Patents by Inventor David Frederick Swaile
David Frederick Swaile has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6136302Abstract: Disclosed is a process for making zirconium-aluminum salts for use as antiperspirant active, which process comprises the step of anhydrous mixing of a zirconium salt and an aluminum salt to form a zirconium-aluminum salt, wherein the mixture of zirconium and aluminum salts is substantially free of unbound water at all times during the process. The zirconium, aluminum and zirconium-aluminum salts in the process are in the form of particulate or other solids, or can otherwise be dissolved or dispersed in a non-aqueous medium. The process allows for the formation of zirconium-aluminum salts as antiperspirant active without relying upon prior art methods which teach that zirconium-aluminum salts require reaction together in an aqueous medium. This process is more stable than the prior art methods and provides better control over optimizing the polymer size distribution within the resulting zirconium-aluminum salts.Type: GrantFiled: February 18, 1999Date of Patent: October 24, 2000Assignee: The Procter & Gamble CompanyInventors: Prem Sagar Juneja, David Frederick Swaile
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Patent number: 6136303Abstract: Disclosed are anhydrous aerosol package compositions which comprise (a) a Lewis acid having a pKa of less than about 5.0; (b) from about 5% to about 95% by weight of a fluorinated hydrocarbon propellant; (c) a hydrogen bonded water source; and (d) a rust inhibition means. The aerosol package compositions are preferably anhydrous aerosol antiperspirants which comprise an antiperspirant active, a fluorinated hydrocarbon propellant such as 1,1-difluroethane, and a rust inhibition means, wherein the antiperspirant active acts as a Lewis acid and contains hydrogen bonded water. It was found that aerosol package compositions containing fluorinated hydrocarbons, a strong Lewis acid, and a hydrogen bonded water source are surprisingly susceptible to corrosion or rust formation of any metal surface within the package, unless a known or otherwise effective rust inhibition means is added to or used in association with the packaged aerosol composition.Type: GrantFiled: March 10, 2000Date of Patent: October 24, 2000Assignee: The Procter & Gamble CompanyInventors: Nicholas Arthur Ruebusch, Scott Edward Smith, David Frederick Swaile
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Patent number: 6126928Abstract: Disclosed are antiperspirant compositions which comprise from about 0.1% to about 50% by weight of solubilized antiperspirant active (e.g., aluminum-containing active or aluminum-zirconium containing active); and from about 0.1% to about 99.9% by weight of a liquid polyol having at least 2 hydroxyl groups, wherein 2 hydroxyl groups are attached to the .alpha. and .beta. carbons of the liquid polyol and no more than 4 hydroxyl groups are attached to adjacent carbon atoms; a water-soluble, neutral amino acid; and a chlorine-containing inorganic acid; wherein the liquid polyol has a ClogP value of less than about 2.0, wherein the mole ratio of the neutral amino acid to the zirconium and aluminum is from about 0.09 to about 0.24, the mole ratio of the liquid polyol to the aluminum and zirconium is at least about 2.0:1, and the mole ratio of the zirconium and aluminum to chlorine is less than about 1.30:1.Type: GrantFiled: August 24, 1999Date of Patent: October 3, 2000Assignee: The Procter & Gamble CompanyInventor: David Frederick Swaile
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Patent number: 6096298Abstract: The present invention is directed to deodorant compositions, and methods of using such compositions, wherein the compositions comprise from about 0.1% to about 99.9% by weight of a deodorant active, fragrance or combination thereof, and from about 0.1% to about 99.9% by weight of a carrier comprising isopropyl glycerol ether. The deodorant composition preferably further comprises a suitable gellant or structurant to provide the desired product form, including a deodorant gel solid stick. The isopropyl glycerol ether carrier is a highly effective coupling agent and is milder to the skin when applied topically to the axilla or other areas of the skin as compared to many other polyol-containing deodorant compositions. The present invention also relates to the use of triclosan/triclocarban combinations for improved deodorant efficacy.Type: GrantFiled: August 24, 1999Date of Patent: August 1, 2000Assignee: The Procter & Gamble CompanyInventor: David Frederick Swaile
