Patent US4314809A successfully refreshed from Google Patents.
US4314809A
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US
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Novel coupler components for oxidation hair dyes, the manufacture thereof, and hair colorants
Assignee: Henkel AG and Co KGaA
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Filing: 1979-11-14
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Granted: 1982-02-09
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Expires: 1999-11-14
Abstract
Abstract This invention is directed to novel bis-(2,4-diaminophenoxy)-alkanes and a method of preparing them. This invention is also directed to the use of said bis-(2-4-diaminophenoxy)-alkanes, or the salts thereof, as coupler components in developer-coupler oxidation hair dyeing compositions.
Inventors
- 👤 David Rose
- 👤 Peter Busch
- 👤 Edgar Lieske
- 👤 Gunther Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:03
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
An aqueous preparation of the developer-coupler type for the dyeing of hair, consisting essentially of (A), as coupler, a bis-(2,4-diaminophenoxy)-alkane of formula ##STR2## wherein R is a linear or branched alkylene radical of from 1 to 12 carbon atoms, or an inorganic or organic acid salt thereof, and (B), as developer, one of the conventional developer substances.
Claim 2
Dependent Claim
57 words
An aqueous preparation of the developer-coupler type for the dyeing of hair, consisting essentially of (A), as coupler, a bis-(2,4-diaminophenoxy)-alkane of formula ##STR2## wherein R is a linear or branched alkylene radical of from 1 to 12 carbon atoms, or an inorganic or organic acid salt thereof, and (B), as developer, one of the conventional developer substances.
Claim 3
Dependent Claim
27 words
The aqueous preparation of claim 1 which contains from about 0.2 to 5% by weight of the developer-coupler combination, based on the total weight of the preparation.
Claim 4
Dependent Claim
27 words
The aqueous preparation of claim 2 which contains from about 1 to 3% by weight of the developer-coupler combination, based on the total weight of the preparation.
Claim 5
Dependent Claim
32 words
A process for the dyeing of hair which comprises applying to said hair for a time sufficient to effect dyeing through oxidation, an effective amount of the aqueous preparation of claim 1.
Claim 6
Dependent Claim
20 words
The process of claim 4 wherein the aqueous preparation is applied at temperatures ranging from about 15° to 40° C.
Claim 7
Dependent Claim
19 words
The process of claim 4 wherein the oxidation is also effected by the action of a chemical oxidizing agent.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |