초록 ▼

A method of preparing milled solid particles of a compound comprises the steps of forming a slurry of a liquid medium, the compound and rigid milling media in a milling chamber, contacting the compound with the milling media while in the chamber to reduce the particle size of the compound, and there

A method of preparing milled solid particles of a compound comprises the steps of forming a slurry of a liquid medium, the compound and rigid milling media in a milling chamber, contacting the compound with the milling media while in the chamber to reduce the particle size of the compound, and thereafter separating the compound from the milling media by vacuum filtration through a removable filter probe immersed in the slurry. In a preferred embodiment, the milling media is a polymeric resin having a mean particle size of less than 300 m

대표청구항 ▼

A process for forming a dispersion of solid particles of a compound comprising: (a) forming a slurry of a liquid medium, milling media, and a solid compound, (b) contacting said milling media and said compound in a milling chamber of a milling vessel to reduce the solid compound to a desired average

A process for forming a dispersion of solid particles of a compound comprising: (a) forming a slurry of a liquid medium, milling media, and a solid compound, (b) contacting said milling media and said compound in a milling chamber of a milling vessel to reduce the solid compound to a desired average particle size to form a dispersion of milled solid particles in said liquid medium, and (c) separating said dispersion of milled particles from said milling media in said milling chamber by vacuum filtration through a removable filter probe immersed in the slurry, wherein milling step (b) is performed in the absence of the removable filter, which removable filter is immersed into the slurry in the milling chamber after the solid compound is reduced to a desired particle size.