Patent ID: 11970650
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 12:
13. A plurality of shaped ceramic abrasive particles each comprising:
a first surface having a generally triangular perimeter having three corners and three inwardly extending regions, wherein each inwardly extending region comprises two substantially straight edges, wherein each inwardly extending region terminates at two of the three corners of the perimeter, and wherein each of the three corners defines an acute interior angle in a range from 30 degrees to 50 degrees;
a second surface opposite, but not contacting, the first surface, wherein the second surface has substantially the same shape as the first surface; and
a peripheral surface disposed between and connecting the first and second surfaces;
wherein at least one inwardly extending region has a maximum depth that is at least 5 percent of a maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth;
wherein the shaped ceramic abrasive particles consists essentially of a ceramic material, wherein the ceramic material comprises alpha alumina.