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185 条记录 (耗时 0.039 秒)

    Preparation of supports for catalysts
    131.
    发明申请
    Preparation of supports for catalysts 审中-公开
    催化剂载体的制备

    公开(公告)号：US20080096761A1

    公开(公告)日：2008-04-24

    申请号：US10588390

    申请日：2005-02-02

    申请人： Shahram Mihan ,  Michael Hesse

    发明人： Shahram Mihan ,  Michael Hesse

    IPC分类号： B01J32/00

    CPC分类号： C08F210/16 ,  B01J37/036 ,  C08F4/65912 ,  C08F4/65925 ,  C08F10/00 ,  C08F4/025 ,  C08F4/24 ,  C08F4/65916

    摘要： The invention relates to a process for preparing a support for catalysts, which comprises: a) preparing a hydrogel; b) milling the hydrogel to give a finely particulate hydrogel; c) producing a slurry based on the finely particulate hydrogel; d) drying the slurry comprising the finely particulate hydrogel to give the support for catalysts, wherein a finely particulate hydrogel in which at least 5% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦3 μm; and/or at least 40% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦12 μm, and/or at least 75% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦35 μm, is produced in step b).

    摘要翻译： 本发明涉及一种制备催化剂载体的方法，其包括：a）制备水凝胶; b）研磨水凝胶以得到细颗粒水凝胶; c）基于细颗粒水凝胶生产浆料; d）干燥包含细颗粒状水凝胶的浆料，得到催化剂载体，其中细颗粒状水凝胶，其中基于颗粒总体积的至少5体积％的颗粒的粒径范围 从0um到<= 3mum; 和/或至少40体积％的颗粒，基于颗粒的总体积，其粒度范围为>0μm至≤12μm，和/或至少75体积％ 基于粒子的总体积的颗粒的粒度在>0μm至<=35μm的范围内，在步骤b）中产生。

    Monocyclopentadienyl Complexes
    132.
    发明申请
    Monocyclopentadienyl Complexes 有权
    单环戊二烯基络合物

    公开(公告)号：US20070213484A1

    公开(公告)日：2007-09-13

    申请号：US10583204

    申请日：2004-12-14

    申请人： Shahram Mihan ,  Markus Enders ,  Pablo Fernandez

    发明人： Shahram Mihan ,  Markus Enders ,  Pablo Fernandez

    IPC分类号： C08F4/42 ,  C07D215/04 ,  C07D215/12 ,  C07F17/00 ,  C08F10/00

    CPC分类号： C07F17/00

    摘要： Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged donor and at least one aryl group and a catalyst system comprising at least one of the monocyclopentadienyl complexes, and also processes for preparing them, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and the preparation of the associated cyclopentadienyl system.

    摘要翻译： 单环戊二烯基络合物，其中环戊二烯基体系具有至少一个桥连供体和至少一个芳基，以及包含至少一种单环戊二烯基络合物的催化剂体系，以及其制备方法，使用催化剂体系进行聚合或共聚 的烯烃和通过在催化剂体系的存在下烯烃的聚合或共聚制备聚烯烃的方法和相关的环戊二烯基体系的制备。

    Method for oligomerizing olefins
    133.
    发明授权
    Method for oligomerizing olefins 失效
    低聚烯烃的方法

    公开(公告)号：US07214842B2

    公开(公告)日：2007-05-08

    申请号：US10509871

    申请日：2003-04-09

    申请人： Shahram Mihan ,  Heiko Maas ,  Martina Prinz

    发明人： Shahram Mihan ,  Heiko Maas ,  Martina Prinz

    IPC分类号： C07C2/02

    CPC分类号： C07C2/32 ,  C07C2531/02 ,  C07C2531/14 ,  C07C2531/22 ,  Y02P20/582

    摘要： Olefins are oligomerized by contacting an olefin with a catalyst system that is comprised of a) at least one transition metal complex that is complexed with a polydentate complexing ligand and b) an alkylaluminoxane, each component being present in such amounts that the molar ratio of aluminum transition metal is greater than 10, wherein at least part of the amount of the transition metal complex is added continuously or in portions during the oligomerization.

    摘要翻译： 烯烃通过使烯烃与催化剂体系接触而使其低聚，所述催化剂体系由以下组成：a）至少一种与多齿络合配位体络合的过渡金属络合物和b）烷基铝氧烷，每种组分的存在量使得铝的摩尔比 过渡金属大于10，其中过渡金属配合物的量的至少一部分在低聚反应期间连续地或部分地加入。

    Oligomerization of olefins comprising at least three carbon atoms
    137.
    发明申请
    Oligomerization of olefins comprising at least three carbon atoms 审中-公开
    包含至少三个碳原子的烯烃的低聚

    公开(公告)号：US20050119514A1

    公开(公告)日：2005-06-02

    申请号：US10506602

    申请日：2003-03-11

    申请人： Shahram Mihan ,  Zheiko Maas

    发明人： Shahram Mihan ,  Zheiko Maas

    IPC分类号： C07C2/22 ,  C07B61/00 ,  C07C2/32 ,  C07C11/02 ,  C07C2/02

    CPC分类号： C07C2/32 ,  C07C2531/12 ,  C07C2531/14 ,  C07C2531/22

    摘要： A description is given of a process for the oligomerization of α-olefins having at least 3 carbon atoms, in which the olefin is brought into contact with a catalyst system obtainable from a chromium source, a 1,3,5-trialkyl-1,3,5-triazacyclohexane, where the alkyl radical has no α, β or γ branching, and at least one activator comprising a boron compound, with the molar ratio B:Cr being at least 5. The process allows the preparation of trimers of the α-olefin in high yield and with high selectivity.

    摘要翻译： 给出了具有至少3个碳原子的α-烯烃的低聚方法的描述，其中烯烃与可从铬源，1,3,5-三烷基-1， 3,5-三氮杂环己烷，其中烷基不具有α，β或γ支化，以及至少一种包含硼化合物的活化剂，摩尔比B：Cr至少为5.该方法允许制备三 高产率和高选择性的α-烯烃。