Highly disperse precipitated silica having high CTAB surface area, useful e.g. as filler in tires for commercial vehicles, motor cycles and high speed vehicles, and as antiblocking agents, and carriers for agrochemicals and foodstuffs

摘要

Precipitated silica (I) has the following characteristics: BET surface area of 178-302 m2/g; CTAB surface area at least 170 m2/g; DBP-number 200-300 g/(100 g); Sears number V2 10-35 ml/(5 g). Independent claims are also included for the following: (1) preparation of (I); (2) elastomeric mixtures, vulcanized rubber mixtures and/or vulcanizates containing (I) as above; (3) tires, tires for commercial vehicles, tires for motor cycles, tires for high speed commercial vehicles, all containing (I) as above.