PROBLEM TO BE SOLVED: To provide a tire inner liner that can have both tire moldability and tire durability, and a pneumatic tire using the same.SOLUTION: There is provided a tire inner liner which is formed of a cylindrical film made of a thermoplastic material obtained by inflation molding, and the cylindrical film has a ratio of 1.35-1.80 of tire peripheral breaking strength to tire widthwise breaking strength. Further, a pneumatic tire is obtained by extruding and molding the cylindrical film having a ratio of 1.35-1.80 of breaking strength in a direction perpendicular to the extrusion direction to breaking strength in the extrusion direction through inflation molding using the thermoplastic material, molding a green tire by installing the obtained cylindrical film on a molding drum with the tire width in the extrusion direction, and subjecting the green tire to vulcanization molding.

    【課題】タイヤ成形性とタイヤ耐久性を両立することができるタイヤインナーライナー及びそれを用いた空気入りタイヤを提供する。【解決手段】インフレーション成形により得られた熱可塑性材料からなる円筒状フィルムよりなるタイヤインナーライナーであって、前記円筒状フィルムの破断強度のタイヤ幅方向/タイヤ周方向の比が1.35〜1.80である。また、空気入りタイヤは、熱可塑性材料を用いたインフレーション成形により、破断強度の押出方向/押出方向に垂直な方向の比が1.35〜1.80である円筒状フィルムを押出成形し、得られた円筒状フィルムを、押出方向がタイヤ幅方向となるように成形ドラム上に設置してグリーンタイヤを成形し、前記グリーンタイヤを加硫成型することにより得られる。【選択図】図2


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    Title :

    TIRE INNER LINER AND PNEUMATIC TIRE


    Additional title:

    タイヤインナーライナー及び空気入りタイヤ


    Contributors:

    Publication date :

    2015-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand



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