Patent ID: 8206202
Filing Date: 2012-06-26
Classification: B24D,Y10T

Abstract:
1. A method of producing a flexible grinding product, which comprises a flexible underlay consisting of at least one abrasive receiving upper layer having first and second surfaces and a lower layer, the method comprising sequential steps of: a) first perforating the abrasive receiving layer with through-holes spaced over and through the first and second surfaces thereof; b) then laminating the second surface of the abrasive receiving upper layer to said lower layer; c) then applying adhesive selectively to the first surface of the remaining exposed surface of the abrasive receiving upper layer d) then applying abrasive to said adhesive of exposed surface, thereby adhesively bonding the abrasive to the abrasive receiving upper layer; whereby the through holes remain free of abrasive and retain sharp edged sidewalls created when perforated.