US4371370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation hair dyes comprising bis-(2,4-diaminophenoxy)-alkanols as coupling components
Assignee: Henkel AG and Co KGaA
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Filing: 1981-03-04
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Granted: 1983-02-01
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Expires: 2001-03-04
Abstract
Abstract This invention is directed to bis-(2,4-diaminophenoxy)-alkanols and salts thereof and to compositions of the developer-coupler type for the dyeing of hair, consisting essentially of bis-(2,4-diaminophenoxy)-alkanols or salts thereof as coupling components and, as developer components, the conventional components used in oxidation dyes.
Inventors
- 👤 David Rose
- 👤 Hinrich Moller
- 👤 Norbert Maak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:28
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; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
28 words
A compound of the formula ##STR5## where R is selected from the group consisting of the radicals ##STR6## or a salt thereof with an inorganic or organic acid.
Claim 2
Dependent Claim
28 words
A compound of the formula ##STR5## where R is selected from the group consisting of the radicals ##STR6## or a salt thereof with an inorganic or organic acid.
Claim 3
Dependent Claim
55 words
A composition of the developer-coupler type for the dyeing of the hair, consisting essentially of a carrier, at least one compound of claim 1, as coupling component, and, as developer component, one or more oxidative dye developer components, said coupler and said developer being present in a molar ratio of from about 2:1 to 1:2.
Claim 4
Dependent Claim
22 words
The composition of claim 2 which additionally contains conventional additives selected from the group consisting of oxidative dye couplers and direct dyes.
Claim 5
Dependent Claim
20 words
The composition of claim 2 wherein the composition comprises from about 0.2 to 5 percent by weight of developer-coupler combination.
Claim 6
Dependent Claim
20 words
The composition of claim 4 wherein the composition comprises from about 1 to 3 percent by weight of developer-coupler combination.
Claim 7
Dependent Claim
45 words
A process for the dyeing of hair comprising applying to said hair, at temperatures ranging substantially from about 15° to 40° C. for a time sufficient to effect dyeing through atmospheric or chemical oxidation, an effective amount of the developer-coupler composition according to claim 2.
Claim 8
Dependent Claim
23 words
The process for the dyeing of hair of claim 6 wherein the oxidation is effected by the action of a chemical oxidation agent.
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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |