ABRASIVE ARTICLE WITH SEPARATELY FORMED FRONT SURFACE PROTRUSIONS CONTAINING A GRINDING AID AND METHODS OF MAKING AND USING

摘要

An abrasive article including (i) a first backing (20), (ii) a plurality of protrusions (30) attached to the first surface (21) of the first backing (20) and including a grinding aid, wherein the first surface (21) of the first backing (20) is contoured by the protrusions so as to define a plurality of peaks and valleys, and (iii) a coating of abrasive particles (60) adhered to the contoured first surface (14) of the first backing (20) so as to cover at least a portion of both the peaks and the valleys.