US3892845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair shade adjuster
Assignee: Avon Products Inc
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Filing: 1972-09-29
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Granted: 1975-07-01
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Expires: 1992-09-29
Abstract
Abstract A method and composition of adjusting the color in keratinous fibers, such as wool, hair, fur and the like, comprising subjecting the fibers to a composition containing a combination of dye reducing agents and keratin reducing agents to produce the desired color shade. A high degree of color stability is achieved without the use of a peroxide or ammonia compound when a keratin disulfide reducing agent and an oxidative dye reducing agent are used in combination on dyed keratinous material.
Inventors
- 👤 Andrew J Cunningham
- 👤 Fred M Tuffile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/46; A61K8/55; A61Q; A61Q5/00; A61Q5/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
A METHOD OF REMOVING THE COLOR OF DYED KERATIN FIBERS WHICH COMPRISES: APPLYING TO THE FIBERS AN EFFECTIVE AMOUNT OF AQUEOUS COMPOSITION COMPRISING A COMBINATION OF FROM ABOUT 1 TO 15 PARTS OF AN OXIDATIVE DYE REDUCING AGENT OF ZINC SULFOXYLATE FORMALDEHYDE, POTASSIUM SULFOXYLATE FORMALDEHYDE, SODIUM SULFOXYLATE FORMALDEHYDE, CALCIUM SULFOXYLATE FORMALDEHYDE ZINCE HYDROSULFITE,POTASSIUM HYDROSULFITE, SODIUM HYDROSULFITE OR CALCIUM HYDROSULFITE AND FROM ABOUT 1 PART TO 25 PARTS OF DISULFIDE REDUCING AGENT CAPABLE OF CLEAVING COVALENT DISULFIDE LINKAGES OF THIOGLYCOLIC ACID, DITHIOTREITOL, POTASSIUM BISULFATE, SODIUM BISULFATE, POTASSIUM BISULFITE, SODIUM BISULFITE, POTASSIUM BBISULFLIDE, THIOUREA, TETRAKISHYDROXYALKI PHOSPHONIUM CHLORIDE, TRIS(HYDROXYALKYL)PHOSPHINE OR TRIS(HYDROXYALKYL)PHOSPHINE OXIDE WHEREIN THE ABOVE ALKYL GROUPS ARE C1-C3 HYDROCARBONS, TREATING THE FIBERS WITH THE REDUCING AGENTS UNTIL THE DESIRED COLOR SHADE IS PRODUCED, AND REMOVING THE REDUCING AGENTS FROM THE FIBERS.
Claim 2
Independent Claim
129 words
A METHOD OF REMOVING THE COLOR OF DYED KERATIN FIBERS WHICH COMPRISES: APPLYING TO THE FIBERS AN EFFECTIVE AMOUNT OF AQUEOUS COMPOSITION COMPRISING A COMBINATION OF FROM ABOUT 1 TO 15 PARTS OF AN OXIDATIVE DYE REDUCING AGENT OF ZINC SULFOXYLATE FORMALDEHYDE, POTASSIUM SULFOXYLATE FORMALDEHYDE, SODIUM SULFOXYLATE FORMALDEHYDE, CALCIUM SULFOXYLATE FORMALDEHYDE ZINCE HYDROSULFITE,POTASSIUM HYDROSULFITE, SODIUM HYDROSULFITE OR CALCIUM HYDROSULFITE AND FROM ABOUT 1 PART TO 25 PARTS OF DISULFIDE REDUCING AGENT CAPABLE OF CLEAVING COVALENT DISULFIDE LINKAGES OF THIOGLYCOLIC ACID, DITHIOTREITOL, POTASSIUM BISULFATE, SODIUM BISULFATE, POTASSIUM BISULFITE, SODIUM BISULFITE, POTASSIUM BBISULFLIDE, THIOUREA, TETRAKISHYDROXYALKI PHOSPHONIUM CHLORIDE, TRIS(HYDROXYALKYL)PHOSPHINE OR TRIS(HYDROXYALKYL)PHOSPHINE OXIDE WHEREIN THE ABOVE ALKYL GROUPS ARE C1-C3 HYDROCARBONS, TREATING THE FIBERS WITH THE REDUCING AGENTS UNTIL THE DESIRED COLOR SHADE IS PRODUCED, AND REMOVING THE REDUCING AGENTS FROM THE FIBERS.
