Patent ID: 7159803
Filing Date: 2007-01-09
Classification: A61K,A61Q,C09K

Abstract:
1. A method of providing a particulate composition, said method comprising the sequential steps of: a) providing a plurality of particles selected from the group consisting of precipitated silica particles, silica gel particles, precipitated calcium carbonate particles, calcium pyrophosphate particles, dicalcium phosphate, and any mixtures thereof; b) subjecting said plurality of particles to a comminuting step in a wet environment; c) subjecting said wet-comminuted particles of step “b” to a particle size classification step wherein particles exhibiting a median particle size range of from about 5 to about 30 microns are collected; d) subjecting said collected particles from step “c” to a subsequent particle size classification step wherein particles exhibiting a median particle size range of from about 5 to about 15 microns are collected; optionally e) subjecting said collected classified particles from step “d” to a dewatering step wherein said dewatered particles exhibit a moisture content of at most 60 wt %; and, optionally f) subjecting said dewatered abrasive particles to a deagglomeration step.