Patents by Inventor Michael J. Annen
Michael J. Annen 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: 11865673Abstract: The disclosure relates to layers comprising a body having a thickness, T, comprising a curable composition comprising a polymerizable epoxy-acrylate resin composition and abrasive particles at least partially embedded in the polymerizable epoxy-acrylate resin composition, wherein the body includes a plurality of void spaces free of the curable composition extending into the body from the first major surface and the depth of the plurality of void spaces is at least 10 percent of thickness T. The disclosure also relates to cured compositions formed from such curable compositions and, in turn, abrasive articles made from such cured compositions as well as methods for making abrasive articles.Type: GrantFiled: December 6, 2018Date of Patent: January 9, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Chainika Jangu, Michael J. Annen, Deborah J. Eilers, David M. Mahli, Caroline E. Morel, Kathleen S. Shafer, Gregory P. Sorenson
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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: 20230278170Abstract: An abrasive article comprises a porous substrate having openings extending through the porous substrate between first and second opposed major surfaces. An abrasive coating is disposed on only a portion of a first major surface of the porous substrate. The abrasive coating comprises a functional layer disposed on only a portion of a first major surface of the porous substrate, a make layer disposed on at least a portion of the functional layer opposite the porous substrate, and abrasive particles. The functional layer and the make layer independently comprise chemically crosslinked binders. The functional layer fully occludes a first portion the openings and does not fully occlude a second portion of the openings, which permits passage of abraded swarf through the abrasive article. Methods of making the abrasive article are also disclosed.Type: ApplicationFiled: July 7, 2021Publication date: September 7, 2023Inventors: Junting Li, Jing Zhang, Kui Chen-Ho, Michael J. Annen, Yuyang Liu, Ann M. Gilman, Kevin T. Reddy
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Publication number: 20230226664Abstract: A composite abrasive article comprises an open mesh backing member having first and second major surfaces and coated abrasive members secured to the first major surface. Independently, each coated abrasive member respectively comprises an abrasive layer comprising abrasive particles secured to a coated abrasive backing by at least one binder material. A method of making a composite abrasive article is also disclosed.Type: ApplicationFiled: May 17, 2021Publication date: July 20, 2023Inventors: John A. Worrell, Schoen A. Schuknecht, Michael J. Annen
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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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Publication number: 20230001544Abstract: A coated abrasive article is presented. The coated abrasive article includes a backing having first and second opposed major surfaces. The coated abrasive article also includes a make layer bonded to the first major surface. The coated abrasive article also includes abrasive particles directly bonded to the make layer. The abrasive particles are at least partially embedded in the make layer. The coated abrasive article also includes a size layer directly bonded to the make layer, and abrasive particles. One of the make layer and size layer comprise a patterned coating.Type: ApplicationFiled: December 7, 2020Publication date: January 5, 2023Inventors: Yuyang Liu, Michael J. Annen, Jaime A. Martinez, Junting Li, Jing Zhang, Daniel A. Billig
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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: 20210170547Abstract: The disclosure relates to layers comprising a body having a thickness, T, comprising a curable composition comprising a polymerizable epoxy-acrylate resin composition and abrasive particles at least partially embedded in the polymerizable epoxy-acrylate resin composition, wherein the body includes a plurality of void spaces free of the curable composition extending into the body from the first major surface and the depth of the plurality of void spaces is at least 10 percent of thickness T. The disclosure also relates to cured compositions formed from such curable compositions and, in turn, abrasive articles made from such cured compositions as well as methods for making abrasive articles.Type: ApplicationFiled: December 6, 2018Publication date: June 10, 2021Inventors: Chainika Jangu, Michael J. Annen, Deborah J. Eilers, David M. Mahli, Caroline E. Morel, Kathleen S. Shafer, Gregory P. Sorenson