Claim 3
Dependent Claim
35 words
The method according to claim 1 wherein the disulfide reducing agent is tetrakis(hydroxymethyl) phosphonium chloride and is used with a dye reducing agent of sulfoxylate-formaldehyde metal salt, said metal being zinc, sodium, calcium or potassium.
Claim 4
Dependent Claim
32 words
The method according to claim 1 wherein the disulfide reducing agent is thioglycollic acid and the dye reducing agent is a sulfoxylate-formaldehyde metal salt, said metal being zinc, sodium, calcium, or potassium.
Claim 5
Dependent Claim
21 words
The method according to claim 1 wherein the combined reducing agents are applied to the fibers in an aqueous shampoo solution.
Claim 6
Dependent Claim
28 words
The method according to claim 1 wherein the combined reducing agents are applied to and treat the fibers for a period ranging from 15 minutes to 60 minutes.
Claim 7
Dependent Claim
101 words
An aqueous composition for removing the color of dyed keratin fibers comprising from about 1 to about 25 parts of disulfide reducing agent selected from the group consisting of thioglycollic acid, dithiothreitol, potassium bisulfate, sodium bisulfate, potassium bisulfite, sodium bisulfite, potassium sulfide, thiourea, tetrakis(hydroxyalkyl)phosphonium chloride, tris(hydroxyalkyl) phosphine and tris(hydroxyalkyl)phosphine oxide wherein the above alkyl groups are C1-C3 hydrocarbons in combination with from about 1 to about 15 parts of an oxidative dye reducing agent selected from the group consisting of zinc sulfoxylate formaldehyde, potassium sulfoxylate formaldehyde, sodium sulfoxylate formaldehyde, calcium sulfoxylate formaldehyde, zinc hydrosulfite, potassium hydrosulfite, sodium hydrosulfite and calcium hydrosulfite.
Claim 8
Dependent Claim
101 words
An aqueous composition for removing the color of dyed keratin fibers comprising from about 1 to about 25 parts of disulfide reducing agent selected from the group consisting of thioglycollic acid, dithiothreitol, potassium bisulfate, sodium bisulfate, potassium bisulfite, sodium bisulfite, potassium sulfide, thiourea, tetrakis(hydroxyalkyl)phosphonium chloride, tris(hydroxyalkyl) phosphine and tris(hydroxyalkyl)phosphine oxide wherein the above alkyl groups are C1-C3 hydrocarbons in combination with from about 1 to about 15 parts of an oxidative dye reducing agent selected from the group consisting of zinc sulfoxylate formaldehyde, potassium sulfoxylate formaldehyde, sodium sulfoxylate formaldehyde, calcium sulfoxylate formaldehyde, zinc hydrosulfite, potassium hydrosulfite, sodium hydrosulfite and calcium hydrosulfite.
Claim 9
Dependent Claim
32 words
A composition according to claim 6 wherein the disulfide reducing agent is a tetrakis(hydroxyalkyl)phosphonium chloride wherein the alkyl group is methyl, ethyl or propyl and the dye reducing agent is potassium sulfoxylate-formaldehyde.
Claim 10
Dependent Claim
14 words
A composition according to claim 6 wherein the dye reducing agent is zince sulfoxylate-formaldehyde.
Claim 11
Dependent Claim
14 words
A composition according to claim 6 wherein the dye reducing agent is zinc hydrosulfite.
Claim 12
Dependent Claim
14 words
A composition according to claim 6 wherein the disulfide reducing agent is thioglycollic acid.
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) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |