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    Method for melt-spinning thermoplastic polymer fibers
    2.
    发明授权
    Method for melt-spinning thermoplastic polymer fibers 失效
    熔融纺丝热塑性聚合物纤维的方法

    公开(公告)号：US4863662A

    公开(公告)日：1989-09-05

    申请号：US226383

    申请日：1988-07-29

    申请人： Katsumi Hasegawa ,  Michio Ohno ,  Isoo Saito ,  Kotaro Fujioka

    发明人： Katsumi Hasegawa ,  Michio Ohno ,  Isoo Saito ,  Kotaro Fujioka

    IPC分类号： D01D5/098 ,  D01D5/092 ,  D01D13/00 ,  D01F6/60 ,  D01F6/62

    CPC分类号： D01D5/092 ,  D01D13/00

    摘要： A thermoplastic polymer yarn is spun into a spinning tube charged with a pressurized gas of more than 1 kg/cm.sup.2 G and withdrawn through a yarn exit provided with a unique sealing means which substantially prevents the charged gas from leakage but allows passage of the yarn out from the spinning tube. The resultant yarn has a high molecular orientation due to the improved quenching effect and the increase of resistance against yarn travelling of the charged gas.

    摘要翻译： 将热塑性聚合物纱线纺丝到装有超过1kg / cm2G的加压气体的纺丝管中，并通过设置有独特密封装置的纱线出口取出，该密封装置基本上防止带电气体泄漏，但允许纱线从 纺纱管。 由于提高的淬火效果和对带电气体的纱线行进的阻力的增加，所得纱线具有高分子取向。

    Polyester multifilament yarn and process for producing thereof
    3.
    发明授权
    Polyester multifilament yarn and process for producing thereof 失效
    聚酯复丝纱及其制造方法

    公开(公告)号：US4491657A

    公开(公告)日：1985-01-01

    申请号：US354200

    申请日：1982-03-03

    申请人： Isoo Saito ,  Kotaro Fujioka ,  Hajime Arai ,  Hideo Saruyama

    发明人： Isoo Saito ,  Kotaro Fujioka ,  Hajime Arai ,  Hideo Saruyama

    IPC分类号： B60C9/00 ,  D01F6/62 ,  D02G3/48 ,  C08G63/02

    CPC分类号： D01F6/62 ,  D01D5/12 ,  D02G3/48 ,  D10B2331/04

    摘要： A polyester multifilament yarn which has the following properties: an initial modulus (Mi) of 90 to 130 grams per denier, a terminal modulus (Mt), a shrinkage index value (.DELTA.S/IV) of 2 to 8 percent, a birefringence (.DELTA.n) of 165.times.10.sup.-3 to 190.times.10.sup.3, a crystalline orientation function (fc) of 0.93 to 0.97, a crystal size (D) 47 to 55 angstroms, a long period (Lp) of 130 to 145 angstroms, a molecular orientation index in the amorphous region (F) of 0.80 to 0.92, and a concentration of carboxyl end groups (--COOH) of 0 to 25 equivalents per 10.sup.6 grams of the polymer is disclosed. The yarn is improved in modulus and shrinkage. A textile reinforcement for tire cord obtained from the multifilament yarn, exhibits exceedingly improved resistance to fatigue and durability to heating. The polyester multifilament yarn is obtained by (A) melt-spinning polymer at high speed (B) solidifying the spun yarn through a solidification zone comprising (a) a heating zone and (b) cooling zone adjacent to the lower part of the heating zone, and (C) withdrawing the solidified yarn, and (D) hot drawing the yarn.

