INTERNAL MIXTURE FOR A TYRE HAVING IMPROVED CRACKING RESISTANCE

摘要

A tyre comprising at least one internal rubber composition having improved cracking resistance, said internal composition comprising at least ("pce" meaning parts by weight per hundred parts of elastomer): - 50 to 100 pce of an isoprene elastomer such as natural rubber; - optionally, 0 to 50 pce of another diene elastomer such as BR or SBR; - 0 to less than 15 pce of carbon black; - between 40 and 100 pce of a nanometric inorganic filler such as silica, characterised in that this internal composition is free of or comprises less than 2%, expressed relative to the weight of nanometric inorganic filler, of coupling agent (elastomer/inorganic filler).