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67 条记录 (耗时 0.029 秒)

    Process for the production of polyethylene
    31.
    发明授权
    Process for the production of polyethylene 失效
    聚乙烯生产工艺

    公开(公告)号：US5288933A

    公开(公告)日：1994-02-22

    申请号：US868860

    申请日：1992-04-16

    申请人： Sun-Chueh Kao ,  Frederick J. Karol

    发明人： Sun-Chueh Kao ,  Frederick J. Karol

    IPC分类号： C08F4/655 ,  C08F10/02 ,  C07C2/36

    CPC分类号： C08F10/02

    摘要： A process for the polymerization of ethylene or a mixture comprising ethylene and one or more alpha-olefins and, optionally, a diene, comprising passing, under polymerization conditions, the aforementioned monomer(s) into contact with a catalyst system comprising:(a) the reaction product of(i) a titanium based catalyst precursor having the formula Mg.sub.a Ti(OR).sub.b X.sub.c (ED).sub.d whereinED is an inside electron donor comprising a mixture of (A) about 1 to about 80 mole percent of an alkyl, alkoxy, aryl, or aryloxy phosphine oxide, or mixtures thereof, and (B) about 20 to about 99 mole percent of an organic ester, ether, or ketone, or mixtures thereof, said phosphine oxide also being present in a molar ratio of phosphine oxide to titanium of 0.1:1 to 8:1;R is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms of COR' wherein R' is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms;each OR group is the same or different;each X is independently chlorine, bromine, or iodine;wherein component (a) is impregnated into an inorganic support; and(b) a hydrocarbyl aluminum cocatalyst.

    摘要翻译： 一种乙烯聚合方法或包含乙烯和一种或多种α-烯烃和任选的二烯的混合物的方法，包括在聚合条件下使上述单体与催化剂体系接触，所述催化剂体系包含：（a） （i）具有式MgaTi（OR）bXc（ED）d的钛基催化剂前体的反应产物，其中ED是内电子供体，其包含（A）约1至约80摩尔％的烷基，烷氧基 ，芳基或芳氧基氧化膦或其混合物，和（B）约20至约99摩尔％的有机酯，醚或酮或其混合物，所述氧化膦也以氧化膦的摩尔比存在 至0.1：1至8：1的钛; R是具有1至14个碳原子的COR'的脂族或芳族烃基，其中R'是具有1至14个碳原子的脂族或芳族烃基; 每个OR组相同或不同; 每个X独立地是氯，溴或碘; 其中组分（a）被浸渍到无机载体中; 和（b）烃基铝助催化剂。

    Bimetallic catalyst, method of polymerization and bimodal polyolefins therefrom
    35.
    发明授权
    Bimetallic catalyst, method of polymerization and bimodal polyolefins therefrom 失效
    双金属催化剂，聚合方法和双峰聚烯烃

    公开(公告)号：US08557935B2

    公开(公告)日：2013-10-15

    申请号：US13495744

    申请日：2012-06-13

    申请人： Sun-Chueh Kao ,  Michael D. Awe

    发明人： Sun-Chueh Kao ,  Michael D. Awe

    IPC分类号： C08F4/654 ,  C08F4/655 ,  C08F4/6592 ,  C08L23/08

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/65916 ,  C08F4/65925 ,  C08F110/02 ,  C08F4/65904 ,  C08F4/6555 ,  C08F2500/05 ,  C08F2500/07

    摘要： Bimetallic catalysts, methods of producing bimetallic catalysts comprising a modified Ziegler-Natta catalyst and a metallocene, and methods of olefin polymerization using such catalysts are provided. The method of producing the bimetallic catalyst may include combining (a) a Ziegler-Natta catalyst comprising a Group 4, 5 or 6 metal halide and/or oxide, optionally including a magnesium compound, with (b) a modifier compound (“modifier”), wherein the modifier compound is a Group 13 alkyl compound, to form a modified Ziegler-Natta catalyst. The modified Ziegler-Natta catalyst is preferably non-activated, that is, it is unreactive towards olefin polymerization alone. The molar ratio of the Group 13 metal (of the modifier) to the Group 4, 5 or 6 metal halide and/or oxide may be less than 10:1. The bimetallic catalysts are useful in producing bimodal polymers, particularly bimodal polyethylene, having a Polydispersity (Mw/Mn) of from 12 to 50, which may be used in pipes and films.

    摘要翻译： 提供双金属催化剂，制备包含改性齐格勒 - 纳塔催化剂和茂金属的双金属催化剂的方法，以及使用这种催化剂的烯烃聚合方法。 制备双金属催化剂的方法可以包括将（a）包含任选包含镁化合物的第4,5或6族金属卤化物和/或氧化物的齐格勒 - 纳塔催化剂与（b）改性剂化合物（“改性剂” ），其中改性剂化合物是13族烷基化合物，以形成改性的齐格勒 - 纳塔催化剂。 改性的齐格勒 - 纳塔催化剂优选是非活化的，即单独对烯烃聚合是不反应的。 第13族金属（改性剂）与第4,5或6族金属卤化物和/或氧化物的摩尔比可以小于10:1。 双金属催化剂可用于生产双峰聚合物，特别是双峰聚乙烯，其具有12至50的多分散性（Mw / Mn），其可用于管道和膜中。

    Method for preparing a catalyst system and its use in a polymerization process
    40.
    发明授权
    Method for preparing a catalyst system and its use in a polymerization process 失效
    制备催化剂体系的方法及其在聚合过程中的应用

    公开(公告)号：US07220804B1

    公开(公告)日：2007-05-22

    申请号：US09687734

    申请日：2000-10-13

    申请人： Sun-Chueh Kao

    发明人： Sun-Chueh Kao

    IPC分类号： C08F4/44

    CPC分类号： C08F10/00 ,  C08F4/65904 ,  C08F4/65912 ,  C08F110/02 ,  Y10S526/902 ,  Y10S526/943 ,  C08F4/65916 ,  C08F2500/12

    摘要： The present invention relates to a supported catalyst composition and a method for making the supported catalyst composition and its use in a process for polymerizing olefin(s). In particular, the invention is directed to a method for making a supported catalyst composition by contacting a supported activator with a bulky ligand and a metal compound.

    摘要翻译： 负载型催化剂组合物及其制备方法技术领域本发明涉及负载型催化剂组合物及其制造方法及其在烯烃聚合方法中的应用。 特别地，本发明涉及通过使负载的活化剂与大体积配体和金属化合物接触来制备负载型催化剂组合物的方法。