US3920384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autoxidizable hair dye containing preparations
Assignee: P&G Hair Care Holding Inc
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Filing: 1974-07-17
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Granted: 1975-11-18
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Expires: 1994-07-17
Abstract
Abstract An autoxidizable hair preparation capable of coloring hair when applied thereto and exposed to the atmosphere comprising N,Nbis(2-hydroxyethyl)-p-phenylenediamine or an acid addition salt thereof and a triol selected from the group consisting of 1,2,4benzenetriol and 2,4,5-trihydroxytoluene. The preparation is applied at multiple spaced intervals of time until the desired color build-up is attained. Also prepares the composition by preforming a solution of the triol by storing the corresponding triacetate in acid solution for a period of time then adding the N,N-bis(2-hydroxyethyl)-p-phenylenediamine.
Inventors
- 👤 Raymond Feinland
- 👤 Sigmund Iscowitz
- 👤 Milos S Bil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; A61K8/33; A61K8/34; A61K8/347; A61Q; A61Q5/00; A61Q5/10; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
AN AUTOXIDIZABLE HAIR PREPARATION CAPABLE OF COLORING HAIR WHEN APPLIED THERETO AND EXPOSED TO THE ATMOSPHERE COMPRISING AN AQUEOUS HAIR DYE CARRIER AND N,N-BIS(2-HYDROXYETHYL)-P-PHENYLENEDIAMINE OR AN ACID ADDITION SALT THEREOF AND A TRIOL SELECTED FROM THE GROUP CONSISTING OF 1,2,4-BENZENETRIOL AND 2,4,5-TRIHYDROXYTOLUENE; SAID P-PHENYLENEDIAMINE AND SAID TRIOL BEING PRESENT IN TINCTORIALLY EFFECTIVE AMOUNTS.
Claim 2
Dependent Claim
53 words
AN AUTOXIDIZABLE HAIR PREPARATION CAPABLE OF COLORING HAIR WHEN APPLIED THERETO AND EXPOSED TO THE ATMOSPHERE COMPRISING AN AQUEOUS HAIR DYE CARRIER AND N,N-BIS(2-HYDROXYETHYL)-P-PHENYLENEDIAMINE OR AN ACID ADDITION SALT THEREOF AND A TRIOL SELECTED FROM THE GROUP CONSISTING OF 1,2,4-BENZENETRIOL AND 2,4,5-TRIHYDROXYTOLUENE; SAID P-PHENYLENEDIAMINE AND SAID TRIOL BEING PRESENT IN TINCTORIALLY EFFECTIVE AMOUNTS.
Claim 3
Dependent Claim
12 words
preparation according to claim 1 in the form of an aqueous solution.
Claim 4
Dependent Claim
18 words
The preparation according to claim 1 in the form of an aerosol composition also containing a propellant system.
Claim 5
Dependent Claim
12 words
The preparation according to claim 1 also including a hair grooming agent.
Claim 6
Dependent Claim
25 words
The preparation according to claim 4 wherein the grooming agent comprises about 0.1% to 50% by weight based on the total weight of the composition.
Claim 7
Dependent Claim
51 words
A method for gradually coloring hair which comprises applying to said hair at multiple spaced intervals of time the composition of claim 1 and permitting said composition applied to said hair to be exposed to the atmosphere after each application whereby a gradual build-up of color is developed in said hair.
Claim 8
Dependent Claim
20 words
The method according to claim 6 wherein the hair is neither shampooed nor rinsed directly after the hair coloring operation.
Claim 9
Dependent Claim
58 words
An autoxidizable hair preparatIon capable of coloring hair when applied thereto and exposed to the atmosphere comprising an aqueous hair dye carrier containing from about 0.05% to 1.0% by weight of N,N-bis(2-hydroxyethyl)-p-phenylenediamine or an acid addition salt thereof and from about 0.02% to 1% by weight of a triol selected from the group consisting of 1,2,4-benzenetriol and 2,4,4-trihydroxytoluene.
Claim 10
Dependent Claim
58 words
An autoxidizable hair preparatIon capable of coloring hair when applied thereto and exposed to the atmosphere comprising an aqueous hair dye carrier containing from about 0.05% to 1.0% by weight of N,N-bis(2-hydroxyethyl)-p-phenylenediamine or an acid addition salt thereof and from about 0.02% to 1% by weight of a triol selected from the group consisting of 1,2,4-benzenetriol and 2,4,4-trihydroxytoluene.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |