To provide a multicomponent copolymer for use for producing a rubber composition and a rubber product having high wear resistance and wet performance, and provide a rubber composition containing the multicomponent copolymer, a crosslinked rubber composition obtained by crosslinking the rubber composition, and a tire and a rubber product using the rubber composition or the crosslinked 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 the content of the aromatic vinyl unit is 5 mol% or more to less than 50 mol% of the whole multicomponent copolymer, and the content of the non-conjugated olefin unit is more than 0 mol% or 50 mol% or less of the whole multicomponent copolymer.SELECTED DRAWING: None

    【課題】本発明の目的は、高い耐摩耗性及びウェット性能を有するゴム組成物やゴム製品を製造するために使用される多元共重合体を提供することである。更に、前記多元共重合体を含むゴム組成物、該ゴム組成物を架橋してなる架橋ゴム組成物、並びに前記ゴム組成物又は架橋ゴム組成物を用いたタイヤ及びゴム製品を提供することである。【解決手段】本発明の多元共重合体は、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含有する多元共重合体であって、芳香族ビニル単位の含有量が、多元共重合体全体の5mol%以上50mol%未満であり、非共役オレフィン単位の含有量が、多元共重合体全体の0mol%を超え、50mol%以下であることを特徴とする。【選択図】なし


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    Titel :

    MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION, RUBBER PRODUCT, AND TIRE


    Weitere Titelangaben:

    多元共重合体、ゴム組成物、架橋ゴム組成物、ゴム製品、及びタイヤ


    Beteiligte:
    KOTANI KYOHEI (Autor:in) / TAKANO SHIGENAGA (Autor:in) / OISHI SHIGEKI (Autor:in) / AIDA SHOJIRO (Autor:in)

    Erscheinungsdatum :

    2021-05-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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



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