Invention Grant
- Patent Title: Method of making magnetizable abrasive particles
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Application No.: US16344304Application Date: 2017-10-05
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Publication No.: US10655038B2Publication Date: 2020-05-19
- Inventor: Jaime A. Martinez , Thomas J. Nelson , Mark A. Lukowski
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Bradford B. Wright
- International Application: PCT/US2017/055335 WO 20171005
- International Announcement: WO2018/080755 WO 20180503
- Main IPC: C09K3/14
- 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.
Public/Granted literature
- US20190270921A1 METHOD OF MAKING MAGNETIZABLE ABRASIVE PARTICLES Public/Granted day:2019-09-05
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