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公开(公告)号：US5993963A
公开(公告)日：1999-11-30
申请号：US940780
申请日：1997-09-30
CPC分类号： D01F6/74 , Y10T428/2913 , Y10T428/2967
摘要： A polybenzazole fiber characterized by having an elastic modulus of not less than 1350 g/d and requiring not longer than 10 minutes to reduce its water content from 2.0% to 1.5%, when determined using a thermogravimetric analyzer at 110.degree. C. after moisture absorption of not less than 2.0% of a fiber, and a method for manufacturing such a polybenzazole fiber, comprising extruding a spinning dope comprising polybenzazole and a polyphosphoric acid from a spinneret to give a dope filament, and cooling the dope filament to not more than 50.degree. C., followed by coagulation and washing. According to the method of the present invention, a polybenzazole fiber showing less decrease in strength by rapid heating can be provided.
摘要翻译： 一种聚吲哚纤维，其特征在于当吸湿后在110℃下使用热重分析仪测定时，其弹性模量不小于1350g / d，并且需要不超过10分钟以将其含水量从2.0％降低至1.5％ 不小于2.0％的纤维，以及制造这种聚吲哚纤维的方法，包括从喷丝头挤出包含聚吲哚和多磷酸的纺丝原液，得到涂料丝，并将所述涂料丝冷却至不超过50 然后凝固和洗涤。 根据本发明的方法，可以提供通过快速加热显示较少的强度降低的聚吲唑纤维。
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公开(公告)号：US5772942A
公开(公告)日：1998-06-30
申请号：US707546
申请日：1996-09-05
CPC分类号： D01F6/74
摘要： The present invention provides processes for producing polybenzazole fibers where a spinning dope containing a polybenzazole polymer in an acid solvent is extruded through a spinning nozzle, followed by coagulation in a coagulating medium and washing with a fluid capable of dissolving the acid solvent; thereafter, in one process, the fiber obtained by the coagulation under specific conditions and the subsequent washing is dried in a heating zone with at least 80% part based on the total length thereof being set at a temperature of 240.degree. C. or higher, and in the other process, the fiber obtained by the coagulation under the conventional conditions and the subsequent washing is neutralized with a basic solution, followed by washing with a fluid capable of dissolving the basic solution, and then dried at a specific temperature set depending upon the residual moisture content in the fiber. The present invention further provides a polybenzazole intermediate predried fiber having a residual moisture content of about 25% and exhibiting a single peak for liquid freezing in the fiber over a temperature range of from 20.degree. to -70.degree. C. when measured by differential scanning calorimetry (DSC).
摘要翻译： 本发明提供生产聚吲哚纤维的方法，其中在酸性溶剂中含有聚吲哚聚合物的纺丝原液通过纺丝喷嘴挤出，然后在凝固介质中凝结，并用能溶解酸溶剂的流体洗涤; 此后，在一个方法中，通过在特定条件下凝结获得的纤维和随后的洗涤在加热区中干燥，至少80％部分基于其总长度设定在240℃或更高的温度， 在另一方法中，将通过常规条件下的凝结获得的纤维和随后的洗涤用碱性溶液中和，然后用能够溶解碱性溶液的流体洗涤，然后在根据 纤维中残留的水分含量。 本发明还提供了当通过差示扫描量热法测量时，在20至-70℃的温度范围内，具有约25％的残余水分含量的聚吲唑中间体预干燥纤维，并且在纤维中显示出液体冷冻的单峰 （DSC）。
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公开(公告)号：US20100233451A1
公开(公告)日：2010-09-16
申请号：US12438230
申请日：2007-08-22
摘要： To provide fibers which retain the excellent heat resistance and flame retardancy inherent in polybenzazole fibers and pyridobisimidazole fibers, have improved post-processability and neither necessitate considerable change in production process conditions nor require a high-temperature and long-time heating treatment. With respect to the polybenzazole fiber and pyridobisimidazole fiber, in an electron diffraction diagram of a surface layer part (from the surface to 1 μm) of the fibers, the fibers containing a crystal present in a state satisfying that S2/S1 is in a prescribed range, wherein S1 is a diffraction peak area derived from a crystal (200) plane and S2 is a diffraction peak area derived from a plurality of other crystal planes along an equatorial direction profile.
