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US4366827A
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Procedure for the permanent reshaping of hair, and composition intended for carrying out said procedure
Assignee: L'Oréal SA
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Filing: 1980-12-18
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Granted: 1983-01-04
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Expires: 2000-12-18
Abstract
Abstract A process for the permanent reshaping of hair consists in reducing the bisulfide bonds of the keratin by applying a reducing composition containing a cationic polymer and reforming the said bonds by applying an oxidizing composition in the presence of an anionic surface active agent.
Inventors
- 👤 Annie Madrange
- 👤 Daniel Boixader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61K8/30; A61K8/46; A61K8/463; A61K8/466; A61K8/84; A61Q; A61Q5/00; A61Q5/04; A61K2800/00; A61K2800/40; A61K2800/54; A61K2800/542; A61K2800/5426; Y; Y10; Y10S; Y10S424/00; Y10S424/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
Procedure for the permanent reshaping of hair consisting in a first step involving reduction of the bisulfide bonds of the keratin by applying a reducing composition, then in a second step for reforming the said bonds by applying an oxidizing composition, characterized by the fact that the reduction stage is carried out using a reducing composition containing at least one cationic polymer and the fact that the fixing stage is carried out in the presence of at least one anionic tensio-active agent.
Claim 2
Dependent Claim
82 words
Procedure for the permanent reshaping of hair consisting in a first step involving reduction of the bisulfide bonds of the keratin by applying a reducing composition, then in a second step for reforming the said bonds by applying an oxidizing composition, characterized by the fact that the reduction stage is carried out using a reducing composition containing at least one cationic polymer and the fact that the fixing stage is carried out in the presence of at least one anionic tensio-active agent.
Claim 3
Dependent Claim
29 words
Procedure according to claim 1, characterized by the fact that the said reducing composition is allowed to act for a period of time ranging from 5 to 30 minutes.
Claim 4
Dependent Claim
29 words
Procedure according to claim 1, characterized by the fact that the said oxidizing composition is allowed to act for a period of time ranging from 2 to 10 minutes.
Claim 5
Dependent Claim
29 words
Procedure according to any one of the above claims, characterized by the fact that the fixing stage is carried out using an oxidizing compound containing the anionic tensio-active agent.
Claim 6
Dependent Claim
50 words
Procedure according to any one of claims 1 to 3, characterized by the fact that the fixing stage is carried out in two steps, the first step consisting in the application of an oxidizing composition and the second step in the application of a composition containing the anionic tensio-active agent.
Claim 7
Dependent Claim
46 words
Procedure according to any one of claims 1 to 6, characterized by the fact that the cationic polymer is present in the reducing compound in a concentration of between 0.2 percent and 5 percent by weight with respect to the total weight of the said composition.
Claim 8
Dependent Claim
26 words
Procedure according to any one of claim 1 to 6, characterized by the fact that the pH of the reducing composition is between 6.5 and 10.
Claim 9
Dependent Claim
39 words
Procedure according to claim 4, characterized by the fact that the oxidizing composition contains the anionic tensio-active agent in a concentration of between 0.5 and 30 percent by weight with respect to the total weight of the said composition.
Claim 10
Dependent Claim
61 words
Procedure according to any one of the preceding claims, characterized by the fact that the anionic tensio-active agent is preferably a lauryl sulfate of sodium, ammonium, or mono-, di- or triethanolamine, a lauryl ether sulfate of sodium, ammonium, or mono-, d-, or triethanolamine oxyethylenated using 2 to 3 moles of ethylene oxide, an -olefin sulfonate, an alkylsarcosinate or a paraffin sulfonate.
Claim 11
Dependent Claim
55 words
Two-part composition intended for successive use in carrying out the procedure according to any one of claims 1 to 9, characterized by the fact that the first part consists in a reducing composition containing at least one cationic polymer and the second part consists in an oxidizing composition containing at least one anionic tensio-active agent.
Claim 12
Dependent Claim
50 words
Composition according to claim 10, characterized by the fact that the said first part is itself in two parts, one of which consists in the reducing composition and the other in a composition containing the cationic polymer, said two parts being designed to be mixed at the time of use.
Claim 13
Dependent Claim
59 words
Composition according to claim 10, characterized by the fact that the said second part is itself in two parts, one consisting in the oxidizing composition and the other in a composition containing the anionic tensio-active agent, the said two parts being designed to be mixed at the time of use or to be applied to the hair in succession.
Claim 14
Dependent Claim
62 words
Composition according to any one of claims 10 and 11, characterized by the fact that the first part made up of the reducing composition, whether or not it contains the polymer in mixture, also contains cosmetic ingredients such as softening agents, thickening agents, protein hydrolysates, waxes, agents to make the mixture opaque, perfumes, coloring agents, nonionic or cationic tensio-actives, or treating agents.
Claim 15
Dependent Claim
62 words
Composition according to any one of claims 10 and 12, characterized by the fact that the second part made up of the oxidizing composition, whether or not it contains the anionic tensio-active agent in mixture, also contains cosmetic ingredients such as stabilizing agents, preservatives, softening agents, agents to make the mixture opaque, perfumes, coloring agents, sequestering agents, acidifying agents, or alkalizing agents.
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) | 1986-01-03 | 1986-07-05 | 1987-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-03 | 1990-07-05 | 1991-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-03 | 1994-07-05 | 1995-01-04 | $7700.00 | Window Closed / Lapsed |