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公开(公告)号：US20230405766A1
公开(公告)日：2023-12-21
申请号：US18250294
申请日：2021-09-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Junting Li , Yu Yang , Jing Zhang , Michael J. Annen , Ernest L. Thurber , Eric W. Nelson , Mark A. Lukowski , Chunjie Zhang
CPC classification number: B24D11/001 , B24D3/285 , C08L61/14 , B24D3/344 , C09K3/1409
Abstract: 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.
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公开(公告)号：US20220016747A1
公开(公告)日：2022-01-20
申请号：US17311139
申请日：2019-12-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Junting Li , Yuyang Liu , Mark A. Lukowski , Ernest L. Thurber , Brian G. Koethe , Ann M. Hawkins , Geoffrey I. Wilson
Abstract: 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.
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公开(公告)号：US20210317282A1
公开(公告)日：2021-10-14
申请号：US17304653
申请日：2021-06-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brian D. Goers , Mark A. Lukowski , Walter Flaschberger , Ernest L. Thurber , John E. Gozum
Abstract: 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.
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公开(公告)号：US20190283216A1
公开(公告)日：2019-09-19
申请号：US16318655
申请日：2017-07-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark A. Lukowski , Brian D. Goers , Negus B. Adefris , Scott W. Peterson
Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.
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公开(公告)号：US11607776B2
公开(公告)日：2023-03-21
申请号：US16318655
申请日：2017-07-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark A. Lukowski , Brian D. Goers , Negus B. Adefris , Scott W. Peterson
Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.
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Patent Agency Ranking
公开(公告)号：US11597860B2
公开(公告)日：2023-03-07
申请号：US16338756
申请日：2017-10-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Miller , Sergei Manuilov , Naiyong Jing , Taisiya Skorina , Aaron K. Nienaber , Joseph B. Eckel , Thomas J. Anderson , Thomas J. Nelson , Mark A. Lukowski , Louis S. Moren , Don V. West
Abstract: Magnetizable abrasive particles are described comprising ceramic particles having outer surfaces comprising a coating of unsintered polyion and magnetic particles bonded to the polyion. In favored embodiments, the magnetic particles have a magnetic saturation of at least 10, 15, 20, 25, 30, 35, 40, 45 or 50 emu/gram. In another embodiment, an abrasive article is described comprising a plurality of magnetizable abrasive particles as described herein retained in a binder material. Also described are method of making magnetizable abrasive particles and methods of making an abrasive article comprising magnetizable abrasive particles.
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7.发明申请公开(公告)号：US20190270922A1
公开(公告)日：2019-09-05
申请号：US16344289
申请日：2017-09-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Negus B. Adefris , Gary M. Palmgren , Joseph B. Eckel , Aaron K. Nienaber , Thomas J. Nelson , Mark A. Lukowski , Vincent R. Jansen
Abstract: Magnetizable agglomerate abrasive particle can comprise constituent abrasive particles retained in a binder material. The magnetizable particles and the constituent abrasive particles are unassociated, and wherein the magnetizable particles have a Mohs hardness of 6 or less. Magnetizable agglomerate abrasive particles can also comprise magnetizable abrasive particles retained in a binder material, wherein each magnetizable abrasive particle comprises a respective ceramic body and a magnetizable layer disposed on at least a portion of the ceramic body. Pluralities of abrasive particles are also disclosed. Methods of making, and abrasive articles including the magnetizable agglomerate particles are also disclosed.
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公开(公告)号：US20170334039A1
公开(公告)日：2017-11-23
申请号：US15525457
申请日：2015-11-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark A. Lukowski
CPC classification number: B24D3/18 , B24D3/32 , B24D3/342 , B24D18/00 , B24D18/0009 , C09K3/1409
Abstract: Methods for manufacturing bonded abrasive articles, for example vitrified bonded grinding wheels. A bondable abrasive composition is prepared including abrasive particles, a binder medium and a gamma-pyrone pore inducing material, such as ethyl maltol. A precursor abrasive structure is formed from the composition. The gamma-pyrone pore inducing material is removed from the precursor abrasive structure to provide a porous precursor abrasive structure that is further processed to provide a bonded abrasive article. In some embodiments, the binder medium includes a vitreous bonding material, and the bonded abrasive article is a porous vitrified bonded grinding wheel.
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公开(公告)号：US20240033880A1
公开(公告)日：2024-02-01
申请号：US18256947
申请日：2021-11-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Miller , Joseph B. Eckel , Ann M. Hawkins , Thomas J. Nelson , Junting Li , Mark A. Lukowski
CPC classification number: B24D18/0072 , B24D11/001 , B24D3/342 , C09K3/1409
Abstract: Grinding aid particles for abrasive articles. The grinding aid particles include a core particle having a Mohs hardness of less than 7 and a coating on at least a portion of the surface of the core. The coating comprises a binder and at least one grinding agent. The grinding aid particles can be incorporated in the make coat, size coat and/or supersize coat of an abrasive article to improve abrasive performance.
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10.发明授权公开(公告)号：US11478899B2
公开(公告)日：2022-10-25
申请号：US16344697
申请日：2017-10-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark A. Lukowski , Negus B. Adefris , Scott W. Peterson , Brian D. Goers , Rebecca A. Putans , Bridgette R. Shannon , Thomas J. Nelson , Jacob S. Beveridge
Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a vitreous matrix. The shaped abrasive particles have a longest particle lineal dimension on a surface and a shortest particle dimension perpendicular to the longest particle lineal dimension, and the longest particle lineal dimension is at least twice the shortest particle dimension. The shaped abrasive agglomerate particle has a longest agglomerate lineal dimension on a surface and a shortest agglomerate dimension perpendicular to the longest agglomerate lineal dimension, and the longest agglomerate lineal dimension is at least twice the shortest agglomerate dimension. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.
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