abstract |
(57) [Summary]nDescribed herein is the use of an amount of a hydrophobizing agent in an aqueous suspension of an inorganic oxide having a pH of 2.5 or less, and after the hydrophobization of the filler, the pH of the suspension. Is an improved process for producing hydrophobic particulate inorganic oxides useful for reinforcing polymer compositions, such as rubber, for example. |