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Patent number: 6083493Abstract: The present invention is directed to antiperspirant compositions which comprise from about 0.1% to about 99.9% by weight of solubilized or solid antiperspirant active and from about 0.1% to about 99.9% by weight of a carrier which comprises isopropyl glycerol ether, preferably in combination with a volatile silicone liquid carrier and dimethiconol as a coupling agent. The isopropyl glycerol ether carrier is a highly effective coupling agent and is milder to the skin when applied topically to the axilla or other areas of the skin as compared to many other polyol-containing carriers. Preferred are antiperspirant compositions containing solubilized antiperspirant active.Type: GrantFiled: August 24, 1999Date of Patent: July 4, 2000Assignee: The Procter & Gamble CompanyInventor: David Frederick Swaile
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Patent number: 6045784Abstract: Disclosed are anhydrous aerosol package compositions which comprise (a) a Lewis acid having a pKa of less than about 5.0; (b) from about 5% to about 95% by weight of a fluorinated hydrocarbon propellant; (c) a hydrogen bonded water source; and (d) a rust inhibition means. The aerosol package compositions are preferably anhydrous aerosol antiperspirants which comprise an antiperspirant active, a fluorinated hydrocarbon propellant such as 1,1-difluroethane, and a rust inhibition means, wherein the antiperspirant active acts as a Lewis acid and contains hydrogen bonded water. It was found that aerosol package compositions containing fluorinated hydrocarbons, a strong Lewis acid, and a hydrogen bonded water source are surprisingly susceptible to corrosion or rust formation of any metal surface within the package, unless a known or otherwise effective rust inhibition means is added to or used in association with the packaged aerosol composition.Type: GrantFiled: May 7, 1998Date of Patent: April 4, 2000Assignee: The Procter & Gamble CompanyInventors: Nicholas Arthur Ruebusch, Scott Edward Smith, David Frederick Swaile
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Patent number: 5968489Abstract: The present invention is directed to antiperspirant compositions which comprise from about 0.1% to about 99.9% by weight of solubilized or solid antiperspirant active and from about 0.1% to about 99.9% by weight of a carrier which comprises 1,2-hexanediol, preferably in combination with a volatile silicone liquid carrier and dimethiconol as a coupling agent. The 1,2-hexanediol carrier is a highly effective coupling agent and is milder to the skin when applied topically to the axilla or other areas of the skin as compared to many other polyol-containing carriers. Preferred are antiperspirant compositions containing solubilized antiperspirant active.Type: GrantFiled: May 1, 1998Date of Patent: October 19, 1999Assignee: The Procter & Gamble CompanyInventors: David Frederick Swaile, Gerald John Guskey, Thomas Vincent Orr
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Patent number: 5902571Abstract: Disclosed are antiperspirant cream compositions which have a penetration force value of from about 20 gram.force to about 500 gram.force, and comprise (a) from about 20% to about 80% by weight of a volatile silicone material; (b) from about 5% to about 35% of a particulate antiperspirant active; and (c) from about 0.1% to about 20% by weight of a gellant material comprising glyceryl tribehenate and other triglycerides wherein at least about 75% of the esterified fatty acid moieties of said other triglycerides have from about 18 to about 36 carbon atoms, and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1. The compositions preferably further comprise a residue masking material.Type: GrantFiled: June 16, 1998Date of Patent: May 11, 1999Assignee: Procter & Gamble CompanyInventors: Christine Marie Putman, Eric John Bretzler, Deceased, David Frederick Swaile
