To provide a tread rubber composition that has exceptional abrasion resistance and low heat generation properties without compromising other physical properties.SOLUTION: The present invention provides a rubber composition containing a rubber component, carbon black, and an antioxidant, wherein the rubber component contains a high-purity natural rubber having a nitrogen content of 0.3 mass% or lower, and the mass ratio of the content of the carbon black to the total content of the carbon black and the silica is 0.80 or greater.SELECTED DRAWING: None

    【課題】他の物性を低下させることなく、耐摩耗性及び低発熱性に優れたトレッド用ゴム組成物を提供する。【解決手段】上記課題を解決するべく、本発明は、ゴム成分と、カーボンブラックと、老化防止剤と、を含むゴム組成物であって、前記ゴム成分は、窒素含有量が0.3質量%以下の高純度天然ゴムを含有し、前記カーボンブラックと前記シリカとの合計含有量に対する、前記カーボンブラックの含有量の質量比が、0.80以上であることを特徴とする。【選択図】なし


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    Title :

    TREAD RUBBER COMPOSITION, TIRE, AND HEAVY-LOAD TIRE


    Additional title:

    トレッドゴム組成物、タイヤ及び重荷重用タイヤ


    Contributors:

    Publication date :

    2025-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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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