Process for polymerizing conjugate diolefins, and means suitable for
this purpose
    1.
    发明授权
    Process for polymerizing conjugate diolefins, and means suitable for this purpose 失效
    用于聚合共轭二烯烃的方法,以及适用于该目的的装置

    公开(公告)号:US4444903A

    公开(公告)日:1984-04-24

    申请号:US413982

    申请日:1982-09-02

    CPC分类号: C08F36/04

    摘要: An improved process is described for preparing conjugate diolefin polymers or copolymers having a high content of 1,4-cis units and high chain linearity, the process using a particular catalytic system prepared from a compound of a metal chosen from those of Group III B of the Periodic System which have an atomic number of between 21 and 103, preferably neodymium, an organic halogen derivative, and an aluminium alkylhydride or trialkyl.

    摘要翻译: 描述了用于制备具有高含量1,4-顺式单元和高链线性的共轭二烯烃聚合物或共聚物的改进方法,该方法使用由选自以下的金属化合物制备的特定催化体系:第IIIB族 原子序数在21和103之间的周期系,优选钕,有机卤素衍生物和烷基铝或三烷基铝。

    Process for preparing conjugate diolefins, and means suitable for this
purpose
    2.
    发明授权
    Process for preparing conjugate diolefins, and means suitable for this purpose 失效
    制备共轭二烯烃的方法,以及适用于此目的的方法

    公开(公告)号:US4525549A

    公开(公告)日:1985-06-25

    申请号:US484956

    申请日:1983-04-14

    CPC分类号: C08F36/04

    摘要: A new process is described for polymerizing and copolymerizing conjugate diolefins characterized by the use of a catalytic system comprising at least one compound of Group III B of the periodic system, at least one non-halogenated aluminium alkyl, at least one compound containing one or more hydroxyls of acid or neutral type, and possibly an inorganic compound containing Cl or Br in ionizable form or an organic halogen derivative.The new process allows the preparation, both in the absence and in the presence of an inert diluent, of polydiolefins of essentially entirely 1,4-cis structure which even in the absence of a purification stage contain a very small quantity of catalytic residues.

    摘要翻译: 描述了用于聚合和共聚共轭二烯烃的新方法,其特征在于使用包含至少一种周期系统的IIIB族化合物的催化体系,至少一种非卤代烷基铝,至少一种含一个或多个 酸或中性型的羟基,以及可能含有可离子化形式的Cl或Br的无机化合物或有机卤素衍生物。 新方法允许在惰性稀释剂不存在和不存在的情况下制备基本上完全为1,4-顺式结构的聚二烯烃,即使在不存在纯化阶段的情况下也含有非常少量的催化残余物。

    Isoprene polymerization process
    3.
    发明授权
    Isoprene polymerization process 失效
    异戊二烯聚合工艺

    公开(公告)号:US4696984A

    公开(公告)日:1987-09-29

    申请号:US866147

    申请日:1986-05-22

    CPC分类号: C08F36/08

    摘要: Isoprene polymers and copolymers are prepared by a polymerization process carried out in the absence of solvents and in the presence of a catalytic system comprising (a) at least one element or compound of an element pertaining to Group IIIB of the Periodic Table, (b) at least one aluminium alkyl derivative, (c) at least one organic halogen derivative or at least one halide of an element able to exist in at least two valency states with the halide corresponding to a higher state than the minimum, or at least one halogen or at least one hydrogen halide acid, (d) at least one compound containing one or more hydroxyl groups of which the hydrogen can be substituted, the ratio of component (b) to component (a) being equal to or less than 20.

    摘要翻译: 异戊二烯聚合物和共聚物通过在不存在溶剂的情况下进行的聚合方法和在包含(a)至少一种元素或元素周期表IIIB族元素的化合物的存在下进行制备,(b) 至少一种烷基铝衍生物,(c)至少一种有机卤素衍生物或能够以至少两个价态存在的元素的至少一种卤化物,其中卤化物对应于比最低值高的状态,或至少一种卤素 或至少一种卤化氢酸,(d)至少一种含有一个或多个羟基的化合物,其中氢可以被取代,组分(b)与组分(a)的比例等于或小于20。