The purpose of the present invention is to provide a conjugated diene polymer which has extremely excellent processability when used as a sulfide and which has excellent wear resistance, handling stability, and breaking strength after being used as a sulfide. A conjugated diene polymer having a Mooney viscosity measured at 100 DEG C of 40-170, a Mooney stress relaxation rate measured at 100 DEG C of 0.35 or less, and a branching degree (Bn) of 8 or more as determined by a GPC-light scattering measurement method with a viscosity detector.

    本发明的目的在于提供一种在制作硫化物时的加工性极其优异、制成硫化物后的耐磨耗性、操纵稳定性、破坏强度优异的共轭二烯系聚合物。一种共轭二烯系聚合物,其在100℃测定的门尼粘度为40以上170以下,在100℃测定的门尼应力松弛率为0.35以下,通过带粘度检测器的GPC‑光散射法测定法求出的支化度(Bn)为8以上。


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    Title :

    Conjugated diene polymer, method for producing conjugated diene polymer, conjugated diene polymer composition, and rubber composition


    Additional title:

    共轭二烯系聚合物、共轭二烯系聚合物的制造方法、共轭二烯系聚合物组合物以及橡胶组合物


    Contributors:
    SEKIKAWA SHINICHI (author) / HISAMURA KENTA (author) / TOBO TAKASHI (author) / SUMIYA SHOGO (author) / KYO MIKI (author)

    Publication date :

    2022-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen