US5380528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone containing skin care compositions having improved oil control
Assignee: Richardson Vicks Inc
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Filing: 1993-09-15
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Granted: 1995-01-10
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Expires: 2013-09-15
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, a specific silicone component and a specific cationic surfactant component. The compositions provide improved oil control along with 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
2026-11-08 11:09
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61K8/84; A61K8/89; A61K8/891; A61K8/892; A61Q; A61Q19/00; A61Q19/008
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
177 words
A skin care composition in the form of an aqueous gel containing less than about 1% of a hydrocarbon oil or wax 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; (c) from about 1.0% to about 10% by weight of a silicone component consisting essentially of i) 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; and ii) a silicone fluid 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.; and (d) from about 0.01 to about 5% of a cationic N,N,N-trialkylaminoalkylene gluconamide surfactant of the formula ##STR8## wherein R=alkyl, X=Cl - or Br - , and n is an integer from 2 to 4.
Claim 2
Dependent Claim
177 words
A skin care composition in the form of an aqueous gel containing less than about 1% of a hydrocarbon oil or wax 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; (c) from about 1.0% to about 10% by weight of a silicone component consisting essentially of i) 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; and ii) a silicone fluid 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.; and (d) from about 0.01 to about 5% of a cationic N,N,N-trialkylaminoalkylene gluconamide surfactant of the formula ##STR8## wherein R=alkyl, X=Cl - or Br - , and n is an integer from 2 to 4.
Claim 3
Dependent Claim
30 words
A composition according to claim 1 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 4500.
Claim 4
Dependent Claim
36 words
A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum, distribution of a substantially oil-free aqueous gel composition according to claim 2.
Claim 5
Dependent Claim
30 words
A composition according to claim 2 wherein the dimethicone has a molecular weight of from about 480,000 to 520,000 and wherein the cationic surfactant is γ-glyconamidopropyl dimethyl 2-hydroxyethyl ammonium chloride.
Claim 6
Dependent Claim
32 words
A composition according to claim 4 wherein the silicone carrier is a non-volatile silicone fluid selected from the group consisting of polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, polyether siloxanes, and mixtures thereof.
Claim 7
Dependent Claim
45 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 (10% aqueous solution, 20° C., Brookfield RVT) of less than 30,000 cps, 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
32 words
A composition according to claim 7 wherein the hydrophilic gelling agent is present a level from about 0.2% to about 2% and has a neutralized viscosity of at least about 10,000 cps.
Claim 10
Dependent Claim
36 words
A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 8.
Claim 11
Dependent Claim
17 words
A composition according to claim 8 comprising from 0.3% to 1% by weight of the polyglycerylmethacrylate lubricant.
Claim 12
Dependent Claim
20 words
A composition according to claim 10 having a viscosity (20° C., neat, Brookfield RVT) of from 4000 to 300,000 cps.
Claim 13
Dependent Claim
25 words
A composition according to claim 11 wherein the neutralized gelling agent has viscosity (1% aqueous solution, 20° C., Brookfield RVT) of at least 80,000 cps.
Claim 14
Dependent Claim
38 words
A composition according to claim 12 wherein the gelling agent is a colloidally water-soluble carboxyvinyl polymer of acrylic acid cross-linked with from about 0.2% to 0.4% of a cross-linking agent selected from allylpentaerythritol, trimethylolpropane diallylether, and allyl sucrose.
Claim 15
Dependent Claim
26 words
A composition according to claim 13 wherein the carboxylic acid copolymer is selected from the group consisting of carbomer, acrylates/C10-30 alkyl acrylate crosspolymer, and mixtures thereof.
Claim 16
Dependent Claim
36 words
A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 14.
Claim 17
Dependent Claim
23 words
A composition according to claim 14 wherein the weight ratio of carboxylic acid copolymer to gluconamide is from about 1:10 to about 10:1.
Claim 18
Dependent Claim
36 words
A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil-free aqueous gel composition according to claim 16.
Claim 19
Dependent Claim
21 words
A composition according to claim 16 wherein said emulsion further comprises from about 0.1% to about 20% of a pharmaceutical active.
Claim 20
Dependent Claim
37 words
A method for controlling sebum distribution on facial skin, said method comprising topically applying to the facial skin an effective amount for controlling sebum distribution of a substantially oil -free aqueous gel composition according to claim 1.
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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) | 1998-01-09 | 1998-07-11 | 1999-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-09 | 2002-07-11 | 2003-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-09 | 2006-07-11 | 2007-01-10 | $7700.00 | Window Closed / Lapsed |