US 12,466,032 B2
Method of making a coated abrasive article
Polly H. R. Keen, Cambridge (GB)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/910,313
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Mar. 31, 2021, PCT No. PCT/IB2021/052696
§ 371(c)(1), (2) Date Sep. 8, 2022,
PCT Pub. No. WO2021/198951, PCT Pub. Date Oct. 7, 2021.
Claims priority of provisional application 63/004,920, filed on Apr. 3, 2020.
Prior Publication US 2023/0118971 A1, Apr. 20, 2023
Int. Cl. B24D 11/00 (2006.01); B24D 3/00 (2006.01); B24D 3/28 (2006.01)
CPC B24D 11/001 (2013.01) [B24D 3/002 (2013.01); B24D 3/28 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of making a coated abrasive article, the method comprising:
disposing abrasive composite precursors on a major surface of a water-soluble film to provide a coated film, wherein the abrasive composite precursors comprise abrasive particles dispersed in a hardenable binder precursor;
lightly contacting the abrasive composite precursors with a first major surface of a porous fibrous backing to provide a first laminate structure;
hardening the hardenable binder precursor to provide a second laminate structure comprising abrasive composites; and
dissolving the water-soluble film to provide the coated abrasive article.