US5229104A
Expired / Lapsed
US
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Artificial tanning compositions containing positively charged paucilamellar vesicles
Assignee: Bayer Consumer Care Holdings LLC
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Filing: 1991-04-29
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Granted: 1993-07-20
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Expires: 2011-04-29
Abstract
Abstract The present invention relates to oil-in-water emulsion compositions useful for imparting an artificial tan to human skin. These emulsions contain paucilamellar lipid vesicles, i.e. vesicles comprising several concentric lipid bilayers, encapsulating an aqueous dihydroxyacetone solution. The vesicles comprise a polyoxyalkylene alkyl ether, a sterol, a quaternary ammonium compound, and optionally, a non-surface active oil. 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. The present invention also relates to methods for preparing these compositions, methods for providing an artificial tan to human skin, and methods for protecting human skin from the harmful effects of ultraviolet radiation.
Inventors
- 👤 John P. Sottery
- 👤 George E. Deckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:21
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/04; A61K; A61K8/00; A61K8/02; A61K8/14; A61K8/18; A61K8/30; A61K8/33; A61K8/35
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
135 words
An artificial tanning oil-in-water emulsion composition having a pH from about 2.5 to about 7, comprising: (a) from about 1% to about 50% of an oil phase; (b) from about 0.1% to about 10% of at least one emulsifier; (c) from about 0.1% to about 5% of at least one thickener; (d) from about 10% to about 95% of an aqueous phase; (e) from about 0.1% to about 20% of dihydroxyacetone; and (f) from about 0.1% to about 20% on a dry weights basis of paucilamellar liposomal vesicles having a diameter of from about 100 nm to about 500 nm, said vesicles being dispersed in the aqueous phase (d) and wherein said vesicles comprise a polyoxyalkylene alkyl ether, a sterol, and a quaternary ammonium compound and further wherein said vesicles encapsulate an internal aqueous phase.
Claim 2
Dependent Claim
135 words
An artificial tanning oil-in-water emulsion composition having a pH from about 2.5 to about 7, comprising: (a) from about 1% to about 50% of an oil phase; (b) from about 0.1% to about 10% of at least one emulsifier; (c) from about 0.1% to about 5% of at least one thickener; (d) from about 10% to about 95% of an aqueous phase; (e) from about 0.1% to about 20% of dihydroxyacetone; and (f) from about 0.1% to about 20% on a dry weights basis of paucilamellar liposomal vesicles having a diameter of from about 100 nm to about 500 nm, said vesicles being dispersed in the aqueous phase (d) and wherein said vesicles comprise a polyoxyalkylene alkyl ether, a sterol, and a quaternary ammonium compound and further wherein said vesicles encapsulate an internal aqueous phase.
Claim 3
Dependent Claim
28 words
The emulsion composition according to claim 1 wherein said paucilamellar liposomal vesicles comprise on a dry weights basis from about 1% to about 10% of the emulsion composition.
Claim 4
Dependent Claim
28 words
The emulsion composition according to claim 2 wherein said paucilamellar liposomal vesicles comprise on a dry weights basis from about 3% to about 4% of the emulsion composition.
Claim 5
Dependent Claim
38 words
The emulsion composition according to claim 3 wherein said polyoxyalkylene alkyl ether has the structure R--O--(CH.sub.2 --CH.sub.2 --O).sub.n --H where R is C 10 -C 20 alkyl and n is an integer ranging from 1 to about 8.
Claim 6
Dependent Claim
37 words
The emulsion composition according to claim 4 wherein said polyoxyalkylene alkyl ether is selected from the group consisting of Ceteth-2, Ceteth-4, Ceteth-5, Ceteth-6, Laureth-1, Laureth-2, Laureth-3, Steareth-2, Steareth-4, Steareth-6, Ceteareth-2, Ceteareth-3, Ceteareth-4, Ceteareth-5, Ceteareth-6, and mixtures thereof.
Claim 7
Dependent Claim
14 words
The emulsion composition according to claim 5 wherein said polyoxyalkylene alkyl ether is Ceteth-2.
Claim 8
Dependent Claim
12 words
The emulsion composition according to claim 6 wherein said sterol is cholesterol.
Claim 9
Dependent Claim
44 words
The emulsion composition according to claim 7 wherein said quaternary ammonium compound is selected from the group consisting of Quaternium-14, Quaternium-18, Quaternium-18 Methosulfate, cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium tosylate, lauryl pyridinium chloride, cetyl pyridinium chloride, and mixtures thereof.
Claim 10
Dependent Claim
35 words
The emulsion composition according to claim 8 wherein said quaternary ammonium compound is selected from the group consisting of Quaternium-18, Quaternium-18 Methosulfate, dicetyldimonium chloride, distearyl dimethyl ammonium chloride, ditallow dimethyl ammonium chloride, and mixtures thereof.
Claim 11
Dependent Claim
14 words
The emulsion composition according to claim 9 wherein said quaternary ammonium compound is Quaternium-18.
