INTERNAL MIXTURE FOR A TYRE HAVING IMPROVED CRACKING RESISTANCE

摘要

A tire comprises at least one internal rubber composition having improved cracking resistance, the said internal composition comprising at least 50 to 100 phr of an isoprene elastomer such as natural rubber; optionally, 0 to 50 phr of another diene elastomer such as BR or SBR; 0 to less than 15 phr of a carbon black; between 40 and 100 phr of a nanoscale inorganic filler such as silica. The internal composition is free from or comprises less than 2%, expressed relative to the weight of the nanoscale inorganic filler of (elastomer/inorganic filler) coupling agent.