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64 条记录 (耗时 0.025 秒)

    Method for drying and degassing polyolefins
    41.
    发明授权
    Method for drying and degassing polyolefins 失效
    干燥和脱气聚烯烃的方法

    公开(公告)号：US06465608B1

    公开(公告)日：2002-10-15

    申请号：US09980566

    申请日：2001-11-15

    申请人： Michael Witt ,  Paulus De Lange ,  Thomas Perner ,  Andreas Deckers ,  Kaspar Evertz ,  Dieter Lilge

    发明人： Michael Witt ,  Paulus De Lange ,  Thomas Perner ,  Andreas Deckers ,  Kaspar Evertz ,  Dieter Lilge

    IPC分类号： C08F600

    CPC分类号： C08F6/005 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/13

    摘要： The invention relates to a method for drying and degassing polyolefins in which the polymerization product leaving a polymerization reactor is brought into contact with a degassing medium and simultaneously decompressed. The degassing medium employed according to the invention is the monomer to be polymerized, which, in particular, flows through a decompression tank in a circulation process and which is preferably also enriched with ethylene or other low-boiling olefins in an amount in the range from 0 to 100 mol %, based on the total amount of circulating gas. A polymerization in an amount of up to 10%, based on the total polymerization conversion, takes place in accordance with the invention inside the decompression tank.

    摘要翻译： 本发明涉及一种干燥脱气聚烯烃的方法，其中离开聚合反应器的聚合产物与脱气介质接触并同时减压。 根据本发明使用的脱气介质是待聚合的单体，其特别是在循环过程中流过减压槽，并且其优选还富含乙烯或其它低沸点烯烃，其量为 0〜100摩尔％，基于循环气体的总量。 根据本发明，在减压槽内进行基于总聚合转化率高达10％的聚合。

    Low-odor polyethylene blends
    42.
    发明授权
    Low-odor polyethylene blends 失效
    低气味聚乙烯混合物

    公开(公告)号：US06462135B1

    公开(公告)日：2002-10-08

    申请号：US09743923

    申请日：2001-01-17

    申请人： Wolfgang Rohde ,  Peter Bauer ,  Dieter Lilge ,  Martin Lux ,  Paulus de Lange ,  Guido Funk

    发明人： Wolfgang Rohde ,  Peter Bauer ,  Dieter Lilge ,  Martin Lux ,  Paulus de Lange ,  Guido Funk

    IPC分类号： C08L2300

    CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L2314/04 ,  Y10T428/1352 ,  Y10T428/31855 ,  C08L2666/04

    摘要： In a low-odor polyethylene blend made from a high-molecular-weight ethylene copolymer obtainable by polymerization in the presence of a Ziegler catalyst and from a low-molecular-weight ethylene homopolymer or ethylene copolymer obtainable by polymerization in the presence of a chromocene catalyst on an oxidic support, the Al content of the high-molecular-weight component is from 5 to 60 mg/kg, the Al content of the low-molecular-weight component is from 0 to 5 mg/kg and the Al content of the blend is from 1 to 55 mg/kg. Processes are described for preparing blends of this type. Their use is described for producing moldings, in particular hollow articles and pipes. Moldings, in particular hollow articles and pipes, are produced from low-odor polyethylene blends.

    摘要翻译： 在由可在齐格勒催化剂存在下聚合得到的高分子量乙烯共聚物和可通过在色烯催化剂存在下聚合得到的低分子量乙烯均聚物或乙烯共聚物制成的低气味聚乙烯共混物 在氧化载体上，高分子量成分的Al含量为5〜60mg / kg，低分子量成分的Al含量为0〜5mg / kg，Al 共混物为1至55mg / kg。 描述了制备这种类型的共混物的方法。 它们的用途描述用于生产模制品，特别是中空制品和管道。 木制品，特别是中空制品和管道，由低气味聚乙烯混合物制成。

    Monomodal Copolymer of Ethylene for Injection Molding and Process for its Preparation
    46.
    发明申请
    Monomodal Copolymer of Ethylene for Injection Molding and Process for its Preparation 审中-公开
    用于注射成型的乙烯单共聚物及其制备方法

    公开(公告)号：US20100144988A1

    公开(公告)日：2010-06-10

    申请号：US12449082

    申请日：2008-01-15

    申请人： Klaus Foettinger ,  Manfred Hecker ,  Lothar Berger ,  Rainer Karer ,  Dieter Lilge

    发明人： Klaus Foettinger ,  Manfred Hecker ,  Lothar Berger ,  Rainer Karer ,  Dieter Lilge

