PROBLEM TO BE SOLVED: To provide a conjugated diene polymer that has excellent workability and can provide a rubber crosslinked product (tire) having excellent mechanical strength and chipping resistance.SOLUTION: A conjugated diene polymer has a thermally reversible bond group at a terminal of a polymer chain represented by formula 1 (R-Rindependently represent H, a C1-10 alkyl group, a C6-12 aryl group or a halogen atom; Xis -O-, -S-, -S(=O)-, -SO-, -NH-, -C(=O)-, or -OC(=O)-; Xis any bond group; Polymer is a polymer chain comprising a conjugated diene monomer unit).SELECTED DRAWING: None

    【課題】優れた加工性を有し、機械強度および耐チッピング性に優れたゴム架橋物(タイヤ)を与えることのできる共役ジエン系重合体の提供。【解決手段】式1で表される重合体鎖末端に、熱可逆性結合基を有する共役ジエン系重合体。(R1〜R5は各々独立に、H、C1〜10のアルキル基、C6〜12のアリール基又はハロゲン原子;X1は、−O−、−S−、−S(=O)−、−SO2−、−NH−、−C(=O)−、又は−OC(=O)−;X2は任意の結合基;Polymerは、共役ジエン単量体単位を含んでなる重合体鎖)【選択図】なし


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    Title :

    CONJUGATED DIENE POLYMER AND RUBBER COMPOSITION


    Additional title:

    共役ジエン系重合体およびゴム組成物


    Contributors:

    Publication date :

    2016-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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