Patent EP0356119A1 successfully refreshed from Google Patents.
EP0356119A1
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EP
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Skin tanning composition and method
Assignee: Bristol Myers Co
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Filing: 1989-08-16
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Granted: —
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Expires: 2009-08-16
Abstract
Abstract The present invention relates to a method of imparting a controlled tanning of skin by treating the skin with an aqueous medium containing melanin or a precursor of melanin.
Inventors
- 👤 Leszek Wolfram
- 👤 Thomas M. Schultz
- 👤 Alexander C. Chan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 07:30
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; A61K8/492; A61K8/40; A61K8/44; A61Q; A61Q19/00; A61Q19/04
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
51 words
A process for imparting a controlled tanning to skin which comprises contacting the skin prior to exposure of same to ultraviolet radiation with a composition substantially free of added enzyme and containing at least one compound which is a tanning agent and which is a melanin precursor or melanin precursor-like material.
Claim 2
Dependent Claim
51 words
A process for imparting a controlled tanning to skin which comprises contacting the skin prior to exposure of same to ultraviolet radiation with a composition substantially free of added enzyme and containing at least one compound which is a tanning agent and which is a melanin precursor or melanin precursor-like material.
Claim 3
Dependent Claim
35 words
The process according to claim 1, wherein the composition is a lotion and the melanin precursor is present in an amount of 0.1 to 10 by weight, based on the total weight of the composition.
Claim 4
Dependent Claim
35 words
The process according to claim 1, wherein the composition is a creme and the melanin precursor is present in an amount of 0.1 to 10% by weight, based on the total weight of the composition.
Claim 5
Dependent Claim
26 words
The process according to claim 2, wherein the melanin precursors is at least one selected from the group consisting of 3,4-dihydroxyphenalalanine, 5,6-dihydroxyindole, N-alkyl-5,6-dihydroxyindole and derivatives thereof.
Claim 6
Dependent Claim
12 words
The process according to claim 3, wherein the melanin precursor is 5,6-methylenedioxyindole.
Claim 7
Dependent Claim
23 words
The process of claim 4, wherein the exposure to ultraviolet radiation is for a period of from about 2 to about 30 minutes.
Claim 8
Dependent Claim
23 words
The process of claim 5, wherein the exposure to ultraviolet radiation is for a period of from about 2 to about 30 minutes.
Claim 9
Dependent Claim
21 words
The process according to claim 5 wherein the tanning agent is a melanin precursor selected from 5,6- dihydroxyindole and its derivatives.
Claim 10
Dependent Claim
20 words
The process according to claim 6 wherein the tanning agent is a melanin precursor selected from N-alkyl-5,6-dihydroxyindole and its derivatives.
Claim 11
Dependent Claim
12 words
The process according to claim 6 wherein the tanning agent is 5,6-methylenedioxyindole.
Claim 12
Dependent Claim
47 words
A tanning composition containing at least one tanning agent selected from the group consisting of melanin precursors and melanin precursor like materials, said tanning composition being substantially free of added enzyme whereby upon application of the composition to skin, color is preferentially generated in the stratum corneum.
Claim 13
Dependent Claim
47 words
A tanning composition containing at least one tanning agent selected from the group consisting of melanin precursors and melanin precursor like materials, said tanning composition being substantially free of added enzyme whereby upon application of the composition to skin, color is preferentially generated in the stratum corneum.
Claim 14
Dependent Claim
12 words
The composition according to claim 11 wherein the tanning agent is 5,6-methylenedioxyindole.
Claim 15
Dependent Claim
12 words
The composition according to claim 11 wherein the tanning agent is 5,6-dihydroxy-N-methylindole.
Claim 16
Dependent Claim
13 words
The composition according to claim 11 wherein the tanning agent is 5,6-dihydroxyindole-2-carboxylic acid.
Claim 17
Dependent Claim
23 words
The composition according to claim 11 wherein the tanning agent is selected from the group consisting of 2-cysteinyl-DOPA, 5-cysteinyl-DOPA, 2,5-dicysteinyl-DOPA, and mixtures thereof.
Claim 18
Dependent Claim
13 words
The composition according to claim 11 wherein the tanning agent is an N-alkyl-5,6-dihydroxyindole.
Claim 19
Dependent Claim
12 words
The composition according to claim 11 wherein the tanning agent is 3,4-dihydroxyphenylalanine.
Claim 20
Dependent Claim
23 words
The composition according to claim 12 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 21
Dependent Claim
23 words
The composition according to claim 13 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 22
Dependent Claim
23 words
The composition according to claim 14 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 23
Dependent Claim
23 words
The composition according to claim 15 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 24
Dependent Claim
23 words
The composition according to claim 16 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 25
Dependent Claim
23 words
The composition according to claim 17 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 26
Dependent Claim
104 words
A cosmetic composition designed to impart to the skin a coloring which is substantially similar to natural tanning, characterized in that it contains, in a cosmetically acceptable base suitable for topical application, at least one compound of formula I: in which R₁ denotes a hydrogen atom or an alkyl group; R₂ denotes a hydrogen atom, or a carboxyl group, or a carboxy ester group; and R₃ and R₄ each denote hydrogen or methyl groups; or R₃ and R₄ together represent a methylene group which is necessary to complete a 5-membered heterocyclic ring, or R₃ and R₄ are ester groups existing in a ring structure.
Claim 27
Dependent Claim
104 words
A cosmetic composition designed to impart to the skin a coloring which is substantially similar to natural tanning, characterized in that it contains, in a cosmetically acceptable base suitable for topical application, at least one compound of formula I: in which R₁ denotes a hydrogen atom or an alkyl group; R₂ denotes a hydrogen atom, or a carboxyl group, or a carboxy ester group; and R₃ and R₄ each denote hydrogen or methyl groups; or R₃ and R₄ together represent a methylene group which is necessary to complete a 5-membered heterocyclic ring, or R₃ and R₄ are ester groups existing in a ring structure.
Claim 28
Dependent Claim
28 words
A composition according to claim 21 wherein the compounds are of formula II: wherein R₅ and R₆ are each hydrogen or together are part of a cysteinyl group.
Claim 29
Dependent Claim
20 words
The compositions of claim 24 containing from about 0.1 to about 10% by weight of the compound of formula I.
Claim 30
Dependent Claim
18 words
The composition of claim 24 which also contains at least one ingredient selected from carriers, emollients, and perfumes.
Claim 31
Dependent Claim
17 words
The composition of claim 24 wherein the cosmetic base contains at least one of ethanol and isopropanol.
Claim 32
Dependent Claim
13 words
The composition of claim 24 in the form of a lotion or gel.
Claim 33
Dependent Claim
35 words
A process for coloring skin to impart a coloring which is substantially similar to natural tanning comprising the steps of contracting the skin with at least one composition defined in any one of claims 11-25.
References Cited (Backward Citations)
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