The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2020
Filed:
Oct. 05, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Jaime A. Martinez, Woodbury, MN (US);
Thomas J. Nelson, St. Paul, MN (US);
Mark A. Lukowski, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
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.