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Patent number: 5902572Abstract: Disclosed are anhydrous gel deodorant compositions comprising from about 0.001% to about 50% by weight of deodorant active, fragrance, or combination thereof, from about 0.01% to about 20% by weight of a gellant; from about 1% to about 50% by weight of a nonpolar volatile solvent having a solubility parameter of less than 8.0 (cal/cm.sup.3).sup.0.5, a vapor pressure of from about 0.01 mm Hg to about 6 mm Hg at 25.degree. C., and a boiling point at 1 atm of less than about 250.degree. C.; from about 1% to about 15% by weight of a polar solvent having a solubility parameter of from 12.5 (cal/cm.sup.3).sup.0.5 to about 25 (cal/cm.sup.3).sup.0.5 and optionally a moderately polar solvent having a solubility parameter of from about 8.0 (cal/cm.sup.3).sup.0.5 to less than 12.5 (cal/cm.sup.3).sup.0.5, preferably 1,2-hexanediol. Other preferred embodiments include those which contain combinations of triclosan and triclocarban for improved deodorant efficacy.Type: GrantFiled: May 1, 1998Date of Patent: May 11, 1999Assignee: Procter & Gamble CompanyInventors: John Paul Luebbe, Li Li, Curtis Bobby Motley, David Frederick Swaile, Gerald John Guskey, Thomas Vincent Orr
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Patent number: 5902570Abstract: Disclosed are anhydrous antiperspirant cream compositions that are substantially free of polymeric or inorganic thickening, and have improved product stability and spreading performance. These compositions have a rheology profile characterized by select product hardness (from about 75 gram force to about 500 gram force), delta stress (from about 300 dyne/cm.sup.2 to about 8,000 dyne/cm.sup.2) and static yield stress (at least about 1,000 dyne/cm.sup.2 ) values. The new rheology profile is preferably applied to antiperspirant cream compositions comprising from about 0.1% to about 20 % by weight of a crystalline gellant, from about 10% to about 80% by weight of an anhydrous liquid carrier for the crystalline gellant having a solubility parameter of from about 3 to about 13 and, from about 5 % to about 35% by weight of a particulate antiperspirant active.Type: GrantFiled: February 13, 1998Date of Patent: May 11, 1999Assignee: Procter & Gamble CompanyInventors: Eric John Bretzler, deceased, Christine Marie Putman, Ghebre Egziabher Tzeghai, David Frederick Swaile
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Patent number: 5891424Abstract: Disclosed are anhydrous antiperspirant cream compositions that are substantially free of polymeric or inorganic thickening, and have improved product stability and spreading performance. These compositions have a rheology profile characterized by select product hardness (from about 75 gram force to about 500 gram force), delta stress (from about 300 dyne/cm.sup.2 to about 8,000 dyne/cm.sup.2) and static yield stress (at least about 1,000 dyne/cm.sup.2) values. The new rheology profile is preferably applied to antiperspirant cream compositions comprising from about 0.1% to about 20% by weight of a crystalline gellant, from about 10% to about 80% by weight of an anhydrous liquid carrier for the crystalline gellant having a solubility parameter of from about 3 to about 13 and, from about 5% to about 35% by weight of a particulate antiperspirant active.Type: GrantFiled: February 13, 1998Date of Patent: April 6, 1999Assignee: Procter & GambleInventors: Eric John Bretzler, deceased, Christine Marie Putman, Ghebre Egziabher Tzeghai, David Frederick Swaile
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Patent number: 5891425Abstract: Disclosed are anhydrous antiperspirant cream compositions that are substantially free of polymeric or inorganic thickening, and have improved product stability and spreading performance. These compositions have a rheology profile characterized by select product hardness (from about 75 gram force to about 500 gram force), delta stress (from about 300 dyne/cm.sup.2 to about 8,000 dyne/cm.sup.2) and static yield stress (at least about 1,000 dyne/cm.sup.2) values. The new rheology profile is preferably applied to antiperspirant cream compositions comprising from about 0.1% to about 20% by weight of a crystalline gellant, from about 10% to about 80% by weight of an anhydrous liquid carrier for the crystalline gellant having a solubility parameter of from about 3 to about 13 and, from about 5% to about 35% by weight of a particulate antiperspirant active.Type: GrantFiled: February 13, 1998Date of Patent: April 6, 1999Assignee: Procter & Gamble CompanyInventors: Eric John Bretzler, deceased, Christine Marie Putman, Ghebre Egziabher Tzeghai, David Frederick Swaile
