US5705145A
Expired / Lapsed
US
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Skin tanning compositions and method
Assignee: EL Management LLC
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Filing: 1996-08-21
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Granted: 1998-01-06
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Expires: 2016-08-21
Abstract
Abstract Disclosed are cosmetic compositions for providing an artificial tan to skin which comprise dihydroxyacetone and an azole in a cosmetically or pharmaceutically acceptable carrier. Also disclosed is a method for providing an artificial tan to skin which comprises applying dihydroxyacetone and an azole to the skin.
Inventors
- 👤 Saul Miklean
- 👤 Konstantinos M. Lahanas
- 👤 Nicolae Vrabie
- 👤 Edward Pelle
- 👤 Andrew J. Bevacqua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:22
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/49; A61K8/494; A61K8/4946; A61Q; A61Q19/00; A61Q19/04
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
89 words
A skin tanning composition which comprises: (a) dihydroxyacetone; (b) an azole having the structure ##STR5## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl; and (c) a cosmetically or pharmaceutically acceptable carrier.
Claim 2
Dependent Claim
89 words
A skin tanning composition which comprises: (a) dihydroxyacetone; (b) an azole having the structure ##STR5## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl; and (c) a cosmetically or pharmaceutically acceptable carrier.
Claim 3
Dependent Claim
29 words
The skin tanning composition of claim 1 wherein the dihydroxyacetone is present in an amount of from about 1 to about 20 percent by weight of the total composition.
Claim 4
Dependent Claim
29 words
The skin tanning composition of claim 2 wherein the dihydroxyacetone is present in an amount of from about 3 to about 5 percent by weight of the total composition.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein the azole is present in an amount of from about 1.5 to about 7.5 percent by weight of the total composition.
Claim 6
Dependent Claim
27 words
The composition of claim 4 wherein the azole is present in an amount of from about 1.5 to about 2 percent by weight of the total composition.
Claim 7
Dependent Claim
10 words
The composition of claim 1 wherein X=NR 1 or S.
Claim 8
Dependent Claim
17 words
The composition of claim 6 wherein R 1 , R 2 , and R 3 are hydrogen.
Claim 9
Dependent Claim
10 words
The composition of claim 7 wherein R 4 is hydrogen.
Claim 10
Dependent Claim
14 words
The composition of claim 7 wherein R 4 is --CH 2 --CH(COOH)NH 2 .
Claim 11
Dependent Claim
10 words
The composition of claim 7 wherein R 4 is phenyl.
Claim 12
Dependent Claim
10 words
The composition of claim 1 additionally comprising an organic acid.
Claim 13
Dependent Claim
19 words
The composition of claim 11 wherein the organic acid is selected from the group consisting of alpha-hydroxyacids and beta-hydroxyacids.
Claim 14
Dependent Claim
21 words
The composition of claim 11 wherein the organic acid is selected from the group consisting of citric acid and salicylic acid.
Claim 15
Dependent Claim
35 words
The composition of claim 11 wherein the organic acid is present in an amount by weight of the total composition sufficient to lower the pH of the composition to from about 3 to about 5.
Claim 16
Dependent Claim
24 words
The composition of claim 11 wherein the organic acid is present in an amount of about 5 percent by weight of the total composition.
Claim 17
Dependent Claim
9 words
The composition of claim 1 additionally comprising an antioxidant.
Claim 18
Dependent Claim
12 words
The composition of claim 16 wherein the antioxidant is green tea extract.
Claim 19
Dependent Claim
16 words
The composition of claim 1 wherein the cosmetically or pharmaceutically acceptable carrier is a hydroalcoholic solution.
Claim 20
Dependent Claim
16 words
The composition of claim 1 wherein the cosmetically or pharmaceutically acceptable carrier is an oil-in-water emulsion.
Claim 21
Dependent Claim
10 words
The composition of claim 19 wherein the emulsion is nonionic.
Claim 22
Dependent Claim
11 words
The composition of claim 1 additionally comprising a colloidal mineral dispersion.
