PROBLEM TO BE SOLVED: To provide a production method of a modified polymer capable of achieving reduction of heat generation property of a tire, a modified polymer obtained by the production method, a rubber composition containing the modified polymer and a pneumatic tire obtained by using the rubber composition.SOLUTION: The production method of a modified polymer is provided in which the modified polymer is obtained by modifying a conjugated diene polymer (A) with a nitrone compound (B) having a carboxyl group and the nitrone compound (B) is particulate with an average length in a long side direction of 50 μm or less.SELECTED DRAWING: None

    【課題】本発明は、タイヤの発熱性の低減を図ることができる変性ポリマーの製造方法、ならびに、その製造方法により得られる変性ポリマー、その変性ポリマーを含有するゴム組成物、および、そのゴム組成物を使用した空気入りタイヤを提供することを課題とする。【解決手段】共役ジエン重合体(A)を、カルボキシ基を有するニトロン化合物(B)によって変性することで得られる変性ポリマーの製造方法であって、上記ニトロン化合物(B)が、長辺方向の平均長さが50μm以下の粒子状である、変性ポリマーの製造方法。【選択図】なし


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    Title :

    PRODUCTION METHOD OF MODIFIED POLYMER, MODIFIED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE


    Additional title:

    変性ポリマーの製造方法、変性ポリマー、ゴム組成物および空気入りタイヤ


    Contributors:

    Publication date :

    2017-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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