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    • 3. 发明公开
    • A NEW CROSSLINKED POLYMER COMPOSITION, STRUCTURED LAYER AND CABLE
    • 一种新的交联聚合物组合物,结构层和电缆
    • EP3183278A1
    • 2017-06-28
    • EP15754164.0
    • 2015-08-19
    • Borealis AG
    • SMEDBERG, AnnikaENGLUND, VillgotHAGSTRAND, Per-OlaERIKSSON, VirginieSILFVERBERG, Emy
    • C08F210/18B32B27/32H01B3/44
    • The present invention relates to a crosslinked polymer composition comprising a crosslinked polyolefin, wherein the polymer composition comprises, prior to crosslinking, a polyolefin and peroxide which is in an amount of less than 35 mmol —O—O-/kg polymer composition, characterized in that the crosslinked polymer composition has been in a direct contact with a semiconductive composition for 24 h at 70° C., and that the crosslinked polymer composition thereafter has an electrical DC-conductivity of 150 fS/m or less, wherein the electrical DC-conductivity is measured in accordance with “DC conductivity method”, as described under “Determination methods”, on a plaque of the crosslinked polymer composition at 70° C. and 30 kV/mm mean electric field from a non-degassed and 1 mm thick plaque sample of the crosslinked polymer composition; a layered structure, cable, e.g. a power cable, use of the crosslinked polymer composition and the structured layer, both, for producing a crosslinked power cable, e.g., a cross linked direct current (DC) power cable; and a process for producing a cable.
    • 本发明涉及包含交联聚烯烃的交联聚合物组合物,其中所述聚合物组合物在交联之前包含少于35mmol-100- / kg聚合物组合物的聚烯烃和过氧化物,其特征在于所述 交联聚合物组合物在70℃下与半导体组合物直接接触24小时,并且此后交联聚合物组合物具有150fS / m或更小的电直流电导率,其中电直流电导率在 按照“测定方法”中所述的“DC电导率法”,在交联聚合物组合物的板上,在70℃和30kV / mm平均电场下,从交联的未脱气和1mm厚的板状样品 聚合物组成; 分层结构,例如电缆。 电力电缆,交联聚合物组合物和结构层的用途,两者都用于制造交联电力电缆,例如交联直流(DC)电力电缆; 和一种生产电缆的方法。