Tire
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsALINE RIOU, GWENAEL AZOU
Life of this patent
Estimating the term…
Abstract
The present invention relates to a tyre (10) comprising, in the beads or in the tread, a rubber composition based on: an elastomeric matrix predominantly by mass comprising natural rubber; at least 65 phr of reinforcing fillers, the reinforcing fillers consisting of 40 to 70 phr of pyrolysis carbon black and 10 to 40 phr of carbon black, the ratio (mass of pyrolysis carbon black)/(total mass of reinforcing fillers) ranging from 0.60 to 0.75; 10 to 20 phr of a reinforcing resin mixture, the reinforcing resin mixture comprising a cardanol-based phenolic resin, the ratio (mass of cardanol-based phenolic resin)/(total mass of reinforcing resins) ranging from 0.1 to 0.7; a curing agent; and a crosslinking system.
Claims27
-17. (canceled)
A tire comprising two beads, at least one of the beads comprising a rubber composition based on:
- an elastomeric matrix predominantly by mass comprising natural rubber;
- at least 65 phr of reinforcing fillers, the reinforcing fillers consisting of 40 to 70 phr of pyrolysis carbon black and 10 to 40 phr of carbon black, a ratio of a mass of the pyrolysis carbon black to a total mass of reinforcing fillers ranging from 0.60 to 0.75;
- 10 to 20 phr of a reinforcing resin mixture, the reinforcing resin mixture comprising a cardanol-based phenolic resin, a ratio of a mass of the cardanol-based phenolic resin to a total mass of reinforcing resins ranging from 0.1 to 0.7;
- a curing agent;
- and
- a crosslinking system.
A tire comprising a tread comprising:
- a radially outer layer intended to be in contact with a ground on which the tire runs when the tire is new;
- and
- a radially inner layer arranged radially inside the radially outer layer when the tire is new, the radially inner layer comprising a rubber composition based on:
- an elastomeric matrix predominantly by mass comprising natural rubber;
- at least 65 phr of reinforcing fillers, the reinforcing fillers consisting of 40 to 70 phr of pyrolysis carbon black and 10 to 40 phr of carbon black, a ratio of a mass of the pyrolysis carbon black to a total mass of reinforcing fillers ranging from 0.60 to 0.75;
- 10 to 20 phr of a reinforcing resin mixture, the reinforcing resin mixture comprising a cardanol-based phenolic resin, a ratio of a mass of the cardanol-based phenolic resin to a total mass of reinforcing resins ranging from 0.1 to 0.7;
- a curing agent;
- and
- a crosslinking system.
Dependencies are inferred from the claim text.