Patents by Inventor David A. Ylitalo
David A. Ylitalo 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: 10815408Abstract: Provided are two-component curable compositions and methods thereof. The composition includes a base component comprised of a curable resin and a first compressible filler dispersed therein. The composition further includes a curative component comprised of a curing agent and a second compressible filler dispersed therein. The base and curative components react with each other upon mixing to provide a crosslinked network. When used with automated metering pumps, the compressibility of the base and curing agent components can be matched, allowing for a constant mix ratio despite variability in applied pressure.Type: GrantFiled: October 2, 2017Date of Patent: October 27, 2020Assignee: 3M Innovative Properties CompanyInventors: Jonathan D. Zook, David A. Ylitalo, Alla Yankovsky, Audrey B. Nguyen, Susan E. DeMoss
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Patent number: 10780657Abstract: Methods of using and repairing seal caps as well as constructions comprising seal caps, including in some embodiments seal caps which may be useful in sealing fasteners that protrude into fuel storage cells in aircraft. In some embodiments, methods include the use of optically translucent seal cap and application of a second quantity of sealant to fill voids observed within the interior of the seal cap after cure of a first quantity of sealant.Type: GrantFiled: December 22, 2015Date of Patent: September 22, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael D. Swan, Larry S. Hebert, David A. Ylitalo
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Patent number: 10577451Abstract: Thermally stable microstructured layers comprising polyurethane, polyurea and/or polyurethane/urea semi-IPN materials are provided which have microstructured surfaces which are highly durable, erosion resistant, and thermally stable. The microstructured layer comprises a semi-IPN of a polymer network selected from the group consisting of urethane acrylate polymer networks, urethane/urea acrylate polymer networks and urea acrylate polymer networks and a linear or branched polymer that is a thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyurethane/polyureas, thermoplastic polyureas, and combinations thereof. The microstructures are thermally stable at temperatures above the crossover point of the thermoplastic polymer, despite comprising a majority of such thermoplastic material. In another aspect, the present disclosure provides methods of making microstructured layers according to the present disclosure.Type: GrantFiled: May 13, 2016Date of Patent: March 3, 2020Assignee: 3M Innovative Properties CompanyInventors: Ryan E. Marx, David A. Ylitalo
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Publication number: 20190241782Abstract: Provided are two-component curable compositions and methods thereof. The composition includes a base component comprised of a curable resin and a first compressible filler dispersed therein. The composition further includes a curative component comprised of a curing agent and a second compressible filler dispersed therein. The base and curative components react with each other upon mixing to provide a crosslinked network. When used with automated metering pumps, the compressibility of the base and curing agent components can be matched, allowing for a constant mix ratio despite variability in applied pressure.Type: ApplicationFiled: October 2, 2017Publication date: August 8, 2019Inventors: Jonathan D. Zook, David A. Ylitalo, Alla Yankovsky, Audrey B. Nguyen, Susan E. DeMoss
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Publication number: 20180127534Abstract: Thermally stable microstructured layers comprising polyurethane, polyurea and/or polyurethane/urea semi-IPN materials are provided which have microstructured surfaces which are highly durable, erosion resistant, and thermally stable. The microstructured layer comprises a semi-IPN of a polymer network selected from the group consisting of urethane acrylate polymer networks, urethane/urea acrylate polymer networks and urea acrylate polymer networks and a linear or branched polymer that is a thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyurethane/polyureas, thermoplastic polyureas, and combinations thereof. The microstructures are thermally stable at temperatures above the crossover point of the thermoplastic polymer, despite comprising a majority of such thermoplastic material. In another aspect, the present disclosure provides methods of making microstructured layers according to the present disclosure.Type: ApplicationFiled: May 13, 2016Publication date: May 10, 2018Inventors: Ryan E. Marx, David A. Ylitalo
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Publication number: 20170361549Abstract: Methods of using and repairing seal caps as well as constructions comprising seal caps, including in some embodiments seal caps which may be useful in sealing fasteners that protrude into fuel storage cells in aircraft. In some embodiments, methods include the use of optically translucent seal cap and application of a second quantity of sealant to fill voids observed within the interior of the seal cap after cure of a first quantity of sealant.Type: ApplicationFiled: December 22, 2015Publication date: December 21, 2017Inventors: Michael D. Swan, Larry S. Hebert, David A. Ylitalo
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Patent number: 9540494Abstract: Crosslinked silicone foams are provided that can be substantially free of chemical blowing agents or byproducts thereof. These foams can be prepared from polymerizable silicone compositions that include an MQ-water cluster including a silicate MQ resin and a quantity of water dispersed in the silicate MQ resin and a silicone fluid, wherein the MQ-water cluster and silicone fluid collectively provide a inverted emulsion having a continuous and a discontinuous phase, the continuous phase including the silicone fluid and the discontinuous phase including the MQ-water cluster.Type: GrantFiled: September 3, 2013Date of Patent: January 10, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Junkang J. Liu, Pingfan Wu, Feng Bai, David A. Ylitalo
