FILLER OF NATURAL OXIDE OR SILICATE WHOSE SURFACE IS DENATURED WITH ORGANOSILICATE COMPOUND AT LEAST

摘要

The invention is directed to the modification of natural oxidic or silicate fillers with water insoluble sulfur containing organosilicon compounds. For this purpose, the fillers are converted into an aqueous suspension and treated with the organosilicon compounds, in a given case in the presence of an emulsifier.