A method of manufacturing a wet rubber masterbatch includes preparing latex containing magnesium in an amount which is not greater than 150 ppm; and making a liquid mixture that includes a rubber component and carbon black. The latex may include rubber particles for which the 90 vol % particle diameter is not greater than 2 μm. The liquid mixture can be made by a step (a) in which the latex and a dispersion solvent are mixed; and a step (b) in which a latex solution obtained at step (a) and a slurry containing the carbon black are mixed. The method for manufacturing a wet rubber masterbatch may satisfy: 0.1<1.0, where a indicates amount (ppm) of magnesium present in latex; and b indicates amount (parts by mass) of carbon black in the liquid mixture for every 100 parts by mass of rubber component in the liquid mixture.


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    Title :

    ゴムウエットマスターバッチの製造方法およびゴム組成物の製造方法・タイヤの製造方法


    Publication date :

    2019-10-30


    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