Patents by Inventor Ernest L. Thurber
Ernest L. Thurber 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: 20250196292Abstract: A curable composition comprises from 45 to 55 percent by weight of epoxy resin preparable by reaction of epichlorohydrin with at least one of bisphenol A or bisphenol F, from 6 to 12 percent by weight of an at least trifunctional (meth)acrylate, from 35 to 45 percent by weight of a polythiol, 0 to 10 percent by weight of dicyandiamide, 0.1 to 2 percent free-radical photoinitiator, 0.5 to 1 percent by weight of a 2-alkylimidazole, and 0 to 5 percent of phenolic resin, based on the total weight of components a) to g). The curable composition is useful as make layer precursor for preparing coated abrasive articles. Methods of making and using the coated abrasive articles are also disclosed.Type: ApplicationFiled: March 16, 2023Publication date: June 19, 2025Inventors: Junting Li, Ernest L. Thurber, Yuyang Liu
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Patent number: 11981000Abstract: 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: GrantFiled: December 6, 2019Date of Patent: May 14, 2024Assignee: 3M Innovative Properties CompanyInventors: 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: 11945944Abstract: The disclosure relates to a curable composition comprising: a polymerizable epoxy-acrylate resin composition having a complex viscosity at 25° C. and 1 Hz frequency of at least about 4500 Pa-s and a probe tack peak force of at least about 300 kPa; and abrasive particles partially or fully embedded in the polymerizable epoxy-acrylate resin composition. The disclosure also relates to cured compositions formed from such curable compositions, wherein the abrasive particles are partially or fully embedded in the cured composition. In addition, the disclosure relates to abrasive articles made from such cured compositions as well as methods for making abrasive articles.Type: GrantFiled: December 4, 2017Date of Patent: April 2, 2024Assignee: 3M Innovative Properties CompanyInventors: Kathleen S. Shafer, Rebecca A. Putans, Ernest L. Thurber, Cyrus A. Anderson, Corinne E. Lipscomb, Thomas J. Nelson, Gregory P. Sorenson, Chainika Jangu
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Publication number: 20230405766Abstract: A method of making a coated abrasive article includes disposing a precursor make layer on a major surface of the backing, optionally partially curing the precursor make layer to provide a partially cured precursor make layer, disposing abrasive particles; partially embedding abrasive particles in the optionally partially cured precursor make layer; and further curing the optionally partially cured precursor make layer to form a make layer. The precursor make layer comprises components comprising: a) 50 to 97.99 percent by weight of phenol-formaldehyde resin; b) 1 to 49 percent by weight of resorcinol-formaldehyde resin; c) 1 to 49 percent by weight of at least one compound having at least one free-radically polymerizable group; and d) 0.01 to 1 percent by weight of a free-radical initiator. A size layer and/or supersize layer may be disposed over the make layer and abrasive articles. Coated abrasive articles made by the method are also disclosed.Type: ApplicationFiled: September 22, 2021Publication date: December 21, 2023Inventors: Junting Li, Yu Yang, Jing Zhang, Michael J. Annen, Ernest L. Thurber, Eric W. Nelson, Mark A. Lukowski, Chunjie Zhang
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Publication number: 20230356361Abstract: An abrasive article comprises abrasive particles adhered to a substrate by a binder material. The binder material comprises an at least partially cured resole phenolic resin and an organic polymeric rheology modifier. The amount of the at least partially cured resole phenolic resin comprises 99.01 to 99.98 weight percent of the combined weight of the at least partially cured resole phenolic resin and the organic polymeric rheology modifier. Methods of making the abrasive article are also disclosed.Type: ApplicationFiled: October 7, 2021Publication date: November 9, 2023Inventors: Gregory P. Sorenson, ILYA Gorodisher, Ernest L. Thurber, Thomas J. Nelson
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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: 11795287Abstract: Various embodiments disclosed relate to pore inducers and porous abrasive forms made using the same. In various embodiments, the present invention provides a method of forming a porous abrasive form including heating an abrasive composition including pore inducers to form the porous abrasive form. During the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form.Type: GrantFiled: June 24, 2021Date of Patent: October 24, 2023Assignee: 3M Innovative Properties CompanyInventors: Brian D. Goers, Mark A. Lukowski, Walter Flaschberger, Ernest L. Thurber, John E. Gozum
