US5318774A
Expired / Lapsed
US
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Composition and method for imparting an artificial tan to human skin
Assignee: Bayer Consumer Care Holdings LLC
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Filing: 1992-02-28
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Granted: 1994-06-07
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Expires: 2012-02-28
Abstract
Abstract The present invention relates to stabilized compositions, preferably in the form of oil-in-water emulsions, for imparting an artificial tan to human skin. The water phase of these compositions contains dihydroxyacetone and at least one alkyl hydroxyalkylcellulose or derivative thereof. The oil phase contains at least one fatty acid or fatty acid derivative. The weight ratio of fatty acid or fatty acid derivative to alkyl hydroxyalkylcellulose is most preferably from about 10:1 to about 5:1. In further embodiments, these emulsion compositions contain one or more sunscreens, and are also useful for protecting human skin from the harmful effects of sunlight and other sources of ultraviolet radiation.
Inventors
- 👤 Noelle C. Alban
- 👤 George E. Deckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:52
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/72; A61K8/73; A61K8/731; A61K2800/00; A61K2800/40; A61K2800/54; A61K2800/542; A61K2800/5422
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
111 words
An artificial tanning composition having improved stability comprising: a water phase and an oil phase (a) wherein said water phase comprises from about 0.1% to about 20% dihydroxyacetone and from about 0.1% to about 5% of at least one alkyl hydroxyalkylcellulose, (b) wherein said oil phase comprises from about 0.5% to about 20% of at least one fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether, and wherein the weight ratio of said fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether to said alkyl hydroxyalkylcellulose is from about 35:1 to about 1:1, and said composition has a pH from about 2.5 to about 6.
Claim 2
Dependent Claim
111 words
An artificial tanning composition having improved stability comprising: a water phase and an oil phase (a) wherein said water phase comprises from about 0.1% to about 20% dihydroxyacetone and from about 0.1% to about 5% of at least one alkyl hydroxyalkylcellulose, (b) wherein said oil phase comprises from about 0.5% to about 20% of at least one fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether, and wherein the weight ratio of said fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether to said alkyl hydroxyalkylcellulose is from about 35:1 to about 1:1, and said composition has a pH from about 2.5 to about 6.
Claim 3
Dependent Claim
17 words
The composition according to claim 1 wherein said weight ratio is from about 15:1 to about 2:1.
Claim 4
Dependent Claim
17 words
The composition according to claim 2 wherein said weight ratio is from about 10:1 to about 5:1.
Claim 5
Dependent Claim
18 words
The composition according to claim 3 wherein said composition has a pH from about 3.5 to about 5.
Claim 6
Dependent Claim
18 words
The composition according to claim 4 wherein said composition has a pH from about 4 to about 4.75.
Claim 7
Dependent Claim
16 words
The composition according to claim 5 wherein said dihydroxyacetone comprises from about 2% to about 7%.
Claim 8
Dependent Claim
16 words
The composition according to claim 6 wherein said dihydroxyacetone comprises from about 3% to about 5%.
Claim 9
Dependent Claim
17 words
The composition according to claim 7 wherein said alkyl hydroxyalkylcellulose comprises from about 0.4% to about 0.6%.
Claim 10
Dependent Claim
27 words
The composition according to claim 8 wherein said fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether comprises from about 4% to about 6%.
Claim 11
Dependent Claim
38 words
The composition according to claim 7 wherein said alkyl hydroxyalkylcellulose is such that the alkyl group contains from about 8 to about 30 carbon atoms and the hydroxyalkyl group contains from about 1 to about 4 carbon atoms.
Claim 12
Dependent Claim
38 words
The composition according to claim 10 wherein said alkyl hydroxyalkylcellulose is such that the alkyl group contains from about 14 to about 18 carbon atoms and the hydroxyalkyl group contains from about 2 to about 3 carbon atoms.
Claim 13
Dependent Claim
13 words
The composition according to claim 11 wherein said alkyl hydroxyalkylcellulose is cetyl hydroxyethylcellulose.
Claim 14
Dependent Claim
99 words
The composition according to claim 12 wherein said fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether is selected from the group consisting of C10 to C30 fatty acids; C10 to C30 fatty acid alcohols; C10 to C30 ethoxylated and propoxylated fatty acid alcohols; esters of C10 to C30 fatty acids with C1 to C30 alcohols; ethoxylated and propoxylated esters of C10 to C30 fatty acids with C1 to C30 alcohols; C10 to C30 mono-, di-, and triglycerides; C10 to C30 fatty acid ethers; ethoxylated and propoxylated C10 to C30 fatty acid ethers; and mixtures thereof.
Claim 15
Dependent Claim
47 words
The composition according to claim 13 wherein said fatty acid, fatty acid alcohol, fatty acid ester, or fatty acid ether is selected from cetyl alcohol, stearyl alcohol, ceteareth-10, ceteareth-12, ceteareth-20, steareth-10, steareth-16, steareth-20, glyceryl stearate, PPG-15 stearyl ether, PPG-3 myristyl ether, PPG-10 cetyl ether, and mixtures thereof.
Claim 16
Dependent Claim
83 words
The composition according to claim 14 wherein said composition further comprises from about 0.5% to about 20% of at least one sunscreening agent selected from the group consisting of ethylhexyl p-methoxycinnamate, octyl salicylate, octocrylene, oxybenzone, 2-ethylhexyl N,N-dimethylaminobenzoate, 2-Phenyl-benzimidazole-5-sulfonic acid, 4-N,N-(2-ethylhexyl)methylaminobenzoic acid ester of 2,4-dihydroxybenzophenone, N,N-di-(2-ethylhexyl)-4-aminobenzoic acid ester with 4-hydroxydibenzoylmethane, 4-N,N(2-ethylhexyl) methylaminobenzoic acid ester with 4-hydroxydibenzoylmethane, 4-N,N-(2-ethylhexyl)methylaminobenzoic acid ester of 2-hydroxy-4-(2-hydroxyethoxy)benzophenone, 4-N,N-(2-ethylhexyl) methylaminobenzoic acid ester of 4-(2-hydroxyethoxy)dibenzoylmethane, N-N-di-(2-ethylhexyl)-4-aminobenzoic acid ester of 2-hydroxy-4-(2-hydroxyethoxy)benzophenone, N,N-di-(2-ethylhexyl)4-aminobenzoic acid ester of 4-(2-hydroxyethoxy)dibenzoylmethane, titanium dioxide, zinc oxide, and mixtures thereof.
Claim 17
Dependent Claim
28 words
The composition according to claim 15 wherein said sunscreening agent is selected from the group consisting of ethylhexyl p-methoxycinnamate, octocrylene, octyl salicylate, oxybenzone, titanium dioxide, and mixtures thereof.
Claim 18
Dependent Claim
31 words
A method for providing an artificial tan to human skin, said method comprising topically applying to the skin of the human an effective amount of a composition according to claim 1.
Claim 19
Dependent Claim
31 words
A method for providing an artificial tan to human skin, said method comprising topically applying to the skin of the human an effective amount of a composition according to claim 14.
Claim 20
Dependent Claim
42 words
A method for providing both an artificial tan to human skin and protecting human skin from the effects of ultraviolet radiation, said method comprising topically applying to the skin of the human an effective amount of a composition according to claim 15.
Claim 21
Dependent Claim
42 words
A method for providing both an artificial tan to human skin and protecting human skin from the effects of ultraviolet radiation, said method comprising topically applying to the skin of the human an effective amount of a composition according to claim 16.
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