PROBLEM TO BE SOLVED: To improve durability of a tire in a low temperature range while maintaining excellent air permeability resistance.SOLUTION: There is provided an air permeability-resistant film for tire comprising a dynamic crosslinking body including a thermoplastic polyester-based elastomer as a continuous phase and a rubber as a disperse phase, obtained by melt-kneading the elastomer and the rubber and dynamically crosslinking. The air permeability-resistant film is a polymer having a melt flow rate of 5 g/10 min or less at a measuring temperature of 190°C and load of 2.16 kg complying with JIS K7210, and contains in the dynamic crosslinking body, 1 to 10 mass% of at least one ethylenic polymer selected from the group consisting of polyethylene, ethylene-vinyl acetate copolymer and ethylene-(meth)acrylic acid alkyl ester copolymer.

    【課題】優れた耐空気透過性を維持しつつ、低温度領域での耐久性を向上する。【解決手段】熱可塑性ポリエステル系エラストマーとゴムを溶融混練し動的架橋させることにより得られた、前記熱可塑性ポリエステル系エラストマーを連続相とし、前記ゴムを分散相とする、動的架橋体からなるタイヤ用耐空気透過性フィルムである。該耐空気透過性フィルムは、JIS K7210に準拠した測定温度190℃、荷重2.16kgでのメルトフローレートが5g/10分以下である重合体であって、ポリエチレン、エチレン−酢酸ビニル共重合体及びエチレン−(メタ)アクリル酸アルキルエステル共重合体からなる群から選択される少なくとも1種のエチレン系重合体を、前記動的架橋体中に1〜10質量%含有する。【選択図】図1


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    Titel :

    AIR PERMEABILITY-RESISTANT FILM FOR TIRE AND METHOD FOR PRODUCTION THEREOF


    Weitere Titelangaben:

    タイヤ用耐空気透過性フィルム及びその製造方法


    Beteiligte:
    SHIMIZU TOSHIKI (Autor:in) / TSUBOI TETSUYA (Autor:in) / ENDO TATSUYA (Autor:in)

    Erscheinungsdatum :

    2016-01-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP



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