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：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：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：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：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：US4526931A

公开(公告)日：1985-07-02

申请号：US658868

申请日：1984-10-09

申请人： Hiromasa Chiba ,  Takakiyo Harada ,  Katsumi Kumahara ,  Shunji Kawazoe ,  Akihiro Sato

发明人： Hiromasa Chiba ,  Takakiyo Harada ,  Katsumi Kumahara ,  Shunji Kawazoe ,  Akihiro Sato

IPC分类号： C08F4/00 ,  C08F4/42 ,  C08F4/60 ,  C08F4/64 ,  C08F4/80 ,  C08F297/00 ,  C08F297/08

CPC分类号： C08F297/086

摘要： A whitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the same are provided, which copolymer is produced by copolymerizing ethylene with propylene in the presence of a specified stereoregular catalyst and at four stages under specified conditions, the catalyst being prepared by reacting an organoaluminum compound or its reaction product with an electron donor, with TiCl.sub.4, reacting the resulting solid product with an electron donor and an electron acceptor, and combining the resulting solid product with an organo-aluminum compound and an aromatic carboxylic acid ester so as to give a specified ratio, and at the four stages, the ethylene contents in monomers fed, the proportion of polymerization amounts and the intrinsic viscosities of polymers formed being specified.

摘要翻译： 提供了耐白化，高熔体 - 粘弹性的乙烯 - 丙烯共聚物及其制备方法，该共聚物是通过在规定的立构规则催化剂的存在下和乙烯与丙烯共聚制备的，并且在特定条件下分四阶段 通过使有机铝化合物或其反应产物与电子给体反应制备，与TiCl 4反应，使得到的固体产物与电子给体和电子受体反应，并将得到的固体产物与有机铝化合物和芳族羧酸酯 以提供规定的比例，并且在四个阶段中，单体进料中的乙烯含量，聚合量的比例和形成的聚合物的特性粘度被规定。

公开(公告)号：US5854355A

公开(公告)日：1998-12-29

申请号：US929052

申请日：1997-09-15

申请人： Takahiro Oka ,  Shunji Kawazoe ,  Yasuhiro Yamane

发明人： Takahiro Oka ,  Shunji Kawazoe ,  Yasuhiro Yamane

IPC分类号： C08F4/658 ,  C08F4/60 ,  C08F297/08

CPC分类号： C08F297/08 ,  C08F297/083

摘要： A continuous process for preparation of propylene-ethylene block copolymer suitable for moldings with high rigidity and high impact resistance are provided, which process is a continuous process for preparation of highly rigid propylene-ethylene block copolymers, wherein propylene and ethylene are polymerized in the specified 2 steps with use of a catalyst system comprising (A) a solid catalyst component containing Ti, Mg, halogen and polyvalent carboxylic ester, (B) an organic aluminium compound, as well as (C) an organic silicon compound expressed by the general formula R.sup.4.sub.x R.sup.5.sub.y Si(OR.sup.6).sub.z (wherein, x+y+z=4), and wherein the ratio between the maximum value and the minimum value of MFR(l)) is 0.1.ltoreq.Log(MFR(h)/MFR(l)).ltoreq.1, and the ratio between the average MFR(i) and MFR(ii) in the subsequent polymerization procedure (II) containing ethylene in a relatively large amount which is carried out by adding the glycol type compound is 3.ltoreq.Log(MFR(i)/MFR(ii)).ltoreq.7. The product having less fish eye and high impact resistant value was obtained from the copolymer according to the invention.

摘要翻译： 提供了适用于具有高刚性和高抗冲击性的模制品的丙烯 - 乙烯嵌段共聚物的连续制备方法，该方法是用于制备高刚性丙烯 - 乙烯嵌段共聚物的连续方法，其中丙烯和乙烯在指定的 使用包含（A）含有Ti，Mg，卤素和多价羧酸酯的固体催化剂组分的催化剂体系的步骤（B）有机铝化合物，以及（C）由通式 R4xR5ySi（OR6）z（其中，x + y + z = 4），其中MFR（1）的最大值和最小值之间的比率为0.1 Log（MFR（h）/ MFR ））），并且通过加入二醇型化合物进行的含有相对较多量的乙烯的随后的聚合方法（II）中的平均MFR（i）和MFR（ii）之间的比例为3 < / =对数（MFR（i）/ MFR（ii））7。 由本发明的共聚物得到鱼眼少，抗冲击性高的产品。

