyanoalkyl.
Inventors
- 👤 Alexander Halasz
- 👤 David Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:23
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; A61Q; A61Q5/00; A61Q5/10; C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
Oxidation dye compositions comprising a water containing oxidation hair dye vehicle containing a para component and meta component being reactive with each other in the presence of an oxidizing agent to form a colored dye on hair, said meta component being an N 2 -substituted m-toluenediamine of the formula: ##STR16## or non-toxic salts thereof, wherein R is alkyl or hydroxyalkyl; and said para component being selected from p-phenylenediamine, p-toluenediamine, and p-aminodiphenylamine the ph of said aqueous composition being 8-11.
Claim 2
Dependent Claim
79 words
Oxidation dye compositions comprising a water containing oxidation hair dye vehicle containing a para component and meta component being reactive with each other in the presence of an oxidizing agent to form a colored dye on hair, said meta component being an N 2 -substituted m-toluenediamine of the formula: ##STR16## or non-toxic salts thereof, wherein R is alkyl or hydroxyalkyl; and said para component being selected from p-phenylenediamine, p-toluenediamine, and p-aminodiphenylamine the ph of said aqueous composition being 8-11.
Claim 3
Dependent Claim
32 words
Compositions according to claim 1 wherein the alkyl or alkyl moiety of the groups represented by R contain 1 to 6 carbons and the hydroxyalkyl further contains 1 to 3 hydroxy groups.
Claim 4
Dependent Claim
14 words
Compositions according to claim 2 wherein the hair dye vehicle is an aqueous vehicle.
Claim 5
Dependent Claim
25 words
Compositions according to claim 1 in which the meta component comprises about 0.1% to 6% by weight based on the total weight of the composition.
Claim 6
Dependent Claim
25 words
Compositions according to claim 4 in which the para component comprises about 0.1% to 6% by weight based on the total weight of the composition.
Claim 7
Dependent Claim
23 words
Compositions according to claim 5 in which said meta component is ##STR17## or its non-toxic salts wherein alkyl has 1 to 6 carbons.
Claim 8
Dependent Claim
11 words
Compositions according to claim 6 wherein the para component is p-phenylenediamine.
Claim 9
Dependent Claim
11 words
Compositions according to claim 6 wherein said para component is p-toluenediamine.
Claim 10
Dependent Claim
11 words
Compositions according to claim 6 wherein the para component is p-aminodiphenylamine.
Claim 11
Dependent Claim
29 words
Compositions according to claim 5 in which said meta component is ##STR18## or its non-toxic salts wherein hydroxyalkyl contains 1 to 6 carbons and 1 to 3 hydroxy groups.
Claim 12
Dependent Claim
11 words
Compositions according to claim 10 wherein the para component is p-phenylenediamine.
Claim 13
Dependent Claim
11 words
Compositions according to claim 10 wherein said para component is p-toluenediamine.
Claim 14
Dependent Claim
11 words
Compositions according to claim 10 wherein said para component is p-aminodiphenylamine.
Claim 15
Dependent Claim
48 words
A method for dyeing human hair which comprises mixing the oxidation dye composition of claim 1 with an oxidizing agent, applying the resulting mixture to human hair, and allowing said mixture to remain in contact with said hair for a period of time to effectively dye said hair.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |