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    Use and production of polypropylene
    82.
    发明申请
    Use and production of polypropylene 失效

    公开(公告)号：US20020120080A1

    公开(公告)日：2002-08-29

    申请号：US09939097

    申请日：2001-08-24

    Applicant: ATOFINA Research, S.A.

    Inventor： Axel Demain

    IPC: C08F004/44

    CPC classification number: C08F110/06 ,  C08F4/65912 ,  C08F4/65927 ,  Y10S526/943 ,  C08F2500/15 ,  C08F2500/12

    Abstract: Use of isotactic polypropylene homopolymers or copolymers in processes in which the polypropylene solidifies from a melt, wherein for enhanced speed of solidification of the polypropylene the polypropylene has a melt temperature and a crystallization temperature not more than 50null less than the melt temperature resulting from the polypropylene having been produced using a metallocene catalyst component having the general formula:Rnull(C pR1R2R3)(CpnullRnnull)MQ2nullnull(I)wherein Cp is a substituted cyclopentadienyl ring; Cpnull is a substituted or unsubstituted fluorenyl ring; Rnull is a structural bridge imparting stereorigidity to the component; R1 is a substituent on the cyclopentadienyl ring which is distal to the bridge, which distal substituent comprises a bulky group of the formula XR*a in which X is chosen from Group IVA, and when anull3 each R* is the same or different and chosen from hydrogen or hydrocarbyl of from 1 to 20 carbon atoms, or when anull2 one R* is chosen from hydrogen or hydrocarbyl of from 1 to 20 carbon atoms and the other different R* is chosen from a substituted or unsubstituted cycloalkyl where X is a carbon atom in the cycloalkyl ring, R2 is a substituent on the cyclopentadienyl ring which is proximal to the bridge and positioned non-vicinal to the distal substituent and is hydrogen or of the formula YRnull3 in which Y is chosen from Group IVA, and each Rnull is the same or different and chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, R3 is a substituent on the cyclopentadienyl ring which is proximal to the bridge and is a hydrogen atom or is of the formula ZR$3 in which Z is chosen from Group IVA, and each R$ is the same or different and chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, each Rnulln is the same or different and is hydrocarbyl having 1 to 20 carbon atoms in which Onullnnull8; M is a Group IVB transition metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or is a halogen.

    Method of homo- or co-polymerization of alpha-olefin
    83.
    发明申请
    Method of homo- or co-polymerization of alpha-olefin 失效
    α-烯烃的均聚或共聚方法

    公开(公告)号：US20020120079A1

    公开(公告)日：2002-08-29

    申请号：US09871253

    申请日：2001-05-30

    Inventor： Ki-Su Ro ,  Il-Seop Kim ,  Chun-Byung Yang ,  Moon-Young Shin

    IPC: C08F004/44

    CPC classification number: C08F10/00 ,  C08F110/06 ,  C08F4/6465 ,  C08F4/651 ,  C08F4/6567 ,  C08F2500/15 ,  C08F2500/12

    Abstract: The present invention relates to a method of homo- or co-polymerization of null-olefin by means of using a catalyst system which comprises the following components: (1) a solid complex titanium catalyst produced by means of a production method comprising the following steps: (a) preparing a magnesium compound solution by dissolving a magnesium halide compound and a compound of Group IIIA of the Periodical Table in a solvent of mixture of cyclic ester, one or more types of alcohol, a phosphorus compound, and an organic silane; (b) precipitating the solid particles by reacting said magnesium compound solution with a transitional metal compound, a silicon compound, a tin compound, or the mixture thereof, and (c) reacting said precipitated solid particles with a titanium compound and electron donors; (2) an organometallic compound of metal of Group IIIA of the Periodical Table; and (3) external electron donors comprising three or more types of organo-silicon compounds, wherein the melt flow rates of the homopolymers obtained from polymerization by individually using said organo-silicon compounds under the same polymerization conditions are 5 or less. 5null20, and 20 or higher, respectively. According to the present invention, it has an advantage of obtaining polymers of broad molecular weight distribution with high hydrogen reactivity and melt flow rates while maintaining high stereoregularity and yields for olefin homo- or co-polymers during homo- or co-polymerization of null olefin having three or more carbon atoms.

