A one-piece abrasive sheet and method of manufacture. The abrasive pad has a planar sheet portion with a plurality abrasive protrusion extending therefrom. The protrusions are intimately molded with the planar sheet portion to form a one-piece sheet. Thermoplastic and abrasive grit mixture may be used...http://www.google.es/patents/US5281244?utm_source=gb-gplus-sharePatente US5281244 - Flexible abrasive pad with ramp edge surface
