A method for making an abrasive article having at least two abrasive coatings having different abrasive natures. The abrasive natures can differ, for example, by abrasive particle size, abrasive particle type, abrasive particle shape, filler, surfactant, or coupling agent. In another embodiment, the...http://www.google.es/patents/US6080215?utm_source=gb-gplus-sharePatente US6080215 - Abrasive article and method of making such article
Abrasive article and method of making such article