摘要翻译： 为了提供保持聚吲哚纤维和吡啶并咪唑纤维中固有的优异耐热性和阻燃性的纤维，具有改进的后加工性，并且不需要生产工艺条件的相当大的改变，也不需要高温和长时间的加热处理。 关于聚吲哚纤维和吡啶并咪唑纤维，在表面层部分（从表面到1μm）的电子衍射图中，含有以满足S2 / S1的状态存在的晶体的纤维处于规定的 范围，其中S1是衍生自晶体（200）面的衍射峰面积，S2是沿着赤道方向轮廓从多个其它晶面衍生的衍射峰面积。
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公开(公告)号：US08580380B2
公开(公告)日：2013-11-12
申请号：US12438230
申请日：2007-08-22
摘要： To provide fibers which retain the excellent heat resistance and flame retardancy inherent in polybenzazole fibers and pyridobisimidazole fibers, have improved post-processability and neither necessitate considerable change in production process conditions nor require a high-temperature and long-time heating treatment. With respect to the polybenzazole fiber and pyridobisimidazole fiber, in an electron diffraction diagram of a surface layer part (from the surface to 1 μm) of the fibers, the fibers containing a crystal present in a state satisfying that S2/S1 is in a prescribed range, wherein S1 is a diffraction peak area derived from a crystal (200) plane and S2 is a diffraction peak area derived from a plurality of other crystal planes along an equatorial direction profile.
摘要翻译： 为了提供保持聚吲哚纤维和吡啶并咪唑纤维中固有的优异耐热性和阻燃性的纤维，具有改进的后加工性，并且不需要生产工艺条件的相当大的改变，也不需要高温和长时间的加热处理。 关于聚吲哚纤维和吡啶并咪唑纤维，在纤维表面层部分（从表面到1um）的电子衍射图中，含有以满足S2 / S1的状态存在的晶体的纤维处于规定的 范围，其中S1是衍生自晶体（200）面的衍射峰面积，S2是沿着赤道方向轮廓从多个其它晶面衍生的衍射峰面积。
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公开(公告)号：US07802916B2
公开(公告)日：2010-09-28
申请号：US11961944
申请日：2007-12-20
申请人： Yoshihiko Teramoto
发明人： Yoshihiko Teramoto
CPC分类号： G01N25/20
摘要： There is provided a differential scanning calorimeter for exactly measuring a calorie variation of the measured sample on the basis of the temperature difference between sample container and the reference container without the influence of the heat irregularity incoming from the surroundings and the noise components. The differential scanning calorimeter includes a heating furnace of an approximately H-shaped section having an approximately drum-shaped wall part and an approximately plate-shaped heat inflow part, a heater disposed outside the wall part so as to heat the heating furnace, a approximately bar-shaped heat-resistance member that is arranged along the center axis L of the wall part, that protrudes from both sides of the heat inflow part by an approximately equal length, that is made of a material heat conductivity lower than that of the material of the heating furnace, a sample container disposed at one end of the heat-resistance member, a reference container disposed at the other end of the heat-resistance member, and a differential heat flow detector measuring a difference between the temperature of the sample container and the temperature of the reference container as a measured value.
