US5284649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorant gel sticks containing 1-hydroxy pyridinethione active
Assignee: Procter and Gamble Co
•
Filing: 1992-09-29
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Granted: 1994-02-08
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Expires: 2012-09-29
Abstract
Abstract Deodorant gel stick compositions, which are essentially free of water, comprising a heavy metal salt of 1-hydroxy pyridinethione as the deodorant active, a gelling agent, and a solvent system (preferably a polar solvent) are disclosed. These compositions have minimized component interactions, active component stability, and are excellent in the prevention of body malodors. Preferred compositions utilize zinc pyrithione as the deodorant active, and contain less than about 1% water. Other standard deodorant components may be included in compositions for cosmetic purposes.
Inventors
- 👤 Prem S. Juneja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/0229; A61K8/04; A61K8/042; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4933; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
71 words
A stable gel stick deodorant composition, essentially free of water, comprising: (a) an effective amount of a heavy metal salt of 1-hydroxy-pyridinethione as the deodorant active; (b) from about 3% to about 20% of a gelling agent selected from the group consisting of sodium and potassium salts of C 12 -C 18 fatty acids, and mixtures thereof; and system. (c) from about 7% to about 95% of a polar solvent system.
Claim 2
Dependent Claim
71 words
A stable gel stick deodorant composition, essentially free of water, comprising: (a) an effective amount of a heavy metal salt of 1-hydroxy-pyridinethione as the deodorant active; (b) from about 3% to about 20% of a gelling agent selected from the group consisting of sodium and potassium salts of C 12 -C 18 fatty acids, and mixtures thereof; and system. (c) from about 7% to about 95% of a polar solvent system.
Claim 3
Dependent Claim
20 words
A composition according to claim 1 wherein the deodorant active comprises from about 0.01% to about 0.25% of the composition.
Claim 4
Dependent Claim
13 words
A composition according to claim 2 wherein the deodorant active is zinc pyrithione.
Claim 5
Dependent Claim
20 words
A composition according to claim 3 wherein the deodorant active comprises from about 0.01% to about 0.10% of the composition.
Claim 6
Dependent Claim
20 words
A composition according to claim 4 wherein the deodorant active comprises from about 0.02% to about 0.075% of the composition.
Claim 7
Dependent Claim
24 words
A composition according to claim 2 wherein the gelling agent is selected from the group consisting of sodium stearate, potassium stearate, and mixtures thereof.
Claim 8
Dependent Claim
13 words
A composition according to claim 6 wherein the deodorant active is zinc pyrithione.
Claim 9
Dependent Claim
13 words
A composition according to claim 6 wherein the gelling agent is sodium stearate.
Claim 10
Dependent Claim
20 words
A composition according to claim 2 wherein the gelling agent comprises from about 5% to about 8% of the composition.
Claim 11
Dependent Claim
20 words
A composition according to claim 9 wherein the gelling agent comprises from about 5.5% to about 6% of the composition.
Claim 12
Dependent Claim
41 words
A composition according to claim 2 wherein the polar solvent system is selected from the group consisting of C 2 -C 9 monohydric, dihydric, and polyhydric alcohols, propylene carbonate, 3-methyl-2-oxazolidinone, ethyleneoxide polymers which are liquid at room temperature, and mixture thereof.
Claim 13
Dependent Claim
48 words
A composition according to claim 11 wherein the polar solvent system is selected from the group consisting of ethanol, methanol, isopropanol, ethylene glycol, triethylene glycol, trimethylene glycol, tetraethylene glycol, propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol, tripropylene glycol, glycerin, propylene carbonate, 3-methyl-2-oxazolidinone, PEG-400, and any mixture thereof.
Claim 14
Dependent Claim
13 words
A composition according to claim 12 wherein the deodorant active is zinc pyrithione.
Claim 15
Dependent Claim
24 words
A composition according to claim 12 wherein the polar solvent system is selected from the group consisting of dipropylene glycol, ethanol, and mixtures thereof.
Claim 16
Dependent Claim
13 words
A composition according to claim 14 wherein polar solvent system is dipropylene glycol.
Claim 17
Dependent Claim
21 words
A composition according to claim 14 wherein the polar solvent system comprises from about 30% to about 90% of the composition.
Claim 18
Dependent Claim
21 words
A composition according to claim 16 wherein the polar solvent system comprises from about 40% to about 80% of the composition.
Claim 19
Dependent Claim
16 words
A composition according to claim 11 wherein water comprises less than about 3% of the composition.
Claim 20
Dependent Claim
16 words
A composition according to claim 18 wherein water comprises less than about 1% of the composition.
Claim 21
Dependent Claim
52 words
A composition according to claim 18 comprising: (a) from about 0.02% to about 0.075% of zinc pyrithione; (b) from about 3% to about 10% of sodium stearate; and (c) from about 30% to about 90% of a polar solvent system selected from the group consisting of dipropylene glycol, ethanol and mixtures thereof.
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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) | 1997-02-07 | 1997-08-09 | 1998-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-07 | 2001-08-09 | 2002-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-07 | 2005-08-09 | 2006-02-08 | $7700.00 | Window Closed / Lapsed |