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EP0193471B2
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Use of an anhydrous solution of hydrogen peroxide in cosmetic and therapeutic preparations
Assignee: L'Oréal SA
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Filing: 1986-02-26
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Granted: 1993-10-06
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Expires: 2006-02-26
Abstract
Abstract A liquid, essentially anhydrous solution of hydrogen peroxide in at least one organic solvent is employed in therapeutic and cosmetic formulations. The solution contains from 1 to 20 weight percent hydrogen peroxide and less than 1 weight percent water. The therapeutic formulation can be used in the treatment of acne, dermatoses, ulcers and in the lightening and disinfection of the skin. The cosmetic formulations can be used in the bleaching or oxidation dyeing of hair or in the neutralization stage of a permanent wave operation or in the straightening of hair.
Inventors
- 👤 Bernard Jacquet
- 👤 Quintino Gaetani
- 👤 Michel Hocquaux
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:34
CPC Classifications
A; A61; A61Q; A61Q17/00; A61K; A61K33/00; A61K33/40; A61K8/00; A61K8/18; A61K8/19; A61K8/22; A61Q19/00; A61Q19/02; A61Q5/00; A61Q5/04; A61Q5/08; A61Q5/10; A61K2800/00; A61K2800/20; A61K2800/30; A61K2800/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
Use of an essentially anhydrous liquid solution of hydrogen peroxide, in at least one organic solvent, for the preparation of a therapeutic composition intended for the treatment of acne, dermatoses and skin ulcers, the said organic solvent being selected from an alcohol having from 2 to 20 carbon atoms, a polyol and an oligomeric polyether, and the said solution containing from 0.1 to 20% by weight of hydrogen peroxide as sole active principle and less than 1% by weight of water.
Claim 2
Dependent Claim
81 words
Use of an essentially anhydrous liquid solution of hydrogen peroxide, in at least one organic solvent, for the preparation of a therapeutic composition intended for the treatment of acne, dermatoses and skin ulcers, the said organic solvent being selected from an alcohol having from 2 to 20 carbon atoms, a polyol and an oligomeric polyether, and the said solution containing from 0.1 to 20% by weight of hydrogen peroxide as sole active principle and less than 1% by weight of water.
Claim 3
Dependent Claim
83 words
Use of an essentially anhydrous liquid solution of hydrogen peroxide, in at least one organic solvent, in operations of bleaching or oxidation dyeing of hair and of neutralisation of permanent waving or straightening of hair, the said organic solvent being selected from an alcohol having from 2 to 20 carbon atoms, a polyol and an oligomeric polyether, and the said solution containing from 0.1 to 20% by weight of hydrogen peroxide as sole active principle and less than 1% by weight of water.
Claim 4
Dependent Claim
83 words
Use of an essentially anhydrous liquid solution of hydrogen peroxide, in at least one organic solvent, in operations of bleaching or oxidation dyeing of hair and of neutralisation of permanent waving or straightening of hair, the said organic solvent being selected from an alcohol having from 2 to 20 carbon atoms, a polyol and an oligomeric polyether, and the said solution containing from 0.1 to 20% by weight of hydrogen peroxide as sole active principle and less than 1% by weight of water.
Claim 5
Dependent Claim
36 words
Use according to one of Claims 1 or 2, characterised in that the essentially anhydrous solution has a hydrogen peroxide content of between 1 and 10% by weight and a water content of less than 0.5%.
Claim 6
Dependent Claim
39 words
Use according to one of Claims 1 or 2, characterised in that the alcohol having from 2 to 20 carbon atoms is selected from- the group consisting of ethanol, n-propanol, amyl alcohol, isopropanol, oleyl alcohol, cyclohexanol and benzyl alcohol.
Claim 7
Dependent Claim
31 words
Use according to one of Claims 1 or 2, characterised in that the polyol is selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, glycerol and their ethers.
Claim 8
Dependent Claim
148 words
Use according to one of Claims 1 or 2, characterised in that the oligomeric polyether is selected from those of ethylene oxide, of propylene oxide and their ethers, as well as from the oligomeric polyethers corresponding to the following formula: in which: R denotes a linear or branched alkyl radical having from 1 to 12 atoms, R 1' R 2 , R 3 and R 4 , which may be identical or different, denote a hydrogen atom, or an alkyl radical having from 1 to 6 carbon atoms, at least 2 of the radicals R 1' R 2 , R 3 or R 4 denoting a hydrogen atom, m is 1 to 4, and n is an average value of not less than 2 and preferably between 4 and 50, the number of carbon atoms in each identical or different repeated unit being at least equal to 4.
Claim 9
Dependent Claim
32 words
Use according to Claim 6, characterised in that the oligomeric polyether is polytetrahydrofuran dimethyl ether corresponding to the following formula: in which n is an average value of between 4 and 10.
Claim 10
Dependent Claim
155 words
Essentially anhydrous hydrogen peroxide solution in at least one organic solvent, characterised in that the said solvent essentially consists of an oligomeric polyether of formula: in which: R denotes a linear or branched alkyl radical having from 1 to 12 carbon atoms, R 1' R 2 , R 3 and R 4 , which may be identical or different, denote a hydrogen atom or an alkyl radical having from 1 to 6 carbon atoms, at least two of the radicals R 1' R 2 , R 3 or R 4 denoting a hydrogen atom, m is 1 to 4, and n is an average value of not less than 2 and preferably between 4 and 50, the number of carbon atoms in each identical or different repeated unit being at least equal to 4, the said solution containing from 0.1 to 20% by weight of hydrogen peroxide and less than 1% by weight of water.
Claim 11
Dependent Claim
155 words
Essentially anhydrous hydrogen peroxide solution in at least one organic solvent, characterised in that the said solvent essentially consists of an oligomeric polyether of formula: in which: R denotes a linear or branched alkyl radical having from 1 to 12 carbon atoms, R 1' R 2 , R 3 and R 4 , which may be identical or different, denote a hydrogen atom or an alkyl radical having from 1 to 6 carbon atoms, at least two of the radicals R 1' R 2 , R 3 or R 4 denoting a hydrogen atom, m is 1 to 4, and n is an average value of not less than 2 and preferably between 4 and 50, the number of carbon atoms in each identical or different repeated unit being at least equal to 4, the said solution containing from 0.1 to 20% by weight of hydrogen peroxide and less than 1% by weight of water.
Claim 12
Dependent Claim
55 words
Essentially anhydrous solution according to Claim 8, characterised in that the said oligomeric polyether is polytetrahydrofuran dimethyl ether of formula: in which: n is an average value of between 4 and 10, the said solution having a hydrogen peroxide content of between 1 and 10% by weight and a water content of less than 0.5%.
References Cited (Backward Citations)
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