摘要翻译： 提供了差示扫描量热计，用于在不受来自周围环境的热不规则性和噪声成分的影响的情况下，基于样品容器和参考容器之间的温度差来精确测量测量样品的卡路里变化。 差示扫描量热计包括具有大致H形截面的加热炉，具有近似鼓形的壁部分和近似板状的热流入部分，设置在壁部外部以加热加热炉的加热器，大致 所述棒状耐热构件沿着所述壁部的中心轴线L配置，从所述热流入部的两侧突出大致相同的长度，所述长度相当于材料的导热率低于所述材料的导热率 的加热炉，设置在耐热构件的一端的样品容器，设置在耐热构件的另一端的参考容器和测量样品容器的温度之间的差异的差示热量检测器 和参考容器的温度作为测量值。
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6.发明授权Method of preparing composite from rigid polymer solution and composite film 失效从刚性聚合物溶液和复合膜制备复合材料的方法公开(公告)号：US07208109B2
公开(公告)日：2007-04-24
申请号：US10472948
申请日：2002-03-25
IPC分类号： B29C67/00
CPC分类号： H01M2/1653 , C08J5/00 , C08J9/28 , H01M8/1027 , H01M8/103 , H01M8/1048 , H01M8/1067 , H01M8/1081 , Y02P70/56
摘要： A method of preparing a precursor for a composite having wet strength of 2 to 50 kgf/mm2 and a mean surface void diameter of 0.01 to 2 μm by molding a solution of a rigid polymer having a concentration of 1 to 1.3 times the optical anisotropy lower limit solution concentration C2, thereafter rendering the solution non-flowable by absorbing a coagulant under a condition causing no solvent extraction and thereafter extracting the solvent, and a method of preparing a molecular composite having a mean thickness of 2 to 200 μm by impregnating this precursor for a composite with a solution of a polymer or reactive molecules.
摘要翻译： 一种制备湿强度为2〜50kgf / mm 2的复合材料的前体的方法，其平均表面空隙直径为0.01〜2μm，通过将浓度为 光学各向异性下限溶液浓度C2的1〜1.3倍，然后在不引起溶剂萃取的条件下吸收凝结剂，然后萃取溶剂，使溶液不可流动，制备平均厚度为 通过用聚合物或反应性分子的溶液浸渍该前体用于复合材料，其为2至200μm。
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公开(公告)号：US5294390A
公开(公告)日：1994-03-15
申请号：US985078
申请日：1992-12-03
申请人： Steven Rosenberg , George J. Quarderer, Jr. , Ashish Sen , Masaru Nakagawa , Timothy L. Faley , Myrna Serrano , Yoshihiko Teramoto , Chieh-Chun Chau
发明人： Steven Rosenberg , George J. Quarderer, Jr. , Ashish Sen , Masaru Nakagawa , Timothy L. Faley , Myrna Serrano , Yoshihiko Teramoto , Chieh-Chun Chau
CPC分类号： D01F6/74
摘要： Polybenzazole polymer dopes are spun through a spinneret having more than 2 per cm.sup.2, of orifices in relatively close proximity. The dope filaments formed, then pass through an air gap which has a temperature of 50.degree. to 100.degree. C. and a gas flow sufficient to uniformly reduce the temperature of the dope filaments. The filaments cool in the air gap and are then coagulated.
摘要翻译： 聚苯并恶唑聚合物掺合物通过喷丝板纺丝，每个喷丝头的平均孔数在每厘米2以上，孔口相对靠近。 所形成的涂料长丝然后通过温度为50摄氏度至100摄氏度的气隙和足以均匀降低涂料丝的温度的气流。 细丝在气隙中冷却，然后凝结。
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公开(公告)号：US5525638A
公开(公告)日：1996-06-11
申请号：US500651
申请日：1995-07-12
申请人： Ashish Sen , Yoshihiko Teramoto
发明人： Ashish Sen , Yoshihiko Teramoto
CPC分类号： D01F6/74
摘要： Described is a continuous process for removing polyphosphoric acid from a polybenzazole dope filament, which comprises: (a) contacting the dope filament with water or a mixture of water and polyphosphoric acid under conditions sufficient to reduce the phosphorous content of the filament to less than about 10,000 ppm by weight; and then (b) contacting the dope filament with an aqueous solution of an inorganic base under conditions sufficient to convert at least about 50 percent of the polyphosphoric acid groups present in the filament to a salt of the base and the acid. It has been discovered that contacting the dope filament with a solution of a base after washing the filament to remove most of the residual phosphorous advantageously leads to an improvement in the initial tensile strength of the filament, as well as improved retention of tensile strength and/or molecular weight (of the polybenzazole polymer) following exposure to light and/or high temperatures.
