NOVEL PRECIPITED SILICA WITH IMPROVED MORPHOLOGICAL CHARACTERS, PROCESS FOR OBTAINING THE SAME AND APPLICATION, IN PARTICULAR AS CHARGING

摘要

P THE PRESENT INVENTION HAS A PRECIPITATED SILICA HAVING A BET SURFACE BETWEEN 50 AND 350 MG. IT IS CHARACTERIZED BY THE FACT THAT IT IS PRESENT FOR INCREASING CTAB SPECIFIC SURFACES, A DBP OIL TURBINE TORQUE RATIO DECREASING WHEN CTAB SURFACES GROW AS THE DBPCTAB RATIO IS: ABOVE 4: -4 FOR CTAB INTERVAL INCLUDED BETWEEN 50-100 MG, INCLUDED BETWEEN: -4 AND 2.5 FOR CTAB INTERVAL INCLUDING BETWEEN 100-200 MG, -2.5 AND 2 FOR CTAB INTERVAL INCLUDING BETWEEN 200-250 MG; -2 AND 1.5 FOR CTAB INTERVAL INCLUDING BETWEEN 250-300 MG; -1.5 AND 1.2 FOR CTAB INTERVAL BETWEEN 300-350 MG. / P P IT APPLIES NOTABLY TO STRENGTHENING ELASTOMERS. / P