Method for the production of polydienes with regulated mooney viscosity
    1.
    发明授权
    Method for the production of polydienes with regulated mooney viscosity 失效
    具有调节门尼粘度的聚二烯的生产方法

    公开(公告)号:US06344527B1

    公开(公告)日:2002-02-05

    申请号:US09622298

    申请日:2000-08-15

    IPC分类号: C08F238

    摘要: This invention relates to a process for the production of polydienes having controlled Mooney viscosity, carried out by means of catalysts based on rare earth compounds, which is characterized in that the conjugated dienes used are polymerized in the presence of from 0.005 to 80 wt. % of 1,2-dienes, based on the sum of conjugated dienes used and of 1,2-dienes used. The polydienes thus produced are used particularly in the manufacture of car tires.

    摘要翻译: 本发明涉及通过基于稀土化合物的催化剂制备具有受控的门尼粘度的聚二烯的方法,其特征在于所用共轭二烯在0.005至80重量%存在下聚合。 基于所使用的共轭二烯和所使用的1,2-二烯的总和,1,2-二烯的百分比。 这样生产的聚二烯是特别用于制造汽车轮胎的。

    Method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes
    2.
    发明授权
    Method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes 失效
    用于制备基于乙烯基芳族化合物和共轭二烯的共聚物的方法

    公开(公告)号:US06417285B2

    公开(公告)日:2002-07-09

    申请号:US09764671

    申请日:2001-01-18

    IPC分类号: C08F834

    CPC分类号: C08C19/20

    摘要: The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130° C. The copolymers produced according to the present invention demonstrate clearly improved processing characteristics as a result of selective masticating effect and good mechanical properties.

    摘要翻译: 本发明提供了一种制备基于乙烯基芳族化合物和共轭二烯的共聚物的方法,其中在聚合之后,在催化剂存在下,将共聚物用多官能硫卤化物处理,温度范围为20〜 130℃。根据本发明生产的共聚物由于选择性咀嚼效果和良好的机械性能而显示出明显改善的加工特性。