A rubber composition for heavy-duty tires with which a heavy-duty tire can be produced that exhibits both low heat generation properties and excellent wear resistance, and a tire tread, a bead filler,a tire belt and a heavy-duty tire using said rubber composition in a portion thereof are provided. This rubber composition for the heavy-duty tire contains, for 100 parts by mass of a solid rubber (A), 0.1-50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound having a specific structure, and 20-200 parts by mass of a filler (C), wherein the modified liquid diene rubber (B) satisfies the following conditions (i) and (ii) that (i) the weight average molecular weight (Mw) is 1,000 to 120,000, and (ii) the vinyl content is less than 30 mol%.

    提供能制造显示出低发热性的同时耐磨耗性也良好的重载轮胎的重载轮胎用橡胶组合物、部分使用其的轮胎胎面、胎边芯、轮胎用带和重载轮胎。重载轮胎用橡胶组合物,其是含有固体橡胶(A)、相对于固体橡胶(A)100质量份而言0.1~50质量份的改性液体二烯系橡胶(B)、和20~200质量份的填料(C)的重载轮胎用橡胶组合物,所述改性液体二烯系橡胶(B)具有源自具有特定结构的硅烷化合物的官能团,前述改性液体二烯系橡胶(B)满足下述(i)~(ii),(i)重均分子量(Mw)为1,000以上且120,000以下;(ii)乙烯基含量低于30摩尔%。


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    Title :

    Rubber composition for heavy-duty tire and tire


    Additional title:

    重载轮胎用橡胶组合物和轮胎


    Contributors:

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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