Patent ID: 6440185
Filing Date: 2002-08-27
Classification: B24D

Abstract:
A resinoid grinding wheel comprising abrasive grains, particles of an organic hollow material and a pore-forming agent dispersed in a resinoid bond, the organic hollow material particles having an average diameter in a range of not less than 10 &mgr;m and not more than 300 &mgr;m, said resinoid bond being made of a cured resin which is produced by curing at least one liquid resin selected from the group consisting of epoxy resin, acrylic resin and urethane resin,wherein a ratio U/B by volume of the organic hollow particles U to the resinoid bond B is not less than 5/100 and not more than 80,100, wherein particles of said organic hollow material particles are discretely dispersed in and fully surrounds by the resinoid bond and wherein the abrasive grains, except for those dispersed on a surface of the grinding wheel, are fully surrounded by the resinoid bond.