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:
Mar. 07, 2023
Filed:
Oct. 24, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Adam D. Miller, St. Paul, MN (US);
Sergei Manuilov, Stillwater, MN (US);
Naiyong Jing, St. Paul, MN (US);
Taisiya Skorina, Woodbury, MN (US);
Aaron K. Nienaber, Maplewood, MN (US);
Joseph B. Eckel, Vadnais Heights, MN (US);
Thomas J. Anderson, Cottage Grove, MN (US);
Thomas J. Nelson, Woodbury, MN (US);
Mark A. Lukowski, St. Paul, MN (US);
Louis S. Moren, Oakdale, MN (US);
Don V. West, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
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.