利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.014 秒)

    Polyethylene composition for pipe applications
    2.
    发明公开
    Polyethylene composition for pipe applications 审中-公开
    PolyethylenzusammensetzungfürRohranwendungen

    公开(公告)号：EP2860204A1

    公开(公告)日：2015-04-15

    申请号：EP13004880.4

    申请日：2013-10-10

    申请人： Borealis AG

    发明人： Vahteri, Markku ,  Hjertberg, Thomas ,  Liu, Yi ,  Piel, Tanja ,  Albunia, Alexandra Romina ,  Wahner, Udo

    IPC分类号： C08F2/00 ,  C08L23/06 ,  F16L9/12

    CPC分类号： C08L23/06 ,  C08L2203/18 ,  F16L9/12 ,  Y02P20/582 ,  C08L23/0815 ,  C08F210/16 ,  C08F4/025 ,  C08F4/6492 ,  C08F4/6546 ,  C08F4/6555 ,  C08F210/06 ,  C08F210/14 ,  C08F10/00 ,  C08F2/001

    摘要： The present invention relates to a polyethylene composition for pipe applications comprising a base resin having a density of more than 946.0 kg/m 3 and equal to or less than 955.0 kg/m 3 , wherein the composition has a MFR 21 of 1.7 to 7.0 g/10 min and a FRR 21/5 of more than 10 to equal to or less than 40, and a polyethylene composition obtainable by a multistage process, the multistage process comprising polymerizing ethylene in the presence of a silica supported Ziegler Natta catalyst in a first loop reactor, transferring a first intermediate material to a second loop reactor, further polymerizing said first intermediate material for obtaining a second intermediate material and transferring said second intermediate material to a gas phase reactor, feeding ethylene and comonomer to the gas phase reactor for obtaining a base resin, and finally extruding the base resin together with stabilizers and carbon black into the polyethylene composition.
    The invention further concerns a multistage process for the production of the polyethylene composition and articles, preferably pipes, made from the inventive polyethylene composition.

    摘要翻译： 本发明涉及用于管道应用的聚乙烯组合物，其包含密度大于946.0kg / m 3且等于或小于955.0kg / m 3的基础树脂，其中组合物的MFR 21为1.7至7.0g 10分钟，超过10至等于或小于40的FRR 21/5和可通过多级方法获得的聚乙烯组合物，所述多级方法包括在二氧化硅负载的齐格勒纳塔催化剂存在下在第一 将第一中间材料转移到第二回路反应器，进一步聚合所述第一中间材料以获得第二中间材料并将所述第二中间材料转移到气相反应器，将乙烯和共聚单体进料到气相反应器中，以获得 最后将基础树脂与稳定剂和炭黑一起挤出到聚乙烯组合物中。 本发明还涉及用于生产由本发明的聚乙烯组合物制成的聚乙烯组合物和制品（优选管）的多阶段方法。

    Multimodal polyethylene composition with high pressure resistance
    3.
    发明公开
    Multimodal polyethylene composition with high pressure resistance 有权
    具有高耐压性的多峰聚乙烯组合物

    公开(公告)号：EP2966123A1

    公开(公告)日：2016-01-13

    申请号：EP14002322.7

    申请日：2014-07-07

    申请人： Borealis AG

    发明人： Liu, Yi ,  Albunia, Alexandra Romina ,  Piel, Tanja ,  Prokschi, Hermann ,  Dou, Qizheng

    IPC分类号： C08L23/06 ,  C08L23/08

    CPC分类号： C08L23/06 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/882 ,  B29K2023/065 ,  B29K2023/0683 ,  B29L2023/22 ,  C08F110/02 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/11 ,  C08F2500/17 ,  C08L23/0815 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/068 ,  C08L2207/07 ,  C08L2308/00

    摘要： The present invention relates to a multimodal polyethylene composition which can be manufactured into pipes showing improved pressure resistance comprising a high density multimodal ethylene polymer component (A) having a density of at least 930 kg/m 3 , and a MFR 21 of not more than 15 g/10 min, wherein said composition exhibits a LAOS-NLF defined as LAOS - NLF = G 1 ʹ G 3 ʹ
    where G 1 ʹ - first order Fourier Coefficient
    G 3 ʹ - third order Fourier Coefficient
    of at least 1.7. Such a polyethylene composition is useful for the manufacture of pressure pipes that exhibit improved pressure resistance and creep resistance and do not undergo sagging. Further disclosed is a process for the production of a pipe using such a multimodal polyethylene composition and a pipe comprising such a multimodal polyethylene composition.

