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    • 4. 发明公开
    • Polyethylene multi-filament yarn
    • 的聚乙烯,Multifilamentgarn
    • EP1746187A1
    • 2007-01-24
    • EP05076648.4
    • 2005-07-18
    • DSM IP Assets B.V.
    • Simmelink, Joseph Arnold Paul Mariavan der Werff, HarmMarissen, Roelof
    • D01F6/04D01F1/10
    • D01F6/04D01F1/10Y10T442/671
    • The invention relates to a process for making a polyethylene multi-filament yarn comprising the steps of
      a) spinning multiple filaments from a solution comprising between 0.5 and 30 mass% of ultra high molecular weight polyethylene in a solvent;
      b) cooling the filament obtained to form gel filaments;
      c) removing at least partly the solvent from the gel filaments;
      d) drawing the filaments in at least one drawing step with a draw ration of more than 15 before, during or after removing solvent to a strength of at least 1 GPa, characterized in that the solution further comprises between 0.1 and 7 mass% of a sorbitol derivative.
      The invention further relates to a high performance polyethylene multi-filament yarn having a strength of at least 1 GPa, characterized in that the yarn comprises between 0.1 and 5 mass% of a sorbitol derivative.
    • 本发明涉及一种制备聚乙烯复丝纱线的方法,包括以下步骤:a)在溶剂中从含有0.5至30质量%的超高分子量聚乙烯的溶液中纺出多根长丝; b)冷却获得的细丝以形成凝胶丝; c)至少部分地从凝胶丝中除去溶剂; d)在去除溶剂之前,期间或之后,在至少一个拉伸步骤中拉丝长度大于15的拉丝步骤,其强度至少为1GPa,其特征在于,所述溶液还包含0.1至7质量%的 山梨醇衍生物。 本发明还涉及强度至少为1GPa的高性能聚乙烯复丝,其特征在于,所述纱线含有0.1〜5质量%的山梨糖醇衍生物。