| abstract |
A rubber composition for use in tire having good reinforcing properties and fatigue properties and an improved heat build-up is disclosed, which comprises 30 to 60 parts by weight, based on 100 parts by weight of rubber, of a carbon black having a nitrogen adsorption value (N2SA) of 35 to 105 m2/g, a DBP absorption value of 140 to 200 ml/100 g, a 24M4DBP absorption value of 60 to 120 ml/100 g and a DELTA DBP of 50 to 110 ml/100 g defined by DELTA DBP=DBP absorption value-24M4DBP absorption value. |