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    .alpha.-olefin polymers, .alpha.-olefin-polymerizing catalyst and process for producing .alpha.-olefin polymers
    21.
    发明授权
    .alpha.-olefin polymers, .alpha.-olefin-polymerizing catalyst and process for producing .alpha.-olefin polymers 失效
    α-烯烃聚合物，α-烯烃聚合催化剂和生产α-烯烃聚合物的方法

    公开(公告)号：US6103841A

    公开(公告)日：2000-08-15

    申请号：US841646

    申请日：1997-04-30

    申请人： Takeshi Ebara ,  Koji Mizunuma ,  Toshio Sasaki ,  Kazuki Wakamatsu ,  Junichi Kimura ,  Yoichi Obata

    发明人： Takeshi Ebara ,  Koji Mizunuma ,  Toshio Sasaki ,  Kazuki Wakamatsu ,  Junichi Kimura ,  Yoichi Obata

    IPC分类号： C08F4/58 ,  C08F4/645 ,  C08F4/658 ,  C08F10/00 ,  C08F110/06

    CPC分类号： C08F110/06 ,  C08F10/00

    摘要： An .alpha.-olefin polymer well balanced between stiffness, stickiness, processability, etc., which intrinsic viscosity [.eta.] is in the range of from 0.5 to 10 and which 20.degree. C. xylene-soluble fraction (CXS) content (% by weight) and 105.degree. C. xylene-insoluble fraction (XIS) content (% by weight) satisfy a condition of XIS.ltoreq.70.00-3.64CXS, provided that CXS is not smaller than 0 and not greater than 15; a specified .alpha.-olefin polymerizing catalyst for producing the polymer; a process for producing the polymer using the specified .alpha.-olefin polymerizing catalyst; a polypropylene for use in the production of a biaxially oriented film excellent in stretchability and satisfying the conditions (1)-(3) mentioned below; and a biaxially oriented film excellent in stiffness and dimensional stability obtained by stretching the polypropylene:(1) the content of 20.degree. C. xylene-soluble fraction (CXS) is 3.5% by weight or less,(2) the content of 20.degree. C. xylene-soluble fraction (CXS, % by weight) and the content of 105.degree. C. xylene-insoluble fraction (XIS, % by weight) satisfy the following condition:XIS.ltoreq.70.00-3.64CXS,and(3) melt flow rate (MFR) at 230.degree. C. is from 0.5 to 10.0 g/10 minutes.

    摘要翻译： 一种在硬度，粘性，加工性等方面均衡的α-烯烃聚合物，其特性粘度η在0.5至10的范围内，20℃的二甲苯可溶级分（CXS）含量（重量％ ）和105℃，二甲苯不溶级分（XIS）含量（重量％）满足XIS≤70.00-3.64CXS的条件，条件是CXS不小于0且不大于15; 用于制备聚合物的特定的α-烯烃聚合催化剂; 使用特定的α-烯烃聚合催化剂制备聚合物的方法; 用于制造拉伸性优异且满足下述条件（1） - （3）的双轴取向膜的聚丙烯; 和通过拉伸聚丙烯获得的刚性和尺寸稳定性优异的双轴取向膜：（1）20℃二甲苯可溶级分（CXS）的含量为3.5重量％以下，（2）20℃的含量 C.二甲苯可溶级分（CXS，重量％）和105℃二甲苯不溶级分（XIS，重量％）的含量满足下列条件：XIS = 70.00-3.64CXS，（3） 230℃下的熔体流动速率（MFR）为0.5〜10.0g / 10分钟。

    Process for producing ethylene-propylene block copolymer
    22.
    发明授权
    Process for producing ethylene-propylene block copolymer 失效
    生产乙烯 - 丙烯嵌段共聚物的方法

