폴리아렌아졸 실의 제조 방법
    7.
    发明公开
    폴리아렌아졸 실의 제조 방법 有权
    生产聚丁腈腈的方法

    公开(公告)号:KR1020080033142A

    公开(公告)日:2008-04-16

    申请号:KR1020077024817

    申请日:2006-03-27

    CPC classification number: D01F6/74

    Abstract: The present invention concerns a process for making a polyareneazole multifilament yarn comprising: a) extruding a solution comprising polyareneazole polymer and polyphosphoric acid through a plurality of orifices to produce filaments; b) forming a multifilament yarn from said filaments; c) hydrolyzing at least some of the polyphosphoric acid in the yarn by heating the yarn to a temperature above about 120 °C for up to about two minutes; d) washing at least some of the hydrolyzed polyphosphoric acid from the yarn; e) drying the washed yarn; f) optionally, heating the yarn above about 300 °C, and g) collecting the yarn at a speed of at least about 50 meters per minute.

    Abstract translation: 本发明涉及一种制备聚芳腈复丝纱线的方法,包括:a)通过多个孔口挤出包含聚芳腈聚合物和多磷酸的溶液以产生长丝; b)从所述长丝形成复丝纱线; c)通过将纱线加热至高于约120℃的温度长达约2分钟来水解纱线中的至少一些多磷酸; d)从纱线中洗涤至少一些水解的多磷酸; e)干燥洗涤的纱线; f)任选地,将纱线加热到约300℃以上,g)以至少约50米/分钟的速度收集纱线。

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