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    • 34. 发明授权
    • Coated pipe with high throughput using multimodal ethylene copolymer
    • 使用多峰乙烯共聚物的高通量的涂层管
    • US08623482B2
    • 2014-01-07
    • US12808357
    • 2008-12-09
    • Martin AnkerSiw Bodil FredriksenPal Christian BentzrodMats BackmanLeif LeidenMarkku VahteriPetri Rekonen
    • Martin AnkerSiw Bodil FredriksenPal Christian BentzrodMats BackmanLeif LeidenMarkku VahteriPetri Rekonen
    • B32B1/08B32B15/085F16L9/14B05D7/00
    • C09D123/06C08L23/0815C08L2205/025C08L2308/00C08L2666/06
    • 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.
    • 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。
    • 39. 发明授权
    • Cable with a coating layer made from a waste material
    • 带有由废料制成的涂层的电缆
    • US07672555B2
    • 2010-03-02
    • US10573595
    • 2003-09-30
    • Luca CastellaniAndrea PelizzoniFranco PeruzzottiEnrico Albizzati
    • Luca CastellaniAndrea PelizzoniFranco PeruzzottiEnrico Albizzati
    • G02B6/44
    • H01B3/441C08L23/06C08L2205/02C09D123/06C08L2666/06
    • A cable including at least one core having at least one transmissive element and at least one coating layer made from a coating material, wherein the coating material has at least a first polyethylene having a density not higher than 0.940 g/cm3, preferably not lower than 0.910 g/cm3, more preferably 0.915 g/cm3 to 0.938 g/cm3, and a Melt Flow Index (MFI), measured at 190° C. with a load of 2.16 Kg according to ASTM D1238-00 standard, of 0.05 g/10′ to 2 g/10′, preferably 0.1 g/10′ to 1 g/10′; the first polyethylene being obtained from a waste material; at least a second polyethylene having a density higher than 0.940 g/cm3, preferably not higher than 0.970 g/cm3, more preferably 0.942 g/cm3 to 0.965 g/cm3. Preferably, the coating layer is a cable external layer having a protective function.
    • 一种电缆,包括至少一个具有至少一个透射元件的芯和由涂层材料制成的至少一个涂层,其中所述涂料至少具有密度不高于0.940g / cm 3的第一聚乙烯,优选不低于 0.910g / cm 3,更优选0.915g / cm 3至0.938g / cm 3,以及根据ASTM D1238-00标准,在190℃,2.16Kg负荷下测量的熔体流动指数(MFI)为0.05g / 10'至2g / 10',优选0.1g / 10'至1g / 10'; 所述第一聚乙烯是从废料获得的; 至少第二聚乙烯的密度高于0.940g / cm3,优选不高于0.970g / cm3,更优选为0.942g / cm3至0.965g / cm3。 优选地,涂层是具有保护功能的电缆外层。