abstract |
The invention relates to silane-modified silicic acid with a BET surface area of 40 - 155 m²/g, a sulphur content of between 0.05 and 25 wt.% and a particle size of between d5 ≥ 4µm, and d50 ≥ 16µm. The silane-modified silcic acids are used in rubber mixtures. |