Process for producing meta-aromatic polyamide fiber
    1.
    发明授权
    Process for producing meta-aromatic polyamide fiber 失效
    制备间位芳族聚酰胺纤维的方法

    公开(公告)号:US06569987B1

    公开(公告)日:2003-05-27

    申请号:US09868863

    申请日:2001-06-21

    IPC分类号: C08G6900

    CPC分类号: D01F6/605

    摘要: To produce meta aramid filaments having a good quality from a polymer solution of a meta aramid produced by a solution polymerization method, with high efficiency, (1) a meta aramid is prepared by polymerization-reacting a aromatic meta-diamine with a aromatic meta-dicarboxylic acid chloride in a polar organic solvent; (2) hydrogen chloride contained in the resultant polymer solution is neutralized with a neutralizing agent containing an alkali metal hydroxide which can react with hydrogen chloride to produce a salt thereof insoluble in the polymerization solvent; (3) the salt deposited from the polymer solution is removed by filtration; (4) the resultant polymer solution is mixed with water and a polar organic amide solvent to prepare a spinning solution; (5) the resultant meta aramid spinning solution is directly extruded in the form of filamentary streams into an aqueous coagulation liquid, to coagulate the extruded filamentary streams of the polymer solution into the form of filaments; (6) the coagulated filaments are immersed in water to remove the salt and the solvent from the filaments; and (7) the water-washed filaments are drawn and heat-treated.

    摘要翻译: 为了从溶液聚合法生产的间位芳族聚合物的聚合物溶液中高效地制备具有良好质量的间位芳族聚酰胺长丝,(1)通过使芳族间二胺与芳族间二胺反应, 二羧酸氯化物在极性有机溶剂中; (2)所得聚合物溶液中所含的氯化氢用含碱金属氢氧化物的中和剂中和,该中和剂可与氯化氢反应,生成不溶于聚合溶剂的盐; (3)通过过滤除去由聚合物溶液沉积的盐; (4)将得到的聚合物溶液与水和极性有机酰胺溶剂混合以制备纺丝溶液; (5)将所得到的间位芳族聚酰胺纺丝溶液以丝状流的形式直接挤出成水凝固液体,使挤出的聚合物溶液的丝状流凝结成长丝形式; (6)将凝固的长丝浸入水中以从长丝中除去盐和溶剂; 和(7)水洗长丝被拉伸和热处理。

    Meta-type wholly aromatic polyamide fiber
    2.
    发明授权
    Meta-type wholly aromatic polyamide fiber 有权
    元型全芳族聚酰胺纤维

    公开(公告)号:US09243350B2

    公开(公告)日:2016-01-26

    申请号:US13639033

    申请日:2011-04-08

    CPC分类号: D01F6/605 D01F1/106 D06P3/242

    摘要: By forming a meta-type wholly aromatic polyamide fiber using a highly hydrophobic UV absorber and having specific physical properties, a meta-type wholly aromatic polyamide fiber having light resistance, which can be dyed in various hues by carrier dyeing and in which the shedding of a light stabilizer during dyeing can be suppressed, is provided. That is, the meta-type wholly aromatic polyamide fiber contains a UV absorber with a water solubility of less than 0.04 mg/L and has a degree of dye exhaustion of 90% or more in the form of a dyed fiber and a light resistance retention of 80% or more after carrier dyeing.

    摘要翻译: 通过使用具有特定物理性质的高疏水性紫外线吸收剂形成间位型全芳族聚酰胺纤维,具有耐光性的间位型全芳族聚酰胺纤维,其可以通过载体染色以各种色调染色,并且其中脱落 可以抑制染色时的光稳定剂。 也就是说,间位型全芳香族聚酰胺纤维含有水溶性小于0.04mg / L的紫外线吸收剂,并且染色纤维形式的染色剂耗尽度为90%以上,耐光保持性 在载体染色后为80%以上。

    META-TYPE WHOLLY AROMATIC POLYAMIDE FIBER EXCELLENT IN HIGH-TEMPERATURE PROCESSABILITY, AND METHOD FOR PRODUCING THE SAME
    3.
    发明申请
    META-TYPE WHOLLY AROMATIC POLYAMIDE FIBER EXCELLENT IN HIGH-TEMPERATURE PROCESSABILITY, AND METHOD FOR PRODUCING THE SAME 有权
    具有高温可加工性的META型异丙醇酰胺纤维及其制造方法

