The purpose of the present invention is to provide a tire satisfying both grip performance before running-in and grip performance after running-in. The present invention relates to a tire having tread rubber satisfying expression (I): (a)/(b)>=0.75, wherein (a) is the minimum value and (b) is the maximum value of the Martens hardness in a range from a position at a depth of 10 mum in a tire radial direction to a position at a depth of 200 mum in the tire radial direction from a tire surface in a tire tread ground contact portion.
本发明旨在提供在磨合前后均显示出令人满意的抓地性能的轮胎。本发明涉及包含胎面橡胶的轮胎,所述胎面橡胶满足以下关系式(I):(a)/(b)≥0.75(I)式中,符号(a)和符号(b)分别表示在距轮胎表面的轮胎径向深度为10μm至200μm的区域中测得的轮胎胎面接触部分的最小马氏硬度和最大马氏硬度。
TIRE AND METHOD OF EVALUATING TIRE GRIP PERFORMANCE
轮胎和评估轮胎抓地性能的方法
2021-04-16
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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