Multimodal Polyethylene Resin for Pipe Made by a Single-site Catalyst
    12.
    发明申请
    Multimodal Polyethylene Resin for Pipe Made by a Single-site Catalyst 有权
    由单点催化剂制成的管道多峰聚乙烯树脂

    公开(公告)号:US20110111152A9

    公开(公告)日:2011-05-12

    申请号:US12517103

    申请日:2007-11-21

    IPC分类号: C08L23/04 B32B1/08

    摘要: The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises a. an ethylene copolymer as fraction (A), and b. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst. (SSC) is used in the polymerisation of at least one of fractions (A) and (B), and the base resin has (i) a density of below 940 kg/m3, and (ii) a MFR2 at 190 ° C./2.16 kg of 0.001 to 10 g/10 min, and the composition has (iii) a flexural modulus of from 300 to 820 MPa, and to a process for the production of such a composition, and to a pipe produced from such a composition.

    摘要翻译: 本发明涉及包含聚乙烯基础树脂的聚乙烯组合物,其包含a。 作为级分(A)的乙烯共聚物,和b。 作为级分(B)的乙烯均聚物或共聚物,其中馏分(A)具有比级分(B)低的分子量,其中聚乙烯基础树脂可以在其中单位点催化剂的聚合方法中获得。 (SSC)用于部分(A)和(B)中的至少一种的聚合,并且基础树脂具有(i)低于940kg / m 3的密度和(ii)在190℃下的MFR 2。 /2.16kg为0.001〜10g / 10分钟,组成为(iii)弯曲弹性模量为300〜820MPa,制造该组合物的方法,以及由该组合物制造的管 。

    POLYETHYLENE COMPOSITION FOR PRESSURE PIPES WITH ENHANCED FLEXIBILITY
    13.
    发明申请
    POLYETHYLENE COMPOSITION FOR PRESSURE PIPES WITH ENHANCED FLEXIBILITY 有权
    用于具有增强柔性的压力管的聚乙烯组合物

    公开(公告)号:US20100178443A1

    公开(公告)日:2010-07-15

    申请号:US12440637

    申请日:2007-09-28

    IPC分类号: C08L23/06 C08F110/02 B32B1/08

    摘要: The present invention relates to a polyethylene composition comprising a base resin which comprises (a) an ethylene homo- or copolymer fraction (A); and (b) an ethylene homo- or copolymer fraction (B), wherein (i) fraction (A) has a lower average molecular weight than fraction (B); (ii) the base resin has a density of 940 to 947 kg/m3; (iii) the polyethylene composition has an MFR5 of 0.1 to 0.5 g/10 min; and (iv) the polyethylene composition has an SHI(2.7/210) of 10 to 49. Furthermore, the present invention relates to an article, preferably a pipe comprising said composition and to the use of said composition for the production of an article, preferably a pipe.

    摘要翻译: 本发明涉及包含基础树脂的聚乙烯组合物,其包含(a)乙烯均聚物或共聚物部分(A); 和(b)乙烯均聚物或共聚物部分(B),其中(i)级分(A)的平均分子量低于级分(B); (ii)基础树脂的密度为940至947kg / m 3; (iii)聚乙烯组合物的MFR 5为0.1〜0.5g / 10分钟; 和(iv)聚乙烯组合物具有10至49的SHI(2.7 / 210)。此外,本发明涉及一种制品,优选包括所述组合物的管和用于生产制品的所述组合物的用途, 优选管。

    Master batch
    14.
    发明授权
    Master batch 有权
    主批

    公开(公告)号:US06376595B1

    公开(公告)日:2002-04-23

    申请号:US09696138

    申请日:2000-10-25

    申请人: Magnus Palmlöf

    发明人: Magnus Palmlöf

    IPC分类号: C08K304

    摘要: A master batch for the production of cross-linked polymer pipes is described. The master batch comprises carbon black and a polymer carrier consisting of a Ziegler-Natta catalyzed polyethylene with a density of at least 0.940 g/cm3. A cross-linkable polymer composition comprising the master batch and a chromium catalyzed polyethylene base polymer, and a cross-linked polyethylene pipe made by cross-linking the cross-linkable polymer composition are also described.

    摘要翻译: 描述了用于生产交联聚合物管的母料。 母料包含炭黑和由密度为至少0.940g / cm 3的齐格勒 - 纳塔催化聚乙烯组成的聚合物载体。 还描述了包含母料和铬催化的聚乙烯基础聚合物的交联聚合物组合物和通过交联可交联聚合物组合物制备的交联聚乙烯管。

    Polyethylene composition for pressure pipes with enhanced flexibility
    16.
    发明授权
    Polyethylene composition for pressure pipes with enhanced flexibility 有权
    用于压力管的聚乙烯组合物具有增强的柔性

    公开(公告)号:US08367763B2

    公开(公告)日:2013-02-05

    申请号:US12440637

    申请日:2007-09-28

    IPC分类号: C08K5/00 B29D23/00

    摘要: The present invention relates to a polyethylene composition comprising a base resin which comprises (a) an ethylene homo- or copolymer fraction (A); and (b) an ethylene homo- or copolymer fraction (B), wherein (i) fraction (A) has a lower average molecular weight than fraction (B); (ii) the base resin has a density of 940 to 947 kg/m3; (iii) the polyethylene composition has an MFR5 of 0.1 to 0.5 g/10 min; and (iv) the polyethylene composition has an SHI(2.7/210) of 10 to 49. Furthermore, the present invention relates to an article, preferably a pipe comprising said composition and to the use of said composition for the production of an article, preferably a pipe.

