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23 条记录 (耗时 0.039 秒)

    Method for the continuous production of ethylene homo- and ethylene co-polymers
    2.
    发明授权
    Method for the continuous production of ethylene homo- and ethylene co-polymers 失效
    连续生产乙烯均聚物和乙烯共聚物的方法

    公开(公告)号：US06727326B2

    公开(公告)日：2004-04-27

    申请号：US10258940

    申请日：2002-10-29

    申请人： Frank-Olaf Mähling ,  Dieter Littmann ,  Andreas Daiss

    发明人： Frank-Olaf Mähling ,  Dieter Littmann ,  Andreas Daiss

    IPC分类号： C08F200

    CPC分类号： B01J19/242 ,  B01J3/042 ,  B01J8/0005 ,  B01J8/067 ,  B01J2208/00035 ,  B01J2208/00212 ,  B01J2219/00033 ,  B01J2219/00056 ,  B01J2219/00094 ,  C08F10/02 ,  C08F2400/02 ,  C08F2/001

    摘要： The invention relates to a method for the continuous production of ethylene homo- and ethylene co-polymers in the presence of radical polymerisation initiators and, optionally, molecular weight regulators in a tubular reactor with a hot water jacket and one or several reaction zones at pressures of 1000 to 4000 bar and temperatures of 120° C. to 350° C. The hot water jacket of each reaction zone is divided into two independently-controllable, separate, longitudinal sections and the water exit temperature from the tubular jacket of the first longitudinal section per reaction zone, extending between the point of initiator addition and 20 to 50% of the reaction zone length, is set to 180° C. to 210° C. and in the following second longitudinal section of said reaction zone the hot water exit temperature from the tube jacket is set to 140° C. to 180° C.

    摘要翻译： 本发明涉及在自由基聚合引发剂存在下连续生产乙烯均聚物和乙烯共聚物的方法，以及任选地，在具有热水套管和一个或多个反应区域的管式反应器中的分子量调节剂的压力 1000至4000巴，温度为120℃至350℃。每个反应区的热水套分为两个可独立控制的分开的纵向截面，并且第一纵向的管状护套的出水温度 在引发剂加入点和反应区长度的20〜50％之间延伸的每个反应区的截面设定为180℃至210℃，并且在所述反应区的随后的第二纵向段中，热水出口 管夹套的温度设定为140〜180℃。

    Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits
    4.
    发明授权
    Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits 有权
    进行自由基乙烯高压聚合同时防止不期望的聚合物沉积物的方法

    公开(公告)号：US06562915B2

    公开(公告)日：2003-05-13

    申请号：US10182563

    申请日：2002-07-31

    申请人： Frank-Olaf Mähling ,  Andreas Deckers ,  Dieter Littmann ,  Heinz Friedrich Sutoris ,  Kaspar Evertz

    发明人： Frank-Olaf Mähling ,  Andreas Deckers ,  Dieter Littmann ,  Heinz Friedrich Sutoris ,  Kaspar Evertz

    IPC分类号： C08F240

    CPC分类号： C08F297/08 ,  C08F110/02 ,  C08F2/40 ,  C08F2/00 ,  C08F4/34 ,  C08F2/005 ,  C08F2500/26

    摘要： In a process for the polymerization or copolymerization of ethylenically unsaturated monomers in the presence of polymerization initiators which decompose to form free radicals in a continuously operated polymerization apparatus comprising a fresh gas feed line, a precompressor, a postcompressor, a reactor, a pressure maintenance valve, a high-pressure circuit having a high-pressure product separator and a high-pressure circulation gas return line, a product valve and a low-pressure circuit having a low-pressure product separator and a low-pressure circulation gas return line, nitrogen monoxide or oxygen is introduced as inhibitor into the high-pressure circuit, into the low-pressure circuit and/or the precompressor.

    摘要翻译： 在用于在连续操作的聚合装置中分解形成自由基的聚合引发剂存在下烯键式不饱和单体的聚合或共聚的方法中，所述聚合引发剂包括新鲜气体进料管线，预压缩机，后压缩机，反应器，压力维持阀 具有高压产品分离器和高压循环气体返回管路的高压回路，具有低压产品分离器和低压循环气体返回管路的产品阀和低压回路，氮气 将一氧化碳或氧气作为抑制剂引入高压回路中，进入低压回路和/或预压缩机。

    Method for producing ethylene homo-and copolymers by intensively mixing a reactive reaction component with a mobile flow medium
    5.
    发明授权
    Method for producing ethylene homo-and copolymers by intensively mixing a reactive reaction component with a mobile flow medium 有权
    通过将反应性反应成分与流动介质强烈混合来生产乙烯均聚物和共聚物的方法