    公开(公告)号：US5449738A

    公开(公告)日：1995-09-12

    申请号：US907017

    申请日：1992-07-01

    申请人： Hiroyuki Koura ,  Takeshi Ebara ,  Kazuki Wakamatsu ,  Shouzou Kawamata ,  Yoshizumi Sasaki

    发明人： Hiroyuki Koura ,  Takeshi Ebara ,  Kazuki Wakamatsu ,  Shouzou Kawamata ,  Yoshizumi Sasaki

    IPC分类号： C08F2/34 ,  C08F4/60 ,  C08F4/658 ,  C08F297/08

    CPC分类号： C08F297/083

    摘要： The present invention relates to a process for producing ethylene propylene block copolymers excellent in appearance, elongation and impact resistance when molded by a gas phase polymerization which can be conducted in a stable manner.The process of the present invention comprises the first step of polymerizing propylene by using a catalyst system composed essentially of(A) a solid catalyst component containing magnesium, titanium, and a halogen as the indispensable ingredients,(B) an organoaluminum compound, and(C) a silicon compound represented by the formula R.sup.1 R.sup.2 Si(OR.sup.3).sub.2, wherein R.sup.1 is an alicyclic hydrocarbon group and R.sup.2 and R.sup.3 are each a hydrocarbon group, to form a propylene homopolymer, and the second step of then polymerizing ethylene and propylene with further addition of a silicon compound represented by the formula R.sup.4 R.sup.5.sub.a Si(OR.sup.6).sub.3-a, wherein R.sup.4 is an aromatic hydrocarbon group, R.sup.5 is a hydrocarbon group or an aromatic hydrocarbon group, and a is a number satisfying the equation 0.ltoreq.a

    摘要翻译： 本发明涉及一种生产乙烯丙烯嵌段共聚物的方法，该共聚物通过可以以稳定的方式进行的气相聚合成型而具有优异的外观，伸长率和耐冲击性。 本发明的方法包括通过使用主要由（A）含有镁，钛和卤素的固体催化剂组分作为不可或缺的成分组成的催化剂体系聚合丙烯的第一步骤，（B）有机铝化合物和（ C）由式R 1 R 2 Si（OR 3）2表示的硅化合物，其中R 1是脂环族烃基，R 2和R 3各自是烃基，以形成丙烯均聚物，然后第二步再进一步聚合乙烯和丙烯 添加由式R 4 R 5 a Si（OR 6）3-a表示的硅化合物，其中R 4是芳族烃基，R 5是烃基或芳族烃基，a是满足式0的数< 3，形成乙烯 - 丙烯共聚物。

    Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin
    23.
    发明授权
    Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin 失效
    用于烯烃的连续聚合的装置，用于转移聚合物粉末的方法，以及烯烃的连续聚合方法

    公开(公告)号：US07465772B2

    公开(公告)日：2008-12-16

    申请号：US11180725

    申请日：2005-07-14

    申请人： Kazuyuki Takemura ,  Yoichi Konno ,  Kazuki Wakamatsu

    发明人： Kazuyuki Takemura ,  Yoichi Konno ,  Kazuki Wakamatsu

    IPC分类号： C08F2/34 ,  B01J19/24 ,  F26B17/10

    CPC分类号： B01J8/003 ,  B01J8/1809 ,  B01J8/1872 ,  B01J2208/00619 ,  B01J2208/00752 ,  B01J2208/00761 ,  B01J2219/00033 ,  B01J2219/0004 ,  C08F10/00 ,  C08F110/02 ,  Y10S526/92 ,  C08F2/01

    摘要： An apparatus and method for continuous polymerization of olefin(s), and a method for transferring a polymer powder from one reactor to another in the apparatus are disclosed. The apparatus includes a plurality of serially disposed gas-phase polymerization reactors including a combination of an upstream and downstream reactors and a gas exchange vessel disposed between both reactors. The gas exchange vessel is connected to the upstream and downstream reactors by a first and second transfer conduits, respectively. The gas exchange vessel has a gas distributor plate therein which partitions the gas exchange vessel into an upper section having a gas exchange chamber and a lower section. In the gas exchange chamber, the gas transferred from the upstream reactor together with a polymer powder is exchange at least partly with fresh gas introduced through the gas distributor plate via the lower section. The polymer powder is then transferred to the downstream reactor.