    公开(公告)号:US20090054620A1

    公开(公告)日:2009-02-26

    申请号:US12162762

    申请日:2007-01-30

    IPC分类号: C08G63/44 D01F6/60

    摘要: Upon producing a meta-type wholly aromatic polyamide fiber by wet spinning a polymer solution containing a meta-type wholly aromatic polyamide containing a m-phenylenediamine isophthalamide skeleton as a major component, and an amide solvent containing a salt, (1) the polymer solution is ejected into a coagulation bath containing an amide solvent and water and containing a salt at a low concentration to coagulate as a porous thread body (fibrous material), (2) which is subsequently stretched in a plastic stretching bath containing an aqueous solution of an amide solvent, (3) is rinsed with water and then subjected to a heat treatment in a saturated steam atmosphere, and (4) is then subjected to a dry heat treatment, so as to produce a novel meta-type wholly aromatic polyamide fiber that contains an extremely small amount of a solvent remaining in the fibers, contains a small amount of a volatile substance harmful in a heat treatment step at a high temperature, is capable of suppressing coloration of a fiber product, and is capable of providing a product with high performance and high quality.

    摘要翻译: 通过湿法纺丝含有间苯二胺间苯二甲酰骨架的间位型全芳香族聚酰胺作为主要成分的聚合物溶液和含有盐的酰胺系溶剂制造间位型全芳香族聚酰胺纤维时,(1)聚合物溶液 被喷射到含有酰胺溶剂和水并含有低浓度的盐的凝结浴中,以凝固为多孔螺纹体(纤维材料),(2),随后在含有水溶液的塑料拉伸浴中拉伸 酰胺溶剂,(3)用水冲洗,然后在饱和蒸汽气氛中进行热处理,然后(4)进行干热处理,以制备新颖的间位型全芳族聚酰胺纤维,其中 含有极少量的残留在纤维中的溶剂,含有少量在高温下在热处理步骤中有害的挥发性物质,能够抑制 纤维制品的着色,并且能够提供具有高性能和高质量的产品。

    Reinforcing composite yarn and production therefor
    4.
    发明授权
    Reinforcing composite yarn and production therefor 有权
    增强复合纱及其生产

    公开(公告)号:US07395654B2

    公开(公告)日:2008-07-08

    申请号:US10398402

    申请日:2002-08-01

    申请人: Kotaro Takiue

    发明人: Kotaro Takiue

    IPC分类号: D02G3/02 D02G3/22

    CPC分类号: D02G3/447

    摘要: A composite yarn having a high reinforcing effect on a matrix material to be reinforced is a paralleled yarn of at least one substantially non-twisted multifilament yarn having a tensile strength of 13 cN/dtex or more and an initial modulus of 300 cN/dtex or more with at least one substantially non-twisted staple fiber yarn having a staple fiber fraction (1) having a fiber length of 1.5 times or more the average fiber length of the staple fibers and another fraction (2) having a fiber length of 0.5 time or less the average fiber length, in which a portion of the staple fibers in the staple fiber yarn winds around the periphery of the paralleled composite yarn to thereby bind the multifilament yarn and the staple fiber yarn substantially into a composite yarn without twisting the composite yarn.

    摘要翻译: 对待加强的基体材料具有高增强作用的复合纱线是拉伸强度为13cN / dtex以上,初始模量为300cN / dtex以上的至少一根基本上不捻的复丝纱线的平行纱线, 更具有至少一种基本上不加捻的短纤维纱线,其具有纤维长度为短纤维的平均纤维长度的1.5倍或更多的短纤维部分(1),以及纤维长度为0.5倍的另一部分(2) 平均纤维长度小于短纤维纱线中的一部分短纤维缠绕在并列复合纱线周围的平均纤维长度,从而将复丝纱线和短纤维纱线基本上粘合成复合纱线而不使复合纱线扭曲 。

    Meta-type wholly aromatic polyamide fiber excellent in high-temperature processability, and method for producing the same
    5.
    发明授权
    Meta-type wholly aromatic polyamide fiber excellent in high-temperature processability, and method for producing the same 有权
    具有优异的高温加工性的元型全芳族聚酰胺纤维及其制造方法