公开(公告)号：US5672658A

公开(公告)日：1997-09-30

申请号：US516089

申请日：1995-08-17

申请人： Takahiro Oka ,  Shunji Kawazoe ,  Yasuhiro Yamane

发明人： Takahiro Oka ,  Shunji Kawazoe ,  Yasuhiro Yamane

IPC分类号： C08F297/08

CPC分类号： C08F297/083

摘要： A propylene.ethylene block copolymer composition having a high stiffness and high-impact properties and its production process are provided, which composition is produced by using a specified Ziegler-Natta type catalyst; carrying out polymerization step (I) wherein homopolymerization of propylene is carried out by means of two or more polymerization vessels so as to afford 60 to 95% by weight based upon the total weight, and a specified range of the maximum value and the minimum value of the melt flow rates of the polymers obtained in the respective vessels; and carrying out polymerization step (II) wherein propylene-ethylene random copolymerization is carried out by means of one or more polymerization vessels so as to afford 5 to 40% by weight based upon the total quantity, the ratio of the melt flow rate at the polymerization step (I) to the melt flow rate at the polymerization step (II) being made to fall within a specified range, whereby the resulting ethylene.propylene block copolymer composition is far superior in the collective strength to known ethylene.propylene block copolymer compositions.

摘要翻译： 提供具有高刚度和高冲击性能的丙烯 - 亚乙基嵌段共聚物组合物及其制备方法，该组合物通过使用特定的齐格勒 - 纳塔型催化剂制备; 进行聚合步骤（I），其中丙烯的均聚通过两个或更多个聚合容器进行，从而基于总重量提供60至95重量％，以及最大值和最小值的指定范围 在各个容器中获得的聚合物的熔体流动速率; 并进行聚合步骤（II），其中通过一个或多个聚合容器进行丙烯 - 乙烯无规共聚，从而以总量为基准，提供5-40重量％的熔体流动速率 聚合步骤（I）使聚合步骤（II）的熔体流动速率落在规定的范围内，由此得到的乙烯 - 丙烯嵌段共聚物组合物的总强度远远优于已知的乙烯 - 丙烯嵌段共聚物组合物 。

公开(公告)号：US06201069B1

公开(公告)日：2001-03-13

申请号：US09297323

申请日：1999-04-29

申请人： Tooru Fukazawa ,  Yozo Shimomura ,  Shunji Kawazoe

发明人： Tooru Fukazawa ,  Yozo Shimomura ,  Shunji Kawazoe

IPC分类号： C08F800

CPC分类号： C08L23/12 ,  C08F297/086 ,  C08L23/04 ,  C08L23/10 ,  C08L23/16 ,  C08L53/00 ,  C08L2666/04

摘要： An object of this invention is to provide a polypropylene/propylene-ethylene copolymer composition having an excellent balance among rigidity, toughness, impact resistance, etc. This invention provides a polypropylene/propylene-ethylene copolymer composition having a melt flow rate of from 1 to 80 g/10 min obtained by producing a specific propylene polymer in an amount of from 60 to 95% by weight based on the total amount of the composition to be finally obtained and subsequently producing in a second stage (polymerization step (II)) a specific propylene-ethylene copolymer in an amount of from 5 to 40% by weight based on the total amount of the composition to be finally obtained. A process for producing the composition is also provided.

摘要翻译： 本发明的目的是提供一种在刚性，韧性，耐冲击性等方面具有优异平衡性的聚丙烯/丙烯 - 乙烯共聚物组合物。本发明提供一种聚丙烯/丙烯 - 乙烯共聚物组合物，其熔体流动速率为1〜 相对于最终得到的组合物的总量，随后在第二阶段（聚合步骤（II））中生产，通过制备60至95重量％的特定丙烯聚合物得到80g / 10分钟 相对于最终获得的组合物的总量，5-40重量％的丙烯 - 乙烯共聚物。 还提供了制备该组合物的方法。