Pneumatic tire
    3.
    发明授权

    公开(公告)号:US12023964B2

    公开(公告)日:2024-07-02

    申请号:US17543766

    申请日:2021-12-07

    发明人: Daisuke Utsumi

    IPC分类号: B60C13/00 B60C1/00 B60C13/02

    摘要: A pneumatic tire can include a tread portion, a pair of sidewall portions, bead portions, and a carcass. At least one sidewall portion can include a first sidewall rubber arranged outside the carcass in a tire axial direction. The first sidewall rubber can include a different color rubber layer and a barrier rubber layer. The different color rubber layer can have a color different from a basic color of an outer surface of the at least one sidewall portion. At least a part of the different color rubber layer can be exposed in the outer surface of the at least one sidewall portion. The barrier rubber layer can be arranged between the different color rubber layer and the carcass. The barrier rubber layer can include a first portion having a rubber compounding to suppress migration of rubber compounding agents on the carcass side to the different color rubber layer.