公开(公告)号：US20020112799A1

公开(公告)日：2002-08-22

申请号：US10072955

申请日：2002-02-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Masato Hiruma ,  Gen Suzuki ,  Akio Kusano ,  Hiroshi Mouri

IPC: B29D030/00

CPC classification number: B60C11/18 ,  B29D2030/526 ,  B60C19/08 ,  Y10S152/02

Abstract: A pneumatic tire comprising a tread portion which comprises a surface rubber layer which is disposed in an outer portion of the tread portion in the radial direction of said tire and has a specific resistance of 108 nullnullcm or more after curing by vulcanization and conductive rubber members which comprise a rubber composition having a specific resistance of 106 nullnullcm or less and replace a portion of the surface rubber layer, wherein the conductive rubber members are disposed in portions of the surface rubber layer extending from the outer surface to the inner surface in the radial direction of said tire discontinuously in the circumferential direction of said tire at the outer surface of the surface rubber layer in the radial direction of said tire, is provided. The pneumatic tire shows not only an excellent effect of static discharge but also excellent durability.

Abstract translation: 一种充气轮胎，其特征在于，包括胎面部，该胎面部包括表面橡胶层，所述表面橡胶层设置在所述轮胎的径向方向的胎面部的外侧部分中，并且通过硫化和导电橡胶固化后的电阻率为10Ω/ 构成电阻率为10Ω·欧姆·厘米或更小的橡胶组合物的部件，并且替换表面橡胶层的一部分，其中导电橡胶部件设置在表面橡胶层的从外表面延伸到内表面的部分 在所述轮胎的径向方向上在所述轮胎的径向方向上在所述轮胎的所述表面橡胶层的外表面处在所述轮胎的径向方向上不连续地沿所述轮胎的圆周方向。 充气轮胎不仅显示出静电放电的优异效果，而且显示出优异的耐久性。