Patent ID: 6992123
Filing Date: 2006-01-31
Classification: B24B,B24D,C09K

Abstract:
1. A polishing pad comprising: a water-insoluble matrix material comprising a crosslinked polymer, and water-soluble particles dispersed in the water-insoluble matrix material, wherein the solubility of the water-soluble particles in water is 0.1 to 10 wt % at 25° C., and the amount of water-soluble particles eluted from the pad when the pad is immersed in water is 0.05 to 50 wt % at 25° C., wherein said water-soluble particles have an outer shell which has been formed on at least a portion of the outermost portion of the water-soluble particles by a coupling agent having at least one group selected from the group consisting of an amino group, an epoxy group and an isocyanate group.