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Patent number: 5871717Abstract: Disclosed are anhydrous antiperspirant cream compositions that are substantially free of polymeric or inorganic thickening, and have improved product stability and spreading performance. These compositions have a rheology profile characterized by select product hardness (from about 75 gram force to about 500 gram force), delta stress (from about 300 dyne/cm.sup.2 to 8,000 dyne/cm.sup.2) and static yield stress (at least about 1,000 dyne/cm.sup.2) values. The new rheology profile is preferably applied to antiperspirant cream compositions comprising from about 0.1% to about 20% by weight of a crystalline gellant, from about 10% to about 80% by weight of an anhydrous liquid carrier for the crystalline gellant having a solubility parameter of from about 3 to about 13 and, from about 5% to about 35% by weight of a particulate antiperspirant active.Type: GrantFiled: October 29, 1996Date of Patent: February 16, 1999Assignee: Procter & Gamble CompanyInventors: Eric John Bretzler, deceased, Christine Marie Putman, Ghebre Egziabher Tzeghai, David Frederick Swaile
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Patent number: 5846520Abstract: Disclosed are cosmetic gel-solid stick compositions comprising particulate antiperspirant active, a fatty acid gellant having a select dimer-to-monomer ratio and an optional secondary gellant, and an anhydrous liquid carrier. The select dimer-to-monomer ratio of the fatty acid gellant helps provide the composition with improved hardness, low residue performance and efficacy, especially when used in combination with a secondary gellant.Type: GrantFiled: December 20, 1996Date of Patent: December 8, 1998Assignee: Procter & Gamble CompanyInventors: Gerald John Guskey, Fazale Rahman Rana, David Frederick Swaile
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Patent number: 5843414Abstract: Disclosed are antiperspirant cream compositions with improved dry skin feel. These antiperspirant compositions have a penetration force value of from about 20 gram.multidot.force to about 500 gram.multidot.force, and comprise (a) from about 20% to about 80% by weight of a volatile silicone material; (b) from about 5% to about 35% of a particulate antiperspirant active; (c) from about 0.1% to about 20% by weight of a gellant material comprising glyceryl tribehenate and other triglycerides wherein at least about 75% of the esterified fatty acid moieties of said other triglycerides have from about 18 to about 36 carbon atoms, and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1; and (d) from about 0.1% to about 5% by weight of a drying agent selected from the group consisting of bentonite clays, hectonite clays, colloidal silicas, talc, microthene, and mixtures thereof. The compositions preferably further comprise a residue masking material.Type: GrantFiled: May 15, 1997Date of Patent: December 1, 1998Assignee: The Procter & Gamble CompanyInventors: Jennifer Elaine Hilvert, Christine Marie Putman, David Frederick Swaile
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Patent number: 5840287Abstract: The present invention relates to antiperspirant compositions in the form of gels and gel-solids. In particular, the present invention relates to select compositions in the form of gels that provide improved residue characteristics and efficacy performance.Type: GrantFiled: December 20, 1996Date of Patent: November 24, 1998Assignee: Procter & Gamble CompanyInventors: Gerald John Guskey, Raymond Joseph Lo, David Frederick Swaile
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Patent number: 5776494Abstract: The present invention relates to pharmaceutical compositions useful as carriers for topical skin actives such as moisturizers, protectants, antiperspirants, deodorants and the like; and more particularly, to such pharmaceutical compositions in the form of a gel or gel stick.Type: GrantFiled: December 20, 1996Date of Patent: July 7, 1998Assignee: The Procter & Gamble CompanyInventors: Gerald John Guskey, Raymond Joseph Lo, David Frederick Swaile
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Patent number: 5718890Abstract: Disclosed are antiperspirant cream compositions which have a penetration force value of from about 20 gram.multidot.force to about 500 gram.multidot.force, and comprise (a) from about 20% to about 80% by weight of a volatile silicone material; (b) from about 5% to about 35% of a particulate antiperspirant active; and (c) from about 0.1% to about 20% by weight of a gellant material comprising glyceryl tribehenate and other triglycerides wherein at least about 75% of the esterified fatty acid moieties of said other triglycerides have from about 18 to about 36 carbon atoms, and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1. The compositions preferably further comprise a residue masking material.Type: GrantFiled: October 29, 1996Date of Patent: February 17, 1998Assignee: The Proctor & Gamble CompanyInventors: Christine Marie Putnam, Eric John Bretzler, deceased, David Frederick Swaile