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Publication number: 20150259495Abstract: Crosslinked silicone foams are provided that can be substantially free of chemical blowing agents or byproducts thereof. These foams can be prepared from polymerizable silicone compositions that include an MQ-water cluster including a silicate MQ resin and a quantity of water dispersed in the silicate MQ resin and a silicone fluid, wherein the MQ-water cluster and silicone fluid collectively provide a inverted emulsion having a continuous and a discontinuous phase, the continuous phase including the silicone fluid and the discontinuous phase including the MQ-water cluster.Type: ApplicationFiled: September 3, 2013Publication date: September 17, 2015Inventors: Junkang J. Liu, Pingfan Wu, Bai Feng, David A. Ylitalo
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Patent number: 8276709Abstract: A sound insulation process comprises (a) providing at least one sound insulation device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the sound insulation device between an acoustic source area and an acoustic receiving area of a transportation vehicle.Type: GrantFiled: December 16, 2009Date of Patent: October 2, 2012Assignee: 3M Innovative Properties CompanyInventors: Ali Berker, Richard W. Greger, Marie Aloshyna ep Lesuffieur, Michael Patrick M. Mandanas, Sanat Mohanty, David A. Ylitalo, Patrick G. Zimmerman
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Patent number: 6559237Abstract: Disclosed are sulfonated aromatic perfluorocyclobutane polymers meeting a condition selected from: a) the equivalent weight of the polymer is 5000 or less, and b) the proton conductivity of the polymer at 25° C. is 0.Type: GrantFiled: June 5, 2000Date of Patent: May 6, 2003Assignee: 3M Innovative Properties CompanyInventors: Shane S. Mao, Krzysztof A. Lewinski, David A. Ylitalo
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Patent number: 6090895Abstract: A method is provided for making crosslinked acidic polymers useful as ion conductive membranes, such as crosslinked sulfonated polyether ketones, sulfonated polysulfones, sulfonated polystyrenes, and other acidic polymers, by crosslinking with a species which generates an acidic functionality. The crosslinker preferably binds to acid functions by conversion of acid groups to imide functionality, which, due to the acidity of the N-H bonds therein, compensate for the acidity lost by the occupation of the acid groups and thus preserve membrane conductivity while contributing to membrane strength and resistance to swelling.Type: GrantFiled: May 22, 1998Date of Patent: July 18, 2000Assignee: 3M Innovative Properties Co.,Inventors: Shane S. Mao, Steven J. Hamrock, David A. Ylitalo
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Patent number: 6054007Abstract: A shaped adhesive article is prepared by a method comprising the steps of shaping an adhesive mixture in a mold, said mold having one or more featured surfaces, said mixture including a first polymer precursor and a second polymer precursor, or a first polymer precursor and a thermoplastic polymer, polymerizing said first polymer precursor in said mold, to produce a shaped adhesive article having one or more featured surfaces, removing said shaped adhesive article from said mold, and adhering one or more of said featured surfaces to a substrate.Type: GrantFiled: April 10, 1997Date of Patent: April 25, 2000Assignee: 3M Innovative Properties CompanyInventors: Gary T. Boyd, Robert J. DeVoe, Ilya Gorodisher, David A. Ylitalo
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Patent number: 5976690Abstract: A process for making an adhesive comprising allowing a carrier web coated with a thermal free-radically polymerizable mixture to remain in a heat exchange medium for a time sufficient to subdue the reaction exotherm and maintain a reaction temperature by thermal contact of the polymerizable mixture with the heat exchange medium and to affect conversion of the coating to an adhesive layer, preferably to a pressure sensitive adhesive layer, wherein the coating is a substantially solvent-free thermally initiated polymerizable mixture comprised of at least one free radical monomer, at least one thermal initiator, optionally, at least one cross-linker and optionally, at least one co-monomer.Type: GrantFiled: February 9, 1998Date of Patent: November 2, 1999Assignee: 3M Innovative Properties CompanyInventors: Jerry W. Williams, Gary T. Boyd, Jeanne M. Goetzke, Gerald L. Uhl, David A. Ylitalo
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Patent number: 5741542Abstract: A process for making an adhesive comprising allowing a carrier web coated with a thermal free-radically polymerizable mixture to remain in a heat exchange medium for a time sufficient to subdue the reaction exotherm and maintain a reaction temperature by thermal contact of the polymerizable mixture with the heat exchange medium and to affect conversion of the coating to an adhesive layer, preferably to a pressure sensitive adhesive layer, wherein the coating is a substantially solvent-free thermally initiated polymerizable mixture comprised of at least one free radical monomer, at least one thermal initiator, optionally, at least one cross-linker and optionally, at least one co-monomer.Type: GrantFiled: May 18, 1995Date of Patent: April 21, 1998Assignee: Minnesota Mining & Manufacturing CompanyInventors: Jerry W. Williams, Gary T. Boyd, Jeanne M. Goetzke, Gerald L. Uhl, David A. Ylitalo
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Patent number: 5709948Abstract: A curable composition comprises 0.1 to 50 weight percent of a curable epoxy resin, the weight percent being based on the total resin composition, an effective mount of a curative for the curable epoxy resin, 50 to 99.9 weight percent of at least one of a fully prepolymerized hydrocarbon polyolefin resin and a fully prepolymerized functionalized polyolefin resin, the weight percent being based on the total resin composition, wherein said hydrocarbon polyolefin is present in the range of 25 to 99.9 weight percent of the total resin composition and said functionalized polyolefin is present in the range of 0 to 49.9 weight percent of the total resin composition, said composition being free of epoxidized natural and/or synthetic rubber.Type: GrantFiled: December 21, 1995Date of Patent: January 20, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mario A. Perez, David A. Ylitalo, Thomas M. Clausen, Robert J. DeVoe, Kevin E. Kinzer, Michael D. Swan