A block in which at least two edges are formed, namely a first edge serving as a trailing edge when traveling in a first direction DR1, and a second edge serving as the trailing edge when traveling in a second direction DR2 opposite to the first direction DR1, is composed of at least two rubber layers that overlap in the circumferential direction of a tire, wherein: the at least two rubber layers comprise a first rubber layer which includes part of the first edge and is composed of a first rubber composition, and a second rubber layer which includes part of the second edge and is composed of a second rubber composition different from the first rubber composition; the first rubber layer is exposed in a region of at least 20% of an upper surface toward the inside of the block from the first edge and a region of at least 60% of a front surface in a radially inward direction from the first edge; the first rubber layer occupies at least 20% and at most 80% of the volume of the block; and a glass transition temperature Tg of the first rubber composition is at most equal to -20°C and the glass transition temperature Tg of the second rubber composition is greater than -20°C.
TIRE TREAD AND TIRE HAVING THIS TREAD
REIFENLAUFFLÄCHE UND REIFEN MIT DIESER LAUFFLÄCHE
BANDE DE ROULEMENT DE PNEU ET PNEU COMPORTANT CETTE BANDE DE ROULEMENT
14.07.2021
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |