| abstract |
The invention relates to a sulfur-crosslinkable rubber mixture comprisinga rubber blend composed of at least one solution-polymerized diene polymer A of high molecular weight and at least one solution-polymerized polymer B of low molecular weight, wherein at least one of polymers A and B has been functionalized at the chain end and/or along the polymer chain and/or at a coupling site with at least one group selected from epoxy groups, hydroxyl groups, carboxyl groups, silane sulfide groups, amino groups, siloxane groups, organosilicon groups, phthalocyanine groups and amino group-containing alkoxysilyl groups, anda vulcanization system comprising at least one accelerator and elemental sulfur and/or at least one sulfur donor substance, where the molar ratio of accelerated sulfur is 0.18 to 5, where the total molar amount of sulfur consists of elemental sulfur and the sulfur released by the sulfur donor substances. |