Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2010/126144
Kind Code:
A1
Abstract:
Disclosed is a pneumatic tire, in which turbulent flow-creating ridges extending from the inner circumference side to the outer circumference side are formed at intervals in the tire circumference direction on the tire surface of a tire side part, wherein: said turbulent flow-creating ridges have edge parts, as viewed in the sectional shape cut in the radial direction; the front wall angle, which is made between the front wall faces of the turbulent flow creating ridges to be hit by an air flow and the tire surface, ranges from 70o to 110o; and, as a side-reinforcing rubber constituting said tire side part, a rubber composition prepared by blending 100 parts by mass of a rubber component containing 10 mass% or more of a modified conjugated diene polymer, which is obtained by conducting a modification reaction between a terminus of a conjugated diene polymer and an alkoxysilane compound having a primary amino group or a precursor capable of forming a primary amino group through hydrolysis to thereby introduce the primary amino group or the precursor capable of forming a primary amino group through hydrolysis to said terminus, and further adding a fusion accelerator to the modification reaction system in the course of the modification reaction or after the completion thereof, with 10 to 100 parts by mass of carbon black having a nitrogen adsorption specific surface area of 20 to 90 m2/g. Thus, it is possible to provide a durability-improvable tire, in which the temperature inside the tire side part can be lowered due to efficient heat radiation, and the durability during run-flat traveling and the rolling resistance during normal traveling, as the rubber composition, can be simultaneously improved.
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Inventors:
MATSUO SHIGEAKI (JP)
YAMAGUCHI MASASHI (JP)
YAMAGUCHI MASASHI (JP)
Application Number:
PCT/JP2010/057710
Publication Date:
November 04, 2010
Filing Date:
April 30, 2010
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
MATSUO SHIGEAKI (JP)
YAMAGUCHI MASASHI (JP)
MATSUO SHIGEAKI (JP)
YAMAGUCHI MASASHI (JP)
International Classes:
B60C1/00; B60C13/00; B60C17/00; C08C19/22; C08K3/04; C08K3/06; C08L15/00
Domestic Patent References:
| WO2008114668A1 | 2008-09-25 | |||
| WO2002002356A1 | 2002-01-10 | |||
| WO2003087171A1 | 2003-10-23 |
Foreign References:
| JP2009029404A | 2009-02-12 | |||
| JP2006076431A | 2006-03-23 | |||
| JP2004074960A | 2004-03-11 | |||
| JPH0653763B2 | 1994-07-20 | |||
| JPH0657767B2 | 1994-08-03 | |||
| JPH06206920A | 1994-07-26 | |||
| JPH06199922A | 1994-07-19 | |||
| JPH06199921A | 1994-07-19 |
Other References:
See also references of EP 2425990A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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