PROBLEM TO BE SOLVED: To provide a pneumatic tire having at least one member selected from the group consisting of an under tread, sidewall, wing, ply topping and breaker topping that is improved in various performances such as fuel economy, processability, thermal aging resistance, flexure crack growth resistance, rubber strength, adhesion strength, and breaking strength in a well balanced manner.SOLUTION: The pneumatic tire has at least one member selected from the group consisting of an under tread, sidewall, wing, ply topping and breaker topping that is manufactured by using the following rubber composition. The rubber composition comprises: a modified natural rubber that is highly purified and adjusted to a pH of 2 to 7; and silica having a nitrogen adsorption specific surface area of 20 to 200 m/g and showing a pH of 7 to 12 when dispersed into water to prepare a 5% silica dispersion aqueous solution.

    【課題】低燃費性、加工性、耐熱老化性、及び耐屈曲亀裂成長性、ゴム強度、接着強度、破断強度などの各種性能をバランスよく改善したアンダートレッド、サイドウォール、ウイング、プライトッピング及びブレーカートッピングからなる群より選択される少なくとも1種の部材を有する空気入りタイヤを提供する。【解決手段】高純度化され、かつpHが2〜7に調整された改質天然ゴムと、窒素吸着比表面積が20〜200m2/gであり、かつ水に分散させた5%シリカ分散水溶液のpHが7〜12であるシリカとを含むゴム組成物を用いて作製したアンダートレッド、サイドウォール、ウイング、プライトッピング及びブレーカートッピングからなる群より選択される少なくとも1種の部材を有する空気入りタイヤに関する。【選択図】なし


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2015-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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