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    Process for the (Co) Polymerization of Ethylene
    1.
    发明申请
    Process for the (Co) Polymerization of Ethylene 有权
    乙烯（Co）聚合方法

    公开(公告)号：US20070282083A1

    公开(公告)日：2007-12-06

    申请号：US10581983

    申请日：2004-11-24

    申请人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim Pater

    发明人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim Pater

    IPC分类号： C08F10/02 ,  C08F2/00 ,  C08F2/34 ,  C08F4/654

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F4/6494 ,  C08F4/651 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/07 ,  C08F210/08

    摘要： A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which: in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2═CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).

    摘要翻译： 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法，包括（i）包含Mg，Ti，卤素和任选的内电子给体化合物的固体催化剂组分，和（ii）Al-烷基助催化剂 所述方法包括至少两个聚合步骤（a）和（b）），其中：在第一步（a）中，在分子量调节剂存在下使乙烯聚合以产生乙烯（共）聚合物，和 在另外的步骤（b）中，其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物的存在下进行，乙烯与式CH 2 -CHR的α-烯烃共聚，其中R是C1 -C 20烃基，得到分子量高于步骤（b）中制备的共聚物的乙烯共聚物。

    Process for the (co)polymerization of ethylene
    2.
    发明授权
    Process for the (co)polymerization of ethylene 有权
    乙烯（共）聚合的方法

    公开(公告)号：US07678867B2

    公开(公告)日：2010-03-16

    申请号：US10581983

    申请日：2004-11-24

    申请人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim T. M. Pater

    发明人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim T. M. Pater

    IPC分类号： C08F4/64 ,  C08F4/642 ,  C08F4/649 ,  C08F210/02

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F4/6494 ,  C08F4/651 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/07 ,  C08F210/08

    摘要： A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which: in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2═CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).

    摘要翻译： 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法，包括（i）包含Mg，Ti，卤素和任选的内电子给体化合物的固体催化剂组分，和（ii）Al-烷基助催化剂 所述方法包括至少两个聚合步骤（a）和（b）），其中：在第一步（a）中，在分子量调节剂存在下使乙烯聚合以产生乙烯（共）聚合物，和 在另外的步骤（b）中，其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物的存在下进行，乙烯与式CH2 = CHR的α-烯烃共聚，其中R是C1 -C 20烃基，得到分子量高于步骤（b）中制备的共聚物的乙烯共聚物。

    Process and apparatus for the polymerization of ethylene
    6.
    发明申请
    Process and apparatus for the polymerization of ethylene 有权
    用于乙烯聚合的方法和装置

    公开(公告)号：US20070093621A1

    公开(公告)日：2007-04-26

    申请号：US10568739

    申请日：2004-07-19

    申请人： Gerben Meier ,  Massimo Covezzi ,  Pietro Baita ,  Gabriele Mei

    发明人： Gerben Meier ,  Massimo Covezzi ,  Pietro Baita ,  Gabriele Mei

    IPC分类号： C08G85/00

    CPC分类号： B01J8/0055 ,  B01J8/1854 ,  B01J8/24 ,  B01J19/2435 ,  B01J2208/00619 ,  B01J2219/00006 ,  B01J2219/0004 ,  B01J2219/00184 ,  C08F210/16 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  Y10S526/905 ,  C08F2/34 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/17 ,  C08F210/08

    摘要： Process for preparing a broad molecular weight polyethylene by polymerizing ethylene in the presence of a polymerization catalyst, the process comprising the following steps, in any mutual order: a) polymerizing ethylene, optionally together with one or more α-olefinic comonomers having from 3 to 12 carbon atoms, in a gas-phase reactor in the presence of hydrogen, b) copolymerizing ethylene with one or more α-olefinic comonomers having from 3 to 12 carbon atoms in another gas-phase reactor in the presence of an amount of hydrogen less than step a), where in at least one of said gas-phase reactors the growing polymer particles flow upward through a first polymerization zone under fast fluidization or transport conditions, leave said first polymerization zone and enter a second polymerization zone through which they flow downward under the action of gravity.

    摘要翻译： 通过在聚合催化剂存在下聚合乙烯来制备宽分子量聚乙烯的方法，该方法包括以下步骤：a）聚合乙烯，任选地与一种或多种α-烯烃共聚单体一起聚合，所述α-烯烃共聚单体具有3〜 12个碳原子，在氢气存在下的气相反应器中，b）在另一种气相反应器中在一定量的氢气存在下使乙烯与一种或多种具有3至12个碳原子的α-烯烃共聚单体共聚 其中在至少一个所述气相反应器中，生长的聚合物颗粒在快速流化或运输条件下通过第一聚合区向上流动，留下所述第一聚合区并进入第二聚合区，通过它们向下流动 在重力的作用下。