    摘要翻译： 公开了一种用于连续聚合烯烃的装置和方法，以及用于在装置中将聚合物粉末从一个反应器转移到另一反应器的方法。 该装置包括多个串联设置的气相聚合反应器，包括上游和下游反应器的组合以及设置在两个反应器之间的气体交换容器。 气体交换容器分别通过第一和第二输送管道连接到上游和下游反应器。 气体交换容器在其中具有气体分配板，其将气体交换容器分隔成具有气体交换室和下部的上部。 在气体交换室中，从上游反应器与聚合物粉末一起转移的气体至少部分地通过下部通过气体分布板引入的新鲜气体进行交换。 然后将聚合物粉末转移到下游反应器。

    Stretched polypropylene film
    24.
    发明授权
    Stretched polypropylene film 有权
    拉伸聚丙烯薄膜

    公开(公告)号：US06835791B2

    公开(公告)日：2004-12-28

    申请号：US10314132

    申请日：2002-12-09

    申请人： Takeshi Ebara ,  Kazuki Wakamatsu

    发明人： Takeshi Ebara ,  Kazuki Wakamatsu

    IPC分类号： C08F21006

    CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/143 ,  B29K2023/12 ,  C08J2323/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/06

    摘要： Disclosed is a stretched film excellent in low-temperature heat sealability after corona treatment as well as that before corona treatment and/or in heat shrinkability, the stretched film being comprised of a layer comprising a copolymer of propylene with &agr;-olefin and/or ethylene such that in measurement of a DSC curve the amount of the heat absorbed in the temperature range of from T−10 (° C.) to T+10 (° C.) accounts for from 15 to 36% of the amount of the heat absorbed in the temperature range of from 53 to 170° C., wherein T denotes a temperature (° C.) at which a maximum endothermic peak appears in the DSC curve.

    摘要翻译： 公开了一种在电晕处理后以及在电晕处理和/或热收缩之前的低温热封性优异的拉伸膜，拉伸膜由包含丙烯与α-烯烃和/或乙烯的共聚物的层组成 使得在DSC曲线的测量中，在T-10（℃）至T + 10（℃）的温度范围内吸收的热量占热量的15至36％ 在53至170℃的温度范围内吸收，其中T表示在DSC曲线中出现最大吸热峰的温度（℃）。

    Polypropylene-based resin composition, process for producing the same and injection molded article
    25.
    发明授权
    Polypropylene-based resin composition, process for producing the same and injection molded article 有权
    聚丙烯系树脂组合物及其制造方法以及注射成型品

    公开(公告)号：US06777497B2

    公开(公告)日：2004-08-17

    申请号：US10087810

    申请日：2002-03-05

    申请人： Susumu Kanzaki ,  Mitsuji Tsuji ,  Kazuki Wakamatsu

    发明人： Susumu Kanzaki ,  Mitsuji Tsuji ,  Kazuki Wakamatsu

    IPC分类号： C08L2300

    CPC分类号： C08L23/10 ,  C08L53/00 ,  C08L2205/02 ,  C08L2310/00 ,  C08L2666/04

    摘要： A polypropylene-based resin composition comprising 0.5 to 10% by weight of a propylene-based polymer component (A1) obtained by polymerizing a monomer mainly composed of propylene, having an intrinsic viscosity [&eegr;]A1 measured in tetralin at 135° C. of 5 dl/g or more and a melting peak temperature TmA1 measured by a differential scanning calorimeter of 130 to 160° C., 90 to 99.5% by weight of a propylene-based polymer component (A2) obtained by polymerizing a monomer mainly composed of propylene, intrinsic viscosity [&eegr;]2 measured in tetralin at 135° C. of less than 5 dl/g.

