Coated abrasive articles and methods of making coated abrasive articles
US11981000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Jun 23, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D2203/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A coated abrasive article comprises a backing having first and second opposed major surfaces. A make layer is bonded to the first major surface. Agglomerate grinding aid particles are directly bonded to the make layer. At least a portion of the agglomerate grinding aid particles comprise grinding aid particles retained in a binder, and are arranged according to an open predetermined pattern. Abrasive particles are directly bonded to the make layer in spaces between the agglomerate grinding aid particles. A size layer is directly bonded to the make layer, agglomerate grinding aid particles, and abrasive particles. A method of making a coated abrasive article, in which the agglomerate grinding aid particles are deposited onto a curable make layer precursor prior to depositing abrasive particles onto the curable make layer precursor in spaces between the agglomerate grinding aid particles is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.