Chain comprising a plurality of interconnected links
    1.
    发明授权
    Chain comprising a plurality of interconnected links 有权
    链条包括多个互连链节

    公开(公告)号:US08215094B2

    公开(公告)日:2012-07-10

    申请号:US13361867

    申请日:2012-01-30

    IPC分类号: F16G1/22 F16G13/12

    摘要: The invention relates to a chain suitable to moor or anchor boats, to lash cargo in road, rail, water and air transportation or for conveying, hoisting, suspending or lifting applications, said chain comprising a plurality of interconnected links. More in particular the invention relates to a chain suitable for the above stated uses comprising a plurality of interconnected links, at least part of the links comprising polyolefin fibers and in particular ultrahigh molecular weight polyethylene (UHMWPE) fibers. The invention also relates to a method for enhancing the strength of such a chain.

    摘要翻译: 本发明涉及一种适用于停泊或锚船的链条,用于在道路,铁路,水和空中运输中运送货物或用于输送,起吊,悬挂或提升应用,所述链条包括多个相互连接的连接件。 更具体地,本发明涉及适用于上述用途的链,其包括多个相互连接的连接件,至少部分连接件包括聚烯烃纤维,特别是超高分子量聚乙烯(UHMWPE)纤维。 本发明还涉及一种增强这种链强度的方法。

    Process for making high-performance polyethylene multifilament yarn
    5.
    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

    IPC分类号: D02G3/00

    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。