Invention Grant
- 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
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Application No.: US09884962Application Date: 2001-06-21
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Publication No.: US06626216B2Publication Date: 2003-09-30
- Inventor: Akira Minagoshi
- Applicant: Akira Minagoshi
- Priority: JP2000-195976 20000629
- Main IPC: B60C100
- IPC: B60C100

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.
Public/Granted literature
- US20020014292A1 Pneumatic tire Public/Granted day:2002-02-07
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