摘要翻译： 描述了从聚吲哚染料丝中除去多磷酸的连续方法，该方法包括：（a）在足以将丝的磷含量降低到小于约的条件下将纺丝原液丝与水或水和多磷酸的混合物接触 10,000重量ppm; 然后（b）在足以将存在于长丝中的至少约50％的多聚磷酸基团转化为碱和酸的盐的条件下，将纺丝原液丝与无机碱的水溶液接触。 已经发现，在洗涤丝之后将涂料丝与碱的溶液接触以去除大部分残留的磷，有利地导致丝的初始拉伸强度的改善，以及改善拉伸强度和/ 或分子量（聚苯并恶唑聚合物的）在暴露于光和/或高温之后。
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公开(公告)号：US4967601A
公开(公告)日：1990-11-06
申请号：US388830
申请日：1989-08-03
申请人： Yoshihiko Teramoto
发明人： Yoshihiko Teramoto
CPC分类号： G01N3/08 , G01N3/18 , G01N2203/0005 , G01N2203/005 , G01N2203/0075 , G01N2203/0092 , G01N2203/0094 , G01N2203/0222 , G01N2203/0617 , G01N2203/0688
摘要： A viscoelastsicity measuring apparatus which includes a pair of sample holders, a sample clamping chuck, a detecting rod, a detecting rod support, a displacement detector, a force generator, a sine-wave generator, an amplifier and a heat source for heating the sample and which operates such that a sine-wave stress is induced in the sample and a strain generated in the sample due to the stress is detected so that the modulus of complex elasticity as a characteristic value of the viscoelasticity of the sample is measured on the basis of the amplitude of the stress and the phase difference between the stress and strain. Further, the sample holders are made resilient so that they can move in a direction normal to the sine-wave stress without loss while the extent of their movement in the direction of the stress is made so small as to be negligible, whereby any deformation of the sample due to a thermal expansion of the sample by heating is eliminated in the direction of the stress and strain detection, thereby improving the viscoelasticity measurement accuracy at a temperature different from the temperature at which the sample is set.
摘要翻译： 一种粘弹性测量装置，包括一对样品保持器，样品夹紧卡盘，检测棒，检测棒支架，位移检测器，力发生器，正弦波发生器，放大器和用于加热样品的热源 并且其操作使得在样品中引起正弦波应力，并且检测由于应力而在样品中产生的应变，使得基于样品的粘弹性的特征值的复合弹性模量基于 的应力幅度和应力与应变之间的相位差。 此外，样品保持器制成弹性，使得它们可以在没有损失的情况下沿着垂直于正弦波应力的方向移动，同时它们在应力方向上的移动程度如此小以致可以忽略，从而任何变形 在应力和应变检测的方向上消除了通过加热而导致样品的热膨胀的样品，从而在不同于设定样品的温度的温度下提高粘弹性测量精度。
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公开(公告)号：US20050003182A1
公开(公告)日：2005-01-06
申请号：US10486110
申请日：2002-08-02
申请人： Godo Sakamoto , Syoji Oda , Yoshihiko Teramoto
发明人： Godo Sakamoto , Syoji Oda , Yoshihiko Teramoto
CPC分类号： D01F6/04 , Y10T428/2913 , Y10T428/2967
摘要： A high strength polyethylene filament having tenacity of at least 15 cN/dTex, which comprises a polyethylene having a weight-average molecular weight of 300,000 or less and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.0 or less as determined in a state of the filament, and containing 0.01 to 3.0 branched chains per 1,000 backbone carbon atoms. When cut fibers are obtained by cutting the polyethylene filament, a rate of dispersion-defective fibers is 2.0% or less.
摘要翻译： 具有至少15cN / dTex的强度的高强度聚乙烯长丝，其包含重均分子量为300,000以下的聚乙烯和重均分子量与数均分子量的比（Mw / Mn）为4.0以下，在丝状态下测定，每1000个骨架碳原子含有0.01〜3.0个支链。 当通过切割聚乙烯长丝获得切割的纤维时，分散缺陷纤维的速率为2.0％以下。
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