Provided are a conjugated diene-based polymer, a conjugated diene-based polymer composition, and a crosslinked product of a conjugated diene-based polymer, etc. that have no problems in practical use with processability and heat resistance and are excellent in compression set and cold resistance. The present invention provides a conjugated diene-based polymer satisfying the following mathematical expression (A): mathematical expression (A): 35 (%) ≤ 100*(b + d) / (a + b + c + d) ≤ 99 (%) wherein constituent molar ratios of respective structure units represented by the following structural formulas (1) to (4) are defined as a, b, c, and d, respectively, having a Mooney viscosity at 100°C of 25 or more and 125 or less, having a glass transition temperature of -50°C or less measured by differential scanning calorimetry (DSC), and having a crystallization peak-derived heat of crystallization of 2.5 J/g or more and 50 J/g or less.


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    Title :

    CONJUGATED DIENE POLYMER, CONJUGATED DIENE POLYMER COMPOSITION, AND CONJUGATED DIENE POLYMER CROSSLINKED PRODUCT


    Additional title:

    KONJUGIERTES DIENPOLYMER, KONJUGIERTE DIENPOLYMERZUSAMMENSETZUNG UND VERNETZTES PRODUKT AUS KONJUGIERTEM DIENPOLYMER
    POLYMÈRE DE DIÈNE CONJUGUÉ, COMPOSITION DE POLYMÈRE DE DIÈNE CONJUGUÉ ET PRODUIT RÉTICULÉ DE POLYMÈRE DE DIÈNE CONJUGUÉ


    Contributors:

    Publication date :

    2025-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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