Method of making a coated abrasive article

A method of applying magnetizable particles onto an adherent web, the method comprising:

• a) providing a magnetizable particle coating apparatus comprising a downward sloping dispensing surface at least partially disposed within an applied magnetic field;
• b) disposing the adherent web between upper and lower magnetic members and beneath the downward sloping dispensing surface, wherein the downward sloping dispensing surface is constructed of a dimensionally stable non-magnetizable material, and wherein the web comprises a backing having a curable binder precursor layer disposed on a major surface thereof;
• c) disposing magnetizable particles onto at least a portion of the downward sloping dispensing surface within the applied magnetic field, and subsequently disposing the magnetizable particles onto the curable binder precursor layer while the adherent web is advanced from an upweb position to a downweb position, wherein, at the location where the magnetizable particles are disposed onto the curable binder precursor layer, the applied magnetic field has magnetic field lines that are oriented at an angle of from 10 to 80 degrees or from 100 to 170 degrees with respect to the major surface of the adherent web;
• and
• d) at least partially curing the curable binder precursor layer to fix the orientations of the magnetizable particles.

A method of applying magnetizable particles onto an adherent web, the method comprising:

• a) providing a magnetizable particle coating apparatus comprising a downward sloping dispensing surface at least partially disposed within an applied magnetic field;
• b) disposing the adherent web between upper and lower magnetic members and beneath the downward sloping dispensing surface, wherein the downward sloping dispensing surface is constructed of a dimensionally stable non-magnetizable material, and wherein the web comprises a backing having a curable binder precursor layer disposed on a major surface thereof;
• c) disposing magnetizable particles onto at least a portion of the downward sloping dispensing surface within the applied magnetic field, and subsequently disposing the magnetizable particles onto the curable binder precursor layer while the adherent web is advanced from an upweb position to a downweb position, wherein, at the location where the magnetizable particles are disposed onto the curable binder precursor layer, the web travels along an upwardly sloping path;
• and
• d) at least partially curing the curable binder precursor layer to fix the orientations of the magnetizable particles.