Rigid backsize to prevent fiber disc curling
US12059773B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Nov 20, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D3/344
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Systems and methods include providing a coated abrasive article with a substrate formed from a plurality of hygroscopic fibers, an abrasive layer comprising a make coat, a size coat, a supersize coat, or combinations thereof disposed on a first side of substrate, and an anti-curl layer disposed on a second side of the substrate. The polymer-based anti-curl layer allows the coated abrasive article to achieve a change in curl between −5 millimeters and 25 millimeters, the change in curl being expressed as the curl of the coated abrasive article in millimeters at 90% relative humidity minus the curl of the coated abrasive article in millimeters at 20% relative humidity. The coated abrasive article exhibits substantially no loss of grinding performance, burst speed, or a combination thereof as compared to coated abrasive articles free of the anti-curl layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.