Patent ID: 6745962
Filing Date: 2004-06-08
Classification: B02C,Y10S

Abstract:
A method of milling a non-soluble product, comprising:(a) providing a dispersion containing a non-soluble product to be milled and attrition milling media having a nominal size of no greater than about 500 microns; (b) inserting the dispersion into a cylindrical vessel; (c) providing an agitator and a coupling that closes the vessel, the coupling having an opening through which a portion of the agitator extends, the agitator comprising a cylindrical rotor and a shaft extending therefrom, wherein the cylindrical rotor is dimensioned so that an outer periphery is no greater than 3 mm away from an inner surface of the cylindrical vessel; (d) inserting the agitator into the cylindrical vessel and sealingly closing the coupling, wherein the vessel is filled so that the dispersion eliminates substantially all of the air in the vessel when the agitator is fully inserted into the vessel; and (e) rotating the agitator for a predetermined period.