    摘要翻译： 本发明涉及一种多模态聚乙烯组合物，其可以制造成耐压性提高的管材，其包含密度至少930kg / m 3和MFR 21不超过15g的高密度多模态乙烯聚合物组分（A） / 10分钟，其中所述组合物表现出定义为LAOS-NLF = G1'G3'的LAOS-NLF，其中G1'-一阶傅立叶系数G3'-三阶傅里叶系数为至少1.7。 这种聚乙烯组合物可用于制造压力管，该压力管具有改善的耐压性和抗蠕变性并且不会发生流挂。 还公开了使用这种多峰聚乙烯组合物制造管的方法和包含这种多峰聚乙烯组合物的管。

    Process for producing multimodal polyethylene in-situ blends including ultra-high molecular weight fractions
    6.
    发明授权
    Process for producing multimodal polyethylene in-situ blends including ultra-high molecular weight fractions 有权
    用于生产包括超高分子量级分的多峰聚乙烯原位共混物的方法

    公开(公告)号：EP3037436B1

    公开(公告)日：2017-08-16

    申请号：EP14004367.0

    申请日：2014-12-22

    申请人： Borealis AG

    发明人： Dou, Qizheng ,  Albunia, Alexandra Romina ,  Liu, Yi

    IPC分类号： C08F2/00 ,  C08L23/04 ,  C08L23/06

    摘要： The present application relates to a process for producing a multimodal polyethylene composition comprising the steps of polymerizing a polyethylene fraction (A-1) having a weight average molecular weight Mw of equal to or more than 500 kg/mol to equal to or less than 10,000 kg/mol and a density of equal to or more than 915 kg/m 3 to equal to or less than 960 kg/m 3 in one reaction step and polymerizing a polyethylene fraction (A-2) having a lower weight average molecular weight Mw as polyethylene fraction (A-1) and a density of equal to or more than 910 kg/m 3 to equal to or less than 975 kg/m 3 in a second reaction step of a sequential multistage process wherein one of said polyethylene fractions is polymerized in the presence of the other of said polyethylene fractions to form a first polyethylene resin (A) having a weight average molecular weight Mw of equal to or more than 150 kg/mol to equal to or less than 1,500 kg/mol, and a density of equal to or more than 910 kg/m 3 to equal to or less than 975 kg/m 3 , wherein the weight average molecular weight Mw of the first polyethylene resin (A) is lower than the weight average molecular weight Mw of the polyethylene fraction (A-1), blending the first polyethylene resin (A) with a second polyethylene resin (B) having a weight average molecular weight Mw of equal to or more than 50 kg/mol to less than 500 kg/mol, and a density of equal to or more than 910 kg/m 3 to equal to or less than 970 kg/m 3 to form said multimodal polyethylene composition, wherein the multimodal polyethylene composition a melt flow rate MFR 5 (190°C, 5 kg) of 0.01 to 10 g/10 min and a density of equal to or more than 910 kg/m 3 to equal to or less than 970 kg/m 3 a polyethylene composition obtainable by said process and the polyethylene resin of said first polymerization step.

    摘要翻译： 本申请涉及一种制备多峰聚乙烯组合物的方法，该方法包括以下步骤：将重均分子量Mw等于或大于500kg / mol至等于或小于10000的聚乙烯组分（A-1） kg / mol，并且在一个反应​​步骤中密度等于或大于915kg / m 3至等于或小于960kg / m 3并聚合重均分子量Mw低的聚乙烯部分（A-2） 作为聚乙烯级分（A-1）和密度等于或大于910kg / m 3至等于或小于975kg / m 3的顺序多级方法的第二反应步骤，其中所述聚乙烯级分之一 在另一种所述聚乙烯部分的存在下聚合以形成重均分子量Mw等于或大于150kg / mol至等于或小于1,500kg / mol的第一聚乙烯树脂（A），和 等于或大于910kg / m 3的密度相等 （A）的重均分子量Mw低于聚乙烯组分（A-1）的重均分子量Mw，将第一聚乙烯树脂（A）和第二聚乙烯树脂 A）与重均分子量Mw等于或大于50kg / mol且小于500kg / mol且密度等于或大于910kg / m 3至至少50kg / m 3的第二聚乙烯树脂（B） 等于或小于970kg / m 3以形成所述多峰聚乙烯组合物，其中所述多峰聚乙烯组合物的熔体流动速率MFR 5（190℃，5kg）为0.01至10g / 10min且密度等于 或者通过所述方法可获得的聚乙烯组合物和所述第一聚合步骤的聚乙烯树脂超过910kg / m 3至等于或小于970kg / m 3。

    Blend of bimodal polyethylene with unimodal ultra high molecular weight polyethylene with improved mechanical properties
    7.
    发明公开
    Blend of bimodal polyethylene with unimodal ultra high molecular weight polyethylene with improved mechanical properties 有权
    双峰聚乙烯单峰的超高分子量混合改进的机械性能

    公开(公告)号：EP2907843A1

    公开(公告)日：2015-08-19

    申请号：EP14154935.2

    申请日：2014-02-13

    申请人： Borealis AG

    发明人： Albunia, Alexandra Romina ,  Dou, Qizheng ,  Liu, Yi

    IPC分类号： C08L23/04 ,  C08L23/06

    CPC分类号： C08L23/06 ,  C08J3/005 ,  C08J2323/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08L23/04 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/068 ,  C08L23/0815

