Abstract: Carbon blacks having a CTAB of greater than 155 m.sup.2 /g; an I.sub.2 No. of greater than 180 mg/g; a N.sub.2 SA of greater than 160 m.sup.2 /g; a Tint value of greater than 145%; a CDBP of 90-105 cc/100 g; a DBP of 115-140 cc/100 g; a .DELTA.DBP (.DELTA.DBP=DBP-CDBP) of 20-35 cc/100 g; a .DELTA.D50 of less than 40 nm; a Dmode of 40-65 nm; .DELTA.D50/Dmode ratio of 0.55-0.67; and an ASTM Aggregate Volume less than 137,000 (nm).sup.3. Also disclosed are rubber compositions containing the carbon blacks which exhibit superior handling and cornering performance properties, increased abrasion resistance and improved traction.

Abstract: Carbon blacks having a nitrogen surface area (N.sub.2 SA) of from at least 180 m.sup.2 /g to about 250 m.sup.2 /g, a ratio of nitrogen surface area/iodine adsorption number (N.sub.2 SA/I.sub.2 No.) of from about 0.90 to about 1.05, a ratio of .DELTA.D 50/Dmode of from about 0.67 to about 0.81, a DBP (dibutyl phthalate number) of from about 115 cc/100 g to about 135 cc/100 g and a .DELTA.DBP [.DELTA.DBP=DBP-CDPB (Crushed DBP)] less than or equal to 20 cc/100 g, and rubber compositions in which the carbon blacks are incorporated.