A method for manufacturing a tire rubber composition includes kneading a rubber component, a silane coupling agent and silica such that a content of the silica exceeds 50 parts by mass with respect to 100 parts by mass of the rubber component, adding a vulcanization accelerator to a kneading mixture including the rubber component, the silane coupling agent and the silica, kneading the vulcanization accelerator and the kneading mixture including the rubber component, the silane coupling agent and the silica, adding a vulcanization agent to a resulting mixture including the rubber component, the silane coupling agent, the silica and the vulcanization accelerator, and kneading the vulcanization agent and the resulting mixture including the rubber component, the silane coupling agent, the silica and the vulcanization accelerator such that a kneaded material obtained by the kneading of the vulcanization agent and the resulting mixture has a gel fraction of 30% or less.


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    Title :

    タイヤ用ゴム組成物の製造方法及びタイヤ用ゴム組成物


    Publication date :

    2020-10-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08J Verarbeitung , WORKING-UP / 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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen