To provide a polymer composition that can produce a vulcanized rubber having moderate stickiness/adhesiveness and also high strength, and good on-ice grip performance.SOLUTION: Provided is a polymer composition that contains (A) conjugated diene-based polymer, and (B) at least one compound selected from the group consisting of polysiloxane-based compound and fluorine-containing compound, and in which (A) conjugated diene-based polymer contains (A-1) polymer that satisfies, setting the composition ratios (mole ratio) of the structural units represented by the formulas (1) to (4) in the polymer as p, q, r, and s, respectively, the condition of the mathematical expression (i). Mathematical expression (i): 0.75≤(p+(0.5×r))/(p+q+(0.5×r)+s)≤0.95.SELECTED DRAWING: None

    【課題】適度な粘接着性を有し、しかも高強度であって、かつ氷上グリップ性能が良好な加硫ゴムを製造することができる重合体組成物を提供すること。【解決手段】(A)共役ジエン系重合体、及び、(B)ポリシロキサン系化合物及びフッ素含有化合物よりなる群から選択される少なくとも1種の化合物、を含有し、(A)共役ジエン系重合体は、式(1)~式(4)で表される構造単位の重合体中の構成比(モル比)をそれぞれp、q、r、sとしたとき、数式(i)の条件を満たす(A-1)重合体を含有する重合体組成物とする。数式(i):0.75≦(p+(0.5×r))/(p+q+(0.5×r)+s)≦0.95TIFF2022057957000009.tif33106【選択図】なし


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    Title :

    POLYMER COMPOSITION, CROSSLINKED BODY, AND TIRE


    Additional title:

    重合体組成物、架橋体及びタイヤ


    Contributors:

    Publication date :

    2022-04-11


    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 / 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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    KIKUCHI TOSHIMITSU / SENGA HIROFUMI / SAKAGAMI YUTO et al. | European Patent Office | 2022

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    KIKUCHI TOSHIMITSU / SENGA HIROFUMI / SAKAGAMI YUTO et al. | European Patent Office | 2022

    Free access