PROCESS FOR IMPROVING THE DISPERSIBILITY OF POST-TREATED TITANIUM DIOXIDE INTO ORGANIC SYSTEMS INCLUDING PAINTS, TEXTILES AND POLYETHYLENE-BASED MASTER BATCHES AND ORGANIC SYSTEMSCONTAINING SUCH POST-TREATED TITANIUM DIOXIDE

摘要

The invention is an improved process for enhancing the dispersion properties of treated titanium dioxide pigment into a wide variety of organic and other systems including paint and polyethylene. The invention is useful for pigments made by either of the two process types of titanium dioxide, i.e. sulfate or chloride. The dispersion properties of coated titanium dioxide pigment can be improved considerably if the milled dry pigment particles are subjected before being aftertreated, to a separate air classifying operation.