TYRE COMPRISING AN IMPROVED TREAD

TYRE COMPRISING AN IMPROVED TREAD

Tire having a predetermined direction of mounting on a vehicle. The tire tread (40) comprises a central rib (411-413) and two side ribs (421, 422), separated by circumferential grooves (141-144). The side ribs are made from a first rubber composition less than 50% filled with black. The central rib...

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Hauptverfasser: BRUNEAU, François-Xavier, FRAYSSE, Patrice, IGIER, Emmanuel, BOURGEOIS, Frédéric
Format: Patent
Sprache:eng ; fre ; ger
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DEVICES OR ARRANGEMENTS RELATED TO TYRES
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
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creator BRUNEAU, François-Xavier
FRAYSSE, Patrice
IGIER, Emmanuel
BOURGEOIS, Frédéric
description Tire having a predetermined direction of mounting on a vehicle. The tire tread (40) comprises a central rib (411-413) and two side ribs (421, 422), separated by circumferential grooves (141-144). The side ribs are made from a first rubber composition less than 50% filled with black. The central rib comprises a portion (4111, 4121) made from a second rubber composition more than 50% filled with black, the axial width (LP) of said portion being greater than or equal to 20% of the axial width LC of the central rib. The first rubber composition has a tan δ0 value which is greater than the tan δ0 value of the second rubber composition, where tan δ0 denotes the tan δ value measured at a temperature of 0° C. and under a stress of 0.7 mPa.
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language eng ; fre ; ger
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subjects DEVICES OR ARRANGEMENTS RELATED TO TYRES
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
title TYRE COMPRISING AN IMPROVED TREAD
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