US 12,350,791 B2
Mesh abrasive and method of making the same
Yuyang Liu, St. Paul, MN (US); Junting Li, Woodbury, MN (US); and Jaime A. Martinez, Kissimmee, FL (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/779,027
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 2, 2020, PCT No. PCT/IB2020/061380
§ 371(c)(1), (2) Date May 23, 2022,
PCT Pub. No. WO2021/111327, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/944,894, filed on Dec. 6, 2019.
Prior Publication US 2023/0347474 A1, Nov. 2, 2023
Int. Cl. B24D 11/00 (2006.01)
CPC B24D 11/005 (2013.01) [B24D 11/008 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of making a mesh abrasive product, the method comprising sequentially:
providing a production tool having a mold surface defining a plurality of shaped cavities;
filling at least some of the shaped cavities with an abrasive composite precursor slurry, wherein the abrasive composite precursor slurry comprises abrasive particles dispersed within a curable binder precursor;
contacting the mold surface with an open mesh backing comprising interwoven threads defining openings, and having first and second opposed major sides;
ultrasonically vibrating the abrasive composite precursor slurry;
curing the curable binder precursor by exposing it to sufficient actinic electromagnetic radiation to provide isolated shaped abrasive composites contacting and secured to the first major side of the open mesh backing; and
separating the mesh abrasive product from the production tool.