TYRE WITH CROWN COMPRISING A LAYER HAVING A THERMOPLASTIC ELASTOMER

Radial tire having: a crown surmounted by a tread having at least one radially outer elastomer layer which contacts the road when the tire is rolling; two inextensible beads, two sidewalls connecting the beads to the tread, a carcass reinforcement passing into the two sidewalls and anchored in the b...

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Bibliographic Details
Main Authors VASSEUR, Didier, LOPITAUX, Garance, LOPEZ, Béatrice
Format Patent
LanguageEnglish
French
German
Published 04.03.2020
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DEVICES OR ARRANGEMENTS RELATED TO TYRES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
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Summary:Radial tire having: a crown surmounted by a tread having at least one radially outer elastomer layer which contacts the road when the tire is rolling; two inextensible beads, two sidewalls connecting the beads to the tread, a carcass reinforcement passing into the two sidewalls and anchored in the beads; a crown reinforcement or belt placed circumferentially between the carcass reinforcement and the tread; a radially inner elastomer sublayer, having a formulation different from the formulation of the radially outer elastomer layer, and placed between the radially outer layer and the belt, wherein said sublayer contains a rubber composition having at least one diene elastomer, a reinforcing filler and more than 10 phr of a hydrogenated thermoplastic styrene copolymer, which makes possible substantial improvement in rolling resistance and handling performance compromise.
Bibliography:Application Number: EP20100790976