To provide a bale of a modified conjugated diene-based polymer composition capable of obtaining a rubber composition having excellent fuel-saving performance, which has a small change with time, can guarantee stable quality, can improve storage stability in an unvulcanized state when formed into a rubber composition containing silica and exhibits excellent dispersibility of silica.SOLUTION: There is provided a bale of a modified conjugated diene-based polymer composition which comprises 100 pts.mass of a rubber component containing a modified conjugated diene-based polymer and 0.1 to 10 pts.mass of a nonionic surfactant, wherein the modified conjugated diene-based polymer contains 0.25 mass% or more and 30 mass% or less of a component of a modified conjugated diene-based polymer having a weight average molecular weight of 20×10or more and 300×10or less and a molecular weight of 200×10or more and 500×10or less based on the total amount of the modified conjugated diene-based polymer and has a shrinkage factor (g') of less than 0.64.SELECTED DRAWING: None

    【課題】経時変化が小さく安定した品質を担保でき、シリカを含むゴム組成物とした場合に、未加硫状態での保存安定性を向上でき、かつ優れたシリカの分散性を発現することで、優れた省燃費性能を有するゴム組成物を得ることが可能な、共役ジエン系重合体組成物のベールを提供する。【解決手段】変性共役ジエン系重合体を含むゴム成分100質量部と、非イオン界面活性剤0.1〜10質量部と、を、含む、変性共役ジエン系重合体組成物のベールであって、前記変性共役ジエン系重合体が、重量平均分子量が20×104以上300×104以下であり、かつ前記変性共役ジエン系重合体の総量に対して、分子量が200×104以上500×104以下である変性共役ジエン系重合体の成分を0.25質量%以上30質量%以下含み、収縮因子(g’)が0.64未満である、変性共役ジエン系重合体組成物のベール。【選択図】なし


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    Title :

    BALE OF MODIFIED CONJUGATED DIENE-BASED POLYMER COMPOSITION AND METHOD FOR PRODUCING BALE OF MODIFIED CONJUGATED DIENE-BASED POLYMER COMPOSITION


    Additional title:

    変性共役ジエン系重合体組成物のベール、及び変性共役ジエン系重合体組成物のベールの製造方法


    Contributors:
    HAYATA DAISUKE (author) / SUZUKI RYO (author)

    Publication date :

    2020-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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