US 12,031,083 B2
Abrasive articles and methods for forming same
Alexander Nashed, Norderstedt (DE); Amandine Martin, Lyons (FR); Peter Janeczek, Finnentrop (DE); Simone Schaefer, Höchberg (DE); Nilanjan Sarangi, Shrewsbury, MA (US); Guangyong Lin, Shrewsbury, MA (US); and Arthur Turkin, Würzburg (DE)
Assigned to SAINT-GOBAIN ABRASIVES, INC., Worcester, MA (US); and SAINT-GOBAIN ABRASIFS, Conflans-Sainte-Honorine (FR)
Filed by SAINT-GOBAIN ABRASIVES, INC., Worcester, MA (US); and SAINT-GOBAIN ABRASIFS, Conflans-Sainte-Honorine (FR)
Filed on Jun. 30, 2022, as Appl. No. 17/810,335.
Claims priority of provisional application 63/216,838, filed on Jun. 30, 2021.
Prior Publication US 2023/0002656 A1, Jan. 5, 2023
Int. Cl. C09K 3/14 (2006.01); B24D 3/28 (2006.01); B24D 3/34 (2006.01); B24D 18/00 (2006.01)
CPC C09K 3/1436 (2013.01) [B24D 3/28 (2013.01); B24D 3/34 (2013.01); B24D 18/0072 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An abrasive article comprising:
a body including:
a first portion comprising first abrasive particles contained within a first bond material including an inorganic material;
a second portion comprising second abrasive particles contained within a second bond material comprising an organic material comprising epoxy, wherein the second abrasive particles comprise an average particle size D50AP2 of at least 2 microns and at most 20 microns; and D10 of at least 0.5 microns and at most 4 microns or D90 of at least 9 microns and at most 34 microns or both; and
a central opening extending in an axial direction of the body through the first portion and through the second portion,
wherein:
the central opening comprises a circumferential surface defining an inner diameter of the body, wherein the circumferential surface is defined by at least a portion of the first portion and at least a portion of the second portion;
the second portion is coupled to the first portion in a radial plane; and
the second portion comprises an elongation-at-fracture of less than 2.7%.