PROBLEM TO BE SOLVED: To provide a functionalized polymer which provides reduced hysteresis and reduced cold flow, which are advantageous in tire production.SOLUTION: Provided is a functionalized polymer produced by a method including steps of: (i) forming a reactive polymer with a cis-1,4-polydiene chain by polymerizing a conjugated diene by a lanthanide-based coordination catalyst, the reactive polymer having a cis-1,4-bond content of 90% or more; and (ii) reacting the reactive polymer and a nitrile compound having a protected amino group, represented by the following formula. [R1 is a divalent organic group; and R2 and R3 are univalent organic groups or hydrolyzable groups, or divalent organic groups bonded to each other.]

    【課題】タイヤ製造において有利となる低減したヒステリシス及び低減したコールドフローを与える官能化ポリマーの提供。【解決手段】(i)共役ジエンをランタニド系配位触媒で重合させてシス−1,4−結合含有量が90%よりも多いシス−1,4−ポリジエン鎖反応性ポリマーを形成する工程と、(ii)前記反応性ポリマーと下記式で示される保護されたアミノ基を含有するニトリル化合物とを反応させる工程と、を含む方法によって製造された官能化ポリマー。[R1;二価の有機基、R2,R3;一価の有機基又は加水分解性基であるか、互いに結合した二価の有機基]【選択図】図1


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    Title :

    POLYMER FUNCTIONALIZED WITH NITRILE COMPOUND CONTAINING PROTECTED AMINO GROUP


    Additional title:

    保護されたアミノ基を含有するニトリル化合物で官能化されたポリマー


    Contributors:

    Publication date :

    2015-09-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / B60C VEHICLE TYRES , Fahrzeugreifen




    Polymers functionalized with nitrile compounds containing a protected amino group

    LUO STEVEN / SUZUKI EIJU / BRUMBAUGH DENNIS R | European Patent Office | 2016

    Free access



    POLYMERS FUNCTIONALISED WITH NITRILE COMPOUNDS CONTAINING PROTECTED AMINO GROUP

    LUO STIVEN | European Patent Office | 2015

    Free access