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Publication number: 20230286112Abstract: A coated abrasive article comprises a backing having first and second opposed major surfaces, a make layer disposed on at least a portion of the first major surface and bonding abrasive particles to the backing, a size layer overlaid on at least a portion of the make layer and the abrasive particles, and a supersize layer disposed on the size layer. The supersize layer comprises an at least partially cured water-based epoxy resin and an organic polymeric rheology modifier, and wherein the amount of the at least partially cured epoxy resin comprises from 75 to 99.99 weight percent of the combined weight of the at least partially cured epoxy resin and the organic polymeric rheology modifier. A method of making the coated abrasive article is also disclosed.Type: ApplicationFiled: July 20, 2021Publication date: September 14, 2023Inventors: Ernest L. Thurber, Gregory P. Sorenson, ILYA Gorodisher, Thomas J. Nelson, Junting Li, Daniel M. Lentz
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Patent number: 11648646Abstract: An abrasive article includes a first plurality of abrasive particles and a second plurality of abrasive particles. The first plurality of abrasive particles differ in at least one of a size, an average weight and a shape from the second plurality of abrasive particles. The first plurality of abrasive particles are spaced from the second plurality of abrasive particles by at least a minimum distance in the x-axis direction, and both the first plurality of abrasive particles and the second plurality of abrasive particles extend in similar paths to one another with respect to the y-axis.Type: GrantFiled: December 15, 2017Date of Patent: May 16, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yuyang Liu, Geoffrey I. Wilson, Junting Li, Ernest L. Thurber
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Publication number: 20230059614Abstract: A coated abrasive article comprises a backing having first and second opposed major surfaces, a make layer disposed on at least a portion of the first major surface and bonding abrasive particles to the backing, a size layer overlaid on at least a portion of the make layer and the abrasive particles, and an optional supersize layer. At least one of the size layer or the optional supersize layer comprises an at least partially cured resole phenolic resin and an organic polymeric rheology modifier, and wherein the amount of the at least partially cured resole phenolic resin comprises from 75 to 99.99 weight percent of the combined weight of the at least partially cured resole phenolic resin and the organic polymeric rheology modifier. A method of making the coated abrasive article is also disclosed.Type: ApplicationFiled: February 1, 2021Publication date: February 23, 2023Inventors: Ernest L. Thurber, Gregory P. Sorenson, Ilya Gorodisher, Thomas J. Nelson, Junting Li, Daniel M. Lentz
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Publication number: 20230001541Abstract: An abrasive article is disclosed. The abrasive article has a backing substrate. The abrasive article also has a laminate joined to the backing substrate. The laminate comprises a hot melt polymer. The abrasive article also has a cured resin composition joined to the laminate opposite the backing substrate. The abrasive article also has abrasive particles joined to the cured resin composition.Type: ApplicationFiled: December 7, 2020Publication date: January 5, 2023Inventors: Junting Li, Jing Zhang, Liming Song, Jimmy M. Le, Stephen M. Sanocki, Yaohua Gao, Paul J. Cordes, Gregory S. Mueller, Ernest L. Thurber, Yuyang Liu, Jaime A. Martinez, Michael J. Annen
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Patent number: 11534892Abstract: In methods and systems of making an abrasive article, abrasive particles are loaded to a distribution tool including a plurality of upper walls defining a plurality of spacing slots, and a plurality of lower walls defining a plurality of distribution slots. The spacing slots are open to the distribution slots, which are open to a lower side of the tool. The loaded particles are spaced and distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool in a machine direction. The upper walls space the particles in the machine direction. The particles distributed by the lower walls undergo an orientation sequence in which each particle is oriented into a column aligned along the machine direction. The upper walls can be disposed oblique to the lower walls. The upper and lower walls can have pointed upper portions.Type: GrantFiled: December 15, 2017Date of Patent: December 27, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yuyang Liu, Junting Li, Geoffrey I. Wilson, Ernest L. Thurber
