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    Process for making high-performance polyethylene multifilament yarn
    8.
    发明授权
    Process for making high-performance polyethylene multifilament yarn 有权
    制造高性能聚乙烯复丝纱的方法

    公开(公告)号：US07618706B2

    公开(公告)日：2009-11-17

    申请号：US10584285

    申请日：2004-12-23

    申请人： Joseph Arnold Paul Maria Simmelink ,  Jacobus Johannes Mencke ,  Martinus Johannes Nicolaas Jacobs ,  Roeloef Marissen

    发明人： Joseph Arnold Paul Maria Simmelink ,  Jacobus Johannes Mencke ,  Martinus Johannes Nicolaas Jacobs ,  Roeloef Marissen

    IPC分类号： D02G3/00

    CPC分类号： F41H5/0478 ,  A61L17/04 ,  A61L27/16 ,  C08F10/02 ,  C08L23/06 ,  C08L53/02 ,  C08L2203/12 ,  D01D4/02 ,  D01D5/18 ,  D01F6/04 ,  D02G3/02 ,  D07B1/025 ,  D07B2205/2014 ,  D07B2801/10 ,  D10B2321/0211 ,  F41H5/0471 ,  F41H5/0485 ,  Y10T428/24041 ,  Y10T428/24058 ,  Y10T428/24124 ,  Y10T428/249921 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2967 ,  Y10T442/2615 ,  Y10T442/2623

    摘要： The invention relates to a process for making high-performance polyethylene multi-filament yarn comprising the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DRfluid=DRsp*DRag of at least 150, wherein DRsp is the draw ratio in the spinholes and DRag is the draw ratio in the air-gap, with DRsp being greater than 1 and DRag at least 1. The invention further relates to a high-performance polyethylene multifilament yarn, and to semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites.

    摘要翻译： 本发明涉及一种制备高性能聚乙烯复丝纱线的方法，包括以下步骤：a）将超高摩尔质量的聚乙烯溶液制成溶剂; b）将溶液通过包含至少5个喷孔的平板纺丝到气隙中以形成流体细丝，同时施加拉伸比DR流体; c）冷却流体细丝以形成含溶剂的凝胶细丝; d）从长丝中至少部分去除溶剂; 以及e）在所述溶剂去除之前，期间和/或之后至少一个步骤中拉丝长丝，同时施加至少为4的拉伸比DRsolid，其中在步骤b）中，每个纺丝孔包括特定尺寸的收缩区和下游 直径Dn的区域和长度Dn，Ln / Dn为0至至多25，导致拉伸比DRfluid = DRsp * DRag至少为150，其中DRsp是喷丝孔中的拉伸比，并且DRag是拉伸比 在气隙中，DRSP大于1，并且DRag至少为1.本发明还涉及高性能聚乙烯复丝纱线，以及含有所述纱线的半成品或最终用途产品，特别是绳索和弹道 耐复合材料。

    Oven for drawing fibres at elevated temperature
    9.
    发明授权
    Oven for drawing fibres at elevated temperature 有权
    烤箱用于在高温下拉伸纤维

    公开(公告)号：US07501082B2

    公开(公告)日：2009-03-10

    申请号：US10398565

    申请日：2001-09-27

    申请人： Jacobus Johannes Mencke

    发明人： Jacobus Johannes Mencke

    IPC分类号： D02J1/22

    CPC分类号： D01F6/04 ,  D02J1/222 ,  D02J13/001

    摘要： The invention relates to an oven for drawing fibers at elevated temperature, which oven is on two sides opposite one another provided with guide rolls dictating a zigzag up-and-down drawing trajectory for the fiber in the oven. In the oven according to the invention the drawing trajectory is at least 20 meters long and the rolls are driven. The invention also relates to a process for drawing fibers using the oven according to the invention, in particular to a process for producing highly oriented polyethylene fibers.

    摘要翻译： 本发明涉及一种用于在升高的温度下拉伸纤维的烘箱，该烘箱位于彼此相对的两侧，设有导辊，该导辊指定烤箱中纤维的锯齿状上下拉伸轨迹。 在根据本发明的烘箱中，绘图轨迹长至少20米，并且辊被驱动。 本发明还涉及使用根据本发明的烘箱拉制纤维的方法，特别涉及一种生产高取向聚乙烯纤维的方法。