Patent ID: 8038750

Claim:
A structured abrasive article comprising: a backing having first and second opposed major surfaces; a topographically structured abrasive layer secured to the backing, the topographically structured abrasive layer comprising precisely-shaped abrasive composites, wherein the precisely-shaped abrasive composites comprise abrasive particles in a cross-linked polymeric binder, and wherein the abrasive particles have a D 50 ; and a solid overlayer disposed on at least a portion of the topographically structured abrasive layer, the solid overlayer comprising eroding particles with a Mohs scale hardness of at least 4 and a water-soluble polymer, wherein the eroding particles have a D 50 that is less than or equal to the D 50 of the abrasive particles, wherein the eroding particles are present in a volume ratio of 5 to 75 percent based on the total of eroding particles and water-soluble polymer combined, and wherein there is sufficient water-soluble polymer to retain the eroding particles in a dry state.