Patents by Inventor Brian G. Koethe
Brian G. Koethe 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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Publication number: 20230356362Abstract: A method of making a coated abrasive article comprises sequential steps: disposing a curable composition on a major surface of a backing b) adhering abrasive particles to the curable composition; c) at least partially curing the free-radically polymerizable component; and d) at least partially curing the phenolic resin component to provide an at least partially cured composition. The curable composition comprises a phenolic resin component, a free-radically polymerizable component, and an organic polymeric rheology modifier, wherein the organic polymeric rheology modifier comprises an alkali-swellable/soluble polymer, and wherein, on a solid basis, the organic polymeric rheology modifier comprises from 0.001 to 5 weight percent of the phenolic resin component, the free-radically polymerizable component, and the organic polymeric rheology modifier combined. A variant wherein step b) effectively occurs after step c) is also disclosed. Abrasive articles made according to the methods are also disclosed.Type: ApplicationFiled: August 19, 2021Publication date: November 9, 2023Inventors: Ernest L. Thurber, Thomas J. Nelson, Gregory P. Sorenson, Junting Li, Daniel M. Lentz, Brian G. Koethe, Jon T. Schwartz, Jing Zhang, Ann M. Hawkins, Geoffrey I. Wilson, Blake R. Rustad, Gregory S. Mueller
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Patent number: 11505730Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.Type: GrantFiled: May 11, 2018Date of Patent: November 22, 2022Assignee: 3M Innovative Properties CompanyInventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
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Publication number: 20220339761Abstract: A method of making a coated abrasive article includes: depositing precisely-shaped abrasive platelets into precisely-shaped cavities in a production tool; depositing diluent abrasive particles onto the production tool; contacting the precisely-shaped abrasive platelets and the diluent abrasive particles with a curable make layer precursor disposed on a major surface of a backing; separating the tool from the precisely-shaped abrasive platelets and the diluent abrasive particles; and at least partially curing the curable make layer precursor to provide an at least partially cured make layer precursor. Coated abrasive articles preparable by the method are also disclosed.Type: ApplicationFiled: October 9, 2020Publication date: October 27, 2022Inventors: Yuyang Liu, Ann M. Hawkins, Geoffrey I. Wilson, Brian G. Koethe, Ernest L. Thurber, Negus B. Adefris, Junting Li, Fay T. Salmon
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Publication number: 20220152783Abstract: The disclosure relates to an abrasive article comprising: a fabric substrate comprising strands forming first void spaces between the strands; a laminate joined to the fabric substrate; a cured resin composition joined to the laminate opposite the fabric substrate; abrasive particles joined to the cured resin composition; and a plurality of second void spaces extending through the laminate coinciding with first void spaces in the fabric substrate. The disclosure also relates to methods of making such abrasive articles.Type: ApplicationFiled: February 7, 2020Publication date: May 19, 2022Inventors: Jaime A. Martinez, Caroline E. Morel, Junting Li, Michael J. Annen, Deborah J. Eilers, Daniel A. Billig, Carlos A. Barrios, Monika E. Frendt, Victor A. Cárdenas, Yuyang Liu, Dwight D. Erickson, Brian G. Koethe, Ann M. Hawkins, Jing Zhang
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Publication number: 20220016747Abstract: A coated abrasive article comprises a backing having first and second opposed major surfaces. A make layer is bonded to the first major surface. Agglomerate grinding aid particles are directly bonded to the make layer. At least a portion of the agglomerate grinding aid particles comprise grinding aid particles retained in a binder, and are arranged according to an open predetermined pattern. Abrasive particles are directly bonded to the make layer in spaces between the agglomerate grinding aid particles. A size layer is directly bonded to the make layer, agglomerate grinding aid particles, and abrasive particles. A method of making a coated abrasive article, in which the agglomerate grinding aid particles are deposited onto a curable make layer precursor prior to depositing abrasive particles onto the curable make layer precursor in spaces between the agglomerate grinding aid particles is also disclosed.Type: ApplicationFiled: December 6, 2019Publication date: January 20, 2022Inventors: Junting Li, Yuyang Liu, Mark A. Lukowski, Ernest L. Thurber, Brian G. Koethe, Ann M. Hawkins, Geoffrey I. Wilson
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Patent number: 10919126Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of strips defining a plurality of channels. Each channel is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the channels. The particle then passes partially through the channel such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the channel. The sequence then includes the particle remaining in simultaneous contact with one of the strips and the major face for a dwell period.Type: GrantFiled: July 1, 2016Date of Patent: February 16, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
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Patent number: 10773361Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.Type: GrantFiled: June 15, 2016Date of Patent: September 15, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Geoffrey I. Wilson, Mark R. Nyberg, Jeffery S. Thomford, Ernest L. Thurber, Brian G. Koethe, Charles C. Drange, Robert J. Hnatyk, John T. Boden
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Publication number: 20200223031Abstract: An abrasive article includes a plurality of abrasive particles and the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range, and the spacing of the abrasive particles along the y-axis varies randomly.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Inventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
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Publication number: 20200199425Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.Type: ApplicationFiled: May 11, 2018Publication date: June 25, 2020Inventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
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Patent number: 10603766Abstract: An abrasive article includes a plurality of abrasive particles and the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range, and the spacing of the abrasive particles along the y-axis varies randomly.Type: GrantFiled: June 13, 2016Date of Patent: March 31, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
