To provide a method of producing a rubber composition for a tire, which improves dispersibility of silica while suppressing occurrence of scorch and gives a rubber composition for a tire excellent in fuel economy.SOLUTION: The present invention relates to the method of producing a rubber composition for a tire, which includes: a base kneading step of kneading a rubber component, silica, a silane coupling agent, and a vulcanization accelerator; and a finishing kneading step of kneading a kneaded product obtained in the base kneading step and a vulcanizing agent. The kneading in the base kneading step is performed by a Banbury mixer which includes a kneading chamber and a drop door for discharging the content of the kneading chamber and in which the temperature of the drop door is adjusted to 20-40°C.SELECTED DRAWING: None

    【課題】スコーチの発生を抑制しながら、シリカの分散性を向上させ、低燃費性に優れたタイヤ用ゴム組成物が得られるタイヤ用ゴム組成物の製造方法を提供する。【解決手段】ゴム成分、シリカ、シランカップリング剤及び加硫促進剤を混練するベース練り工程と、前記ベース練り工程で得られた混練物及び加硫剤を混練する仕上げ練り工程とを含み、前記ベース練り工程の混練を、混練室と、前記混練室の内容物を排出するドロップドアとを備え、前記ドロップドアの温度が20〜40℃に調節されているバンバリーミキサーによって実施するタイヤ用ゴム組成物の製造方法に関する。【選択図】なし


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    Title :

    METHOD OF PRODUCING RUBBER COMPOSITION FOR TIRE


    Additional title:

    タイヤ用ゴム組成物の製造方法


    Contributors:

    Publication date :

    2018-12-13


    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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