To provide a multicomponent copolymer that is excellent in low heat generation and is capable of improving roll processability of a rubber composition.SOLUTION: The multicomponent copolymer of the present invention contains a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, wherein, less than 50% of all the aromatic vinyl units is present in an amorphous portion including the conjugated diene units.SELECTED DRAWING: None

    【課題】低発熱性に優れる上、ゴム組成物のロール加工性を向上させることができる多元共重合体を提供する。【解決手段】多元共重合体は、共役ジエン単位と、非共役オレフィン単位と、芳香族ビニル単位とを有し、前記芳香族ビニル単位全体のうち、前記共役ジエン単位を含む非結晶部分に存在するものの割合が50%未満であることを特徴とする。【選択図】なし


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    Title :

    MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION, AND RUBBER ARTICLE


    Additional title:

    多元共重合体、ゴム組成物、架橋ゴム組成物及びゴム物品


    Contributors:

    Publication date :

    2021-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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