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    Process for the production of polyarenazole yarn
    43.
    发明授权
    Process for the production of polyarenazole yarn 有权
    聚赖氨酸纱线生产工艺

    公开(公告)号：US07776246B2

    公开(公告)日：2010-08-17

    申请号：US11909934

    申请日：2006-03-27

    Applicant: Steven R Allen ,  Steven D Moore ,  Christopher William Newton ,  David J Rodini ,  Doetze Jakob Sikkema

    Inventor： Steven R Allen ,  Steven D Moore ,  Christopher William Newton ,  David J Rodini ,  Doetze Jakob Sikkema

    IPC: B29C47/88

    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）通过将纱线加热至约120℃以上的温度，使纱线中的至少一些多磷酸水解至多约2分钟; 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。

    Process For The Production Of Polyarenazole Yarn
    46.
    发明申请
    Process For The Production Of Polyarenazole Yarn 有权
    聚赖氨酸纱线生产工艺

    公开(公告)号：US20080179776A1

    公开(公告)日：2008-07-31

    申请号：US11909934

    申请日：2006-03-27

    Applicant: Steven R. Allen ,  Stephen D. Moore ,  Christopher William Newton ,  David J. Rodini ,  Doetze Jakob Sikkema

    Inventor： Steven R. Allen ,  Stephen D. Moore ,  Christopher William Newton ,  David J. Rodini ,  Doetze Jakob Sikkema

    IPC: D01F6/74

    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）通过将纱线加热至约120℃以上的温度，使纱线中的至少一些多磷酸水解至多约2分钟; 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。

    Solvent recovery
    48.
    发明授权
    Solvent recovery 失效
    溶剂回收

    公开(公告)号：US4980031A

    公开(公告)日：1990-12-25

    申请号：US475926

    申请日：1990-02-06

    Applicant: David J. Rodini

    Inventor： David J. Rodini

    IPC: C07C231/24 ,  C08J11/02

    CPC classification number: C08J11/02 ,  C07C231/24

    Abstract: Hydrogen chloride evolution is reduced in the distillation of chloroform from its admixture with an amide solvent when in contact with stainless steel, by incorporation of certain tertiary aliphatic amines.

    Abstract translation: 通过掺入某些叔脂族胺，在与不锈钢接触时，与其与酰胺溶剂的混合物蒸馏氯仿时，氯化氢析出减少。

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