PROBLEM TO BE SOLVED: To provide a rubber compound capable of efficiently improving durability, especially when being used for a tire member such as a tire tread, while suppressing cost increase.SOLUTION: There is provided a rubber compound characterized in that, to a natural rubber, a petroleum coke pulverized burned product is blended, in which an average particle diameter (D50) of the petroleum coke pulverized burned product is longer than 0 μm and 50 μm or shorter. The petroleum coke pulverized burned product is preferably produced by burning coke which is obtained by heat decomposition of atmospheric distillation residue oil or vacuum distillation residue oil of raw petroleum, at temperature of higher than 500°C and 1500°C or lower, then pulverizing the coke, or is produced by blending 1-500 mass parts of the petroleum coke pulverized burned product with respect to 100 mass parts of the natural rubber.SELECTED DRAWING: None

    【解決課題】コストの上昇を抑制しつつ、特にタイヤトレッド等のタイヤ部材に使用したときに耐久性を効果的に向上させるゴム配合物を提供する。【解決手段】天然ゴムに対し、平均粒子径(D50)が0μmを超え50μm以下である石油コークス微粉砕焼成物を配合してなることを特徴とするゴム配合物であり、好適には、上記石油コークス微粉砕物が、原油の常圧蒸留残渣油または減圧蒸留残渣油を熱分解して得られるコークスを500℃を超え1500℃以下の温度で焼成し、粉砕してなるものであるか、または、上記天然ゴム100質量部に対し、上記石油コークス微粉砕焼成物を1〜500質量部配合してなるゴム配合物である。【選択図】なし


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    Title :

    RUBBER COMPOUND


    Additional title:

    ゴム配合物


    Contributors:

    Publication date :

    2016-08-08


    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 / C01B NON-METALLIC ELEMENTS , Nichtmetallische Elemente / 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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