Patents by Inventor Irvin F. Dunsmore
Irvin F. Dunsmore 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: 6723438Abstract: Protective overlays comprising an at least partially cured overlay thermosettable resin and a substituted polysiloxane. Method for forming a protective overlay on a substrate to protect the substrate comprising (a) providing a substrate having at least one surface, (b) applying to at least part of the surface an overlay thermosettable resin, (c) applying to at least part of the surface a substituted polysiloxane, wherein at least a portion of the overlay thermosettable resin and at least a portion of the polysiloxane are applied to the same part of the surface and then (d) at least partially curing the overlay thermosettable resin. Decorative laminates comprising (a) a decorative inner layer having at least one decorative surface and (b) an overlay layer disposed on at least a portion of the decorative surface wherein the overlay layer comprises an at least partially cured overlay thermosettable resin and a substituted polysiloxane.Type: GrantFiled: January 31, 2002Date of Patent: April 20, 2004Assignee: 3M Innovative Properties CompanyInventors: John C. Chang, Irvin F. Dunsmore
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Patent number: 6537662Abstract: A soil-resistant spin finish composition based on select derivitized polyethers is provided that can be applied to a fiber at the earliest stages of spinning, can remain on the fiber through the entire manufacturing process, and can be left on the fiber in the final article of commerce. The spin finish composition provides excellent fiber lubrication during high-speed spin processing, yet is sufficiently soil resistant to negate the need for scouring the final fiber construction, even absent the presence of additional coatings or agents.Type: GrantFiled: January 11, 1999Date of Patent: March 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Robert F. Kamrath, James E. Lockridge, Edward R. Hauser, Irvin F. Dunsmore, Chetan P. Jariwala, Nicole L. Franchina, Roger R. Alm
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Patent number: 6536804Abstract: A high solids spin finish composition is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish composition comprises a hydrocarbon surfactant and a fluorochemical emulsion.Type: GrantFiled: August 8, 2000Date of Patent: March 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Irvin F. Dunsmore, James R. Lockridge, Edward R. Hauser, Chetan P. Jariwala
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Patent number: 6468452Abstract: A low melting, high solids spin finish composition is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish solids, which make up at least about 70% by weight of the spin finish composition, comprise nonionic hydrocarbon surfactant components, such as polyoxyalkylenes, which have a <HLB> value of from about 2 to 13 and a melting point within the range of about 25° C. to about 140° C. In some embodiments, the spin finish composition also includes select fluorochemicals.Type: GrantFiled: June 1, 2000Date of Patent: October 22, 2002Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Edward R. Hauser, James E. Lockridge, Irvin F. Dunsmore, Malcolm B. Burleigh, Nicole L. Franchina
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Patent number: 6468587Abstract: This invention relates to a method for imparting soil-resistant and water-repellent properties to fibrous polyamide substrates (such as carpet fibers) by applying an acidic aqueous treating solution containing a silsesquioxane. This invention also relates to the treating solution used to impart soil resistance, and water repellency to the fibrous polyamide. This invention also relates to treated fibrous substrate made according to the method of this invention.Type: GrantFiled: June 11, 2001Date of Patent: October 22, 2002Assignee: 3M Innovative Properties CompanyInventors: John C. Chang, Angela J. Nixon, Irvin F. Dunsmore
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Publication number: 20020150765Abstract: Protective overlays comprising an at least partially cured overlay thermosettable resin and a substituted polysiloxane. Method for forming a protective overlay on a substrate to protect the substrate comprising (a) providing a substrate having at least one surface, (b) applying to at least part of the surface an overlay thermosettable resin, (c) applying to at least part of the surface a substituted polysiloxane, wherein at least a portion of the overlay thermosettable resin and at least a portion of the polysiloxane are applied to the same part of the surface and then (d) at least partially curing the overlay thermosettable resin. Decorative laminates comprising (a) a decorative inner layer having at least one decorative surface and (b) an overlay layer disposed on at least a portion of the decorative surface wherein the overlay layer comprises an at least partially cured overlay thermosettable resin and a substituted polysiloxane.Type: ApplicationFiled: January 31, 2002Publication date: October 17, 2002Applicant: 3M Innovative Properties CompanyInventors: John C. Chang, Irvin F. Dunsmore
