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    • 2. 发明授权
    • POLYMER COMPOSITIONS HAVING IMPROVED HOMOGENEITY AND ODOUR, A METHOD FOR MAKING THEM AND PIPES MADE THEREOF
    • 根据上述制造由其生产PIPES改进的均匀性和改善的气味,和方法聚合物组合物
    • EP2285893B1
    • 2011-09-21
    • EP09757404.0
    • 2009-05-25
    • Borealis AG
    • BÄCKMAN, MatsEK, Carl-GustavPAKKANEN, AnneliPALMLÖF, Magnus
    • C08L23/00
    • C08L23/06C08L23/0815C08L2205/02Y10T428/139C08L2666/06
    • 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/m
      3 , a melt index MFR
      5 of from 0.5 to 6.0 g/10 min, a melt index MFR
      2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI
      27/210 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/m
      3 ; 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/m
      3 .
    • 本发明的具有适合于制造管的聚合物组合物的交易。 组合物包含乙烯和一种或多种α-烯烃具有4至worin所述多峰乙烯共聚物具有从924至960千克/米3,熔融指数MFR 5为0.5至6.0的密度10个碳原子的多峰共聚物 克/ 10分钟,熔体指数MFR 2为0.1〜2.0克/ 10分钟并且剪切变稀指数SHI 2.7 / 210的为2〜50的组合物还具有的挥发性化合物的至多100ppm(重量)的水平 和/或至多为3均匀性的评价除所述多峰共聚物包含:35至60重量%(A),基于组分(A)和(B)的组合量,低分子量的乙烯的 从乙烯均聚物和乙烯的共聚物和一种或多种具有4至10个碳原子并具有从5000至100000克/摩尔的重均分子量和由945 975千克/立方米的密度多种α-烯烃选择的聚合物 3; 和(B)40至重量65%,基于高分子量的共聚物乙烯与一种或多种α-烯烃具有4至10个碳原子的组分(A)和(B),的组合量和 具有100,000至1,000,000克/摩尔的重均分子量和890至935kg / m 3的密度。
    • 6. 发明公开
    • POLYMER COMPOSITIONS AND PRESSURE-RESISTANT PIPES MADE THEREFROM
    • 聚合物组合物和由其制成的耐压管道
    • EP2285897A1
    • 2011-02-23
    • EP09757406.5
    • 2009-05-25
    • Borealis AG
    • BÄCKMAN, MatsEK, Carl-GustavPAKKANEN, AnneliPALMLÖF, Magnus
    • C08L23/08
    • F16L9/12C08L23/04C08L23/06C08L23/0815C08L2314/06Y10T137/0318Y10T428/139C08L2666/06
    • 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/m
      3 , a melt index MFR
      5 of from 0.5 to 6.0 g/10 min, a melt index MFR
      2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI
      2.7/210 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/m
      3 ; 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/m
      3 .
    • 本发明涉及适用于制造管道的聚合物组合物。 该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6.0 g / 10min,熔体指数MFR 2为0.1-2.0g / 10min,剪切稀释指数SHI 2.7 / 210为2-50。此外,多峰共聚物包含:(A)30-70% 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个碳原子的α-烯烃的共聚物的低分子量乙烯聚合物的重量 重均分子量为5000至100000g / mol,密度为945至975kg / m 3; 和(B)基于组分(A)和(B)的总量,30-70重量%的乙烯和一种或多种具有4-10个碳原子的α-烯烃的高分子量共聚物和 其重均分子量为100000至1000000克/摩尔,密度为890至929千克/立方米。