公开(公告)号：US4550144A

公开(公告)日：1985-10-29

申请号：US495654

申请日：1983-05-18

申请人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

发明人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

IPC分类号： C08F4/00 ,  C08F4/42 ,  C08F4/60 ,  C08F4/64 ,  C08F297/00 ,  C08F297/08

CPC分类号： C08F297/083

摘要： A propylene-ethylene block copolymer from which molded products having high rigidity and superior high-impact properties can be prepared even without adding any particular additive, is provided, which copolymer is obtained by (i) polymerizing propylene in 70 to 95 weight % based on the total polymerized amount, using a catalyst obtained by reacting an organoaluminum compound (I) or a reaction product of (I) with an electron donor (A), with TiCl.sub.4, further reacting the resulting solid product (II) with (A) and an electron acceptor (B), and combining the resulting solid product (III) with an organoaluminum compound (IV) and an aromatic carboxylic acid ester (V), the molar ratio of (V) to (III) being 0.1 to 10.0, and then (ii) polymerizing ethylene or ethylene and propylene in 30 to 5 weight % based on the total polymerized amount, at one or more stages, using the same catalyst as above, the ethylene content being 3 to 20 weight % based on the total polymerized amount.

摘要翻译： 提供了一种丙烯 - 乙烯嵌段共聚物，其中即使不添加任何特定的添加剂，也可以制备具有高刚性和高冲击性的成型产品，该共聚物通过以下方法获得：（i）基于 使用通过使有机铝化合物（I）或（I）的反应产物与电子给体（A）反应得到的催化剂与TiCl 4反应得到的固体产物（II）与（A）和 电子受体（B），并将得到的固体产物（III）与有机铝化合物（IV）和芳族羧酸酯（V）组合，（V）与（III）的摩尔比为0.1-10.0，和 然后（ii）使用与上述相同的催化剂在一个或多个阶段以30-5重量％的比例聚合乙烯或乙烯和丙烯，基于总聚合的乙烯含量为3-20重量％ 量。

公开(公告)号：US4582878A

公开(公告)日：1986-04-15

申请号：US634311

申请日：1984-07-25

申请人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

发明人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

IPC分类号： C08F4/00 ,  C08F2/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/642 ,  C08F4/658 ,  C08F210/00 ,  C08F210/16 ,  C08F297/00 ,  C08F297/08

CPC分类号： C08F297/086 ,  Y10S436/813

摘要： A high-rigidity, whitening-resistant ethylene-propylene copolymer is provided, which is obtained by copolymerizing propylene with ethylene at three successive stages wherein at the respective first, second and third stages, a copolymer fraction having a specified ethylene content is formed in a specified amount based on the total polymerization amount, in the presence of a catalyst obtained by reacting an organoaluminum compound (L) or a reaction product thereof with an electron donor (E) with TiCl.sub.4 ; reacting the resulting solid product (I) with an (E) and an electron acceptor; and combining the resulting solid product (II) with an (L) and an aromatic carboxylic acid ester (R), the molar ratio of (R) to (II) being specified, and in the presence of hydrogen.

摘要翻译： 提供了一种高刚性，耐白化的乙烯 - 丙烯共聚物，其通过在连续三个阶段将丙烯与乙烯共聚而获得，其中在相应的第一，第二和第三阶段，具有特定乙烯含量的共聚物部分形成在 在通过有机铝化合物（L）或其与电子给体（E）的反应产物与TiCl 4反应获得的催化剂存在下，基于总聚合量的指定量; 使得到的固体产物（I）与（E）和电子受体反应; 并将得到的固体产物（II）与（L）和芳族羧酸酯（R），（R）与（II）的摩尔比规定并且在氢的存在下混合。

公开(公告)号：US4522994A

公开(公告)日：1985-06-11

申请号：US449857

申请日：1982-12-15

申请人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

发明人： Hiromasa Chiba ,  Katsumi Kumahara ,  Takakiyo Harada ,  Takahiro Oka ,  Akihiro Sato

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/658 ,  C08F8/00 ,  C08F10/00 ,  C08F110/06 ,  C08F10/06

CPC分类号： C08F110/06

摘要： A polypropylene resin from which high-rigidity molded products can be produced even when no particular additive is added, is provided, which resin has a melt rate of 0.1 to 100, a density of 0.905 to 0.936, and a boiling n-heptane-insoluble part whose isotactic pentad ratio (P.sub.o) is 0.975 to 0.995, and whose pentad ratio (P.sub.2) having two different kinds of configurations of 0.002 to 0.000%, and preferably has a melting point of 165.degree. to 170.degree. C. as measured by differential scanning calorimetry.

