Method of making a coated abrasive article
US11724363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2019 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D18/0072
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making a coated abrasive article includes at least four steps. In step a), a web is provided comprising a backing having a make layer precursor disposed thereon. The web moves along a web path in a downweb direction, and the web has a crossweb direction that is perpendicular to the downweb direction. The make layer precursor comprises a first curable binder precursor; In step b) an applied magnetic field is provided. In step c), a mixture of magnetizable non-magnetizable particles is passed through the applied magnetic field and onto the make layer precursor such that the magnetizable and non-magnetizable particles are predominantly deposited onto the web in a drop zone according to a predetermined order. At least one of the magnetizable particles or the non-magnetizable particles comprises abrasive particles. In step d), the make layer precursor is at least partially cured to provide a make layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.