US4629466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation hair dyes comprising bis-(2,4-diaminophenyl)-alkanes as coupling components
Assignee: Henkel AG and Co KGaA
•
Filing: 1983-02-10
•
Granted: 1986-12-16
•
Expires: 2003-02-10
Abstract
Abstract This invention is directed to compositions of the developer-coupler type of the dyeing of hair consisting essentially of bis-(2,4-diaminophenyl)-alkanes or salts thereof as coupling components and, as developer components, the conventional components used in oxidation dyes.
Inventors
- 👤 David Rose
- 👤 Edgar Lieske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
63 words
A composition of the developer-coupler type for the dyeing of the hair, consisting essentially of at least one compound of the formula ##STR2## wherein R represents an alkylene having 3 or 4 carbon atoms, or a salt thereof with an inorganic or organic acid, as coupling component, and, as developer component, one or more of the conventional developer components used in oxidation dyes.
Claim 2
Dependent Claim
63 words
A composition of the developer-coupler type for the dyeing of the hair, consisting essentially of at least one compound of the formula ##STR2## wherein R represents an alkylene having 3 or 4 carbon atoms, or a salt thereof with an inorganic or organic acid, as coupling component, and, as developer component, one or more of the conventional developer components used in oxidation dyes.
Claim 3
Dependent Claim
12 words
The composition of claim 1, wherein R represents an n-propylene or n-butylene.
Claim 4
Dependent Claim
14 words
The composition of claim 1, wherein the developer components are aromatic or heterocyclic diamines.
Claim 5
Dependent Claim
23 words
The composition of claim 1 which additionally contains conventional additives selected from the group consisting of conventional couplers and conventional directly absorbing dyes.
Claim 6
Dependent Claim
20 words
The composition of claim 1, wherein the composition comprises from about 0.05 to 5 percent by weight of developer/coupler combination.
Claim 7
Dependent Claim
20 words
The composition of claim 5, wherein the composition comprises from about 1 to 3 percent by weight of developer/coupler combination.
Claim 8
Dependent Claim
46 words
A process for the dyeing of human hair comprising applying to said hair, at temperatures ranging substantially from about 15° to 40° C. for a time sufficient to effect dyeing through oxidation, an effective amount of the developer/coupler composition of claim 1 in an aqueous medium.
Claim 9
Dependent Claim
23 words
The process for the dyeing of hair of claim 7, wherein the oxidation is effected by the action of a chemical oxidation agent.
Claim 10
Dependent Claim
17 words
A compound of the formula ##STR3## wherein R represents an alkylene having 3 or 4 carbon atoms.
Claim 11
Dependent Claim
17 words
A compound of the formula ##STR3## wherein R represents an alkylene having 3 or 4 carbon atoms.
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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |