PROBLEM TO BE SOLVED: To provide a pneumatic tire having light weight and excellent in cornering powder, load durability and operation stability when traveling at high speed.SOLUTION: There is provided a pneumatic tire containing a reinforcement layer 10 constituted by drawing organic fiber cords 11, where the organic fiber cords 11 are constituted by twisting aramid fiber yarn and polyethylene terephthalate fiber yarn, breaking strength of 9.0 cN/dtex or more, intermediate elongation of 1.5% to 3.0% and twist coefficient represented by the formula (1) in a range of 2350 to 2850 are set, a coating rubber 12 coating the organic fiber cords 11 is constituted by a rubber composition by blending 100 pts.mass of a diene rubber containing a natural rubber and/or an isoprene rubber of at least 30 mass%, 30 to 80 pts.mass of carbon black with nitrogen adsorption specific surface area of 90 m/g or less and 1 to 20 pts.mass of cashew oil with glass transition temperature of -75°C or less.SELECTED DRAWING: Figure 2

    【課題】軽量で、コーナリングパワー、荷重耐久性、および高速走行時の操縦安定性に優れる空気入りタイヤを提供する。【解決手段】有機繊維コード11を引き揃えて構成された補強層10を含む空気入りタイヤにおいて、有機繊維コード11をアラミド繊維ヤーンとポリエチレンテレフタレート繊維ヤーンとを撚り合わせて構成し、破断強度を9.0cN/dtex以上、中間伸度を1.5%〜3.0%、式(1)で表される撚り係数を2350〜2850の範囲に設定する一方で、有機繊維コード11を被覆するコートゴム12を、天然ゴムおよび/またはイソプレンゴムを少なくとも30質量%含むジエン系ゴム100質量部に対し、窒素吸着比表面積が90m2/g以下のカーボンブラックを30〜80質量部、ガラス転移温度が−75℃以下のカシューオイルを1〜20質量部配合したゴム組成物で構成する。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2016-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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 / D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS , Kräuseln oder Texturieren von Fasern, Fäden, Garnen oder Zwirnen



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

    KAYASHIMA KENTARO / YOKOKURA HIROYUKI / SUGIMOTO TOSHIKAZU et al. | European Patent Office | 2017

    Free access

    Pneumatic tire and pneumatic tire molding

    YONETSU ISAO | European Patent Office | 2021

    Free access

    PNEUMATIC TIRE AND PNEUMATIC TIRE ASSEMBLY

    CHAE MIN GI | European Patent Office | 2018

    Free access

    PNEUMATIC TIRE AND PNEUMATIC TIRE MOLDING

    YONETSU ISAO | European Patent Office | 2019

    Free access

    PNEUMATIC TIRE AND PNEUMATIC TIRE SET

    MAEDA YOSHIYUKI | European Patent Office | 2016

    Free access