摘要翻译： 即使没有添加特定的添加剂，也可以制造高刚性成型体的聚丙烯树脂，该树脂的熔融比为0.1〜100，密度为0.905〜0.936，沸腾正庚烷不溶 其全同立构五价比（Po）为0.975〜0.995的部分，其两种不同构型的五价比（P2）为0.002〜0.000％，优选熔点为165〜170℃。 扫描量热法。

公开(公告)号：US4500682A

公开(公告)日：1985-02-19

申请号：US495655

申请日：1983-05-18

申请人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Sato

发明人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Sato

IPC分类号： C08F2/00 ,  C08F8/00 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F297/00 ,  C08F297/08 ,  C08L23/12 ,  C08L23/16

CPC分类号： C08F10/06 ,  C08F110/06 ,  C08F210/06

摘要： A polypropylene (PP) having a superior post-processability and blow moldability is provided, which PP is obtained by polymerizing propylene at multiple stages using a catalyst comprising a TiCl.sub.3 composition, an organoaluminum compound and a molecular weight (M.W.) modifier, the resulting final polymer comprising a higher M.W. portion and a lower M.W. portion having a melt flow index of 0.03 to 2.0 g/10 min., and between this index and a melt flow index (10.2 kg/10 minutes, 230.degree. C.) as measured under 5 times the load applied in the measurement of the former melt flow index, there being a relationship log HMI.gtoreq.0.922 log MI+1.44, and the final polymer consisting of 40 to 60 weight % of a PP portion corresponding to the higher M.W. portion and 60 to 40 weight % of a PP portion corresponding to the lower M.W. portion.

摘要翻译： 提供具有优异的后加工性和吹塑成型性的聚丙烯（PP），其通过使用包含TiCl 3组合物，有机铝化合物和分子量（MW）改性剂的催化剂在多个阶段聚合丙烯而获得，所得最终 聚合物，其包含较高MW部分和较低MW部分，其熔体流动指数为0.03至2.0g / 10min，并且在该指数和熔体流动指数（10.2kg / 10分钟，230℃）之间测量， 在前一个熔体流动指数的测量中施加的载荷的5倍，存在关系日志HMI> / = 0.922log MI + 1.44，并且最终聚合物由对应于较高MW的40至60重量％的PP部分组成 部分和对应于较低MW部分的PP部分的60至40重量％。

公开(公告)号：US4760113A

公开(公告)日：1988-07-26

申请号：US942796

申请日：1986-12-17

申请人： Hiromasa Chiba ,  Shunji Kawazoe ,  Takahiro Oka

发明人： Hiromasa Chiba ,  Shunji Kawazoe ,  Takahiro Oka

IPC分类号： C08F210/16 ,  C08F2/00 ,  C08F2/02 ,  C08F2/04 ,  C08F2/06 ,  C08F4/60 ,  C08F4/64 ,  C08F4/642 ,  C08F6/00 ,  C08F6/06 ,  C08F297/08

CPC分类号： C08F297/083

摘要： A continuous polymerization process for producing a high-melt viscoelastic ethylene-propylene copolymer by the use of Ziegler-Natta catalyst, which process make it possible to stably produce an ethylene-propylene block copolymer having superior physical properties suitable to sheet molding and blow molding and capable of producing large-size molded products is provided,which process comprises(a) feeding propylene and ethylene in a weight proportion of ethylene in the total of propylene and ethylene of 0-5% into 3 or more polymerization vessels among 4 or more polymerization vessels connected in series, to carry out continuous polymerization step (i) and successively feeding ethylene and propylene in a weight proportion of ethylene in the total of ethylene and propylene of 10-100% into one or more polymerization vessels, to carry out continuous polymerization process (ii); (b) feeding the total quantity of the catalyst only to the first polymerization vessel; (c) feeding the total quantity of hydrogen substantially only to the first polymerization vessel; and (d) making the quantity of polymer obtained in step (i) 60-95 weight % based on the total polymerization quantity.

