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    PROCESS FOR COATING A PIPE WITH HIGH THROUGHPUT USING MULTIMODAL ETHYLENE COPOLYMER, AND COATED PIPES OBTAINED THEREOF
    2.
    发明申请
    PROCESS FOR COATING A PIPE WITH HIGH THROUGHPUT USING MULTIMODAL ETHYLENE COPOLYMER, AND COATED PIPES OBTAINED THEREOF 有权
    使用多模乙烯共聚物涂覆高通量管的方法及其所得到的涂层管

    公开(公告)号：US20110120587A1

    公开(公告)日：2011-05-26

    申请号：US12808357

    申请日：2008-12-09

    申请人： Martin Anker ,  Siw Bodil Fredriksen ,  Pal Christian Bentzrod ,  Mats Backman ,  Leif Leiden ,  Markku Vahteri ,  Petri Rekonen

    发明人： Martin Anker ,  Siw Bodil Fredriksen ,  Pal Christian Bentzrod ,  Mats Backman ,  Leif Leiden ,  Markku Vahteri ,  Petri Rekonen

    IPC分类号： F16L9/14 ,  B05D3/02

    CPC分类号： C09D123/06 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2666/06

    摘要： The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3. Further, the multimodal ethylene copolymer comprises the multimodal ethylene copolymer comprises from 49 to 59% based on the weight of the multimodal ethylene copolymer a low molecular weight ethylene homopolymer component, said low molecular weight ethylene homopolymer having a weight average molecular weight of from 5000 g/mol to 70000 g/mol; and from 51 to 41% based on the weight of the multimodal ethylene copolymer a high molecular weight ethylene copolymer component, said high molecular weight ethylene copolymer having a weight average molecular weight of from 100000 g/mol to 700000 g/mol. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

    摘要翻译： 本发明涉及具有多峰聚乙烯层的涂覆管。 多峰乙烯共聚物是乙烯与一种或多种具有4-10个碳原子的α-烯烃共聚单体的共聚物，其重均分子量为70000g / mol至250000g / mol，重均分子量 数均分子量Mw / Mn为15-50，熔体指数MFR2为0.05g / 10min至5g / 10min，熔体指数MFR5为0.5-10g / 10min， 密度为930kg / m至955kg / m 3。 此外，多峰乙烯共聚物包含多峰乙烯共聚物，其包含基于多峰乙烯共聚物的重量的49-59％的低分子量乙烯均聚物组分，所述低分子量乙烯均聚物的重均分子量为5000g / mol至70000g / mol; 和基于多峰乙烯共聚物重量的51至41％的高分子量乙烯共聚物组分，所述高分子量乙烯共聚物的重均分子量为100000g / mol至700000g / mol。 管道可以高产量和良好的生产经济性涂层。 涂层具有良好的机械性能。

    Coated pipe with high throughput using multimodal ethylene copolymer
    4.
    发明授权
    Coated pipe with high throughput using multimodal ethylene copolymer 有权
    使用多峰乙烯共聚物的高通量的涂层管

    公开(公告)号：US08623482B2

    公开(公告)日：2014-01-07

    申请号：US12808357

    申请日：2008-12-09

    申请人： Martin Anker ,  Siw Bodil Fredriksen ,  Pal Christian Bentzrod ,  Mats Backman ,  Leif Leiden ,  Markku Vahteri ,  Petri Rekonen

    发明人： Martin Anker ,  Siw Bodil Fredriksen ,  Pal Christian Bentzrod ,  Mats Backman ,  Leif Leiden ,  Markku Vahteri ,  Petri Rekonen

    IPC分类号： B32B1/08 ,  B32B15/085 ,  F16L9/14 ,  B05D7/00

    CPC分类号： C09D123/06 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2666/06

    摘要： The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3. Further, the multimodal ethylene copolymer comprises the multimodal ethylene copolymer comprises from 49 to 59% based on the weight of the multimodal ethylene copolymer a low molecular weight ethylene homopolymer component, said low molecular weight ethylene homopolymer having a weight average molecular weight of from 5000 g/mol to 70000 g/mol; and from 51 to 41% based on the weight of the multimodal ethylene copolymer a high molecular weight ethylene copolymer component, said high molecular weight ethylene copolymer having a weight average molecular weight of from 100000 g/mol to 700000 g/mol. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