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Publication number: 20200298373Abstract: An abrasive article comprising an attachment layer and an abrasive layer. The attachment layer comprises a porous backing having a first major surface, an opposed second major surface, and a first plurality of voids extending from the first major surface to the second major surface. The abrasive layer has a third major surface and an opposed fourth major surface and comprises a cured composition, abrasive particles at least partially embedded in the cured composition, and a second plurality of voids extending from the third major surface to the fourth major surface. The first major surface of the attachment layer is adjacent the third major surface of the abrasive layer, and the pattern of the second plurality of voids is independent of the pattern of the first plurality of voids.Type: ApplicationFiled: December 6, 2018Publication date: September 24, 2020Inventors: Michael J. Annen, Deborah J. Eilers, Chainika Jangu, Caroline E. Morel, Kathleen S. Shafer
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Patent number: 10183379Abstract: Described herein is an improved abrasive material (300) in which the cutting performance is orientation-independent. The abrasive material (300) comprises an abrasive structure (310) including a plurality of elongate abrasive elements (320, 330) aligned to be define a first open square. A plurality of pyramidal abrasive elements (340, 350) arranged in a second open square are located within the first open square defined by the elongate elements (320, 330).Type: GrantFiled: May 19, 2015Date of Patent: January 22, 2019Assignee: 3M Innovative Properties CompanyInventors: Christopher J. Carter, Michael J. Annen, Gordon A. Kuhnley
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Publication number: 20170259403Abstract: Described herein is an improved abrasive material (300) in which the cutting performance is orientation-independent. The abrasive material (300) comprises an abrasive structure (310) including a plurality of elongate abrasive elements (320, 330) aligned to be define a first open square. A plurality of pyramidal abrasive elements (340, 350) arranged in a second open square are located within the first open square defined by the elongate elements (320, 330).Type: ApplicationFiled: May 19, 2015Publication date: September 14, 2017Applicant: 3M Innovative Properties CompanyInventors: Christopher J. Carter, Michael J. Annen, Gordon A. Kuhnley
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Patent number: 9168636Abstract: Provided are abrasive articles having a plurality of elongated channels extending across its working surface and intersecting with each other. These channels provide hinge points that enhance flexibility of the article along two or more directions. Optionally, the abrasive article includes a flexible attachment layer, along with apertures that penetrate through the attachment layer located at the intersection points of the channels. The enhanced flexibility allows the abrasive article to easily access recessed areas of the workpiece and facilitates applying even pressure across convex and concave surfaces. The channels assist in segregating dust particles from the abrading operation, and the optional apertures can be advantageously connected to a vacuum source for evacuation of the dust particles from the channels.Type: GrantFiled: December 13, 2010Date of Patent: October 27, 2015Assignee: 3M Innovative Properties CompanyInventors: Charles R. Wald, Shigeaki Dohgoshi, Charles J. Studiner, IV, Jeffrey R. Janssen, Michael J. Annen, Paul D. Graham
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Publication number: 20120252329Abstract: Provided are abrasive articles having a plurality of elongated channels extending across its working surface and intersecting with each other. These channels provide hinge points that enhance flexibility of the article along two or more directions. Optionally, the abrasive article includes a flexible attachment layer, along with apertures that penetrate through the attachment layer located at the intersection points of the channels. The enhanced flexibility allows the abrasive article to easily access recessed areas of the workpiece and facilitates applying even pressure across convex and concave surfaces. The channels assist in segregating dust particles from the abrading operation, and the optional apertures can be advantageously connected to a vacuum source for evacuation of the dust particles from the channels.Type: ApplicationFiled: December 13, 2010Publication date: October 4, 2012Inventors: Charles R. Wald, Shigeaki Dohgoshi, Charles J. Studiner, IV, Jeffrey R. Janssen, Michael. J. Annen, Paul D. Graham
