Patent ID: 9156134
Filing Date: 2015-10-13
Classification: B24D,B29C,B32B,B41M,B44C,H01L,Y10T

Abstract:
1. A method for preparing an abrasive sheet which comprises: (1) coating an abrasive material-containing slurry on a concave face of an embossed first substrate and then pre-drying with heat the coating layer to provide a first substrate having an abrasive material coating layer on its embossed surface; (2) coating an adhesive on one side of a second substrate to provide an adhesive layer coated second substrate; (3) combining the first substrate having the abrasive material coating layer and the adhesive layer coated second substrate such that the abrasive material coating layer of the first substrate is bonded to the adhesive layer of the second substrate to form a laminate structure of the first substrate, the abrasive material coating layer, the adhesive layer, and the second substrate in this order; and (4) separating the first substrate from the laminate formed in step (3), to obtain an abrasive sheet comprising the second substrate, the adhesive layer, and the abrasive material coating layer, said abrasive material coating layer having an embossed surface.