Low-dust, well dispersible granulates based on silicate fillers modified with organosilicon compounds

The invention relates to granulates based on silicate fillers, the surface of which was modified with organosilicon compounds, a process for manufacturing the granulates by spraying a suspension of these fillers together with the organosilicon compounds in a spray granulator and the use of the granulates in vulcanizable rubber mixtures. Low-dust, well dispersible granulates based on silicate fillers manufactured by precipitation and modified with organosilicon compounds of the general formula [R1n (R-(CH2)iO)3-nSi-(CH2)y-(CH2)z]q [B] where B: -SCN, -SH, -Cl, -NH2 (when q=1) or -Sx- (when q=2), R and R': an alkyl group with 1 to 4 carbon atoms, wherein all groups R and R' may have the same or a different meaning in each case, R: additionally H, n: 0; 1 or 2, y: 0 to 19, z: 1, I: 1, x: a number from 2 to 8, wherein the degree of reaction of the alkoxy groups is given in the form of the integration ratio of the signals obtained by means of 13C-NMR-spectroscopy and the following values are produced: R H: (CH2)i