Method of making magnetizable abrasive particles
US10655038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2017 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Oct 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.