Cationic polymerization process and catalyst system therefor
    9.
    发明授权
    Cationic polymerization process and catalyst system therefor 失效
    阳离子聚合工艺及其催化剂体系

    公开(公告)号:US06699950B1

    公开(公告)日:2004-03-02

    申请号:US09869601

    申请日:2001-08-30

    IPC分类号: C08F214

    摘要: A process for producing a copolymer of an isoolefin and at least one other comonomer comprising the step of polymerizing a reaction mixture comprising an isoolefin, a catalyst and at least one of a cycloconjugated muitiolefin and an unconjugated cyclic olefin in the presence of an activator comprising a carbo cation producing species, a silica cation producing species and mixtures thereof. The process can be practiced using a slurry polymerization approach. One of the main benefits achieved with the present invention is the conversion of the monomers over a shorter period of time and higher percent conversion than when the activator is not used.

    摘要翻译: 一种制备异烯烃和至少一种其它共聚单体的共聚物的方法,包括在活化剂存在下聚合包含异烯烃,催化剂和环状共轭多烯共聚物和非共轭环烯烃中的至少一种的反应混合物的步骤, 碳阳离子产生物质,二氧化硅阳离子产生物质及其混合物。 该方法可以使用淤浆聚合方法来实施。 用本发明实现的主要优点之一是在不使用活化剂的情况下,在更短的时间内转化单体并且转化率高。