公开(公告)号：US11078345B2

公开(公告)日：2021-08-03

申请号：US16099728

申请日：2017-05-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Brian D. Goers ,  Mark A. Lukowski ,  Walter Flaschberger ,  Ernest L. Thurber ,  John E. Gozum

IPC: B24D3/10 ,  B24D3/18 ,  B24D18/00 ,  C08J9/26 ,  B24D3/32 ,  C08F20/00 ,  C08F122/14

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.

公开(公告)号：US10947432B2

公开(公告)日：2021-03-16

申请号：US16343892

申请日：2017-10-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Aaron K. Nienaber ,  Joseph B. Eckel ,  Thomas J. Anderson ,  Thomas J. Nelson ,  Mark A. Lukowski ,  Louis S. Moren ,  Don V. West

IPC: C09K3/14 ,  C04B35/111 ,  C04B35/628

Abstract: A method of making magnetizable abrasive particles includes: moistening the outer surfaces of ceramic particles with waterglass to provide moistened ceramic particles. Magnetizable particles are contacted with the moistened ceramic particles to provide powder-coated ceramic particles. The powder-coated ceramic particles are heated to at least a temperature sufficient to bond the magnetizable particles of the powder-coated ceramic particles to the respective ceramic particles thereby providing the magnetizable abrasive particles. On a respective basis, each magnetizable abrasive particle comprises a respective ceramic particle having a magnetizable particles bonded thereto.

公开(公告)号：US10350732B2

公开(公告)日：2019-07-16

申请号：US15525457

申请日：2015-11-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark A. Lukowski

IPC: B24D3/18 ,  B24D3/32 ,  B24D3/34 ,  B24D18/00 ,  C09K3/14

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.

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

IPC: B24D18/00 ,  B24D3/34

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.

公开(公告)号：US11795287B2

公开(公告)日：2023-10-24

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

IPC: C08J9/26 ,  B24D18/00 ,  B24D3/10 ,  B24D3/18 ,  B24D3/32 ,  C08F20/00 ,  C08F122/14

CPC classification number: C08J9/26 ,  B24D3/10 ,  B24D3/18 ,  B24D3/32 ,  B24D18/00 ,  B24D18/0009 ,  C08F20/00 ,  C08F122/14 ,  C08J2201/042 ,  C08J2201/0442 ,  C08J2205/10 ,  C08J2333/00 ,  C08J2335/02

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.

公开(公告)号：US20230294247A1

公开(公告)日：2023-09-21

申请号：US18000522

申请日：2021-05-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yuyang Liu ,  Fay T. Salmon ,  Maiken Givot ,  Dwight D. Erickson ,  Negus B. Adefris ,  Mark A. Lukowski

IPC: B24D11/00 ,  B24D3/00

CPC classification number: B24D11/001 ,  B24D3/005

Abstract: A multiphase abrasive particle precursor is disclosed. The precursor includes a first phase of a first material with a substantially constant first composition throughout the first phase. The precursor also includes a second phase, of a second material, with a substantially constant composition throughout the second phase. The precursor includes an interface between the first and second phases. The multiphase abrasive particle precursor is a shaped abrasive particle precursor.

公开(公告)号：US10655038B2

公开(公告)日：2020-05-19

申请号：US16344304

申请日：2017-10-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jaime A. Martinez ,  Thomas J. Nelson ,  Mark A. Lukowski

IPC: C09K3/14 ,  B24D11/00 ,  H01F41/16

Abstract: A method of making magnetizable abrasive particles includes providing a slurry layer disposed on a substrate. The slurry layer has an exposed surface and comprises magnetic particles, a binder precursor, and a liquid vehicle. Abrasive particles are electrostatically contacted with the slurry layer such that they are aligned substantially oriented perpendicular to the surface of the substrate, and are partially embedded within the slurry layer. The liquid vehicle is at least partially removed from the slurry layer and the binder precursor is converted into a binder to provide a magnetizable layer comprising the magnetic particles partially embedded in the binder. The magnetizable abrasive particles are separated from the releasable substrate. Each magnetizable abrasive particle respectively comprises a portion of the magnetizable layer disposed on a portion of an abrasive particle.

公开(公告)号：US20200071584A1

公开(公告)日：2020-03-05

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

IPC: C09K3/14 ,  C04B35/10 ,  C04B35/63 ,  C04B35/628 ,  H01F1/28 ,  H01F1/37 ,  B24D3/14

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.

公开(公告)号：US20200047313A1

公开(公告)日：2020-02-13

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

IPC: B24D3/34 ,  B24D18/00 ,  C09K3/14

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.

公开(公告)号：US20230220255A1

公开(公告)日：2023-07-13

申请号：US18000521

申请日：2021-05-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yuyang Liu ,  Fay T. Salmon ,  Maiken Givot ,  Mark A. Lukowski ,  Dwight D. Erikson ,  Negus B. Adefris

IPC: C09K3/14

CPC classification number: C09K3/1409

Abstract: Various embodiments disclosed relate to an incomplete shaped abrasive particle, articles containing the same, and methods of manufacture.