摘要翻译： 通过使用齐格勒 - 纳塔催化剂制造高熔点粘弹性乙烯 - 丙烯共聚物的连续聚合方法，该方法使得可以稳定地制备具有适合于片材成型和吹塑成型的优异物理性能的乙烯 - 丙烯嵌段共聚物，以及 提供能够生产大尺寸模制产品的方法，该方法包括（a）在4个或更多个聚合物中将丙烯和乙烯总量为0-5％的乙烯的重量比例的丙烯和乙烯进料到3个或更多个聚合容器中 串联连接的容器，进行连续聚合步骤（i），并将乙烯和丙烯的总重量为10-100％的乙烯和丙烯的重量比连续地供入到一个或多个聚合容器中，以进行连续聚合 方法（ii）; （b）仅向第一聚合容器供给催化剂总量; （c）基本上仅向第一聚合容器供给总量的氢; 和（d）基于总聚合量使步骤（i）中获得的聚合物的量为60-95重量％。

公开(公告)号：US5140062A

公开(公告)日：1992-08-18

申请号：US585692

申请日：1990-09-20

申请人： Hiromasa Chiba ,  Takahiro Oka ,  Shunji Kawazoe

发明人： Hiromasa Chiba ,  Takahiro Oka ,  Shunji Kawazoe

IPC分类号： C08F2/00 ,  C08F10/06 ,  C08F297/08

CPC分类号： C08F297/083 ,  C08F10/06

摘要： Continuous processes for producing high melting and viscoelasting polypropylene or ethylene-propylene copolymer are provided.These processes are characterized by (1) using two or more polymerizers connected in series, (2) supplying the whole amount of a catalyst and a molecular weight regulator (hydrogen) in the first tank and (3) a degasification amount of each tank in the second and subsequent tanks being 0.5 to 10 V.sub.1 /Hr (wherein V.sub.1 is a volume of the tank) calculated at 0.degree. C. and 0 Kg/cm.sup.2 G. In the process for producing the copolymer, (4) monomers having an ethylene content of 5 wt % or less are supplied in the first step. According to the processes of the present invention, polymers having a broad molecular weight distribution and good fluidity upon extrusion molding can be obtained and operational control in production is simply made.

摘要翻译： 提供了用于生产高熔点和粘弹性聚丙烯或乙烯 - 丙烯共聚物的连续方法。 这些方法的特征在于：（1）使用串联连接的两种或更多种聚合反应器，（2）在第一罐中提供全部量的催化剂和分子量调节剂（氢），（3）每个罐中的脱气量 在0℃和0Kg / cm2G下计算的第二和随后的罐是0.5至10V1 / Hr（其中V1是罐的体积）。 在共聚物的制造方法中，在第一工序中，供给（4）乙烯含量为5重量％以下的单体。 根据本发明的方法，可以获得在挤出成型时具有宽分子量分布和良好流动性的聚合物，并且简单地进行生产中的操作控制。

公开(公告)号：US4510292A

公开(公告)日：1985-04-09

申请号：US522013

申请日：1983-08-11

申请人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Satoh

发明人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Satoh

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F297/00 ,  C08F297/08 ,  C08J9/04 ,  C08J9/06 ,  C08L23/10 ,  C08L23/16

CPC分类号： C08F297/083 ,  C08L23/10 ,  C08L2205/02 ,  C08L23/16

摘要： An ethylene-propylene block copolymer capable of producing foamed shaped articles having a structure of uniform and fine foams even without adding any other resins, and a process for producing the same are provided, which copolymer consists of a propylene homopolymer portion and an ethylene-propylene (EP) copolymer portion and is characterized in that .circle.1 the former portion is obtained by polymerizing propylene at two stages so that the portion can further consist of a lower molecular weight portion and a higher molecular portion; .circle.2 between the melt flow rates of the resulting block copolymer under a specified load and five times the load, there is a specified relationship; .circle.3 the EP copolymer portion has an ethylene content of 60 to 95% by weight based on this portion; and .circle.4 the block copolymer has an ethylene content of 10 to 40% by weight based on the copolymer.