    Abstract translation: 本发明涉及通过使用包含以下组分的催化剂体系来均相或共聚α-烯烃的方法：（1）通过包括以下步骤的制备方法生产的固体复合钛催化剂 （a）通过将卤化镁化合物和周期表IIIA族化合物溶解在环酯，一种或多种醇，磷化合物和有机硅烷的混合物的溶剂中来制备镁化合物溶液; （b）通过使所述镁化合物溶液与过渡金属化合物，硅化合物，锡化合物或其混合物反应来沉淀固体颗粒，和（c）使所述沉淀的固体颗粒与钛化合物和电子给体反应; （2）周期表IIIA族金属的有机金属化合物; 和（3）包含三种或更多种有机硅化合物的外部电子给体，其中在相同聚合条件下通过单独使用所述有机硅化合物由聚合获得的均聚物的熔体流动速率为5以下。 分别为5〜20和20以上。 根据本发明，具有获得具有高氢反应性和熔体流动速率的宽分子量分布的聚合物的优点，同时保持高的立构规整性和在α-烯烃的均聚或共聚期间烯烃均聚物或共聚物的产率 具有三个或更多个碳原子。

    Catalyst composition for the polymerization of olefins
    86.
    发明申请
    Catalyst composition for the polymerization of olefins 审中-公开
    用于烯烃聚合的催化剂组合物

    公开(公告)号：US20020103315A1

    公开(公告)日：2002-08-01

    申请号：US10040686

    申请日：2001-11-07

    Inventor： Thomas H. Peterson

    IPC: C08F004/44

    CPC classification number: C07F17/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/10

    Abstract: A catalyst composition for the polymerization of olefins is provided. The catalyst composition comprises a monocycloalkadienyl/metal/ligand catalyst precursor, wherein at least one ligand is capable of multihapto attachment to the metal atom through a carbon or hydrogen atom, and a cocatalyst capable of irreversibly abstracting a ligand from the catalyst precursor.

    Abstract translation: 提供了用于烯烃聚合的催化剂组合物。 催化剂组合物包含单环烷二烯基/金属/配体催化剂前体，其中至少一种配体能够通过碳或氢原子多偶连接于金属原子，以及能够从催化剂前体不可逆地提取配体的助催化剂。

    Asymmetric silicon-bridged metallocenes useful as catalysts in the polymerization of alpha-olefins, process for their preparation and use of said metallocenes for the polymerization of alpha-olefins
    87.
    发明申请
    Asymmetric silicon-bridged metallocenes useful as catalysts in the polymerization of alpha-olefins, process for their preparation and use of said metallocenes for the polymerization of alpha-olefins 失效
    可用作α-烯烃聚合中催化剂的不对称硅桥接金属茂，其制备方法和所述茂金属用于α-烯烃聚合的方法

    公开(公告)号：US20020103312A1

    公开(公告)日：2002-08-01

    申请号：US09729099

    申请日：2000-12-05

    Inventor： Marvun D. Rausch ,  Emma J. Thomas ,  Serge Bettonville

    IPC: C08F004/44

    CPC classification number: C07F17/00 ,  Y10S526/943

    Abstract: Novel asymmetric silicon-bridged metallocenes useful as catalysts in the polymerization of olefins and process for preparing said metallocenes. The novel metallocenes are represented by the general formula (I): (SiRnullRnull)(Cp)(Cpnull)MXXnullnullnull(I) wherein Cp is a partially or fully hydrogenated fluorenyl moiety selected from those of formula (II) and (III) 1 Cpnull is an indenyl group selected from those of formula (IV) 2 M represents a transition metal selected from Ti, Zr and Hf, X and Xnull represent, same or different from each other, a halogen atom, R1,R2 and R3 are, same or different from each other, an alkyl group containing 1 or 2 carbon atoms, an aryl group containing from 6 to 10 carbon atoms or a hydrogen atom, (SiRnullRnull) is a divalent group which bridges the two groups Cp and Cp null repectively on position 9 and 1, Rnull and Rnull are, same or different from each other, an alkyl or aryl group containing from 1 to 10 carbon atoms. Process for producing said metallocenes and process for the polymerization of null-olefins such as ethylene and propylene by means of said metallocenes.

    Abstract translation: 用作烯烃聚合中的催化剂的新型不对称硅桥连金属茂和制备所述金属茂的方法。 新颖的茂金属由通式（I）表示：（SiR'R“）（Cp）（Cp'）MXX'（I）

    Polymerization of olefins
    90.
    发明申请
    Polymerization of olefins 失效
    烯烃聚合

    公开(公告)号：US20020082366A1

    公开(公告)日：2002-06-27

    申请号：US10085251

    申请日：2002-02-27

    Inventor： Lynda Kaye Johnson ,  Joel David Citron

    IPC: C08F004/44

    CPC classification number: C08F10/00 ,  C08F2410/03 ,  C08F4/7022 ,  C08F4/7004 ,  C08F4/7021 ,  C08F4/7019 ,  C08F4/7034 ,  C08F4/7026 ,  C08F4/7029

    Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, one of which contains nickel complexed to selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other gala factors, and are useful as molding resins and for films.

    Abstract translation: 不同聚烯烃的混合物可以通过使用两种或更多种含过渡金属的活性聚合催化​​剂体系的一种或多种可聚合烯烃的直接，优选同时聚合来制备，其中一种含有与选定配位体络合的镍。 聚烯烃产品可以具有在分子量，分子量分布，结晶度或其它期限因素上变化的聚合物，并且可用作模制树脂和薄膜。

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