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    Preparation of copolmers of ethylene with acrylic acid esters in a tubular reactor at above 500 bar
    3.
    发明授权
    Preparation of copolmers of ethylene with acrylic acid esters in a tubular reactor at above 500 bar 失效
    在500巴以上的管式反应器中制备乙烯与丙烯酸酯的共聚物

    公开(公告)号：US4788265A

    公开(公告)日：1988-11-29

    申请号：US41232

    申请日：1987-04-22

    申请人： Klaus Pfleger ,  Klaus Boettcher ,  Oskar Buechner ,  Friedrich Kanne ,  Siegfried Kursawe ,  Wieland Zacher

    发明人： Klaus Pfleger ,  Klaus Boettcher ,  Oskar Buechner ,  Friedrich Kanne ,  Siegfried Kursawe ,  Wieland Zacher

    IPC分类号： C08F2/00 ,  C08F2/02 ,  C08F2/38 ,  C08F210/00 ,  C08F210/02 ,  C08F220/02 ,  C08F220/10

    CPC分类号： C08F210/02

    摘要： Copolymers of ethylene with acrylates or solutions of free acrylic acid in acrylates are prepared in a continuously operated tubular polymerization system at high pressures and temperatures by feeding a mixture of ethylene, acrylate, initiator and, if appropriate, regulant into the polymerization system in the form of a main stream at the inlet point thereof and at the same time through two or more secondary streams, secondary streams (I) being metered in at points where the reaction temperature has just exceeded a maximum temperature due to the heat of polymerization and secondary streams (II) at points which, relative to the direction of flow of the ethylene, are upstream of the feed points of secondary streams (I) and upstream of the respective maximum temperature.

    摘要翻译： 乙烯与丙烯酸酯或游离丙烯酸溶液在丙烯酸酯中的共聚物在连续操作的管式聚合体系中在高压和高温下通过将乙烯，丙烯酸酯，引发剂和（如果合适的话）调节剂的混合物以形式 的主流，并且同时通过两个或更多个二次流，在由于聚合热和二次流引起的反应温度刚刚超过最大温度的点处计量二次流（I） （II）在相对于乙烯流动方向的点处在次级流（I）的进料点的上游和相应的最高温度的上游。

    Manufacture of ethylene copolymers
    4.
    发明授权
    Manufacture of ethylene copolymers 失效
    乙烯共聚物的制造

    公开(公告)号：US4217431A

    公开(公告)日：1980-08-12

    申请号：US2330

    申请日：1979-01-10

    申请人： Wieland Zacher ,  Klaus Pfleger ,  Klaus Boettcher ,  Ronald Skorczyk ,  Oskar Buechner

    发明人： Wieland Zacher ,  Klaus Pfleger ,  Klaus Boettcher ,  Ronald Skorczyk ,  Oskar Buechner

    IPC分类号： C08F10/00 ,  C08F2/34 ,  C08F210/02 ,  C08F6/00

    CPC分类号： C08F210/02

    摘要： A continuous process for the manufacture of ethylene copolymers under high pressure and at high temperature in a polymerization zone, with transfer of the reaction mixture into a high pressure product isolation zone and from there into a low pressure product isolation zone, and recycling of the unconverted gas from the high pressure product isolation zone into the polymerization zone and from the low pressure product isolation zone into a low temperature separator, from where the comonomer separated off is recycled to the polymerization process, while the ethylene is discharged as off-gas. The gas taken off the low pressure product isolation zone is preferably compressed to from 10 to 20 bar and cooled to from -10.degree. to -30.degree. C. before it is fed into the low temperature separator. There is a substantial improvement in the efficiency of separating off the comonomer.

    摘要翻译： 在高压和高温下在聚合区中制造乙烯共聚物的连续方法，将反应混合物转移到高压产物隔离区，并从那里转移到低压产物隔离区，并将未转化的 气体从高压产物隔离区进入聚合区，从低压产物隔离区进入低温分离器，从分离出的共聚单体再循环到聚合过程中，而乙烯作为废气排出。 从低压产品隔离区取出的气体优选压缩至10〜20巴，冷却至-10〜-30℃，然后送入低温分离器。 分离共聚单体的效率有显着改善。

    Production of ethylene copolymers
    5.
    发明授权
    Production of ethylene copolymers 失效
    乙烯共聚物的生产

    公开(公告)号：US4260722A

    公开(公告)日：1981-04-07

    申请号：US97838

    申请日：1979-11-27

    申请人： Klaus Pfleger ,  Wieland Zacher ,  Klaus Boettcher ,  Ronald Skorczyk ,  Oskar Buechner ,  Franz G. Mietzner

    发明人： Klaus Pfleger ,  Wieland Zacher ,  Klaus Boettcher ,  Ronald Skorczyk ,  Oskar Buechner ,  Franz G. Mietzner

    IPC分类号： C08F2/00 ,  C08F2/02 ,  C08F8/00 ,  C08F10/00 ,  C08F210/02

    CPC分类号： C08F210/02

    摘要： A process for the continuous production of an ethylene copolymer by compressing a mixture of ethylene and comonomer in a pre-compressor and a post-compressor, copolymerizing the mixture in a polymerization zone at a high temperature and high pressure, transferring the reaction mixture into a high pressure product isolation zone, from there into a low pressure product isolation zone and thereafter into a discharge extruder, and recycling the greater part of the unconverted monomer into the polymerization process and passing a small part of the unconverted gas into a low temperature isolation zone, in which process a small part of the gas recycled from the high pressure product isolation zone is passed into the low temperature isolation zone, which is preferably under a pressure of from 10 to 30 bar and at from -10.degree. to -50.degree. C., and all the gas taken off the low pressure product isolation zone is fed to the pre-compressor. Using the novel process, the separating-off of the comonomer which has remained unconverted in the polymerization process can be improved.