    摘要翻译： 一种聚丙烯系树脂组合物，其含有0.5〜10重量％的丙烯类聚合物成分（A1），该丙烯类聚合物成分（A1）通过聚合主要由丙烯构成的单体，在135℃下在四氢化萘中测定的特性粘度η

    Prepolymerization catalyst for use in gas phase polymerization of olefins and process for producing the same
    26.
    发明授权
    Prepolymerization catalyst for use in gas phase polymerization of olefins and process for producing the same 有权
    用于烯烃气相聚合的预聚合催化剂及其制备方法

    公开(公告)号：US06645901B2

    公开(公告)日：2003-11-11

    申请号：US09820977

    申请日：2001-03-30

    申请人： Tomoaki Goto ,  Kazuki Wakamatsu ,  Shinichi Kumamoto

    发明人： Tomoaki Goto ,  Kazuki Wakamatsu ,  Shinichi Kumamoto

    IPC分类号： B01J3100

    CPC分类号： C08F10/00 ,  C08F210/16 ,  Y10S526/901 ,  Y10S526/908 ,  Y10S526/909 ,  C08F4/6565 ,  C08F4/6492 ,  C08F210/08 ,  C08F2500/18 ,  C08F2500/12 ,  C08F2500/17

    摘要： A prepolymerization catalyst for use in a gas phase polymerization of an olefin or combinations of olefins which comprises (A) a solid catalyst component comprising magnesium, halogen, titanium and an electron donor and having a weight-average particle diameter of 15 to 45 &mgr;m, (B) at least one organoaluminum compound and (C) a prepolymer of an ethylene and/or at least one &agr;-olefin, wherein the molar ratio of aluminum to titanium in the prepolymerization catalyst (Al/Ti ratio) is 3 to 11 (mol/mol), the weight ratio of the prepolymerization catalyst to the solid catalyst component (prepolymerization catalyst/solid catalyst component) is 2 to 35 (g/g), the content of volatile materials (VM) in the prepolymerization catalyst is 2.0% by weight or less, and the intrinsic viscosity [&eegr;] measured in tetralin at 135° C. is 2.0 dl/g or less, and a process for a production thereof. According to the present invention, a prepolymerization catalyst for gas phase polymerization of olefins showing a high activity in gas phase polymerization, not forming aggregates and coarse particles markedly at the time of prepolymerization, having a high bulk density and an excellent fluidity, not causing a marked entraining of prepolymerization catalyst and product powder out of the fluidized bed and nearly completely free from a formation of aggregates, at the time of gas phase polymerization, and giving an olefin polymer having a low content of cold xylene-soluble fraction can be provided.

    摘要翻译： 一种用于烯烃或烯烃组合的气相聚合的预聚合催化剂，其包含（A）包含镁，卤素，钛和电子给体的固体催化剂组分，其重均粒径为15至45μm， （B）至少一种有机铝化合物和（C）乙烯和/或至少一种α-烯烃的预聚物，其中预聚合催化剂中铝与钛的摩尔比（Al / Ti比）为3-11（ mol / mol），预聚合催化剂与固体催化剂组分（预聚合催化剂/固体催化剂组分）的重量比为2〜35（g / g），预聚合催化剂中挥发物（VM）的含量为2.0％ 以下，在135℃下在四氢化萘中测定的特性粘度η为2.0dl / g以下，以及其制造方法。根据本发明，提供了一种气相聚合用预聚合催化剂 烯烃聚合物 在气相聚合中具有高活性，在预聚合时不显着形成聚集体和粗颗粒，具有高堆积密度和优异的流动性，不会引起预聚合催化剂和产物粉末明显夹带在流化床之外，几乎 在气相聚合时完全没有聚集体的形成，并且可以提供具有低二甲苯可溶成分含量低的烯烃聚合物。