Invention Grant
US06626216B2 Pneumatic tire having hollow particles in base rubber 失效
在基础橡胶中具有中空颗粒的气动轮胎

  • Patent Title: Pneumatic tire having hollow particles in base rubber
  • Patent Title (中): 在基础橡胶中具有中空颗粒的气动轮胎
  • Application No.: US09884962
    Application Date: 2001-06-21
  • Publication No.: US06626216B2
    Publication Date: 2003-09-30
  • Inventor: Akira Minagoshi
  • Applicant: Akira Minagoshi
  • Priority: JP2000-195976 20000629
  • Main IPC: B60C100
  • IPC: B60C100
Pneumatic tire having hollow particles in base rubber
Abstract:
The present invention relates to a pneumatic tire that achieves, without degrading the steering stability, the reduction in road noise due to tire vibration when a vehicle drives on a rough road surface. The present pneumatic tire is characterized in that a tread portion is formed by at least two layers consisting of cap rubber on a road-contact surface side and base rubber on a side adjacent to a belt layer, that hollow particles having a mean particle diameter of at most 500 &mgr;m are mixed in a volume ratio of 2% to 40% into the base rubber, and that a thickness of the base rubber is made to be at least 1.0 mm.
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