MANUFACTURING METHOD FOR POLYMER COMPOSITION, AND POLYMER COMPOSITION
    37.
    发明公开
    MANUFACTURING METHOD FOR POLYMER COMPOSITION, AND POLYMER COMPOSITION 审中-公开
    用于聚合物组合物和聚合物组合物

    公开(公告)号:EP2873697A4

    公开(公告)日:2016-03-23

    申请号:EP13815947

    申请日:2013-07-11

    申请人: BRIDGESTONE CORP

    摘要: An object of the present invention is to provide a polymer composition having properties resembling those of natural rubber, e.g. good durability (fracture resistance, wear resistance, and crack growth resistance), and a method for manufacturing the polymer composition. Specifically, the present invention provides a method for manufacturing a polymer composition including a mixture of polyisoprene and polystyrene/polybutadiene, comprising: polymerizing styrene monomer or butadiene monomer in the presence of a catalyst to synthesize polystyrene or polybutadiene; adding isoprene monomer to the polystyrene or polybutadine thus synthesized, to synthesize polyisoprene and thus generate said mixture, wherein content of the styrene monomer or the butadiene monomer is set to be 10 mol % or less with respect to the total quantity of the styrene monomer/the butadiene monomer and the isoprene monomer.

    MODIFIED CONJUGATED DIENE POLYMER, METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION USING SAME
    39.
    发明公开
    MODIFIED CONJUGATED DIENE POLYMER, METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION USING SAME 有权
    改性共轭二烯聚合物,其制备方法以及使用该方法的橡胶组合物

    公开(公告)号:EP2966098A1

    公开(公告)日:2016-01-13

    申请号:EP14759650.6

    申请日:2014-03-07

    摘要: An object of the present invention is to provide a modified conjugated diene polymer that is excellent in processability and impact resilience, has markedly improved abrasion resistance and crack growth resistance, is excellent in low heat generation properties, and has low energy loss, a method for producing the same, and a rubber composition using the same. The invention of the present application provides a modified conjugated diene polymer obtained by polymerizing a conjugated diene compound using a catalyst including from (A) an yttrium compound having a bulky ligand represented by general formula (1), (B) an ionic compound formed of a non-coordinating anion and a cation, and (C) an organic metal compound of an element selected from the group consisting of group 2, group 12 and group 13 of the periodic table and modifying the conjugated diene polymer with a carbonyl compound, a method for producing the same, and a rubber composition using the same.

    摘要翻译: 本发明的目的在于提供加工性和回弹性优异,耐磨损性和耐裂纹生长性显着提高,低发热性优异,能量损失低的改性共轭二烯系聚合物, 生产它的橡胶组合物,以及使用其的橡胶组合物。 本申请发明提供一种改性共轭二烯系聚合物,该共轭二烯系聚合物使用包含(A)具有通式(1)所示的大体积配体的钇化合物,(B)由 (C)选自元素周期表第2族,第12族和第13族的元素的有机金属化合物,并用羰基化合物改性共轭二烯聚合物, 其制造方法以及使用该方法的橡胶组合物。