Invention Grant
- Patent Title: Pneumatic tire and method of making tire
- Patent Title (中): 气动轮胎及轮胎制作方法
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Application No.: US09129037Application Date: 1998-08-04
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Publication No.: US06367525B1Publication Date: 2002-04-09
- Inventor: Masato Hiruma , Gen Suzuki , Akio Kusano , Hiroshi Mouri
- Applicant: Masato Hiruma , Gen Suzuki , Akio Kusano , Hiroshi Mouri
- Priority: JP9-209311 19970804; JP9-212956 19970807; JP9-358190 19971225; JP10-159734 19980608
- Main IPC: B29D3052
- IPC: B29D3052

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 &OHgr;·cm or more after curing by vulcanization and conductive rubber members which comprise a rubber composition having a specific resistance of 106 &OHgr;·cm 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.
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