    摘要： High density polyethylene blend, comprising
    (A) 55 to 99 wt% of a high density multimodal polyethylene component having a density of at least 930 kg/m3, and
    (B) 1 to 45 wt% of an ultra-high molecular weight polyethylene homo- or copolymer component having
    (i) an intrinsic viscosity of at least 15.0 dl/g
    (ii) an a nominal viscosity molecular weight (Mv) of at least 2.0*10 6 g/mol and
    (iii) a molecular weight of (M w ) of at least 0.7*10 6 g/mol,

    and wherein said blend has an MFR 21 of 0.05 to 10.0 g/10min and a density of at least 925 kg/m3.

    摘要翻译： 高密度聚乙烯共混物，包括（A）55至具有至少930千克/立方米，和（B）1至超高分子量聚乙烯均聚物的45％（重量）的密度的高密度多峰聚乙烯组分的99重量％的 - 具有或共聚物成分（i）至少15.0分升的特性粘度/克（ⅱ）一个标称粘度分子量（Mv）为至少2.0 * 10 6个克/摩尔和（iii）的分子量的（M 至少0.7 * 10 6个克/摩尔，和worin的w）的所述眩光具有的MFR 00:05 21〜10.0克/ 10分钟和至少925公斤/ m 3的密度。

    Disentangled high or ultrahigh molecular weight polyethylene prepared with Ziegler-Natta catalyst
    8.
    发明公开
    Disentangled high or ultrahigh molecular weight polyethylene prepared with Ziegler-Natta catalyst 审中-公开
    与齐格勒 - 纳塔催化剂制备，解缠结聚乙烯具有高或超高分子量

    公开(公告)号：EP2907829A1

    公开(公告)日：2015-08-19

    申请号：EP14154934.5

    申请日：2014-02-13

    申请人： Borealis AG

    发明人： Liu, Yi ,  Albunia, Alexandra Romina ,  Hjertberg, Thomas ,  Dou, Qizheng

    IPC分类号： C08F10/02 ,  C08L23/06

    摘要： Disentangled high or ultrahigh molecular weight polyethylene ((U)HMWPE) being produced with a Ziegler-Natta catalyst, characterized by (i) a factor for the normalized elastic modulus G' 0 /G' p of less than 0.95 determined in a dynamic time sweep measurement at 180°C with constant strain of 0.5% at fixed frequency of 10 rad/s for at least 3600s, whereby G' 0 is the elastic shear modulus measured at to directly after melting the sample and G'p is the maximum plateau modulus.

    摘要翻译： 解开高或超高分子量聚乙烯（（U）HMW PE）中产生用齐格勒 - 纳塔催化剂，通过（i），其特征为归一化的弹性模量G“0 / G”小于0.95确定性p在动态时间开采的一个因素 在至少3600秒，从而G“0是熔化样品和G之后直接在向测得的弹性剪切模量的” p的10弧度/秒的固定频率，用0.5％恒应变在180℃扫测量是最大高原 模量。

    PROCESS FOR PRODUCING LLDPE RESINS
    10.
    发明授权
    PROCESS FOR PRODUCING LLDPE RESINS 有权

    公开(公告)号：EP3109261B1

    公开(公告)日：2018-12-26

    申请号：EP15173364.9

    申请日：2015-06-23

    申请人： Borealis AG

    发明人： Albunia, Alexandra Romina ,  Tupe, Ravindra ,  Sumerin, Victor ,  Jamieson, John ,  Aho, Jani ,  Vahteri, Markku ,  Kela, Jarmo ,  Eckmayr, Renate

    IPC分类号： C08L23/08

    CPC分类号： C08F2/001 ,  C08L23/06 ,  C08L23/0815

    摘要： The present invention is directed to a process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a polymerisation catalyst. The resulting copolymer has a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 measured at 190 °C under 21.6 kg load of from 3 to 100 g/10 min. The process comprising the steps of: (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin wherein the molar ratio of hydrogen to ethylene in the fluid reaction mixture of the first polymerisation stage is from 200 to 50000 mol/kmol and the molar ratio of the first alpha-olefin to ethylene in the fluid reaction mixture of the first polymerisation stage is from 0 to 1500 mol/kmol, to produce a first homo- or copolymer of ethylene; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene to produce a polymer mixture comprising the first homo- or copolymer of ethylene and a second copolymer of ethylene, the polymer mixture having a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 of from 3 to 150 g/10 min; (C) recovering the polymer mixture. The polymerisation catalyst comprises an internal organic compound having the formula (I): wherein in the formula (I) R 1 to R 5 are the same or different and can be hydrogen, a linear or branched C1 to C8-alkyl group, or a C3-C8-alkylene group, or two or more of R 1 to R 5 can form a ring, and the two oxygen-containing rings are individually saturated or partially unsaturated or unsaturated.