    摘要翻译： 通过在预压缩机和后压缩机中压缩乙烯和共聚单体的混合物来连续生产乙烯共聚物的方法，在高温高压下将混合物在聚合区中共聚，将反应混合物转移到 高压产品隔离区，从那里进入低压产品隔离区，然后进入排出挤出机，并将大部分未转化的单体再循环到聚合过程中，并将未转化的气体的一小部分通入低温隔离区 在该方法中，将从高压产物隔离区再循环的少量气体通入低温隔离区，优选在10〜30巴的压力和-10℃〜-50℃ 将从低压产品隔离区取出的全部气体送入预压缩机。 使用该新方法，可以提高在聚合过程中保持未转化的共聚单体的分离。

    Manufacture of high pressure polyethylene
    6.
    发明授权
    Manufacture of high pressure polyethylene 失效
    制造高压聚乙烯

    公开(公告)号：US4153774A

    公开(公告)日：1979-05-08

    申请号：US850398

    申请日：1977-11-10

    申请人： Klaus Boettcher ,  Heinrich G. Hoerdt ,  Wieland Zacher ,  Oskar Buechner

    发明人： Klaus Boettcher ,  Heinrich G. Hoerdt ,  Wieland Zacher ,  Oskar Buechner

    IPC分类号： C08F6/26 ,  C08F6/00 ,  C08F10/02

    CPC分类号： C08F6/26 ,  Y10S526/921

    摘要： A process for the high pressure polymerization of ethylene at elevated temperatures in a polymerization zone followed by transfer of the reaction mixture, through a cooling zone, into the separation zone. In this process, the pressure at the cooling zone outlet is periodically reduced briefly, at recurring intervals, these brief pressure reductions being independent of the pressure reductions in the polymerization zone. Using this process, the conversion in the polymerization unit can be increased and a more homogeneous ethylene polymer can be obtained.

    摘要翻译： 在聚合区域中在高温下高压聚合乙烯的方法，然后将反应混合物通过冷却区转移到分离区中。 在此过程中，冷却区出口处的压力周期性地以重复的间隔周期性地减小，这些简单的压力降低与聚合区域中的压力降低无关。 使用该方法可以提高聚合单元中的转化率，并可获得更均匀的乙烯聚合物。

    Preparation of copolymers of ethylene with vinyl esters in a tubular reactor at above 500 bar
    7.
    发明授权
    Preparation of copolymers of ethylene with vinyl esters in a tubular reactor at above 500 bar 失效
    在500巴以上的管式反应器中制备乙烯与乙烯基酯的共聚物

    公开(公告)号：US4794004A

    公开(公告)日：1988-12-27

    申请号：US41231

    申请日：1987-04-22

    申请人： Klaus Pfleger ,  Klaus Boettcher ,  Oskar Buechner ,  Friedrich Kanne ,  Siegfried Kursawe

    发明人： Klaus Pfleger ,  Klaus Boettcher ,  Oskar Buechner ,  Friedrich Kanne ,  Siegfried Kursawe

    IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F210/00 ,  C08F210/02 ,  C08F220/40

    CPC分类号： C08F210/02

    摘要： Copolymers of ethylene with vinyl esters are prepared in a continuously operated tubular polymerization system at high pressure and temperatures by feeding a mixture of ethylene, vinyl ester, initiator and, if appropriate, regulant into the polymerization system in the form of a mainstream at the inlet point thereof and at the same time through two or more secondary streams downstream of the inlet point, secondary streams (I) being metered in at points where the reaction temperature has just exceeded a maximum temperature due to the heat of polymerization and secondary streams (II) at points which, relative to the direction of flow of the ethylene, are upstream of the feed points of secondary streams (I) and upstream of the respective maximum temperature.

    摘要翻译： 乙烯与乙烯基酯的共聚物在连续操作的管状聚合体系中在高压和高温下通过将乙烯，乙烯基酯，引发剂和（如果合适的话）调节剂的混合物在入口处以主流形式进入聚合体系来制备 并且同时通过入口点下游的两个或更多个次级流，在由于聚合热和次流（II）引起的反应温度刚刚超过最大温度的点处计量二次流（I） ），其相对于乙烯的流动方向在次级流（I）的进料点的上游和相应的最高温度的上游。

    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars
    10.
    发明授权
    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars 失效
    在压力高于500巴的双区管式反应器中制造乙烯聚合物

    公开(公告)号：US4076919A

    公开(公告)日：1978-02-28

    申请号：US741939

    申请日：1976-11-15

    申请人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    发明人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    IPC分类号： C08F2/00 ,  C08F4/28 ,  C08F10/00 ,  C08F10/02

    CPC分类号： C08F10/02

    摘要： Ethylene polymers are manufactured in a tubular reactor under high pressure and at high temperatures in the presence of polymerization initiators. The polymerization is carried out in two different zones of the reactor, a mixture of ethylene, oxygen and regulator being fed into the first zone and a co-initiator having a half-life temperature, measured in benzene, of above 140.degree. C being additionally fed into the second zone. The co-initiator may be a peroxide or a hydroperoxide. The melt index, or the haze and gloss of a film produced from the resulting ethylene polymer, can be varied advantageously through the choice of the co-initiator.

    摘要翻译： 乙烯聚合物在管式反应器中在高压和高温下在聚合引发剂存在下制备。 在反应器的两个不同区域进行聚合，将乙烯，氧气和调节剂的混合物进料到第一区域中，另外在苯中测定的具有半衰期温度的共引发剂在140℃以上 进入第二区。 共引发剂可以是过氧化物或氢过氧化物。 可以通过选择共引发剂来有利地改变由所得乙烯聚合物制备的膜的熔体指数或雾度和光泽度。