公开(公告)号：US4692501A

公开(公告)日：1987-09-08

申请号：US761330

申请日：1985-07-31

申请人： Hideo Mineshima ,  Haruyuki Koda ,  Ryoichi Yamamoto

发明人： Hideo Mineshima ,  Haruyuki Koda ,  Ryoichi Yamamoto

IPC分类号： C08F2/00 ,  C08F2/14 ,  C08F6/00 ,  C08F6/06 ,  C08F10/00 ,  C08F110/06 ,  C08F6/24

CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/901

摘要： In a process for producing an olefin polymer which comprises continuously polymerizing an olefin in the presence of a catalyst composed of a transition metal compound component and an organometallic compound component in at least two independent polymerization zones connected in series by a pipeline while feeding the olefin and the catalyst into an upstream zone of polymerization and withdrawing the resulting polymer from a downstream zone of polymerization; the improvement wherein(1) the polymerization in the upstream polymerization zone is carried out in a liquid medium under conditions for slurry polymerization,(2) the solid polymer-containing slurry discharged from the upstream polymerization zone is fed into a liquid medium exchanging zone through an upper feed opening (A) in its upper portion, said liquid medium exchanging zone being provided between the upstream polymerization zone and the downstream polymerization zone and connected to these zones by pipelines, and an additional supply of the liquid medium is fed into said exchanging zone through a lower feed opening (B) in the lower portion of said exchanging zone,(3) the discharge flow from an upper discharge opening (C) in the exchanging zone above the upper feed opening (A) is recycled to the upstream polymerization zone, and the discharge flow from a bottom discharge opening (D) in the exchanging zone below the lower feed opening (B) is fed into the downstream polymerization zone, and(4) the amount of the liquid medium in the discharge stream from the bottom discharge opening (D) is adjusted to 1 to 8 times the volume of the additional liquid medium fed from the lower feed opening (B), and thus the precipitated solid polymer is discharged from the bottom discharge opening (D) while it is concurrent with, and in contact with, the liquid medium from the lower feed opening (B).

摘要翻译： 在制备烯烃聚合物的方法中，所述烯烃聚合物包括在由过渡金属化合物组分和有机金属化合物组分组成的催化剂的存在下在至少两个独立的聚合区域中连续聚合烯烃，所述至少两个独立的聚合区域通过管道串联连接，同时进料所述烯烃， 催化剂进入聚合的上游区域并从下游聚合区域抽出所得聚合物; 其改进在于（1）上游聚合区中的聚合在液体介质中在淤浆聚合条件下进行，（2）从上游聚合区排出的含固体聚合物的浆料通过 所述液体介质交换区设置在所述上​​游聚合区和所述下游聚合区之间，并且通过管道连接到所述区，并且所述液体介质的附加供应被供给到所述交换区 通过所述交换区的下部的下供给口（B），（3）从上供给口（A）上方的交换区中的上排出口（C）的排出流被再循环至上游聚合 并且从下部进料口（B）下方的交换区域中的底部排出口（D）的排出流被供给到下游聚合 n区域，和（4）来自底部排出口（D）的排出流中的液体介质的量被调节为从下部供给口（B）供给的附加液体介质的体积的1至8倍，以及 因此沉淀的固体聚合物从底部排出口（D）排出，同时与来自下部进料口（B）的液体介质同时接触。

公开(公告)号：US4316966A

公开(公告)日：1982-02-23

申请号：US197530

申请日：1980-10-16

申请人： Hideo Mineshima ,  Nobuo Sato ,  Susumu Masaki

发明人： Hideo Mineshima ,  Nobuo Sato ,  Susumu Masaki

IPC分类号： C08F2/00 ,  C08F4/00 ,  C08F4/60 ,  C08F297/00 ,  C08F297/08

CPC分类号： C08F297/086

摘要： In a process for producing a chemically blended propylene resin composition having an ethylene content of about 1 to about 40 mole % based on the entire monomer units of the resin composition which comprises (i) a pre-polymerization step, and (ii) a multiplicity of subsequent polymerization steps, the improvement wherein (I) the pre-polymerization step (i) is either (I-A) a step wherein about 1 to about 1500 g, per millimole of titanium atom, of ethylene is polymerized, (I-B) a step wherein about 1 to about 1500 g, per millimole of titanium atom, of propylene is polymerized, or (I-C) a step wherein about 1 to about 1000 g, per millimole of titanium atom, of an alpha-olefin having 4 to 10 carbon atoms is polymerized, and (II) said multiplicity of polymerization steps (ii) are the following steps (II-1), (II-2) and (II-3) which are carried out in separate reaction zones different from the reaction zone of the pre-polymerization step (i) in this order or in the order of (II-1), (II-3) and (II-2), (II-1) a step of polymerizing propylene to form not less than about 5000 g, per millimole of titanium atom, of crystalline polypropylene having an isotactic index of at least 90 which accounts for about 55 to about 95% by weight of the final resin composition, provided that when step (I-B) is employed as the pre-polymerization step (i), the amount of the product includes that of polypropylene formed in step (I-B), (II-2) a step of polymerizing propylene and ethylene to form an amorphous or a low-crystalline propylene/ethylene copolymer containing about 20 to about 80 mole % of propylene units, and (II-3) a step of polymerizing ethylene, or both ethylene and propylene, to form crystalline polyethylene or a crystalline ethylene/propylene copolymer containing up to about 20 mole % of propylene units.

摘要翻译： 在制备基于树脂组合物的整个单体单元的乙烯含量为约1至约40摩尔％的化学共混丙烯树脂组合物的方法中，其包含（i）预聚合步骤，和（ii）多重性 的改进，其中（I）预聚合步骤（i）是（IA）步骤，其中每毫摩尔钛原子约1至约1500g的乙烯聚合，（IB）步骤 其中约1至约1500g每毫摩尔钛原子的丙烯聚合，或（IC）步骤，其中每毫摩尔钛原子约1至约1000g的具有4至10个碳原子的α-烯烃 （II）所述多重聚合步骤（ii）是在与反应区不同的分开的反应区中进行的以下步骤（II-1），（II-2）和（II-3） 预聚合步骤（i）按照（II-1），（II-3）和（II-3）的顺序进行 （II-2）中，（II-1）使丙烯聚合形成不小于约5000g /毫摩尔钛原子的全同立构指数至少为90的结晶聚丙烯的步骤，其为约55至约95 （ⅠB）作为预聚合步骤（i）时，产物的量包括在步骤（IB），（II-2）a中形成的聚丙烯的量 聚合丙烯和乙烯以形成含有约20至约80摩尔％丙烯单元的无定形或低结晶丙烯/乙烯共聚物的步骤，和（II-3）将乙烯或乙烯和丙烯两者聚合的步骤， 形成结晶聚乙烯或含有至多约20摩尔％丙烯单元的结晶乙烯/丙烯共聚物。