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    Preparation of copolymers of ethylene with alkenecarboxylic acids
    3.
    发明授权
    Preparation of copolymers of ethylene with alkenecarboxylic acids 失效
    乙烯与烯烃羧酸的共聚物的制备

    公开(公告)号：US5739242A

    公开(公告)日：1998-04-14

    申请号：US544442

    申请日：1995-11-17

    申请人： Andreas Deckers ,  Dieter Littmann ,  Roger Klimesch

    发明人： Andreas Deckers ,  Dieter Littmann ,  Roger Klimesch

    IPC分类号： C08F210/02 ,  C08F220/04

    CPC分类号： C08F210/02

    摘要： A process for the preparation of copolymers of ethylene and dicarboxylic acid in the presence of a free-radical inhibitor. The process comprises of warming a mixture of ethylene and C.sub.3 -C.sub.6 -alkenecarboxylic acid to a temperature of from 60.degree. to 100.degree. C. before addition of the free-radical inhibitor. The maximum polymerization temperature to recover said copolymers of ethylene is in the range of from 100.degree. to 260.degree. C.; and wherein said copolymer comprises from 94 to 99.5 mol % of ethylene and from 0.5 to 6.0 mol % of C.sub.3 -C.sub.6 -alkenecarboxylic acid.

    摘要翻译： 一种在自由基抑制剂存在下制备乙烯和二羧酸的共聚物的方法。 该方法包括在加入自由基抑制剂之前将乙烯和C 3 -C 6 - 链烯羧酸的混合物加热到60℃至100℃的温度。 回收所述乙烯共聚物的最大聚合温度在100至260℃的范围内。 并且其中所述共聚物包含94-99.5mol％的乙烯和0.5-6.0mol％的C 3 -C 6 - 烯烃羧酸。

    Ethylene-based copolymers and their use as flow improvers in mineral oil middle distillates
    6.
    发明授权
    Ethylene-based copolymers and their use as flow improvers in mineral oil middle distillates 失效
    乙烯基共聚物及其在矿物油中间馏分中作为流动改进剂的用途

    公开(公告)号：US5747616A

    公开(公告)日：1998-05-05

    申请号：US869971

    申请日：1997-06-05

    申请人： Hans-Joachim Muller ,  Bernd Wenderoth ,  Albin Berger ,  Dieter Littmann ,  Roger Klimesch ,  Knut Oppenlander ,  Bernd Lothar Marczinke ,  Thomas Ruhl ,  Marc Heider

    发明人： Hans-Joachim Muller ,  Bernd Wenderoth ,  Albin Berger ,  Dieter Littmann ,  Roger Klimesch ,  Knut Oppenlander ,  Bernd Lothar Marczinke ,  Thomas Ruhl ,  Marc Heider

    IPC分类号： C08F10/00 ,  C08F210/02 ,  C10L1/22 ,  C10L1/236 ,  C10L10/14 ,  C08F222/40 ,  C08F216/18

    CPC分类号： C10L1/2366 ,  C08F210/02 ,  C10L1/2368

    摘要： Ethylene-based copolymers which are suitable as flow improvers for mineral oil middle distillates are composed of a) from 50 to 94% by weight of ethylene, b) from 3 to 30% by weight of one or more vinyl esters of C.sub.2 -C.sub.6 -monocarboxylic acids, c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the general formula I ##STR1## where R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 may be identical or different and are each hydrogen or C.sub.1 -C.sub.6 -alkyl and A.sup.1 is straight-chain or branched C.sub.2 -C.sub.10 -alkylene, and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), copolymers in which monomer b) is vinyl acetate and which have a number average molecular weight of from 5000 to 50,000 being excluded, or are composed of a') from 50 to 95.5% by weight of ethylene, b') from 4 to 30% by weight of one or more vinyl esters of C.sub.2 -C.sub.6 -monocarboxylic acids, c') from 0.5 to 20% by weight of one or more vinylimidazoles of the general formula II ##STR2## where R.sup.4, R.sup.5 and R.sup.6 may be identical or different and are each hydrogen or C.sub.1 -C.sub.6 -alkyl, or from 0.5 to 20% by weight of one or more aminoalkyl vinyl ethers of the general formula III R.sup.7 R.sup.8 N--A.sup.2 --O--CR.sup.9 .dbd.CR.sup.10 R.sup.11(III) where R.sup.7 and R.sup.8 are each C.sub.1 -C.sub.6 -alkyl, R.sup.9, R.sup.10 and R.sup.11 are each hydrogen or C.sub.1 -C.sub.6 -alkyl and A.sup.2 is C.sub.2 -C.sub.6 -alkylene, and d') from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a') to c').

    摘要翻译： 适用于矿物油中间馏分的流动改进剂的乙烯基共聚物由以下组成：a）50-94重量％的乙烯，b）3-30重量％的一种或多种C2-C6- 一元羧酸，c）3至20重量％的一种或多种通式I（I）的氨基烷基丙烯酸酯，其中R 1是氢或甲基，R 2和R 3可以相同或不同，各自为氢或C1 -C6-烷基和A1是直链或支链C 2 -C 10 - 亚烷基，和d）0至10重量％的可与单体a）至c）共聚的一种或多种单体，其中单体b ）为乙酸乙烯酯，其数均分子量为5000〜50,000，或者由以下组成：a）50〜95.5重量％的乙烯，b'），4〜30重量％的一种或多种 更多的C2-C6-一元羧酸的乙烯基酯，c'）0.5至20重量％的一种或多种通式II的乙烯基咪唑（II）w 这里R 4，R 5和R 6可以相同或不同，各自为氢或C 1 -C 6烷基，或0.5至20重量％的一种或多种通式IIIR7R8N-A2-O-CR9 = CR10R11的氨基烷基乙烯基醚 （III）其中R 7和R 8各自为C 1 -C 6烷基，R 9，R 10和R 11各自为氢或C 1 -C 6烷基，且A 2为C 2 -C 6亚烷基，d'）为0至10重量％ 一种或多种可与单体a'）至c'）共聚的单体。

