The present invention relates to the synthetic rubber industry, in particular to the production of polymers for the production of tires and other rubber products. In particular, the present invention relates to a method for the preparation of a modified polydiene, the method comprising the following steps of i) preparing a catalyst complex including (A) a lanthanide compound, (B) a conjugated diene, (C) an organoaluminum compound, and (D) a halogen-containing component; ii) polymerizing a conjugated diene in an organic solvent medium in the presence of the catalyst complex obtained in step i); iii) on reaching at least 96% conversion of the monomer, introducing a modifying agent into the polymer, wherein the modifying agent is a low molecular weight polybutadiene containing terminal alkoxy silane groups; iv) terminating the polymerizate obtained in step iii), introducing an antioxidant and recovering the polymer.


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    Title :

    MODIFIED DIENE POLYMER AND METHOD FOR THE PREPARATION THEREOF


    Additional title:

    MODIFIZIERTES DIENPOLYMER UND VERFAHREN ZU SEINER HERSTELLUNG
    POLYMÈRE DIÈNE MODIFIÉ ET PROCÉDÉ POUR SA PRÉPARATION



    Publication date :

    2023-08-23


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




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