Polymer compositions and pressure-resistant pipes made therefrom
    1.
    发明授权
    Polymer compositions and pressure-resistant pipes made therefrom 有权
    由其制成的聚合物组合物和耐压管

    公开(公告)号:US08557924B2

    公开(公告)日:2013-10-15

    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 SHI2.7/210 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SHI2.7 / 210为2至50.此外,多峰共聚物包含:(A)30至70重量% 基于组分(A)和(B)的组合量,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的α-烯烃的共聚物的低分子量乙烯聚合物 分子量为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。

    Propylene polymer pipes for pipelines
    4.
    发明授权
    Propylene polymer pipes for pipelines 有权
    用于管道的丙烯聚合物管道

    公开(公告)号:US08389089B2

    公开(公告)日:2013-03-05

    申请号:US13022312

    申请日:2011-02-07

    摘要: Single- or multilayer propylene polymer pipes and pipe components for pipelines with improved resistance to rapid crack propagation made from a propylene homopolymer with a melt index of 0.05 to 10 g/10 min at 230° C./2.16 kg or propylene block copolymer from 90.0 to 99.9 wt % of propylene and 0.1 to 10.0 wt % of a α-olefins with 2 or 4 to 18 carbon atoms with a melt index of 0.05 to 8 g/10 min at 230° C./2.16 kg or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, and the propylene polymer pipes for pipelines made from the β-nucleated propylene homopolymers have a rapid crack propagation characterized by a critical temperature of −5 to +40° C. and a critical pressure≧3 bar below the critical temperature and the propylene polymer pipes made from β-nucleated propylene block copolymers have a rapid crack propagation characterized by a critical temperature of −25 to 0° C. and a critical pressure≧3 bar below the critical temperature. The propylene polymer pipes with improved resistance to rapid crack propagation are suitable for the transportation of fluids and pressurized fluids such as natural gas, water and the like.

    摘要翻译: 用于管道的单层或多层丙烯聚合物管道和管道组件具有改进的抗快速裂纹扩展的能力,其由在230℃/ 2.16kg的熔体指数为0.05至10g / 10min的丙烯均聚物或来自90.0的丙烯嵌段共聚物 至99.9重量%的丙烯和0.1至10.0重量%的具有2或4至18个碳原子的α-烯烃,在230℃/ 2.16千克或其混合物下熔体指数为0.05至8克/ 10分钟,其中 丙烯均聚物或丙烯嵌段共聚物是共核聚丙烯聚合物,并且用于成核丙烯均聚物的管道用丙烯聚合物管具有快速的裂纹扩展,其特征在于临界温度为-5至+ 40℃。 并且临界温度低于3巴的临界压力,由全氟化丙烯嵌段共聚物制成的丙烯聚合物管具有快速的裂纹扩展,其临界温度为-25至0℃,临界压力≥ 3巴低于临界温度。 具有改善的抗快速裂纹扩展性能的丙烯聚合物管适用于输送流体和加压流体,例如天然气,水等。

    Pressureless pipe comprising a multimodal polyethylene composition with an inorganic filler
    5.
    发明授权
    Pressureless pipe comprising a multimodal polyethylene composition with an inorganic filler 有权
    包括具有无机填料的多峰聚乙烯组合物的无压管

    公开(公告)号:US08372499B2

    公开(公告)日:2013-02-12

    申请号:US12064088

    申请日:2006-08-02

    IPC分类号: B29D22/00 B29D23/00 B32B1/08

    摘要: The present invention relates to a pipe or a supplementary pipe article comprising a polyethylene composition comprising a base resin which comprises (A) a first ethylene homo- or copolymer fraction, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower average molecular weight than fraction (B), the base resin has a flexural modulus determined according to ISO 178 of 1000 MPa or higher, and the composition further comprises (C) an inorganic mineral filler, wherein inorganic mineral filler (C) is present in the composition in an amount of 1 to 70 wt. %, and to the use of said composition for the production of a pipe or a supplementary pipe article.

    摘要翻译: 本发明涉及一种包含聚乙烯组合物的管或辅助管制品,所述聚乙烯组合物包含基础树脂,其包含(A)第一乙烯均聚物或共聚物部分,和(B)第二乙烯均聚物或共聚物部分,其中部分 A)具有比分数(B)更低的平均分子量,基础树脂具有根据ISO 178测定的挠曲模量为1000MPa或更高,组合物还包含(C)无机矿物填料,其中无机矿物填料 C)以1〜70重量%的量存在于组合物中。 %,以及所述组合物用于生产管道或辅助管道制品的用途。

    Pressureless Polymer Pipe
    8.
    发明申请
    Pressureless Polymer Pipe 有权
    无压聚合物管

    公开(公告)号:US20070207281A1

    公开(公告)日:2007-09-06

    申请号:US11547049

    申请日:2005-03-31

    IPC分类号: C03C17/32

    摘要: A pressureless pipe and polymer composition for making such a pipe as well as the use of the polymer composition for pressureless pipes and supplementary parts, are disclosed. The polymer composition is characterised in that the polymer comprises a multimodal ethylene polymer including a copolymer of ethylene and a C4-C10 &agr; -olefin comonomer; the ethylene polymer has a total density of 953-958 kg/m3 and a MFR5 of 0.2-2.0 g/10 min; the ethylene polymer has a modulus of elasticity, determined according to ISO 178 of 1300-1700 MPa; the ethylene polymer has a resistance to slow crack growth, determined according to ASTM F 1473 of more than 1.5 hrs.

    摘要翻译: 公开了一种用于制造这种管子的无压管和聚合物组合物以及用于无压管和辅助部件的聚合物组合物的用途。 聚合物组合物的特征在于聚合物包括多峰乙烯聚合物,其包括乙烯和C 4 -C 10α-烯烃共聚单体的共聚物; 乙烯聚合物的总密度为953-958kg / m 3,MFR 5> 0.2-2.0g / 10min; 乙烯聚合物具有根据ISO 178为1300-1700MPa测定的弹性模量; 乙烯聚合物具有耐缓慢裂纹生长,根据ASTM F 1473测定超过1.5小时。

    Polymer compositions having improved homogeneity and odour, a method for making them and pipes made thereof
    10.
    发明授权
    Polymer compositions having improved homogeneity and odour, a method for making them and pipes made thereof 有权
    具有改进的均匀性和气味的聚合物组合物,制造它们的方法和由其制成的管

    公开(公告)号:US08530580B2

    公开(公告)日:2013-09-10

    申请号:US12995978

    申请日:2009-05-25

    IPC分类号: C08L23/08 C08F4/6592

    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 960 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 SHI2.7/210 of from 2 to 50. The compositions further have a level of volatile compounds of at most 100 ppm by weight and/or a homogeneity rating of at most 3. In addition the multimodal copolymer comprises: (A) from 35 to 60% 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 40 to 65% 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 935 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960kg / 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SHI2.7 / 210为2至50.组合物还具有至多100重量ppm的挥发性化合物和/ 或均一性等级至多为3.另外,多峰共聚物包含:(A)35至60重量%,基于组分(A)和(B)的组合量,选择低分子量乙烯聚合物 来自乙烯均聚物和乙烯与一种或多种具有4至10个碳原子的α-烯烃的共聚物,其重均分子量为5000至100000g / mol,密度为945至975kg / m 3; 和(B)40至65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890〜935kg / m 3。