US4659566A
Expired / Lapsed
US
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Compositions and methods for permanently waving or straightening hair
Assignee: BTG International Ltd
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Filing: 1984-08-21
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Granted: 1987-04-21
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Expires: 2004-08-21
Abstract
Abstract The invention relates to novel reducing compositions for reducing the disulfide bonds of keratin, comprising a regenerable reducing agent, such as an iodide salt, ferrocyanide salt, bromide salt and antimony(III) tartrate salt, capable of reducing the disulfide bonds of keratin, in combination with a consumable reducing agent, such as a salt or ester of thioglycolic acid, or a sulfite, bisulfite, hydrosulfite, metabisulfite or sulfoxylate salt, in which the consumable reducing agent is capable of regenerating the regenerable reducing agent by reducing the oxidized form of the regenerable reducing agent. Neutralizing compositions compatible with such reducing compositions, as well as methods for permanently waving or straightening hair or fur, are also encompassed by the invention.
Inventors
- 👤 Henry G. Petrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:58
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/23; A61K8/30; A61K8/46; A61Q; A61Q5/00; A61Q5/04
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
58 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and a water soluble keratin reducing thioglycolate salt, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the thioglycolate salt is from about 0.4 to about 1.2 molar.
Claim 2
Dependent Claim
58 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and a water soluble keratin reducing thioglycolate salt, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the thioglycolate salt is from about 0.4 to about 1.2 molar.
Claim 3
Dependent Claim
22 words
The reducing composition according to claim 1, in which the concentration of iodide salt is from about 0.15 to about 1 molar.
Claim 4
Dependent Claim
25 words
The reducing composition according to claim 1, in which the concentration of the keratin reducing thioglycolate salt is from about 0.5 to about 1 molar.
Claim 5
Dependent Claim
17 words
The reducing composition according to claim 1, in which the keratin reducing thioglycolate salt is ammonium thioglycolate.
Claim 6
Dependent Claim
17 words
The reducing composition according to claim 1, in which the keratin reducing thioglycolate salt is monoethanolammonium thioglycolate.
Claim 7
Dependent Claim
73 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and a water soluble, consumable keratin reducing agent selected from the group consisting of salts of sulfites, bisulfites, hydrobisulfites, metabisulfites and sulfoxylates, in which the concentration of the iodide salt is from about 0.15 to about 1 molar and the concentration of the consumable reducing agent is from about 0.3 to about 2 molar.
Claim 8
Dependent Claim
73 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and a water soluble, consumable keratin reducing agent selected from the group consisting of salts of sulfites, bisulfites, hydrobisulfites, metabisulfites and sulfoxylates, in which the concentration of the iodide salt is from about 0.15 to about 1 molar and the concentration of the consumable reducing agent is from about 0.3 to about 2 molar.
Claim 9
Dependent Claim
25 words
The reducing composition according to claim 6, in which the concentration of the consumable keratin reducing agent is from about 0.7 to about 2 molar.
Claim 10
Dependent Claim
18 words
The reducing composition according to claim 6, in which the consumable keratin reducing agent is a sulfite salt.
Claim 11
Dependent Claim
18 words
The reducing composition according to claim 6, in which the consumable keratin reducing agent is a bisulfite salt.
Claim 12
Dependent Claim
68 words
A process for setting hair or fur, comprising: (a) applying to hair or fur a reducing composition according to claim 1; (b) allowing the hair or fur to stand in a desired configuration; (c) applying to the hair or fur a sufficient amount of an aqueous neutralizing composition to provide permanent waving or straightening of the hair or fur; and (d) washing and drying the hair or fur.
Claim 13
Dependent Claim
68 words
A process for setting hair or fur, comprising: (a) applying to hair or fur a reducing composition according to claim 6; (b) allowing the hair or fur to stand in a desired configuration; (c) applying to the hair or fur a sufficient amount of an aqueous neutralizing composition to provide permanent waving or straightening of the hair or fur; and (d) washing and drying the hair or fur.
Claim 14
Dependent Claim
52 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and glycerol monothioglycolate, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the glycerol monothioglycolate is from about 0.6 about 1.5 molar.
Claim 15
Dependent Claim
52 words
A reducing composition for reducing disulfide bonds of keratin, comprising an aqueous solution of a water soluble iodide salt and glycerol monothioglycolate, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the glycerol monothioglycolate is from about 0.6 about 1.5 molar.
Claim 16
Dependent Claim
23 words
The reducing composition according to claim 12, in which the concentration of the iodide salt is from about 0.15 to about 1 molar.
Claim 17
Dependent Claim
68 words
A process for setting hair or fur, comprising: (a) applying to hair or fur a reducing composition according to claim 12, (b) allowing the hair or fur to stand in a desired configuration; (c) applying to the hair or fur a sufficient amount of an aqueous neutralizing composition to provide permanent waving or straightening of the hair or fur; and (d) washing and drying the hair or fur.
Claim 18
Dependent Claim
127 words
A process for setting hair or fur, comprising: (a) applying to hair or fur a reducing composition comprising an aqueous solution of a water soluble iodide salt and a water soluble, consumable keratin reducing agent selected from the group consisting of sulfites, bifulites, hydrobisulfites, metabisulfites and sulfoxylates, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the consumable keratin reducing agent is from about 0.3 to about 2 molar; (b) allowing the hair or fur to stand in a desired configuration; (c) applying to the hair or fur a sufficient amount of an aqueous neutralizing composition to provide permanent waving or straightening of the hair or fur; and (d) washing and drying the hair or fur.
Claim 19
Dependent Claim
127 words
A process for setting hair or fur, comprising: (a) applying to hair or fur a reducing composition comprising an aqueous solution of a water soluble iodide salt and a water soluble, consumable keratin reducing agent selected from the group consisting of sulfites, bifulites, hydrobisulfites, metabisulfites and sulfoxylates, in which the concentration of the iodide salt is from about 0.05 to about 1 molar and the concentration of the consumable keratin reducing agent is from about 0.3 to about 2 molar; (b) allowing the hair or fur to stand in a desired configuration; (c) applying to the hair or fur a sufficient amount of an aqueous neutralizing composition to provide permanent waving or straightening of the hair or fur; and (d) washing and drying the hair or fur.
Claim 20
Dependent Claim
18 words
The process according to claim 10, 11, 14 or 15, in which the neutralizing composition comprises sodium bromate.
Claim 21
Dependent Claim
20 words
The process according to claim 10, 11, 14 or 15, in which the neutralizing composition comprises potassium antimony (V) tartrate.
Claim 22
Dependent Claim
33 words
The process according to claim 10, 11, 14 or 15, in which the neutralizing composition comprises hydrogen peroxide with a sufficient amount of a protective reducing agent to reduce any iodine to iodide.
Claim 23
Dependent Claim
15 words
The process according to claim 18, in which the protective reducing agent is ascorbic acid.
Claim 24
Dependent Claim
14 words
The process according to claim 18, in which the protective reducing agent is carbazide.
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