    摘要翻译： 本发明涉及具有多峰聚乙烯层的涂覆管。 多峰乙烯共聚物是乙烯与一种或多种具有4-10个碳原子的α-烯烃共聚单体的共聚物，其重均分子量为70000g / mol至250000g / mol，重均分子量 数均分子量Mw / Mn为15-50，熔体指数MFR2为0.05g / 10min至5g / 10min，熔体指数MFR5为0.5-10g / 10min， 密度为930kg / m至955kg / m 3。 此外，多峰乙烯共聚物包含多峰乙烯共聚物，其包含基于多峰乙烯共聚物的重量的49-59％的低分子量乙烯均聚物组分，所述低分子量乙烯均聚物的重均分子量为5000g / mol至70000g / mol; 和基于多峰乙烯共聚物重量的51至41％的高分子量乙烯共聚物组分，所述高分子量乙烯共聚物的重均分子量为100000g / mol至700000g / mol。 管道可以高产量和良好的生产经济性涂层。 涂层具有良好的机械性能。

    Multi-Stage Process for Producing Polyethylene with Lowered Gel Formation
    9.
    发明申请
    Multi-Stage Process for Producing Polyethylene with Lowered Gel Formation 有权
    用于生产具有降低凝胶形成的聚乙烯的多阶段方法

    公开(公告)号：US20110288237A1

    公开(公告)日：2011-11-24

    申请号：US13129800

    申请日：2009-10-16

    申请人： Bill Gustafsson ,  Jari Hatonen ,  Petri Rekonen ,  Markku Vahteri ,  Siw Bodil Fredriksen ,  Arild Follestad ,  Karl Isak Skau

    发明人： Bill Gustafsson ,  Jari Hatonen ,  Petri Rekonen ,  Markku Vahteri ,  Siw Bodil Fredriksen ,  Arild Follestad ,  Karl Isak Skau

    IPC分类号： C08L23/08 ,  C08L23/20

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/03 ,  C08F2/34 ,  C08F2/001 ,  C08F2/14 ,  C08L2666/06 ,  C08L2666/02 ,  C08F2500/02 ,  C08F2500/12 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/07

    摘要： The present inventions relates to a process for producing polyethylene compositions comprising polymerising polyethylene resins in a cascaded multi-stage reaction in which the reaction steps are performed in at least two slurry phase reactors (A) and (B) and at least one gas phase reactor (C) which are arranged in series in any order wherein in reactor (A) a low molecular weight ethylene homo- or copolymer fraction having a MFR2 of 100 to 2000 g/10 min, in reactor (B) a low molecular weight ethylene homo- or copolymer fraction having an MFR2 of 100 to 2000 g/10 min, and in reactor (C) a high molecular weight ethylene copolymer fraction are polymerised, and further comprising a compounding step after polymerisation, wherein the final polyethylene composition has a MFR21 of 3 to 50 g/10 min, the melt flow rates being determined according to ISO 1133, a multimodal polymer composition comprising a polyethylene resin comprising (i) a first low molecular weight ethylene homo- or copolymer fraction having a MFR2 of 100 to 2000 g/10 min, (ii) a second low molecular weight ethylene homo- or copolymer fraction having a MFR2 of 100 to 2000 g/10 min, and (iii) a high molecular weight ethylene copolymer fraction, wherein the polyethylene resin has a MFR21 of 3 to 50 g/10 min and white spots are dispersed within the final composition with a white spot dispersion of less than 4.5 after a single compounding step, the melt flow rates being determined according to ISO 1133 and the white spot test according to ISO 18553, and the use of at least two slurry phase reactors for the polymerisation of a low molecular weight polyethylene fraction for improving the homogeneity of a multimodal polyethylene resin.

    摘要翻译： 本发明涉及一种生产聚乙烯组合物的方法，其包括在级联多步反应中聚合聚乙烯树脂，其中反应步骤在至少两个淤浆相反应器（A）和（B）中进行，并且至少一个气相反应器 （C），其以任何顺序排列，其中在反应器（A）中具有MFR 2为100至2000g / 10min的低分子量乙烯均聚物或共聚物部分，在反应器（B）中，低分子量乙烯均聚物 - 或MFR2为100〜2000g / 10分钟的共聚物部分，在反应器（C）中聚合高分子量乙烯共聚物部分，进一步包括聚合后的配混步骤，其中最终的聚乙烯组合物的MFR 21为 3至50g / 10min，熔体流动速率根据ISO 1133确定，多元聚合物组合物包含聚乙烯树脂，其包含（i）第一低分子量乙烯均聚物或共聚物fr MFR 2为100〜2000g / 10分钟的动作，（ii）MFR 2为100〜2000g / 10分钟的第二低分子量乙烯均聚物或共聚物部分，（iii）高分子量乙烯共聚物部分 其中聚乙烯树脂的MFR 21为3〜50g / 10min，白色斑点分散在最终组合物中，在单一配混步骤后，白点分散度小于4.5，熔体流动速率根据ISO 1133 和根据ISO 18553的白点试验，以及使用至少两个浆料相反应器来聚合低分子量聚乙烯级分以改善多峰聚乙烯树脂的均匀性。