| 摘要 |
<p>A pneumatic tire prepared by using a rubber composition prepared by compounding precipitated silica with a rubber component comprising 100 parts by mass of a rubber component (A) comprising at least one of a natural rubber and a synthetic diene base rubber and 5 to 60 parts by mass of an aromatic vinyl compound-diene compound copolymer (B) having a weight average molecular weight of 4,000 to 250,000 which comprises 0 to 80 % by mass of the aromatic vinyl compound and in which a vinyl bond content in the parts of the diene compound is 0 to 80 % by mass, wherein a cetyltrimethylammonium bromide-adsorbing specific surface area (CTAB) (m 2 /g) of the precipitated silica and the mode A ac (nm) in diameters of primary aggregates thereof determined by acoustic measurement of particle size distribution satisfy equation (I) shown below: A ac ‰§ - 0.76 × CTAB + 274
and an ignition loss (mass reduction % when heated at 750°C for 3 hours) of the precipitated silica and a heating loss (mass reduction % when heated at 105°C for 2 hours) thereof further satisfy an equation ignition loss - heating loss ‰¦ 3</p> |
