| 简介 |
PROBLEM TO BE SOLVED : To provide a tire reducing the temperature of a tire side part and outstandingly enhancing durability by improving anti-crack growth property of the tire side part more than a conventional tire.SOLUTION : In the tire, a predetermined recession/projection part for generating a turbulence flow is extended to at least a part of the tire side part 1. A rubber composition containing a conjugated diene based polymer synthesized using a rare earth metal and/or nickel and/or cobalt as a rubber component is applied to the tire side part and/or the recession/projection part for generating the turbulence flow. Here, the conjugated diene based polymer synthesized using the rare earth metal and/or nickel and/or cobalt is a butadiene based polymer containing a 1, 3-butadiene monomer unit, and is preferably a butadiene based polymer in which a cis-1, 4-bond content measured by Fourier transform infrared spectroscopy in the 1, 3-butadiene monomer unit is 93.0% or more.COPYRIGHT : (C)2010, JPO&INPIT |
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