LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING THE SAME
    3.
    发明申请
    LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING THE SAME 有权
    液晶聚酯纤维及其制造方法

    公开(公告)号:US20110318982A1

    公开(公告)日:2011-12-29

    申请号:US13255524

    申请日:2010-03-04

    IPC分类号: D03D15/00 B29C71/02 D02G3/02

    摘要: Disclosed are liquid crystal polyester fibers, which have a peak half-width of 15° C. or greater at an endothermic peak (Tm1) observed by differential calorimetry under a temperature elevation of 20° C./minute from 50° C., polystyrene equivalent weight average molecular weight of 250,000 or more and 2,000,000 or less, and a variable waveform of less than 10% in terms of the half inert diagram mass waveform determined by a Uster yarn irregularity tester. Also disclosed is a method for producing liquid crystal polyester fibers, wherein liquid crystal polyester fibers are formed into a package, the fibers are then subjected to solid-phase polymerization, and the solid-phase polymerized liquid crystal polyester fibers are unrolled from the package and successively heat treated without being once taken up. The heat treatment temperature is controlled at a temperature of the endothermic peak temperature (Tm1) of the solid-phase polymerized liquid crystal polyester fibers+60° C. or higher, and the speeds of the fibers before and after heat treatment are regulated, respectively, by first and second rollers.

    摘要翻译: 公开了液晶聚酯纤维,其在50℃的温度升高/ 50分钟的温度升高下观察到的吸热峰(Tm1)的峰半峰宽度为15℃以上,聚苯乙烯 当量重量平均分子量为25万以上且2,000,000以下,以及由乌斯特纱不规则性测定仪确定的半惰性图质量波形小于10%的可变波形。 还公开了一种液晶聚酯纤维的制造方法,其中将液晶聚酯纤维形成包装,然后将纤维进行固相聚合,并将固相聚合的液晶聚酯纤维从包装中展开, 连续热处理而不被一次吸收。 将热处理温度控制在固相聚合液晶聚酯纤维的吸热峰温度(Tm1)+ 60℃以上的温度下,分别调节热处理前后的纤维速度 ,通过第一和第二辊。

    LIQUID CRYSTALLINE POLYESTER FIBER AND PROCESS FOR PRODUCTION OF THE SAME
    4.
    发明申请
    LIQUID CRYSTALLINE POLYESTER FIBER AND PROCESS FOR PRODUCTION OF THE SAME 有权
    液晶聚酯纤维及其制造方法

    公开(公告)号:US20100104870A1

    公开(公告)日:2010-04-29

    申请号:US12528980

    申请日:2008-02-27

    IPC分类号: B32B5/02 C08F6/00 B29D11/00

    摘要: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.

    摘要翻译: 一种液晶聚酯纤维,其在50℃下以20℃/分钟的升温速度加热时,在差示量热法中观察到吸热峰(Tm1)的一半宽度为15℃以上,强度 12.0cN / dtex以上; 及其制造方法。 可以有效地制造耐磨损性和长度均匀性优异且织物的织造性和质量提高,特别是单纤维细小的液晶聚酯纤维,而不会损害由液晶聚酯制成的织物所固有的特性 通过固相聚合生产的纤维,即高强度,高弹性模量和优异的耐热性。

    Liquid crystalline polyester fiber and process for production of the same
    5.
    发明授权
    Liquid crystalline polyester fiber and process for production of the same 有权
    液晶聚酯纤维及其生产方法相同

    公开(公告)号:US08673174B2

    公开(公告)日:2014-03-18

    申请号:US12528980

    申请日:2008-02-27

    IPC分类号: C09K19/38 D01F6/62 D01F6/84

    摘要: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.