    摘要翻译： 一种聚酯复丝纱，具有以下特性：初始模量（Mi）为90-130克/旦尼尔，末端模量（Mt），收缩指数值（DELTA S / IV）为2-8％，双折射率 DELTA n）为165×10 -3至190×10 3，结晶取向功能（fc）为0.93至0.97，晶体尺寸（D）为47至55埃，长周期（Lp）为130至145埃，分子取向指数 公开了0.80至0.92的无定形区域（＆upbar＆F），并且公开了每106克聚合物的羧基端基（-COOH）浓度为0至25当量。 纱线的模量和收缩率提高。 从复丝纱线获得的用于轮胎帘线的织物增强件，耐疲劳性和加热耐久性显着提高。 聚酯复丝纱线是通过（A）将高分子聚合物（B）熔融纺丝得到的（B），使细纱线固化在一个凝固区域，该凝固区域包括（a）加热区域和（b）与加热区域的下部相邻的冷却区域 ，（C）取出固化纱线，（D）热拉伸纱线。

    Process for producing high knot strength polyamide monofilaments
    4.
    发明授权
    Process for producing high knot strength polyamide monofilaments 失效
    生产高结强度聚酰胺单丝的方法

    公开(公告)号：US4338277A

    公开(公告)日：1982-07-06

    申请号：US179703

    申请日：1980-08-20

    申请人： Isoo Saito ,  Kotaro Fujioka

    发明人： Isoo Saito ,  Kotaro Fujioka

    IPC分类号： D01F6/60 ,  D01F6/80 ,  D01F6/90 ,  B29C17/02

    CPC分类号： D01F6/60 ,  Y10S264/28

    摘要： Process for producing polyamide monofilament including partially orienting polyamide monofilament, steaming the partially oriented monofilament, heating and relaxing under low tension for disturbing the molecular orientation of the skin layer of said monofilament and drawing the relaxed monofilament to raise the molecular orientation of its core.Monofilaments of this invention are high in knot strength and are two-layer structures comprising a core and a skin layer. The monofilaments have an average index of birefringence of at least about 50.times.10.sup.-3 and a degree of molecular orientation in the amorphous region of said skin layer of not more than about 0.5.

    摘要翻译： 用于制造包括部分取向的聚酰胺单丝的聚酰胺单丝的方法，蒸发部分取向的单丝，在低张力下加热和松弛以扰乱所述单丝的表层的分子取向并拉伸松弛的单丝以提高其核心的分子取向。 本发明的单丝具有高的结强度，并且是包含芯和表皮层的两层结构。 单丝具有至少约50×10 -3的双折射的平均指数，并且所述表层的非晶区域中的分子取向度不大于约0.5。

    High-strength polyamide fiber
    6.
    发明授权
    High-strength polyamide fiber 失效
    高强度聚酰胺纤维

    公开(公告)号：US5514471A

    公开(公告)日：1996-05-07

    申请号：US318847

    申请日：1994-10-24

    申请人： Ryoji Okano ,  Isoo Saito ,  Hideo Nagahara ,  Michikane Tuduki

    发明人： Ryoji Okano ,  Isoo Saito ,  Hideo Nagahara ,  Michikane Tuduki

    IPC分类号： D01F6/60 ,  D02G3/00

    CPC分类号： D01F6/60 ,  Y10T428/2913 ,  Y10T428/2969

    摘要： To provide a polyamide fiber such as polyhexamethylene adipamide fiber having high tenacity and excellent tenacity retention after vulcanization and GY fatigue life. This fiber is a high tenacity polyamide fiber, preferably a polyhexamethylene adipamide fiber comprising at least 95% by mole of hexamethylene adipamide units and having a sulfuric acid relative viscosity of at least 3.0, said polyamide fiber satisfying the requirements: (a) differential birefringence .delta..DELTA.n.gtoreq.-5.times.10.sup.-3 to 0.times.10.sup.-3, (b) long period (Dm) in the direction of fiber axis: Dm.gtoreq.105 A, and long period (De) in the radial direction of fiber: De=90 to 130 A, (c) main dispersion peak temperature (T.alpha.) in mechanical loss tangent (tan.delta.) curve as obtained by viscoelastic measurement: T.alpha..gtoreq.125.degree. C., and preferably further satisfying the requirements: (d) birefringence .DELTA.n.gtoreq.60.times.10.sup.-3, (e) crystal orientation function fc.gtoreq.0.88, and (f) amorphous orientation function fa=0.70 to 0.85.