    公开(公告)号：US06677408B1

    公开(公告)日：2004-01-13

    申请号：US10009923

    申请日：2001-12-06

    申请人： Frank-Olaf Mähling ,  Andreas Daiss ,  Georg Groos ,  Andreas Wölfert

    发明人： Frank-Olaf Mähling ,  Andreas Daiss ,  Georg Groos ,  Andreas Wölfert

    IPC分类号： C08F206

    CPC分类号： B01J19/2415 ,  B01F5/0473 ,  B01F5/0614 ,  B01F5/0644 ,  B01F5/0646 ,  B01F5/0652 ,  B01F2215/0431 ,  B01J19/26 ,  C08F10/02 ,  C08F110/02 ,  C08F4/28 ,  C08F2/01 ,  C08F2/00 ,  C08F2500/12

    摘要： The invention relates to a method for producing ethylene homo- and copolymers in a tubular reactor at pressures above 1000 bar and temperatures in the range from 120 to 350° C. by free-radical polymerization, in which firstly small amounts of free-radical chain initiators are added to a mobile flow medium comprising ethylene, molecular weight regulator and optionally polyethylene, and the polymerization is then carried out. In accordance with the invention, the mobile flow medium is firstly split into two volume elements flowing separately from one another, the volume elements flowing separately from one another are then set in rotation in opposite directions by means of suitable flow elements, the flowing volume elements rotating in opposite directions are then recombined to form a mobile flow medium, and then, at the moment of or shortly after the combining of the flowing volume elements rotating in opposite directions, the free-radical chain initiator is fed into the sheared interfacial region between the flowing volume elements rotating in opposite directions. The invention also relates to an apparatus for carrying out this method.

    摘要翻译： 本发明涉及一种通过自由基聚合在管状反应器中制备乙烯均聚物和共聚物的方法，其中压力高于1000巴，温度范围为120-350℃，其中首先将少量的自由基链 将引发剂加入到包含乙烯，分子量调节剂和任选的聚乙烯的流动介质中，然后进行聚合。 根据本发明，移动流媒体首先被分成彼此分开流动的两个体积元件，然后通过合适的流动元件将相互分开流动的体积元件以相反方向旋转，流动体积元件 然后在相反方向旋转以形成移动流动介质，然后在相反方向旋转的流动体积元件组合之后或不久之后，将自由基链引发剂进料到剪切界面区域之间， 流动体积元件以相反的方向旋转。 本发明还涉及一种用于执行该方法的装置。

    COPOLYMER WITH HIGH CHEMICAL HOMOGENEITY AND USE THEREOF FOR IMPROVING THE COLD FLOW PROPERTIES OF FUEL OILS
    8.
    发明申请
    COPOLYMER WITH HIGH CHEMICAL HOMOGENEITY AND USE THEREOF FOR IMPROVING THE COLD FLOW PROPERTIES OF FUEL OILS 有权
    具有高化学均匀性的共聚物及其用于改善燃油的冷流特性

    公开(公告)号：US20120005951A1

    公开(公告)日：2012-01-12

    申请号：US13176317

    申请日：2011-07-05

    申请人： Frank-Olaf Mähling ,  Jan Strittmatter ,  Irene Trötsch-Schaller ,  Ivette Garcia Castro ,  Michael Schroers ,  Uwe Rebholz

    发明人： Frank-Olaf Mähling ,  Jan Strittmatter ,  Irene Trötsch-Schaller ,  Ivette Garcia Castro ,  Michael Schroers ,  Uwe Rebholz

    IPC分类号： C10L1/18 ,  C08F8/14 ,  C08F220/06

    CPC分类号： C08F210/02 ,  C08F8/14 ,  C08F220/06 ,  C08F220/18 ,  C10L1/1963 ,  C10L1/1973 ,  C10L10/14 ,  C10L10/16

    摘要： A copolymer with high chemical homogeneity, consisting of (A) 50 to 30% by weight of ethylene, (B) 50 to 70% by weight of C4- to C24-hydrocarbyl ester of (meth)acrylic acid, (C) 0 to 5% by weight of (meth)acrylic acid and (D) 0 to 10% by weight of copolymerizable monomers, obtainable by polymerizing a mixture of 80 to 60% by weight of ethylene, 20 to 40% by weight of (meth)acrylic acid and 0 to 10% by weight of copolymerizable monomers in a backmixing, continuous polymerization apparatus, and subsequently polymer-analogously esterifying the resulting copolymer with C4- to C24-hydrocarbinols. The inventive copolymer is suitable for improving the cold flow properties of fuel oils, for lowering the lower mixing temperature of cold flow improver additives into fuel oils, and for improving the filterability of fuel oils comprising cold flow improver additives.

    摘要翻译： 具有高化学均匀性的共聚物，由（A）50〜30重量％的乙烯，（B）50〜70重量％的（甲基）丙烯酸的C 4〜C 24烃基酯，（C）0〜 5重量％的（甲基）丙烯酸和（D）0至10重量％的可共聚单体，可通过将80至60重量％的乙烯，20至40重量％的（甲基）丙烯酸酯 酸和0至10重量％的可共聚单体，在后混合，连续聚合装置中，随后用C4-至C24-烃基聚合物类似地酯化所得共聚物。 本发明的共聚物适用于改善燃料油的冷流性能，用于将冷流改进剂添加剂降低到燃料油中的较低混合温度，以及用于改善包含冷流改进剂添加剂的燃料油的过滤性。