PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition capable of producing an inner liner for pneumatic tire which is less in reduction of gas barrier properties by fatigue.SOLUTION: A thermoplastic resin composition is formed of a matrix phase containing an ethylene-vinyl alcohol copolymer (A) and a dispersion phase containing a brominated isobutylene-p-methylstyrene copolymer (B) and an acid modified styrene-ethylene-butylene-styrene copolymer (C), where weight ratios W, Wand Wof (A), (B) and (C) with respect to the total weight of the polymer component in the thermoplastic resin composition, a vinyl alcohol content V(wt.%) in (A), a p-bromo methylstyrene content B(wt.%) in (B) and a styrene content S(wt.%) in (C) satisfy 0.02≤(W×B)×(W×S)/(W×V)≤0.85.SELECTED DRAWING: None

    【課題】疲労によるガスバリア性の低下が少ない空気入りタイヤ用インナーライナーを製造することができる熱可塑性樹脂組成物を提供する。【解決手段】エチレン−ビニルアルコール共重合体(A)を含むマトリックス相と臭素化イソブチレンパラメチルスチレン共重合体(B)および酸変性スチレン−エチレン−ブチレン−スチレン共重合体(C)を含む分散相とからなる熱可塑性樹脂組成物であって、熱可塑性樹脂組成物中のポリマー成分の合計重量に対する(A)、(B)、(C)それぞれの重量の比WA、WB、WC、(A)中のビニルアルコール含量VA(重量%)、(B)中のp−ブロモメチルスチレン含量BB(重量%)、および(C)中のスチレン含量SC(重量%)が0.02≦(WB×BB)×(WC×SC)/(WA×VA)≦0.85を満たすことを特徴とする。【選択図】なし


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    Title :

    THERMOPLASTIC RESIN COMPOSITION, INNER LINER, AND PNEUMATIC TIRE


    Additional title:

    熱可塑性樹脂組成物、インナーライナーおよび空気入りタイヤ


    Contributors:
    SATO SHUN (author)

    Publication date :

    2018-08-09


    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



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