	US 11,697,753 B2
	Method of treating a surface, surface-modified abrasive particles, and resin-bond abrasive articles
Hae-Seung H. Lee, Woodbury, MN (US); Melissa C. Schillo-Armstrong, Stillwater, MN (US); and Babu N. Gaddam, Woodbury, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 16/973,281
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Jun. 6, 2019, PCT No. PCT/IB2019/054741 § 371(c)(1), (2) Date Dec. 8, 2020, PCT Pub. No. WO2019/239267, PCT Pub. Date Dec. 19, 2019.
Claims priority of provisional application 62/684,833, filed on Jun. 14, 2018.
Prior Publication US 2021/0246345 A1, Aug. 12, 2021
Int. Cl. C09K 3/14 (2006.01); B24D 3/00 (2006.01); B24D 18/00 (2006.01)

CPC C09K 3/1436 (2013.01) [B24D 3/007 (2013.01); B24D 18/0072 (2013.01)]

20 Claims

1. A method of treating a surface of an abrasive particle having chemically-bound surface hydroxyl groups, the method comprising:

providing an adhesion promoter comprising at least one ring-opened adduct of:

a) a polyepoxide having at least two epoxy groups;

b) an aminosilane represented by the formula

HNR¹R²

wherein R¹and R²independently represent —Z—SiL₃, wherein each Z independently represents a divalent linking group having from 1 to 12 carbon atoms, and wherein each L independently represents a hydrolyzable group, and

c) an isocyanatosilane represented by the formula

O═C═N—Z—SiL₃

wherein Z and L are as previously defined; and

contacting the adhesion promoter with the surface of the abrasive particle.