PROBLEM TO BE SOLVED: To provide a modified polymer whose heat generation property when it is made into a rubber composition is greatly reduced due to the modification, a rubber composition which contains the modified polymer, and a pneumatic tire which uses the rubber composition.SOLUTION: A modified polymer can be obtained by modifying a styrene-conjugated diene copolymer (A) with a nitrone compound (B). The content of styrene units in the styrene-conjugated diene copolymer (A) is 10% by mass or more, and the ratio of vinyl bonds in all the double bonds contained in the styrene-conjugated diene copolymer (A) is 5 mol% or more.

    【課題】ゴム組成物としたときの発熱性が変性により大幅に低減された変性ポリマー、および、その変性ポリマーを含有するゴム組成物、並びに、そのゴム組成物を使用した空気入りタイヤを提供する。【解決手段】スチレン−共役ジエン共重合体(A)を、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であって、上記スチレン−共役ジエン共重合体(A)中のスチレン単位の含有量が、10質量%以上であり、上記スチレン−共役ジエン共重合体(A)に含まれる全ての二重結合のうちビニル結合が占める割合が、5mol%以上である、変性ポリマー。【選択図】なし


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    MODIFIED POLYMER, RUBBER COMPOSITION, AND PNEUMATIC TIRE


    Weitere Titelangaben:

    変性ポリマーおよびゴム組成物並びに空気入りタイヤ


    Beteiligte:
    TAKAHASHI RYOTA (Autor:in) / KATO MANABU (Autor:in) / OKAMATSU TAKAHIRO (Autor:in) / KIRINO YOSHIAKI (Autor:in)

    Erscheinungsdatum :

    2015-09-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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



    MODIFIED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE

    TAKAHASHI RYOTA / KATO MANABU / OKAMATSU TAKAHIRO et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Modified polymer, rubber composition and pneumatic tire

    TAKAHASHI RYOTA / KATO MANABU / OKAMATSU TAKAHIRO et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    Modified pneumatic tire rubber composition

    FU XINGDUO / GAO YANG | Europäisches Patentamt | 2015

    Freier Zugriff

    POLYMER MODIFIER COMPOSITION, MODIFIED POLYMER, RUBBER COMPOSITION, AND PNEUMATIC TIRE

    AKIYAMA HISAE / TAKAHASHI RYOTA / OKAMATSU TAKAHIRO | Europäisches Patentamt | 2016

    Freier Zugriff

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

    TAKAHASHI RYOTA / ZHANG DI / OKAMATSU TAKAHIRO | Europäisches Patentamt | 2018

    Freier Zugriff