To provide a rubber composition excellent in cut resistance.SOLUTION: The rubber composition of the present invention includes: a rubber constituent containing a natural rubber, and polybutadiene (high-cis butadiene rubber) having a cis-1,4 bond content of 90 mass% or more; and a cyclic polyol compound having a hydrocarbyl group, wherein the content of the natural rubber is 20-70 mass%, and the content of the high-cis butadiene rubber is 30-80 mass% in the rubber constituent, and the content of the cyclic polyol compound having a hydrocarbyl group is 0.1-3 pts.mass with respect to 100 pts.mass of the natural rubber.SELECTED DRAWING: None

    【課題】耐カット性に優れた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、天然ゴム及びシス-1,4結合含量が90質量%以上であるポリブタジエン(ハイシスブタジエンゴム)を含有するゴム成分と、ヒドロカルビル基を有する環状ポリオール化合物と、を含み、前記ゴム成分における、天然ゴムの含有量が20~70質量%であり、且つ、前記ハイシスブタジエンゴムの含有量が30~80質量%であり、前記ヒドロカルビル基を有する環状ポリオール化合物の含有量が、前記天然ゴム100質量部に対して0.1~3質量部であることを特徴とする。【選択図】なし


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    Title :

    RUBBER COMPOSITION AND TIRE


    Additional title:

    ゴム組成物及びタイヤ


    Contributors:

    Publication date :

    2022-12-13


    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 / 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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