Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2022100978
Kind Code:
A
Abstract:
To restrain the color change of a different color rubber layer in a pneumatic tire in which the different color rubber layer is exposed on the external surface of a sidewall part.SOLUTION: A pneumatic tire includes a tread part 2, a sidewall part 3, a bead part 4, and a carcass 6. At least one of a pair of sidewall parts 3 includes a first sidewall rubber 10 disposed outside the carcass 6 in a tire axial direction. The first sidewall rubber 10 includes a different color rubber layer 11 and a barrier rubber layer 12. The different color rubber layer 11 has a color different from an external fundamental color of the sidewall part 3, and at least a part thereof is exposed on the external face of the sidewall part 3. The barrier rubber layer 12 is disposed between the different color rubber layer 11 and the carcass 6, and includes a first portion 16 having rubber compounding for inhibiting migration of a rubber compounding agent on the carcass 6 side to the different color rubber layer 11.SELECTED DRAWING: Figure 2
Inventors:
UTSUMI DAISUKE
Application Number:
JP2020215292A
Publication Date:
July 06, 2022
Filing Date:
December 24, 2020
Export Citation:
Assignee:
SUMITOMO RUBBER IND
International Classes:
B60C13/00; B60C1/00; B60C13/04
Attorney, Agent or Firm:
Sumitomo Shintaro
Shigetake Ura
Jun Naemura
Ishihara Yukinobu
Satoshi Ichida
Shigetake Ura
Jun Naemura
Ishihara Yukinobu
Satoshi Ichida