    摘要翻译： PCT No.PCT / JP94 / 00281 Sec。 371日期：1994年10月24日 102（e）日期1994年10月24日PCT 1994年2月23日提交PCT公布。 第WO94 / 19517号公报 日期：1994年9月1日。提供聚酰胺纤维，例如具有高强度的聚己二酰己二酰己二胺纤维，硫化后的韧性保持性和GY疲劳寿命。 该纤维是高韧性聚酰胺纤维，优选包含至少95摩尔％己二酰己二胺单元并且硫酸相对粘度至少为3.0的聚己二酰己二胺纤维，所述聚酰胺纤维满足以下要求：（a）差示双折射三角 光纤轴方向的长度（Dm）：Dm> / = 105A，纤维径向的长周期（De）：De = 90〜130A，（c）通过粘弹性测定获得的机械损耗角正切（tanδ）曲线中的主分散峰温度（Tα）：Tα> 125℃，优选进一步满足以下要求：（ d）双折射Δε= 60×10 -3，（e）晶体取向函数fc> = 0.88，（f）非晶取向函数fa = 0.70〜0.85。

    High-tenacity conjugated fiber and process for preparation thereof
    7.
    发明授权
    High-tenacity conjugated fiber and process for preparation thereof 失效
    高强度共轭纤维及其制备方法

    公开(公告)号：US4987030A

    公开(公告)日：1991-01-22

    申请号：US253135

    申请日：1988-10-04

    申请人： Isoo Saito ,  Takuji Sato ,  Koichi Kubota ,  Masaharu Yamamoto

    发明人： Isoo Saito ,  Takuji Sato ,  Koichi Kubota ,  Masaharu Yamamoto

    IPC分类号： D01F8/12 ,  D01F8/14

    CPC分类号： D01F8/12 ,  D01F8/14 ,  Y10S57/902 ,  Y10T428/2929 ,  Y10T428/2931

    摘要： A conjugated fiber having a sheath-core conjugated structure comprising a polyester core component composed mainly of polyethylene terephthalate and a polyamide sheath component composed mainly of polyhexamethylene adipamide, is disclosed, which has excellent mechanical properties such as a high tenacity, a high modulus, and an improved dimensional stability, and an improved adhesion to a rubber, especially a high-temperature adhesion, an improved heat resistance in a rubber, and a high fatigue resistance, and thus is useful as an industrial material. By adopting a high-speed spinning procedure in the fiber preparing process, the peel resistance in the interface of the sheath-core conjugated structure is greatly improved, and the following valuable characteristics not possessed by conventional conjugated yarns can be obtained:(1) Excellent adhesion and high-temperature adhesion comparable to those of a polyamide, which cannot be obtained in a polyester.(2) High modulus and dimensional stability comparable to those of a polyester, which cannot be obtained in a polyamide.(3) A heat resistance in a rubber and a fatigue resistance superior to those of a polyester.

    摘要翻译： 公开了一种具有鞘芯共轭结构的复合纤维，其包含主要由聚对苯二甲酸乙二醇酯组成的聚酯芯组分和主要由聚己二酰己二胺组成的聚酰胺鞘组分，其具有优异的机械性能，例如高强度，高模量和 改进的尺寸稳定性，以及改进的对橡胶的粘合性，特别是高温粘合性，橡胶中耐热性提高，抗疲劳性高，因此可用作工业材料。 通过在纤维制备方法中采用高速纺丝方法，大大提高了皮芯共轭结构界面的剥离强度，可以得到常规共轭纱不具有以下有价值的特性：（1）优异 粘合性和高温粘合性与聚酯中不能得到的聚酰胺相当。 （2）与在聚酰胺中不能获得的聚酯相比，高模量和尺寸稳定性。 （3）橡胶中的耐热性和耐聚酯的耐疲劳性。