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Patent number: 8057281Abstract: Methods of abrading surfaces by rotationally reciprocating abrasive surfaces in contact with the surfaces, abrasive articles for use in rotationally reciprocating tools, and methods of removing defects in a surface, where the methods include sanding using a rotationally reciprocating abrasive surface followed by one or more polishing operations are disclosed.Type: GrantFiled: March 20, 2008Date of Patent: November 15, 2011Assignee: 3M Innovative Properties CompanyInventors: Michael J. Annen, Peter A. Felipe, Sr., Lowell W. Holland, Adam M. Spah
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Publication number: 20100184363Abstract: Fixed abrasive articles comprising a substrate having an abrasive surface and an attachment surface, and at least one engaging projection are described. Generally, the engaging projection comprises a top surface having a top surface edge and an attachment end attached to the attachment surface of the substrate. The area of attachment between the attachment end and the attachment surface is bounded by an attachment perimeter. The engaging projection also comprises a mantle surface extending from the top surface edge to the attachment perimeter. At least one profile of the mantle surface is substantially convex from a point of maximum width along the profile to the attachment perimeter.Type: ApplicationFiled: September 11, 2007Publication date: July 22, 2010Inventors: Jason A. Chesley, Dennis G. Welygan, Michael J. Annen
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Patent number: 7618306Abstract: Conformable abrasive article comprising: a backing having a first major surface; a deformable material contacting a central portion of the first major surface; an elastic member affixed to the first major surface of the backing and together with the backing enclosing the deformable material; and an abrasive member affixed to the elastic member, wherein the abrasive member comprises abrasive particles and a binder; and methods of making and using the same.Type: GrantFiled: September 22, 2005Date of Patent: November 17, 2009Assignee: 3M Innovative Properties CompanyInventors: Peter A. Felipe, Sr., James W. Schutz, Gregory A. Koehnle, Michael J. Annen, Albert I. Everaerts
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Publication number: 20080233837Abstract: Methods of abrading surfaces by rotationally reciprocating abrasive surfaces in contact with the surfaces, abrasive articles for use in rotationally reciprocating tools, and methods of removing defects in a surface, where the methods include sanding using a rotationally reciprocating abrasive surface followed by one or more polishing operations are disclosed.Type: ApplicationFiled: March 20, 2008Publication date: September 25, 2008Inventors: Michael J. Annen, Peter A. Felipe, Lowell W. Holland, Adam M. Spah
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Patent number: 7399184Abstract: The invention is a display article having a flexible substrate which includes a writing surface capable of being used as a dry erase surface. A peripheral edge extends around the writing surface. A flexible framing strip is affixed to the writing surface at a position proximate to the peripheral edge. One embodiment of the display article can be made by forming a substrate having a writing surface. The substrate defines a periphery edge, a back surface, and a plurality of mushroom shaped hooks extending from the back surface substantially over the entire back surface. The writing surface is capable of being used as a dry erase surface. At least a portion of the periphery of the writing substrate is folded over to form a framing strip having a plurality of exposed mushroom shaped hooks. The framing strip is secured to the writing surface.Type: GrantFiled: June 23, 2005Date of Patent: July 15, 2008Assignee: 3M Innovative Properties CompanyInventors: Jonathan F. Hester, Michael J. Annen, Brent R. Hansen, Timothy L. Quinn, John J. Emmel
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Patent number: D606827Type: GrantFiled: June 18, 2009Date of Patent: December 29, 2009Assignee: 3M Innovative Properties CompanyInventors: Peter J Fritz, Michael J Annen, Peter A Felipe, Sr., Nathan A. Abel, Adam M Spah, Matthew D. Chaffee, Lowell W Holland, Dave J Wilk, Timothy T Beyer
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Patent number: D610430Type: GrantFiled: June 18, 2009Date of Patent: February 23, 2010Assignee: 3M Innovative Properties CompanyInventors: Peter J. Fritz, Nathan A. Abel, Matthew D. Chaffee, Michael J. Annen, Peter A. Felipe, Sr., Adam M. Spah, Wesley A. Raider