    公开(公告)号:US08802233B2

    公开(公告)日:2014-08-12

    申请号:US12162762

    申请日:2007-01-30

    摘要: Upon producing a meta-type wholly aromatic polyamide fiber by wet spinning a polymer solution containing a meta-type wholly aromatic polyamide containing a m-phenylenediamine isophthalamide skeleton as a major component, and an amide solvent containing a salt, (1) the polymer solution is ejected into a coagulation bath containing an amide solvent and water and containing a salt at a low concentration to coagulate as a porous thread body (fibrous material), (2) which is subsequently stretched in a plastic stretching bath containing an aqueous solution of an amide solvent, (3) is rinsed with water and then subjected to a heat treatment in a saturated steam atmosphere, and (4) is then subjected to a dry heat treatment, so as to produce a novel meta-type wholly aromatic polyamide fiber that contains an extremely small amount of a solvent remaining in the fibers, contains a small amount of a volatile substance harmful in a heat treatment step at a high temperature, is capable of suppressing coloration of a fiber product, and is capable of providing a product with high performance and high quality.

    摘要翻译: 通过湿法纺丝含有间苯二胺间苯二甲酰骨架的间位型全芳香族聚酰胺作为主要成分的聚合物溶液和含有盐的酰胺系溶剂制造间位型全芳香族聚酰胺纤维时,(1)聚合物溶液 被喷射到含有酰胺溶剂和水并含有低浓度的盐的凝结浴中,以凝固为多孔螺纹体(纤维材料),(2),随后在含有水溶液的塑料拉伸浴中拉伸 酰胺溶剂,(3)用水冲洗,然后在饱和蒸汽气氛中进行热处理,然后(4)进行干热处理,以制备新颖的间位型全芳族聚酰胺纤维,其中 含有极少量的残留在纤维中的溶剂,含有少量在高温下在热处理步骤中有害的挥发性物质,能够抑制 纤维制品的着色,并且能够提供具有高性能和高质量的产品。

    META-TYPE WHOLLY AROMATIC POLYAMIDE FIBER
    6.
    发明申请
    META-TYPE WHOLLY AROMATIC POLYAMIDE FIBER 有权
    META型单体芳香聚酰胺纤维

    公开(公告)号:US20130023610A1

    公开(公告)日:2013-01-24

    申请号:US13639033

    申请日:2011-04-08

    CPC分类号: D01F6/605 D01F1/106 D06P3/242

    摘要: By forming a meta-type wholly aromatic polyamide fiber using a highly hydrophobic UV absorber and having specific physical properties, a meta-type wholly aromatic polyamide fiber having light resistance, which can be dyed in various hues by carrier dyeing and in which the shedding of a light stabilizer during dyeing can be suppressed, is provided. That is, the meta-type wholly aromatic polyamide fiber contains a UV absorber with a water solubility of less than 0.04 mg/L and has a degree of dye exhaustion of 90% or more in the form of a dyed fiber and a light resistance retention of 80% or more after carrier dyeing.

    摘要翻译: 通过使用具有特定物理性质的高疏水性紫外线吸收剂形成间位型全芳族聚酰胺纤维,具有耐光性的间位型全芳族聚酰胺纤维,其可以通过载体染色以各种色调染色,并且其中脱落 可以抑制染色时的光稳定剂。 也就是说,间位型全芳香族聚酰胺纤维含有水溶性小于0.04mg / L的紫外线吸收剂,并且染色纤维形式的染色剂耗尽度为90%以上,耐光保持性 在载体染色后为80%以上。

    High-Strength Spanized Yarn and Method for Producing the Same
    8.
    发明申请
    High-Strength Spanized Yarn and Method for Producing the Same 审中-公开
    高强度纱线及其生产方法

    公开(公告)号:US20080003428A1

    公开(公告)日:2008-01-03

    申请号:US11587571

    申请日:2005-04-21

    IPC分类号: D02G3/02 D02G1/16 D02J1/08

    摘要: A spanized yarn constituted by a high strength short fiber containing at least one polymer selected from the group consisting of poly-p-phenylene terephthalamide, poly-p-phenylene benzoxazole, polyethylene, polyvinyl alcohol and wholly aromatic polyester and having a strength of 14 cN/dtex or more, and the high strength short fiber has an average single yarn length of from 50 to 90 cm and a coefficient of variation (CV) in average single yarn length of 50% or less.

    摘要翻译: 由含有至少一种选自聚对苯二甲酰对苯二胺,聚对苯并苯并恶唑,聚乙烯,聚乙烯醇和全芳族聚酯组成的组中的至少一种聚合物的高强度短纤维构成的,具有14cN / dtex以上,高强度短纤维的平均单丝长度为50〜90cm,平均单纱长度的变异系数(CV)为50%以下。