    摘要翻译: 本发明涉及包含基础树脂的聚乙烯组合物,其包含(a)乙烯均聚物或共聚物部分(A); 和(b)乙烯均聚物或共聚物部分(B),其中(i)级分(A)的平均分子量低于级分(B); (ii)基础树脂的密度为940至947kg / m 3; (iii)聚乙烯组合物的MFR 5为0.1〜0.5g / 10分钟; 和(iv)聚乙烯组合物具有10至49的SHI(2.7 / 210)。此外,本发明涉及一种制品,优选包括所述组合物的管和用于生产制品的所述组合物的用途, 优选管。

    Polymer Compositions and Pressure-Resistant Pipes Made Therefrom
    18.
    发明申请
    Polymer Compositions and Pressure-Resistant Pipes Made Therefrom 有权
    聚合物组合物和耐压管道

    公开(公告)号:US20110108121A1

    公开(公告)日:2011-05-12

    申请号:US12995604

    申请日:2009-05-25

    摘要: The present invention deals with polymer compositions suitable for making pipes. The compositions comprise a multimodal copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms wherein the multimodal ethylene copolymer has a density of from 924 to 935 kg/m3, a melt index MFR5 of from 0.5 to 6.0 g/10 min, a melt index MFR2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI27/210 of from 2 to 50. In addition the multimodal copolymer comprises: (A) from 30 to 70% by weight, based on the combined amount of components (A) and (B), of a low molecular weight ethylene polymer selected from ethylene homopolymer and a copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms and having a weight average molecular weight of from 5000 to 100000 g/mol and a density of from 945 to 975 kg/m3; and (B) from 30 to 70% by weight, based on the combined amount of components (A) and (B), of a high molecular weight copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms and having a weight average molecular weight of from 100000 to 1000000 g/mol and a density of from 890 to 929 kg/m3.

    摘要翻译: 本发明涉及适于制造管道的聚合物组合物。 组合物包含乙烯和一种或多种具有4至10个碳原子的α-烯烃的多峰共聚物,其中多峰乙烯共聚物的密度为924至935kg / m 3,熔体指数MFR 5为0.5至6.0g / 10分钟,熔体指数MFR 2为0.1至2.0g / 10min,剪切稀化指数SHI27 / 210为2至50.此外,多峰共聚物包含:(A)30至70重量%,基于 选自乙烯均聚物和乙烯与一种或多种具有4至10个碳原子并且具有重均分子量的α-烯烃的共聚物的低分子量乙烯聚合物的组分(A)和(B)的组合量 为5000至100000g / mol,密度为945至975kg / m 3; 和(B)30至70重量%,基于组分(A)和(B)的组合量,乙烯和一种或多种具有4至10个碳原子的α-烯烃的高分子量共聚物和 重均分子量为100000〜1000000g / mol,密度为890〜929kg / m 3。

    Polyethylene composition for water pipes with improved chlorine resistance
    20.
    发明授权
    Polyethylene composition for water pipes with improved chlorine resistance 有权
    具有改善耐氯性能的水管聚乙烯组合物

    公开(公告)号:US08519034B2

    公开(公告)日:2013-08-27

    申请号:US13120929

    申请日:2009-12-17

    CPC分类号: C08K5/13 C08K5/1545 C08L23/02

    摘要: The present invention is directed to the use of compound (A) and compound (B) in a polyethylene composition for increasing the lifetime of a pipe made of said polyethylene composition which is in permanent contact with chlorinated water, wherein compound (A) has the following formula (I): wherein—R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups, X1, X2, and X3 independently are H or OH, with the proviso that at least one of X1, X2, and X3 is OH, and the entire molecule does not comprise an ester group; wherein compound (B) has the following formula (II): wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and wherein the base resin of said polyethylene composition consists of a polyethylene homo- or copolymer.

    摘要翻译: 本发明涉及在聚乙烯组合物中使用化合物(A)和化合物(B)),以增加由与氯化水永久接触的所述聚乙烯组合物制成的管的使用寿命,其中化合物(A)具有 下式(I):其中-R 6,R 7和R 8分别是可以包含OH-基团的未取代或取代的脂族或芳族烃基,X 1,X 2和X 3独立地是H或OH,条件是至少 X1,X2和X3之一是OH,整个分子不包含酯基; 其中化合物(B)具有下式(II):其中R 1,R 2,R 3,R 4和R 5独立地是H或可以包含杂原子的未取代或取代的脂族或芳族烃基,并且其中所述 聚乙烯组合物由聚乙烯均聚物或共聚物组成。