CARBON BLACK, RUBBER COMPOSITION AND PNEUMATIC TIRE

摘要

The present invention provides a carbon black which is characterized in that the standard deviation (s) of the aggregate distribution of the carbon black as obtained by a light scattering method using ultraviolet light satisfies formula (1). s st) + 161.8 (1) (In formula (1), 24M4DBP represents a compressed dibutyl phthalate absorption (cm3/100 g) and Dst (nm) represents a Stokes equivalent diameter corresponding to the maximum frequency in an aggregate distribution as obtained by a centrifugal sedimentation method.) The carbon black is capable of improving both the wear resistance and low rolling resistance of a tire. The present invention also provides: a rubber composition in which the carbon black is blended; and a pneumatic tire which uses the rubber composition.