Abstract: A process for the preparation of thermosetting resin powder paints comprising the steps of extruding a melt of a resinous composition for a thermosetting powder paint, continuously cooling the composition and forming it into a sheet, and pulverizing the formed sheet. Air blasting nozzles are directed at the sheet while it is on the cooling rolls. The adherence between the sheet and the rolls is improved, and the air blasting nozzles provide an auxiliary means for cooling the sheet.

Abstract: This invention relates to a method for dispersing a suspension of solid particles into the colloidal state, which comprises charging grinding media and said dispersion into a vessel so that the volume ratio of the grinding media and the suspension is within a range of from 2/1 to 1/2 and agitating the suspension and the grinding media by rotating one agitation rod mounted on the tip end of an agitation shaft at the lower part of the central portion of the vessel so that the peripheral velocity of the tip of the agitation rod is within a range of from 6 to 20 m/sec. The invention also is directed to an apparatus for practicing this method.