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Publication number: 20180318983Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.Type: ApplicationFiled: June 15, 2016Publication date: November 8, 2018Inventors: Geoffrey I. Wilson, Mark R. Nyberg, Jeffery S. Thomford, Ernest L. Thurber, Brian G. Koethe, Charles C. Drange, Robert J. Hnatyk, John T. Boden
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Publication number: 20180169836Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of strips defining a plurality of channels. Each channel is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the channels. The particle then passes partially through the channel such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the channel. The sequence then includes the particle remaining in simultaneous contact with one of the strips and the major face for a dwell period.Type: ApplicationFiled: July 1, 2016Publication date: June 21, 2018Inventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
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Publication number: 20180161960Abstract: An abrasive article includes a plurality of abrasive particles and the rotational orientation of at least a portion of the abrasive particles about the z-axis varies randomly within a defined range, and the spacing of the abrasive particles along the y-axis varies randomly.Type: ApplicationFiled: June 13, 2016Publication date: June 14, 2018Inventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
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Patent number: 9849563Abstract: An abrasive article comprises abrasive particles adhered to a substrate by a binder material comprising an at least partially cured resole phenolic resin and an aliphatic tack modifier. The amount of resole phenolic resin comprises from 60 to 98 weight percent of the combined weight of the resole phenolic resin and the aliphatic tack modifier. A method of making the abrasive article is also disclosed.Type: GrantFiled: November 5, 2015Date of Patent: December 26, 2017Assignee: 3M Innovative Properties CompanyInventors: Ernest L. Thurber, Rebecca A. Putans, Scott R. Culler, John T. Boden, Brian G. Koethe, Brant A. Moegenburg, Thomas J. Nelson, Aaron K. Nienaber, Wayne W. Maurer, Ibrahim A. El-Hedok, Albert I. Everaerts, Joseph B. Eckel, Mahfuza B. Ali
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Patent number: 9676078Abstract: A method of applying particles to a backing having a make layer on one of the backing's opposed major surfaces. The method including the steps of: supporting the particles on a feeding member having a feeding surface such that the particles settle into one or more layers on the feeding surface; the feeding surface and the backing being arranged in a non-parallel manner; and translating the particles from the feeding surface to the backing and attaching the particles to the make layer by an electrostatic force.Type: GrantFiled: April 21, 2015Date of Patent: June 13, 2017Assignee: 3M Innovative Properties CompanyInventors: Louis S. Moren, Brian G. Koethe, John T. Boden
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Publication number: 20170129075Abstract: An abrasive article comprises abrasive particles adhered to a substrate by a binder material comprising an at least partially cured resole phenolic resin and an aliphatic tack modifier. The amount of resole phenolic resin comprises from 60 to 98 weight percent of the combined weight of the resole phenolic resin and the aliphatic tack modifier. A method of making the abrasive article is also disclosed.Type: ApplicationFiled: November 5, 2015Publication date: May 11, 2017Inventors: Ernest L. Thurber, Rebecca A. Putans, Scott R. Culler, John T. Boden, Brian G. Koethe, Brant A. Moegenburg, Thomas J. Nelson, Aaron K. Nienaber, Wayne W. Maurer, Ibrahim A. El-Hedok, Albert I. Everaerts, Joseph B. Eckel, Mahfuza B. Ali
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Publication number: 20150224629Abstract: A method of applying particles to a backing having a make layer on one of the backing's opposed major surfaces. The method including the steps of: supporting the particles on a feeding member having a feeding surface such that the particles settle into one or more layers on the feeding surface; the feeding surface and the backing being arranged in a non-parallel manner; and translating the particles from the feeding surface to the backing and attaching the particles to the make layer by an electrostatic force.Type: ApplicationFiled: April 21, 2015Publication date: August 13, 2015Inventors: Louis S. Moren, Brian G. Koethe, John T. Boden
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Patent number: 9040122Abstract: A method of applying particles to a backing having a make layer on one of the backing's opposed major surfaces. The method including the steps of: supporting the particles on a feeding member having a feeding surface such that the particles settle into one or more layers on the feeding surface; the feeding surface and the backing being arranged in a non-parallel manner; and translating the particles from the feeding surface to the backing and attaching the particles to the make layer by an electrostatic force.Type: GrantFiled: May 28, 2014Date of Patent: May 26, 2015Assignee: 3M Innovative Properties CompanyInventors: Louis S. Moren, Brian G. Koethe, John T. Boden
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Patent number: 9001286Abstract: An optical device has a first film (200) that has a first side and a second side. When illuminated by light (204) at the first side, the first film is characterized by a first fraction of broadly diffused transmitted light (206) and a second fraction of narrowly diffused transmitted light (208). A second film (202) is disposed to the second side of the first film. The second film has at least one free surface that diverts light. In some embodiments, the first film has a diffuse scattering optical density between 0.5 and 3. The device finds use in spreading and making light uniform in a backlight in a display such as a liquid crystal display.Type: GrantFiled: February 13, 2009Date of Patent: April 7, 2015Assignee: 3M Innovative Properties CompanyInventors: Kenneth A. Epstein, Stephen J. Etzkorn, Eric W. Nelson, Mark D. Gehisen, Brian G. Koethe
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Patent number: 8869740Abstract: Disclosed is a method of applying particles to a coated backing. A first layer of particles is created over a second layer of particles on a support surface and the first layer of particles is different in at least one property from the second layer of particles. A coated backing is positioned above the first and second layer of particles. An electrostatic field is applied simultaneously to the first and second layer of particles such that the first layer of particles closer to the coated backing are preferentially attracted to the coated backing first before the second layer of particles.Type: GrantFiled: September 3, 2013Date of Patent: October 28, 2014Assignee: 3M Innovative Properties CompanyInventors: Louis S. Moren, Brian G. Koethe, Ernest L. Thurber