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公开(公告)号：US20230356362A1
公开(公告)日：2023-11-09
申请号：US18029501
申请日：2021-08-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： 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
Abstract: 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.
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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：US11981000B2
公开(公告)日：2024-05-14
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
CPC classification number: B24D18/0072 , B24D3/342 , B24D3/346
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：US20220339761A1
公开(公告)日：2022-10-27
申请号：US17765709
申请日：2020-10-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yuyang Liu , Ann M. Hawkins , Geoffrey I. Wilson , Brian G. Koethe , Ernest L. Thurber , Negus B. Adefris , Junting Li , Fay T. Salmon
Abstract: 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.
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公开(公告)号：US20190329381A1
公开(公告)日：2019-10-31
申请号：US16470576
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yuyang Liu , Geoffrey I. Wilson , Junting Li , Ernest L. Thurber
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11648646B2
公开(公告)日：2023-05-16
申请号：US16470576
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yuyang Liu , Geoffrey I. Wilson , Junting Li , Ernest L. Thurber
CPC classification number: B24D11/04 , B24D3/28 , B24D18/0072 , B24D2203/00
Abstract: 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.
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公开(公告)号：US20230061952A1
公开(公告)日：2023-03-02
申请号：US17759727
申请日：2021-01-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel M. Lentz , Geoffrey I. Wilson , Thomas J. Nelson , Blake R. Rustad , Junting Li , Willam S. Maher , Gregory S. Mueller
Abstract: An abrasive article is presented that includes a first set of shaped abrasive particles with a majority of the first set of shaped abrasive particles are oriented with respect to a backing in a first orientation. The abrasive article also includes a second set of shaped abrasive particles with a majority of the second set of shaped abrasive particles are oriented with respect to the backing in a second orientation, and wherein the second orientation differs from the first orientation. The first and second set of shaped abrasive particles are embedded within a coating layer on the baking.
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公开(公告)号：US10919126B2
公开(公告)日：2021-02-16
申请号：US15736188
申请日：2016-07-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Geoffrey I. Wilson , Brian G. Koethe , Steven J. Keipert
Abstract: 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.
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公开(公告)号：US10773361B2
公开(公告)日：2020-09-15
申请号：US15735644
申请日：2016-06-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Geoffrey I. Wilson , Mark R. Nyberg , Jeffery S. Thomford , Ernest L. Thurber , Brian G. Koethe , Charles C. Drange , Robert J. Hnatyk , John T. Boden
IPC: B24B1/00 , B24D11/00 , B24D18/00 , B24D11/02 , B24D3/30 , B24D3/34 , B24D11/08 , B24D3/00 , C09K3/14
Abstract: 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.
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10.发明申请公开(公告)号：US20200223031A1
公开(公告)日：2020-07-16
申请号：US16832595
申请日：2020-03-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Geoffrey I. Wilson , Brian G. Koethe , Steven J. Keipert
Abstract: 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.
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