    Method for ethylene polymerization in a tubular reactor with reduced output
    7.
    发明授权
    Method for ethylene polymerization in a tubular reactor with reduced output 有权
    在具有降低的产量的管式反应器中进行乙烯聚合的方法

    公开(公告)号：US08273835B2

    公开(公告)日：2012-09-25

    申请号：US13144355

    申请日：2010-01-14

    申请人： Dieter Littmann ,  Andre-Armand Finette ,  Hans Joachim Meinke

    发明人： Dieter Littmann ,  Andre-Armand Finette ,  Hans Joachim Meinke

    IPC分类号： C08F2/00 ,  C08F10/02 ,  B01J19/24

    CPC分类号： B01J19/2415 ,  B01J4/008 ,  C08F10/02 ,  C08F2/38 ,  C08F4/38 ,  C08F2/00

    摘要： Process for the preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiators at from 100° C. to 350° C. and pressures in the range of from 160 MPa to 350 MPa in a tubular reactor with at least two spatially separated initiator injection points, wherein injecting initiator rises the temperature of the reaction mixture in the reaction zone following the injection point, and the first initiator injection point of the tubular reactor is not provided with initiator or is provided with so little initiator that the temperature of the reaction mixture does not rise more than 20° C. in the first reaction zone and method for reducing the output of a high pressure tubular reactor for the homo- or copolymerization of ethylene in the presence of free-radical polymerization initiators with at least two initiator injection points, wherein feeding of free-radical polymerization initiator to the first initiator injection point is discontinued or reduced to a level that the temperature of the reaction mixture in the first reaction zone does not rise more than 20° C.

    摘要翻译： 在自由基聚合引发剂存在下，在100℃至350℃下制备乙烯均聚物或共聚物的方法，并且在具有至少两个空间位置的管式反应器中在160MPa至350MPa范围内的压力 分离的引发剂注入点，其中注射引发剂在注射点之后升高反应区域中的反应混合物的温度，并且管式反应器的第一引发剂注入点不具有引发剂，或者设置有少量引发剂， 反应混合物在第一反应区域中不会升高超过20℃，并且在自由基聚合引发剂存在下，降低高压管式反应器用于乙烯均聚或共聚的产物的方法与至少两种 引发剂注入点，其中自由基聚合引发剂向第一引发剂注入点的进料停止或减少 d达到第一反应区中的反应混合物的温度不升高超过20℃的水平。

    Process for the preparation of ethylene copolymers in the presence of free-radical polymerization initiator by copolymerizing ethylene, a bi- or multifunctional comonomer and optionally further comonomers
    10.
    发明授权
    Process for the preparation of ethylene copolymers in the presence of free-radical polymerization initiator by copolymerizing ethylene, a bi- or multifunctional comonomer and optionally further comonomers 有权
    在自由基聚合引发剂存在下通过共聚乙烯，双或多官能共聚单体和任选的其它共聚单体制备乙烯共聚物的方法

    公开(公告)号：US09238700B2

    公开(公告)日：2016-01-19

    申请号：US13996415

    申请日：2011-12-19

    申请人： Dieter Littmann ,  Dieter Lilge ,  Barbara Gall ,  Iakovos Vittorias ,  Gerd Mannebach ,  Markus Busch ,  Thomas Herrmann

    发明人： Dieter Littmann ,  Dieter Lilge ,  Barbara Gall ,  Iakovos Vittorias ,  Gerd Mannebach ,  Markus Busch ,  Thomas Herrmann

    IPC分类号： B05D3/02 ,  C08F210/02 ,  C08F2/38

    CPC分类号： C08F210/02 ,  C08F2/38 ,  C08F2/00 ,  C08F220/28

    摘要： Process for preparing ethylene copolymers in the presence of free-radical polymerization initiator at pressures in the range of from 160 MPa to 350 MPa and temperatures in the range of from 100° C. to 350° C. in a tubular reactor by copolymerizing ethylene, a bi- or multifunctional comonomer and optionally further comonomers, wherein the bi- or multifunctional comonomer bears at least two different functional groups, of which at least one is a unsaturated group, which can be incorporated into the growing polymer chain, and at least another functional group can act as chain transfer agent in radical ethylene polymerization, ethylene copolymers obtainable by such a process, the use of the ethylene copolymers for extrusion coating and a process for extrusion coating a substrate selected from the group consisting of paper, paperboard, polymeric film, and metal, with such ethylene copolymers.

    摘要翻译： 在自由基聚合引发剂存在下，在160MPa至350MPa的压力范围内制备乙烯共聚物的方法，在管式反应器中通过共聚乙烯制备温度在100℃至350℃的方法， 双功能或多功能共聚单体和任选的其它共聚单体，其中双官能或多功能共聚单体具有至少两个不同的官能团，其中至少一个是不饱和基团，其可以并入生长的聚合物链中，并且至少另一个 官能团可以作为自由基乙烯聚合中的链转移剂，可通过这种方法获得的乙烯共聚物，使用乙烯共聚物进行挤出涂布，以及用于挤出涂布选自纸，纸板，聚合物膜 ，和金属，与这种乙烯共聚物。