A modified conjugated diene-based polymer having a nitrogen atom, whereina content of the nitrogen atom is 25 mass ppm or more based on a total amount of the modified conjugated diene-based polymer,a shrinking factor (g′) is 0.59 or less in a GPC-light scattering measurement method with a viscosity detector, anda weight average molecular weight is 200,000 or more and 3,000,000 or less.


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    Title :

    Modified conjugated diene-based polymer, production method thereof, rubber composition and tire


    Contributors:
    KYO MIKI (author) / HISAMURA KENTA (author)

    Publication date :

    2021-08-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen