Patent ID: 8425278

Claim:
A structured abrasive article comprising: a backing having first and second opposed major surfaces; and an abrasive layer disposed on and secured to the first major surface, wherein the abrasive layer comprises shaped abrasive composites, wherein each of the shaped abrasive composites comprises abrasive particles dispersed in a polymeric binder, and wherein each of the shaped abrasive composites independently comprises: a base disposed on the backing; a plurality of planar walls extending away from the base, wherein adjacent planar walls share a common edge, wherein each planar wall forms a first dihedral angle with the base of less than or equal to 90 degrees; and a grinding surface not in contact with the base, wherein the grinding surface has: a plurality of cusps; and a plurality planar facets that contact a recessed feature capable of being contained within a geometric plane, wherein at least a portion of the recessed feature is disposed closer to the base than each of the cusps, and wherein each cusp is a sharp point formed by an intersection of two of the planar walls and at least one of the planar facets.