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Publication number: 20020025442Abstract: This invention relates to a method for imparting soil-resistant and water-repellent properties to fibrous polyamide substrates (such as carpet fibers) by applying an acidic aqueous treating solution containing a silsesquioxane. This invention also relates to the treating solution used to impart soil resistance, and water repellency to the fibrous polyamide. This invention also relates to treated fibrous substrate made according to the method of this invention.Type: ApplicationFiled: June 11, 2001Publication date: February 28, 2002Applicant: 3M Innovative Properties CompanyInventors: John C. Chang, Angela J. Nixon, Irvin F. Dunsmore
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Patent number: 6117353Abstract: A high solids spin finish composition is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish composition comprises a hydrocarbon surfactant and a fluorochemical emulsion.Type: GrantFiled: January 11, 1999Date of Patent: September 12, 2000Assignee: 3M Innovative Properties CompanyInventors: Irvin F. Dunsmore, James R. Lockridge, Edward R. Hauser, Chetan P. Jariwala
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Patent number: 6077468Abstract: A low melting, high solids spin finish composition is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish solids, which make up at least about 70% by weight of the spin finish composition, comprise nonionic hydrocarbon surfactant components, such as polyoxyalkylenes, which have a <HLB> value of from about 2 to 13 and a melting point within the range of about 25.degree. C. to about 140.degree. C. In some embodiments, the spin finish composition also includes select fluorochemicals.Type: GrantFiled: January 11, 1999Date of Patent: June 20, 2000Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Edward R. Hauser, James E. Lockridge, Irvin F. Dunsmore, Malcolm B. Burleigh, Nicole L. Franchina
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Patent number: 6074436Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with a salt of a polycarboxylic acid. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: May 13, 1998Date of Patent: June 13, 2000Assignee: 3M Innovative Properties CompanyInventors: Shou-Lu G. Wang, Irvin F. Dunsmore, Robert F. Kamrath, John C. Chang
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Patent number: 6068805Abstract: A method for making a fiber is provided in which a fiber containing a fluorochemical polymer melt additive is treated with a low melting, high solids spin finish composition during the fiber-making process.Type: GrantFiled: January 11, 1999Date of Patent: May 30, 2000Assignee: 3M Innovative Properties CompanyInventors: James E. Lockridge, Irvin F. Dunsmore
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Patent number: 5756181Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with the ammonium salt of a polycarboxylic acid, such as an ammonium salt of a hydrolyzed styrene/maleic anhydride copolymer. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: July 23, 1996Date of Patent: May 26, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Shou-Lu G. Wang, Irvin F. Dunsmore, Robert F. Kamrath, John C. Chang
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Patent number: 5744201Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with the ammonium salt of a polycarboxylic acid, such as an ammonium salt of a hydrolyzed styrene/maleic anhydride copolymer. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: April 15, 1997Date of Patent: April 28, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: John C. Chang, Shou-Lu G. Wang, Irvin F. Dunsmore, Robert F. Kamrath
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Patent number: 5738687Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with the ammonium salt of a polycarboxylic acid, such as an ammonium salt of a hydrolyzed styrene/maleic anhydride copolymer. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: July 23, 1996Date of Patent: April 14, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert F. Kamrath, John C. Chang, Shou-Lu G. Wang, Irvin F. Dunsmore
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Patent number: 4795764Abstract: Air is mechanically entrained in an aqueous solution of surfactant, polyamine reactant, and low moisture sensitive poly(oxyalkylene) poly(aliphatic isocyanate) prepolymer the poly(oxyalkylene) portion of which contains sufficient oxyethylene units to render the prepolymer water-soluble and hydrophilic, to form a fluid, water-based, air foam which is sprayed or otherwise applied to exposed surface of a substrate, such as a body of hazardous material, the applied foam gelling or increasing in viscosity, due to reaction of the polyisocyanate prepolymer with the polyamine in the presence of the water to form a poly(oxyalkylene) polyurea polymer containing polyurylene-containing segments formed from the reaction, and forming a persistent gelled air foam or viscous air foam in the form of a coating on the exposed surface, thus sealing or otherwise protecting or controlling the substrate.Type: GrantFiled: June 1, 1987Date of Patent: January 3, 1989Assignee: Minnesota Mining & Manufacturing CompanyInventors: Roger R. Alm, Irvin F. Dunsmore, Richard M. Stern