Internal mixture for a tire having improved cracking resistance
AssigneesMichelin Recherche S.A., Compagnie Generale Des Etablissements Michelin
InventorsYASUFUMI NAKASHIMA, SALVATORE PAGANO
Life of this patent
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Abstract
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.
Claims15
-11. (canceled)
A tire comprising an internal rubber composition, wherein the internal rubber composition comprises at least:
- 50 to 100 phr of an isoprene elastomer;
- 0 to 50 phr of another diene elastomer;
- 0 to less than 15 phr of a carbon black;
- and
- between 40 and 100 phr of a nanoscale inorganic filler, and
- wherein the internal rubber composition is free from or comprises less than 2%, expressed relative to the weight of nanoscale inorganic filler, of elastomer/inorganic filler coupling agent.
The tire according to claim 18, wherein carbon black is present in an amount ranging from 2 to 10 phr.
Dependencies are inferred from the claim text.