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    • 6. 发明授权
    • Process for the polymerization of olefines
    • 烯烃聚合方法
    • US06545106B1
    • 2003-04-08
    • US08851742
    • 1997-05-06
    • Jiang Bian
    • Jiang Bian
    • C08F444
    • C08F10/00C08F4/6355C08F4/6357
    • Process for the polymerization of olefins, according to which at least one olefin is placed in contact with a catalytic system comprising: a) a solid catalytic complex based on magnesium, transition metal and halogen, the said catalytic complex being prepared by reacting, in a first step, at least one magnesium compound with at least one compound of a transition metal from group IVB or VB of the Periodic Table, until a liquid complex is obtained, and, in a subsequent step, by precipitating the said liquid complex using a halogen-containing organoaluminium compound of general formula AlRnX3-n in which R is a hydrocarbon radical, X is a halogen and n is less than 3, in order to collect a solid catalytic complex, and b) an organometallic compound of a metal from groups IA, IIA, IIB, IIIA and IVA of the Periodic Table, c) at least one electron donor used after the first step in the preparation of the solid catalytic complex leading to the production of a liquid complex.
    • 烯烃聚合方法,根据该方法将至少一种烯烃与催化体系接触,所述催化体系包含:a)基于镁,过渡金属和卤素的固体催化络合物,所述催化络合物通过以下步骤制备: 至少一种镁化合物与至少一种元素周期表IVB或VB族过渡金属的化合物直到获得液体络合物,并且在随后的步骤中,通过使用卤素将所述液体络合物沉淀 含有的通式AlRnX3-n的有机铝化合物,其中R是烃基,X是卤素,n小于3,以便收集固体催化络合物,和b)来自基团IA的金属的有机金属化合物, IIA,IIB,IIIA和IVA,c)在制备固体催化剂络合物之后第一步中使用的至少一种电子给体,导致制备液体络合物。
    • 8. 发明授权
    • Process for the polymerization of olefins
    • 烯烃聚合方法
    • US6001939A
    • 1999-12-14
    • US813392
    • 1997-03-07
    • Bernard Van Der SchrickCharles DetrezJiang Bian
    • Bernard Van Der SchrickCharles DetrezJiang Bian
    • C08F4/44C08F10/00C08F10/02C08F110/02C08F210/16
    • C08F10/00C08F10/02C08F110/02C08F210/16
    • Process for the polymerization of olefins, in which at least one olef in is placed in contact with a catalytic system comprising:(a) a solid catalytic complex based on magnesium, on transition metal and on halogen, and(b) an organometallic compound of a metal from groups IA, IIA, IIB, IIIA and IVA of the Periodic Table,the said solid catalytic complex (a) being prepared by reacting, in a first step, at least one magnesium compound with at least one compound of a transition metal from group IVB or VB of the Periodic Table until a liquid complex is obtained, by treating the said liquid complex, in a second step, using a halogen-containing organoaluminium compound, in order to precipitate the liquid complex as a solid catalytic complex, by separating, in a third step, the solid catalytic complex precipitated and by treating, in a fourth step, the separated solid catalytic complex obtained after the third step using a halogen-containing organoaluminium compound of general formula AlR.sub.n X.sub.3-n.The process has the effect of increasing the apparent density of the polyolefin.
    • 其中至少一个烯烃与催化体系接触的烯烃聚合方法包括:(a)基于镁的固体催化络合物,过渡金属和卤素,和(b)有机金属化合物 所述固体催化剂络合物(a)通过在第一步骤中使至少一种镁化合物与至少一种过渡金属化合物反应来制备,所述固体催化剂络合物(a)是来自元素周期表IA,IIA,IIB,IIIA和IVA族的金属, 通过在第二步骤中使用含卤素的有机铝化合物处理所述液体络合物,从而从液晶复合物中获得液体络合物,以便通过使用含卤素的有机铝化合物来沉淀作为固体催化剂络合物的液体络合物,由 在第三步骤中,分离固体催化剂络合物,并且在第四步中,使用通式AlRnX 3的含卤素的有机铝化合物在第三步骤后得到的分离的固体催化剂络合物 -n。 该方法具有增加聚烯烃表观密度的作用。