PROBLEM TO BE SOLVED: To provide a method for manufacturing vinyl cis-polybutadiene rubber excellent in tensile stress and low heat generation property compared to a conventional vinyl cis-polybutadiene rubber.SOLUTION: A manufacturing method of vinyl cis-polybutadiene rubber containing a syndiotactic-1,2-polybutadiene component, includes: a first process of cis-1,4 polymerizing 1,3-butadiene; a second process of 1,2-polymerizing 1,3-butadiene in a polymerization reaction mixture obtained in the first process; and a third process of adding further a radical initiator to bind cis-1,4-polybutadiene obtained in the first process and syndiotactic-1,2-polybutadiene obtained in the second process.SELECTED DRAWING: None

    【課題】従来のビニル・シス−ポリブタジエンゴムに比べ、ゴム組成物における引張応力並びに低発熱性に優れたビニル・シス−ポリブタジエンゴムを製造する方法の提供。【解決手段】シンジオタクチック−1,2−ポリブタジエン成分を含むビニル・シス−ポリブタジエンゴムの製造方法であって、1,3−ブタジエンをシス−1,4重合する第1工程と、第1工程で得られた重合反応混合物中の1,3−ブタジエンを、1,2重合する第2工程、さらにラジカル開始剤を加えて第1工程で得られたシス−1,4−ポリブタジエンと第2工程で得られたシンジオタクチック−1,2−ポリブタジエンを結合させる第3工程、を含むビニル・シス−ポリブタジエンゴムの製造方法。【選択図】なし


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    Title :

    MANUFACTURING METHOD OF VINYL CIS-POLYBUTADIENE RUBBER, VINYL CIS-POLYBUTADIENE RUBBER, MANUFACTURING METHOD OF RUBBER COMPOSITION USING VINYL CIS-POLYBUTADIENE RUBBER AND RUBBER COMPOSITION


    Additional title:

    ビニル・シス−ポリブタジエンゴムの製造方法、ビニル・シス−ポリブタジエンゴム、ビニル・シス−ポリブタジエンゴムを用いたゴム組成物の製造法、およびゴム組成物


    Contributors:

    Publication date :

    2017-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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