Method for preparing an abrasive sheet using an embossed substrate
AssigneeSun Abrasives Corporation
InventorNam Il Kim
Life of this patent
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Abstract
An abrasive sheet having improved properties which enable precise polishing and finishing is prepared by (1) coating an abrasive material-containing slurry on a concave face of an embossed first substrate and then UV-curing or pre-drying with heat the coating layer to form an abrasive material coating layer on the embossed first substrate; (2) coating an adhesive on one side of a second substrate to form an adhesive layer thereon; (3) combining the first and second substrates such that the abrasive material coating layer is bonded to the adhesive layer to form a laminate; and (4) separating the first substrate from the laminate formed in step (3), to obtain an abrasive sheet having an embossed abrasive material coating layer.
Claims13
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 UV-curing or pre-drying with heat the coating layer to form an abrasive material coating layer on the embossed first substrate;
- (2) coating an adhesive on one side of a second substrate to form an adhesive layer thereon;
- (3) combining the first and second substrates such that the abrasive material coating layer formed in step (1) is bonded to the adhesive layer formed in step (2) to form a laminate;
- and
- (4) separating the first substrate from the laminate formed in step (3), to obtain an abrasive sheet having an embossed abrasive material coating layer, said abrasive sheet being optionally cured thereafter.
Dependencies are inferred from the claim text.