US 11,691,248 B2
Abrasive articles including an anti-loading size layer
Lan Hong Liu, Rosemount, MN (US); Thomas P. Klun, Lakeland, MN (US); Jing Chen, Newark, CA (US); Thomas W. Floyd, St. Paul, MN (US); Bathsheba E. Chong Conklin, St. Paul, MN (US); and Adriana C. Gorgan, London (CA)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 16/955,592
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 19, 2018, PCT No. PCT/IB2018/060376
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/123335, PCT Pub. Date Jun. 27, 2019.
Claims priority of provisional application 62/698,729, filed on Jul. 16, 2018.
Claims priority of provisional application 62/608,350, filed on Dec. 20, 2017.
Prior Publication US 2020/0338692 A1, Oct. 29, 2020
Int. Cl. B24D 18/00 (2006.01); B24D 3/28 (2006.01); B24D 11/02 (2006.01); B24D 3/34 (2006.01)
CPC B24D 18/0072 (2013.01) [B24D 3/28 (2013.01); B24D 3/346 (2013.01); B24D 11/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An abrasive article comprising:
a backing comprising a first major surface and an opposing second major surface;
an abrasive layer bonded to at least a portion of the first major surface, the abrasive layer comprising abrasive particles retained in a make layer; and
an anti-loading size layer at least partially disposed on the abrasive layer and comprising a cured size precursor, wherein the size precursor comprises a urea formaldehyde size binder at a concentration of at least 20 percent by weight of the precursor and a modified polyethylene wax at a concentration of no greater than about 20 percent by weight of the precursor.