摘要翻译： 提供能够生产具有均匀和细小泡沫的结构的发泡成型制品的乙烯 - 丙烯嵌段共聚物，即使不添加任何其它树脂，以及其制备方法，该共聚物由丙烯均聚物部分和乙烯 - 丙烯 （EP）共聚物部分，其特征在于，前一部分通过在两个阶段聚合丙烯获得，使得该部分可以进一步由较低分子量部分和较高分子部分组成; 所得嵌段共聚物在规定负荷下的熔体流动速率与负荷的5倍之间，有一个特定的关系; ＆lt; 3＆gt; EP共聚物部分基于该部分的乙烯含量为60〜95重量％ 和＆lt; c＆lt; 4＆gt;嵌段共聚物的乙烯含量基于共聚物为10〜40重量％。

公开(公告)号：US4499247A

公开(公告)日：1985-02-12

申请号：US501893

申请日：1983-06-07

申请人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Satoh

发明人： Hiromasa Chiba ,  Kenjiro Obama ,  Shunji Kawazoe ,  Takahiro Oka ,  Akihiro Satoh

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F8/00 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06

CPC分类号： C08F10/06 ,  Y10S526/905

摘要： A superior high-rigidity and high-melt-viscoelasticity polypropylene for sheets to be post-processed and for blow molding is provided which polypropylene is produced by subjecting propylene to a multi-stage polymerization into polymer portions of two sections in the presence of a specified Ziegler Natta catalyst, the relationship between the intrinsic viscosities of the polymer portions of the respective sections being regulated within a specified range and also the amount ratio of the polymer portions of the respective sections being regulated.

摘要翻译： 提供了用于后处理和吹塑的片材的优异的高刚性和高熔点粘弹性聚丙烯，其通过在规定的存在下将丙烯进行多段聚合成两段聚合物部分来制备聚丙烯 齐格勒纳塔催化剂，将各部分的聚合物部分的特性粘度之间的关系调节在规定范围内，并且调节各部分的聚合物部分的量比。

公开(公告)号：US4970280A

公开(公告)日：1990-11-13

申请号：US165508

申请日：1988-03-08

申请人： Hiromasa Chiba ,  Takahiro Oka ,  Shunji Kawazoe

发明人： Hiromasa Chiba ,  Takahiro Oka ,  Shunji Kawazoe

IPC分类号： C08F2/00 ,  C08F2/14 ,  C08F10/06 ,  C08F297/08

CPC分类号： C08F10/06 ,  C08F297/083 ,  Y10S526/905

摘要： Continuous processes for producing high melting and viscoelasting polypropylene or ethylene-propylene copolymer are provided.These processes are characterized by (1) using two or more polymerizers connected in series, (2) supplying the whole amount of a catalyst and a molecular weight regulator (hydrogen) in the first tank and (3) a degasification amount of each tank in the second and subsequent tanks being 0.5 to 10 V.sub.1 /Hr (wherein V.sub.1 is a volume of the tank) calculated at 0.degree. C., and 0 Kg/cm.sup.2 G. In the process for producing the copolymer, (4) monomers having an ethylene content of 5 wt % or less are supplied in the first step. According to the processes of the present invention, polymers having a broad molecular weight distribution and good fluidity upon extrusion molding can be obtained and operational control in production is simply made.

公开(公告)号：US4771103A

公开(公告)日：1988-09-13

申请号：US928165

申请日：1986-11-07

申请人： Hiromasa Chiba ,  Takahiro Oka

发明人： Hiromasa Chiba ,  Takahiro Oka

IPC分类号： C08F4/64 ,  C08F4/60 ,  C08F4/80 ,  C08F10/06 ,  C08F210/06 ,  C08F297/08

CPC分类号： C08F297/083 ,  C08F10/06 ,  C08F210/06

摘要： A process for continuously producing a propylene-ethylene block copolymer having well-balanced qualities such as high-impact properties, stiffness, processability, etc., with a good productivity, through two polymerization stages using a stereoregular catalyst comprising a Ti-containing solid catalyst and an organoaluminum compound, is provided, which process is characterized in that at the first stage, propylene is mainly fed into two or more polymerization vessels connected in series, to produce 60 to 95% by weight of the total polymerization quantity, and at the second stage, a specified quantity of a glycol ether is added to the polymerization reaction mixture obtained above and ethylene is fed in a relatively large quantity into one or more polymerization vessels, to produce 5 to 40% by weight of the total polymerization quantity.

摘要翻译： 通过使用包含含Ti固体催化剂的立体规则催化剂的两个聚合阶段连续制备具有良好平衡性质如高冲击性能，刚度，加工性等的良好的生产率的丙烯 - 乙烯嵌段共聚物的方法 和有机铝化合物，其特征在于，在第一阶段，丙烯主要进料到两个或更多个串联连接的聚合容器中，以产生总聚合量的60至95重量％，并且在 第二阶段，向上述获得的聚合反应混合物中加入规定量的乙二醇醚，并将乙烯以相对大量加入到一个或多个聚合容器中，从而产生总聚合量的5-40重量％。