To provide a rubber composition having excellent releasability, and a pneumatic tire and a vulcanization bladder made using the rubber composition.SOLUTION: A rubber composition has a rubber component containing diene rubber, and a magnesium oxide with an apparent specific gravity of less than 0.4 g/ml, and a particle size of integrated value 50% in a mass-based particle size distribution curve of less than 10 μm. In the rubber component 100 mass%, the content of the diene rubber is 70 mass% or more.SELECTED DRAWING: None


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    Titel :

    ゴム組成物、空気入りタイヤ及び加硫ブラダー


    Erscheinungsdatum :

    2022-10-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / 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