    摘要翻译: 一种液晶聚酯纤维,其在50℃下以20℃/分钟的升温速度加热时,在差示量热法中观察到吸热峰(Tm1)的一半宽度为15℃以上,强度 12.0cN / dtex以上; 及其制造方法。 可以有效地制造耐磨损性和长度均匀性优异且织物的织造性和质量提高,特别是单纤维细小的液晶聚酯纤维,而不会损害由液晶聚酯制成的织物所固有的特性 通过固相聚合生产的纤维,即高强度,高弹性模量和优异的耐热性。

    Liquid crystal polyester fibers and method for producing the same
    6.
    发明授权
    Liquid crystal polyester fibers and method for producing the same 有权
    液晶聚酯纤维及其制造方法

    公开(公告)号:US09011743B2

    公开(公告)日:2015-04-21

    申请号:US13255524

    申请日:2010-03-04

    摘要: Disclosed are liquid crystal polyester fibers, which have a peak half-width of 15° C. or greater at an endothermic peak (Tm1) observed by differential calorimetry under a temperature elevation of 20° C./minute from 50° C., polystyrene equivalent weight average molecular weight of 250,000 or more and 2,000,000 or less, and a variable waveform of less than 10% in terms of the half inert diagram mass waveform determined by a Uster yarn irregularity tester. Also disclosed is a method for producing liquid crystal polyester fibers, wherein liquid crystal polyester fibers are formed into a package, the fibers are then subjected to solid-phase polymerization, and the solid-phase polymerized liquid crystal polyester fibers are unrolled from the package and successively heat treated without being once taken up. The heat treatment temperature is controlled at a temperature of the endothermic peak temperature (Tm1) of the solid-phase polymerized liquid crystal polyester fibers+60° C. or higher, and the speeds of the fibers before and after heat treatment are regulated, respectively, by first and second rollers.

    摘要翻译: 公开了液晶聚酯纤维,其在50℃的温度升高/ 50分钟的温度升高下观察到的吸热峰(Tm1)的峰半峰宽度为15℃以上,聚苯乙烯 当量重量平均分子量为25万以上且2,000,000以下,以及由乌斯特纱不规则性测定仪确定的半惰性图质量波形小于10%的可变波形。 还公开了一种液晶聚酯纤维的制造方法,其中将液晶聚酯纤维形成包装,然后将纤维进行固相聚合,并将固相聚合的液晶聚酯纤维从包装中展开, 连续热处理而不被一次吸收。 将热处理温度控制在固相聚合液晶聚酯纤维的吸热峰温度(Tm1)+ 60℃以上的温度下,分别调节热处理前后的纤维速度 ,通过第一和第二辊。

    LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING SAME
    7.
    发明申请
    LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING SAME 审中-公开
    液晶聚酯纤维及其生产方法

    公开(公告)号:US20140017965A1

    公开(公告)日:2014-01-16

    申请号:US14007703

    申请日:2012-03-12

    IPC分类号: D01F6/62 C08G63/40 B29D99/00

    摘要: Provided are liquid crystal polyester fibers having a running tension variable width (R) of 5 cN or less and an oil component deposition rate of 3.0 wt % or less. Also provided is a method for producing liquid crystal polyester fibers whereby solid-phase polymerization is performed after applying inorganic particles (A) and phosphoric acid compound (B) to yarn obtained by melt spinning of liquid crystal polyester. Further provided is a mesh textile formed from the liquid crystal polyester fibers. By means of the liquid crystal polyester fibers, method for producing the same, and mesh textile, step transition and product yield during the weaving steps are excellent in that there is little scum and there is little variation of the running tension during the weaving steps.

    摘要翻译: 提供了具有5cN以下的运行张力可变宽度(R)和3.0重量%以下的油成分沉积速率的液晶聚酯纤维。 还提供了一种制备液晶聚酯纤维的方法,其中在将无机颗粒(A)和磷酸化合物(B))施加到通过液晶聚酯的熔融纺丝获得的纱线之后进行固相聚合。 还提供了由液晶聚酯纤维形成的网状织物。 通过液晶聚酯纤维,其制造方法和网织物,织造步骤期间的阶跃过渡和产物收率优异,因为在少量浮渣中,织造步骤期间的运行张力几乎没有变化。