    IPC分类号： C08F210/02 ,  C08F4/22

    CPC分类号： C08F210/16 ,  C08F2/34 ,  C08F4/24 ,  C08F10/14 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/11

    摘要： Monomodal copolymers of ethylene and molding compositions comprising such copolymers, wherein the copolymers have a density determined according to DIN EN ISO 1183-1, variant A in the range from 0.938 to 0.944 g/cm3, a melt index MFR21 determined according to ISO 1133 at 190° C. under a load of 21.6 kg in the range from 12 to 17 g/10 min, a weight average molar mass Mw, in the range from 140 000 g/mol to 330 000 g/mol, a polydispersity Mw/Mn in the range from 9 to 17, and a content of comonomer side chains per 1000 carbon atoms C x equal to or above a value defined via equation (I) Cx=128.7−134.62×d′, wherein d′ is the numerical value of the density of the copolymer in g/cm3, the use of the copolymers for producing injection-molded articles, as well as injection-molded articles comprising the copolymers, and process for the preparation of such monomodal copolymers.

    摘要翻译： 乙烯的单共聚物和包含这种共聚物的模塑组合物，其中共聚物具有根据DIN EN ISO 1183-1，变体A在0.938至0.944g / cm 3范围内测定的密度，根据ISO 1133测定的熔体指数MFR 21 190℃，21.6kg，12-17g / 10min范围内的重均摩尔质量Mw，140,000g / mol〜330000g / mol，多分散性Mw / Mn 在9至17的范围内，每1000个碳原子的共聚单体侧链的含量C x等于或高于通过式（I）定义的值Cx = 128.7-134.62×d'，其中d'是 共聚物的密度（g / cm 3），用于制备注射成型制品的共聚物的使用，以及包含共聚物的注模制品以及制备这种单峰共聚物的方法。

    Random propylene copolymers
    50.
    发明授权
    Random propylene copolymers 有权
    无规丙烯共聚物

    公开(公告)号：US07026421B2

    公开(公告)日：2006-04-11

    申请号：US10971079

    申请日：2004-10-25

    申请人： David Appleyard ,  Franz Langhauser ,  Murray Horton ,  Roland Hingmann ,  Günther Schweier ,  Volker Rauschenberger ,  Ingolf Hennig ,  Dieter Lilge ,  Werner Schöne ,  Meinolf Kersting

    发明人： David Appleyard ,  Franz Langhauser ,  Murray Horton ,  Roland Hingmann ,  Günther Schweier ,  Volker Rauschenberger ,  Ingolf Hennig ,  Dieter Lilge ,  Werner Schöne ,  Meinolf Kersting

    IPC分类号： C08F210/06 ,  C08F210/08

    CPC分类号： D01F6/30 ,  C08F210/06 ,  C08F210/16 ,  Y10T428/31938 ,  C08F4/6546 ,  C08F210/08 ,  C08F2500/12

    摘要： Random copolymers of propylene with other 1-alkenes having up to carbon atoms, whose content of comonomers is in the range from 0.7 to 1.4% by weight if the only comonomer present in the propylene copolymers is ethylene, or whose content of comonomers is in the range from 0.7 to 3.0% by weight if at least one C4–C10-1-alkene is present as comonomer, and whose cold-xylene-soluble fraction is from 1.0 to 2.5% by weight if ethylene is present as a comonomer in the propylene copolymers, or whose cold-xylene-soluble fraction is from 0.75 to 2.0% by weight if the only comonomers present are C4–C10-1-alkenes, and a process for preparing the random copolymers of propylene is described, as is their use for producing films, fibers or moldings, and also the films, fibers and moldings themselves and biaxially stretched films made from random propylene copolymers of this type and processes for their production.

    摘要翻译： 丙烯与具有至多碳原子的其它1-烯烃的无规共聚物，如果丙烯共聚物中存在的共聚单体中唯一的共聚单体为共聚单体，其共聚单体的含量为0.7-1.4重量％，或其共聚单体的含量为 如果至少一个C 4 -C 10 - 1-烯烃作为共聚单体存在，其冷二甲苯可溶成分为 如果乙烯作为丙烯共聚物中的共聚单体存在，则其重量为1.0至2.5重量％，或者如果仅存在共聚单体为C 4 - 4，则冷二甲苯可溶成分为0.75-2.0重量％ 描述了用于制备膜，纤维或模制品的方法，以及薄膜，纤维和模制品本身以及双轴的方法制备丙烯的无规共聚物的方法。 由这种类型的无规丙烯共聚物制成的拉伸薄膜及其生产方法。