Conventionally, a bladder having a multi-layer structure has been proposed. However, a lot of effort is required for the production of the bladder, and therefore a bladder having a desired bladder life has not been produced yet. Then, the present invention provides a rubber composition for a tire-vulcanizing bladder, said rubber composition being characterized by containing a rubber component that contains a butyl rubber in an amount of 92 parts by mass or more relative to 100 parts by mass of the rubber component, wherein the butyl rubber is composed of 30 to 100% by mass of a butyl rubber (1) having an unsaturation degree of 0.6 to 1.1% and 0 to 70% by mass of a butyl rubber (2) having an unsaturation degree of 1.5 to 2.0%.


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    Titel :

    タイヤ加硫ブラダーの使用方法


    Erscheinungsdatum :

    2020-07-08


    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 / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / 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