To provide a manufacturing method of a rubber composition providing the rubber composition excellent in productivity and excellent low heat generation property, further a rubber composition obtained by the manufacturing method, and a tire obtained from the rubber composition and excellent in low rolling resistance.SOLUTION: There is provided a manufacturing method of a rubber composition containing a rubber component, silica, a silane coupling agent and organic acid, including mixing the rubber composition in a plurality of steps, and adding organic acid 20 sec. from mixing time or later in a step prior to a final step of mixing.SELECTED DRAWING: None

    【課題】生産性に優れ、低発熱性に優れたゴム組成物が得られるゴム組成物の製造方法を提供すること。更に、前記製造方法により得られるゴム組成物、及び該ゴム組成物から得られる低転がり抵抗性に優れたタイヤを提供すること。【解決手段】ゴム成分、シリカ、シランカップリング剤、及び有機酸を含有するゴム組成物の製造方法であり、該ゴム組成物を複数段階で混練し、混練の最終段階よりも前の段階において、混練開始から20秒以降に有機酸を添加することを特徴とするゴム組成物の製造方法。【選択図】なし


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    Title :

    MANUFACTURING METHOD OF RUBBER COMPOSITION, RUBBER COMPOSITION, AND TIRE


    Additional title:

    ゴム組成物の製造方法、ゴム組成物、及びタイヤ


    Contributors:

    Publication date :

    2019-06-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / 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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