| abstract |
The present invention provides production methods for aqueousndispersion slurry of inorganic particles which are so stable asnnot to increase in viscosity, gel or sediment even if stored forna long time and whose average particle diameter is 0.01 to 2 µm.nAs such production method, 2 production methods are available: n A production method (A) having a preliminary dispersion processnin which the inorganic particles are added to ad dispersed in annaqueous medium and a main dispersion process in which dispersednslurry out of the preliminary dispersion process are collided withneach other under a pressure of 100 to 3,000 kg/cm 2 ; and n A production method (B) in which the inorganic particles arenadded to an aqueous medium within a kneading tank of a kneadernin which mixing blades rotate around respective subsidiarynspindles and the subsidiary spindles revolves around a spindlenand dispersed at a solid concentration of 30 to 70wt%. |