Claim 23
Dependent Claim
30 words
The composition of claim 21 wherein the colloidal dispersion contains ions derived from elements selected from the group consisting of sodium, calcium, titanium, rubidium, lanthanum, yttrium, vanadium, cerium and neodymium.
Claim 24
Dependent Claim
9 words
The composition of claim 1 additionally comprising a sunscreen.
Claim 25
Dependent Claim
146 words
A skin tanning composition which comprises: (a) from about 1.0 to about 20 percent by weight of the total composition of dihydroxyacetone; (b) from about 1.5 to about 7.5 percent by weight of the total composition of an azole having the structure ##STR6## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl; (c) an organic acid present in an amount by weight of the total composition sufficient to lower the pH of the composition to from about 3 to about 5; and (d) a cosmetically or pharmaceutically acceptable carrier.
Claim 26
Dependent Claim
146 words
A skin tanning composition which comprises: (a) from about 1.0 to about 20 percent by weight of the total composition of dihydroxyacetone; (b) from about 1.5 to about 7.5 percent by weight of the total composition of an azole having the structure ##STR6## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl; (c) an organic acid present in an amount by weight of the total composition sufficient to lower the pH of the composition to from about 3 to about 5; and (d) a cosmetically or pharmaceutically acceptable carrier.
Claim 27
Dependent Claim
10 words
The composition of claim 24 wherein X=NR 1 or S.
Claim 28
Dependent Claim
17 words
The composition of claim 25 wherein R 1 , R 2 , and R 3 are hydrogen.
Claim 29
Dependent Claim
10 words
The composition of claim 26 wherein R 4 is hydrogen.
Claim 30
Dependent Claim
13 words
The composition of claim 26 wherein R 4 is--CH 2 --CH(COOH)NH 2 .
Claim 31
Dependent Claim
10 words
The composition of claim 26 wherein R 4 is phenyl.
Claim 32
Dependent Claim
11 words
The composition of claim 24 additionally comprising a colloidal mineral dispersion.
Claim 33
Dependent Claim
30 words
The composition of claim 30 wherein the colloidal dispersion contains ions derived from elements selected from the group consisting of sodium, calcium, titanium, rubidium, lanthanum, yttrium, vanadium, cerium and neodymium.
Claim 34
Independent Claim
87 words
A method for artificially tanning human skin which comprises applying to the skin dihydroxyacetone and an azole having the structure ##STR7## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl.
Claim 35
Independent Claim
87 words
A method for artificially tanning human skin which comprises applying to the skin dihydroxyacetone and an azole having the structure ##STR7## wherein X=S, O, or NR 1 , and R 1 through R 4 can be the same or different and are hydrogen; phenyl; C 1 -C 6 alkyl unsubstituted or substituted by phenyl, hydroxyl, carboxy, benzyloxy, amino, halogen, carboxylic acid, sulfonate or phosphonate; or --CH 2 --CH(COOR')NR"R"' where R', R" and R"' are the same or different and are hydrogen or C 1 -C 4 alkyl.
Claim 36
Dependent Claim
18 words
The method of claim 32 wherein the dihydroxyacetone and the azole are substantially simultaneously applied to the skin.
Claim 37
Dependent Claim
17 words
The method of claim 32 wherein the dihydroxyacetone and the azole are sequentially applied to the skin.
Claim 38
Dependent Claim
21 words
The method of claim 34 wherein the azole is applied to the skin before the dihydroxyacetone is applied to the skin.
Claim 39
Dependent Claim
22 words
The method of claim 32 wherein X=NR 1 and R 1 , R 2 , R 3 and R 4 are hydrogen.
Claim 40
Dependent Claim
18 words
A method for artificially tanning human skin which comprises applying to the skin the composition of claim 1.
Claim 41
Dependent Claim
18 words
A method for artificially tanning human skin which comprises applying to the skin the composition of claim 24.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-01-05 | 2001-07-07 | 2002-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-05 | 2005-07-07 | 2006-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-05 | 2009-07-07 | 2010-01-06 | $7700.00 | Window Closed / Lapsed |