PROBLEM TO BE SOLVED: To provide a rubber composition for a construction vehicle pneumatic tire which is excellent in all of processability, wear resistance, and hardness, and to provide a construction vehicle pneumatic tire using the same.SOLUTION: The rubber composition for a construction vehicle pneumatic tire contains a diene rubber (A), carbon black (B), and an acid-modified polyolefin (C). The diene rubber (A) contains 60 mass% or more of a styrene-butadiene copolymer rubber. The carbon black (B) has a nitrogen adsorption specific surface area of 80-160 m/g. The acid-modified polyolefin (C) has a melt mass flow rate of 100 g/10 min or more. The content of the carbon black (B) is 40-80 pts.mass based on 100 pts.mass of the diene rubber (A). The content of the acid-modified polyolefin (C) is 0.1-10 pts.mass based on 100 pts.mass of the diene rubber (A).SELECTED DRAWING: None

    【課題】本発明の課題は、加工性、耐摩耗性および硬度がいずれも良好となる建設車両用空気入りタイヤ用ゴム組成物およびそれを用いた建設車両用空気入りタイヤを提供することである。【解決手段】ジエン系ゴム(A)と、カーボンブラック(B)と、酸変性ポリオレフィン(C)とを含有し、上記ジエン系ゴム(A)がスチレン−ブタジエン共重合ゴムを60質量%以上含有し、上記カーボンブラック(B)の窒素吸着比表面積が80〜160m2/gであり、上記酸変性ポリオレフィン(C)のメルトマスフローレートが100g/10min以上であり、上記カーボンブラック(B)の含有量が、上記ジエン系ゴム(A)100質量部に対して40〜80質量部であり、上記酸変性ポリオレフィン(C)の含有量が、上記ジエン系ゴム(A)100質量部に対して0.1〜10質量部である、建設車両用空気入りタイヤ用ゴム組成物。【選択図】なし


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    Titel :

    RUBBER COMPOSITION FOR CONSTRUCTION VEHICLE PNEUMATIC TIRE AND CONSTRUCTION VEHICLE PNEUMATIC TIRE USING THE SAME


    Weitere Titelangaben:

    建設車両用空気入りタイヤ用ゴム組成物およびそれを用いた建設車両用空気入りタイヤ


    Beteiligte:
    OGAWA RIE (Autor:in) / SHIKAKUBO TAKASHI (Autor:in) / NOGUCHI FUMITOSHI (Autor:in) / KAMAHORI AYAKO (Autor:in) / SHIMIZU KATSUNORI (Autor:in)

    Erscheinungsdatum :

    2016-08-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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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