Claim 12
Dependent Claim
70 words
The emulsion composition according to claim 10 wherein said emulsifier is selected from the group consisting of esters of glycerin, esters of propylene glycol, fatty acid esters of polyethylene glycol, fatty acid esters of polypropylene glycol, esters of sorbitol, esters of sorbitan anhydrides, carboxylic acid copolymers, esters and ethers of glucose, ethoxylated ethers, ethoxylated alcohols, alkyl phosphates, polyoxyethylene fatty ether phosphates, fatty acid amides, acyl lactylates, soaps and mixtures thereof.
Claim 13
Dependent Claim
76 words
The emulsion composition according to claim 11 wherein said emulsifier is selected from the group consisting of polyethylene glycol 20 sorbitan monolaurate (Polysorbate 20), polyethylene glycol 5 soya sterol, Steareth-20, Ceteareth-20, Ceteth-10, Polysorbate 80, cetyl phosphate, potassium cetyl phosphate, diethanolamine cetyl phosphate, Polysorbate 60, glyceral stearate, PEG-100 Stearate, PPG-20 methyl glucose ether distearate, Carbomer 954, Carbomer 980, Carbomer 1342, Acrylates/C 10-30 Alkyl Acrylate Crosspolymer (Pemulen TR1), Acrylates/C 10-30 Alkyl Acrylate Crosspolymer (Pemulen TR2), and mixtures thereof.
Claim 14
Dependent Claim
36 words
The emulsion according to claim 12 wherein said thickener is selected from the group consisting of xanthan gum, magnesium aluminum silicate, guar gum, kelp, algin and alginate salts, hydroxypropylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylcellulose, ethylcellulose, and mixtures thereof.
Claim 15
Dependent Claim
21 words
The emulsion composition according to claim 13 wherein said dihydroxyacetone comprises from about 2% to about 7% of the emulsion composition.
Claim 16
Dependent Claim
21 words
The emulsion composition according to claim 14 wherein said dihydroxyacetone comprises from about 3% to about 5% of the emulsion composition.
Claim 17
Dependent Claim
19 words
The emulsion composition according to claim 15 wherein said composition has a pH from about 3 to about 6.
Claim 18
Dependent Claim
19 words
The emulsion composition according to claim 16 wherein said composition has a pH from about 3 to about 4.5.
Claim 19
Dependent Claim
82 words
The emulsion composition according to claim 17 wherein said composition further comprises from about 0.5% to about 20% of at least one sunscreen agent selected from the group consisting of ethylhexyl-p-methoxycinnamate, octyl salicylate, octocrylene, 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, 4N,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 20
Dependent Claim
29 words
The emulsion composition according to claim 18 wherein said sunscreen agent is selected from the group consisting of ethylhexyl-p-methoxycinnamate, octocrylene, octyl salicylate, 2-phenyl-benzimidazole-5-sulfonic acid, titanium dioxide, and mixtures thereof.
Claim 21
Dependent Claim
24 words
The emulsion composition according to claim 1 wherein said liposomal vesicles further comprise from about 10% to about 50% of a non-surface active oil.
Claim 22
Dependent Claim
19 words
The emulsion composition according to claim 20 wherein said liposomal vesicles comprise about 50% of a non-surface active oil.
Claim 23
Dependent Claim
15 words
The emulsion composition according to claim 21 wherein said non-surface active oil is mineral oil.
Claim 24
Dependent Claim
82 words
The emulsion composition according to claim 22 wherein said composition further comprises from about 0.5% to about 20% of at least one sunscreen agent selected from the group consisting of ethylhexyl-p-methoxycinnamate, octyl salicylate, octocrylene, 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-(2hydroxyethoxy)dibenzoylmethane, titanium dioxide, zinc oxide, and mixtures thereof.
Claim 25
Dependent Claim
29 words
The emulsion composition according to claim 23 wherein said sunscreen agent is selected from the group consisting of ethylhexyl-p-methoxycinnamate, octocrylene, octyl salicylate, 2-phenyl-benzimidazole-5-sulfonic acid, titanium, dioxide, and mixtures thereof.
Claim 26
Dependent Claim
32 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 an emulsion composition according to claim 1.
Claim 27
Dependent Claim
43 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 an emulsion composition according to claim 19.
Claim 28
Dependent Claim
32 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 an emulsion composition according to claim 22.
Claim 29
Dependent Claim
43 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 an emulsion composition according to claim 24.
References Cited (Backward Citations)
US3184388A
Cited
US3272713A
Cited
US3920808A
Cited
US4772471A
Cited
BE843300A
Cited
US4897308A
Cited
US4217344A
Cited
US4145413A
Cited
US4247411A
Cited
US4419343A
Cited
US5154854A
Cited
GB2078543A
Cited
SU992058A1
Cited
US4792331A
Cited
US4830857A
Cited
US4832943A
Cited
GB2189457A
Cited
US4942038A
Cited
US4917951A
Cited
US4853228A
Cited
EP0318369A1
Cited
FR2627385A1
Cited
DD272793A1
Cited
WO1990006747A1
Cited
WO1990007924A1
Cited
CA2009607A1
Cited
EP0382619A1
Cited
EP0409690A1
Cited
EP0424282A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
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