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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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Patent number: 11433505Abstract: A system includes a distribution tool, a backing, a first plurality of abrasive particles and a second plurality of abrasive articles. The distribution tool includes a first section and a second section. The first section is configured to receive the first plurality of abrasive particles and pass the first plurality of abrasive particles through one or more of the plurality of slots to the backing. The second plurality of abrasive particles differ in at least one of a size, an average weight and a shape from the first plurality of abrasive particles. The second section is configured to receive the second plurality of abrasive particles and pass the second plurality of abrasive particles through one or more of the plurality of slots to the backing.Type: GrantFiled: December 15, 2017Date of Patent: September 6, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yuyang Liu, Junting Li, Geoffrey I. Wilson, Ernest L. Thurber
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Publication number: 20220203501Abstract: An abrasive article comprises abrasive particles adhered to a substrate by a binder material. The binder material comprises an at least partially cured resole phenolic resin and an organic polymeric rheology modifier. The amount of the at least partially cured resole phenolic resin comprises from 75 to 99.99 weight percent of the combined weight of the at least partially cured resole phenolic resin and the organic polymeric rheology modifier. Methods of making the abrasive article are also disclosed.Type: ApplicationFiled: March 25, 2020Publication date: June 30, 2022Inventors: Gregory P. Sorenson, Ilya Gorodisher, Ernest L. Thurber, Thomas J. Nelson
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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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Publication number: 20210387310Abstract: A coated abrasive article (100) comprises: a backing (110) comprising polyester and having a major surface (115); a tie layer (120) directly bound to at least a portion of the major surface (115); and an abrasive layer (130) directly bound to at least a portion of the tie layer (120), the abrasive layer (130) comprising abrasive particles (160) and at least one binder resin (140). The tie layer (120) comprises an at least partially cured blend of, on a solids basis, from 50 to 99 parts by weight of at least one styrene-butadiene copolymer latex and from 1 to 50 parts by weight of at least one resorcinol-formaldehyde resin. A treated backing (110) comprising polyester having the preceding tie layer (120) directly bound thereto is also disclosed.Type: ApplicationFiled: October 1, 2019Publication date: December 16, 2021Inventors: Ernest L. Thurber, Yu Yang, Junting Li, Liming Song, Stephen M. Sanocki, Yuyang Liu, Michelle L. Conklin, Morgan A. Priolo, Amelia W. Koenig, Yaohua Gao
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Publication number: 20210380857Abstract: A plurality of supported abrasive particles wherein each supported abrasive particle respectively comprises an abrasive platelet member having a major surface and having at least one crushed support member securely bonded to and proximate the major surface. Abrasive articles containing the supported abrasive particles, and methods of making supported abrasive particles are also disclosed.Type: ApplicationFiled: October 1, 2019Publication date: December 9, 2021Inventors: Yuyang LIU, Chainika JANGU, Negus B. ADEFRIS, Ernest L. THURBER, Bradford B. WRIGHT, Geoffrey I. WILSON, Junting LI, Amelia W. KOENIG, Steven J. KEIPERT
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Publication number: 20210317282Abstract: Various embodiments disclosed relate to pore inducers and porous abrasive forms made using the same. In various embodiments, the present invention provides a method of forming a porous abrasive form including heating an abrasive composition including pore inducers to form the porous abrasive form. During the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form.Type: ApplicationFiled: June 24, 2021Publication date: October 14, 2021Inventors: Brian D. Goers, Mark A. Lukowski, Walter Flaschberger, Ernest L. Thurber, John E. Gozum