To provide a pneumatic tire which is excellent in adhesion between a rubber member containing a hydrogenated copolymer and another rubber member while maintaining high strength of the hydrogenated copolymer.SOLUTION: A pneumatic tire comprises: a rubber member A containing a rubber component and sulfur, the rubber component containing 70-100 mass% of a hydrogenated copolymer which is obtained by hydrogenating an aromatic vinyl-conjugated diene copolymer and has a weight-average molecular weight measured by gel permeation chromatography of 300,000 or more and a hydrogenation rate of a conjugated diene moiety of 80 mol% or more; and a rubber member B containing a rubber component and sulfur, the rubber component containing diene rubber. The rubber member A and the rubber member B are in contact with each other with an interface therebetween. A sulfur content of the rubber member A is 0.25 vol.% or more, a sulfur content of the rubber member B is 0.25 vol.% or more, and a total of the sulfur content of the rubber member A and the sulfur content of the rubber member B is 0.7 vol.% or more.SELECTED DRAWING: None

    【課題】水添共重合体が持つ高強度性を維持しつつ、水添共重合体を含有するゴム部材と、他のゴム部材との接着性に優れた空気入りタイヤを提供する。【解決手段】芳香族ビニル−共役ジエン共重合体が水素添加された水添共重合体であって、ゲル浸透クロマトグラフィーにより測定された重量平均分子量が30万以上であり、共役ジエン部の水素添加率が80モル%以上である水添共重合体を70〜100質量%含むゴム成分と、硫黄とを含有するゴム部材Aと、ジエン系ゴムを含むゴム成分と硫黄とを含有するゴム部材Bとを有し、上記ゴム部材Aと上記ゴム部材Bとが界面を持って接しており、上記ゴム部材Aの硫黄含有量が0.25vol%以上であり、上記ゴム部材Bの硫黄含有量が0.25vol%以上であり、上記ゴム部材Aの硫黄含有量と上記ゴム部材Bの硫黄含有量との合計が0.7vol%以上である、空気入りタイヤとする。【選択図】なし


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    PNEUMATIC TIRE


    Weitere Titelangaben:

    空気入りタイヤ


    Beteiligte:
    UCHIDA AYANA (Autor:in)

    Erscheinungsdatum :

    2021-07-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



    Pneumatic tire and pneumatic tire molding

    YONETSU ISAO | Europäisches Patentamt | 2021

    Freier Zugriff

    PNEUMATIC TIRE AND PNEUMATIC TIRE ASSEMBLY

    CHAE MIN GI | Europäisches Patentamt | 2018

    Freier Zugriff

    PNEUMATIC TIRE AND PNEUMATIC TIRE SET

    MAEDA YOSHIYUKI | Europäisches Patentamt | 2016

    Freier Zugriff

    PNEUMATIC TIRE INNER LINER, PNEUMATIC TIRE, AND PNEUMATIC TIRE PRODUCTION METHOD

    KAYASHIMA KENTARO / YOKOKURA HIROYUKI / SUGIMOTO TOSHIKAZU et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    PNEUMATIC TIRE INNER LINER, PNEUMATIC TIRE, AND PNEUMATIC TIRE PRODUCTION METHOD

    KAYASHIMA KENTARO / YOKOKURA HIROYUKI / SUGIMOTO TOSHIKAZU et al. | Europäisches Patentamt | 2017

    Freier Zugriff