US5420118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel type cosmetic compositions
Assignee: Richardson Vicks Inc
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Filing: 1993-05-27
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Granted: 1995-05-30
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Expires: 2013-05-27
Abstract
Abstract A skin care composition in the form of a substantially oil-free aqueous gel comprising a water-soluble humectant, a hydrophilic gelling agent and a specific silicone component. The compositions provide improved skin feel and residue characteristics together with excellent moisturizing, emolliency, rub-in and absorption characteristics.
Inventors
- 👤 Noelle C. Alban
- 👤 George E. Deckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:54
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61K8/892; A61K8/02; A61K8/04; A61K8/042; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q19/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
133 words
A skin care composition in the form of a substantially oil-free aqueous gel comprising: (a) from about 0.5% to about 20% by weight of a water-soluble humectant; (b) from about 0.1% to about 20% by weight of a hydrophilic gelling agent; and (c) from about 1.0% to about 10% by weight of a silicone component consisting essentially of i) a silicone gum having a molecular weight of from about 200,000 to about 540,000 selected from the group consisting of dimethiconol, fluorosilicone and dimethicone or mixtures thereof; and ii) a silicone-based carrier having a viscosity from about 0.65 cps. to about 100 cps, wherein the ratio of i) to ii) is from about 10:90 to about 20:80 and wherein said component has a final viscosity of from about 500 cps. to about 10,000 cps.
Claim 2
Dependent Claim
133 words
A skin care composition in the form of a substantially oil-free aqueous gel comprising: (a) from about 0.5% to about 20% by weight of a water-soluble humectant; (b) from about 0.1% to about 20% by weight of a hydrophilic gelling agent; and (c) from about 1.0% to about 10% by weight of a silicone component consisting essentially of i) a silicone gum having a molecular weight of from about 200,000 to about 540,000 selected from the group consisting of dimethiconol, fluorosilicone and dimethicone or mixtures thereof; and ii) a silicone-based carrier having a viscosity from about 0.65 cps. to about 100 cps, wherein the ratio of i) to ii) is from about 10:90 to about 20:80 and wherein said component has a final viscosity of from about 500 cps. to about 10,000 cps.
Claim 3
Dependent Claim
39 words
A composition according to claim 1 wherein the silicone gum component is a dimethiconol of the formula: ##STR7## where n is from about 2700 to about 4500, and wherein the molecular weight is from about 200,000 to about 300,000.
Claim 4
Dependent Claim
30 words
A composition according to claim 2 wherein the dimethiconol component has a molecular weight of from about 240,000 to about 260,000 and n is from about 3200 to about 4300.
Claim 5
Dependent Claim
25 words
A composition according to claim 3 wherein the dimethiconol has a molecular weight of about 250,000 and n is from about 4000 to about 4300.
Claim 6
Dependent Claim
34 words
A composition according to claim 4 wherein the silicone-based carrier is an essentially non-volatile silicone fluid selected from the group consisting of polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, and polyether siloxanes and mixtures thereof.
Claim 7
Dependent Claim
52 words
A composition according to claim 5 which further comprises from 0.1% to 10% by weight of a water-soluble polyglycerylmethacrylate lubricant having a viscosity of less than 30,000 cps. as measured in a 10% aqueous solution at 20° C. using a Brookfield RVT; and comprising from 1% to 10% by weight of glycerine.
Claim 8
Dependent Claim
27 words
A composition according to claim 6 wherein the polyglycerylmethacrylate lubricant is a hydrate or clathrate formed by the reaction of sodium glycerate with a methacrylic acid polymer.
Claim 9
Dependent Claim
34 words
A composition according to claim 7 wherein the hydrophilic gelling agent is present at a level of from about 0.2% to about 2% and has a neutralized viscosity of at least about 10,000 cps.
Claim 10
Dependent Claim
17 words
A composition according to claim 8 comprising from 0.3% to 1% by weight of the polyglycerylmethacrylate lubricant.
Claim 11
Dependent Claim
25 words
A composition according to claim 9 having a viscosity of from 4000 to 300,000 cps. as measured neat at 20° C. using a Brookfield RVT.
Claim 12
Dependent Claim
33 words
A composition according to claim 10 wherein the gelling agent has a neutralized viscosity of at least 50,000 cps. as measured as a 1% aqueous solution at 20° C. using a Brookfield RVT.
Claim 13
Dependent Claim
35 words
A composition according to claim 11 wherein the gelling agent is a carboxylic acid copolymer of acrylic acid cross-linked with from 0.75% to 2% of a cross-linking agent selected from polyallyl sucrose and polyallyl pentaerythritol.
Claim 14
Dependent Claim
31 words
A composition according to claim 12 wherein the carboxylic acid copolymer is selected from the group consisting of Carbomer 941, Carbomer 951, Carbomer 980, Carbomer 981, Carbomer 1342, and mixtures thereof.
Claim 15
Dependent Claim
22 words
A composition according to claim 1 wherein said gel further comprises from about 0.1% to about 20% of a topical pharmaceutical active.
Claim 16
Dependent Claim
22 words
A composition according to claim 5 wherein said gel further comprises from about 0.1 to about 2,0% of a topical pharmaceutical active.
Claim 17
Dependent Claim
22 words
A composition according to claim 11 wherein said gel further comprises from about 0.1% to about 20% of a topical pharmaceutical active.
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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) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |