| abstract |
The invention relates to a sulphur-crosslinkable rubber mixture and a pneumatic vehicle tire with a tread strip which consists at least partly of such a rubber mixture vulcanized with sulphur. The sulphur-crosslinkable rubber compound contains improved abrasion behavior and low rolling resistance at the same time - 20 - 100 phr of at least one functionalized styrene-butadiene copolymer A, wherein the functionalized styrene-butadiene copolymer A is at least partially functionalized at one chain end by reaction with at least one polyorganosiloxane and at least one alkylaminosilane, and wherein the functionalized styrene-butadiene copolymer A is functionalized at the other chain end with a polyisoprene group containing isoprene and styrene units, the isoprene content in the polyisoprene group being more than 90% by weight, - up to 80 phr of at least one other diene rubber, - 1 to 40 phr of at least one liquid polybutadiene which is organosilicon-modified and has an average molecular weight M w according to GPC of 500 to 20,000 g/mol, preferably 500 to 12,000 g/mol, and - 40 - 350 phr of at least one filler. |