公开(公告)号：US09211509B2

公开(公告)日：2015-12-15

申请号：US14117402

申请日：2012-06-14

申请人： Masao Higashi ,  Junsuke Morita ,  Tooru Kitagawa

发明人： Masao Higashi ,  Junsuke Morita ,  Tooru Kitagawa

IPC分类号： B01D39/00 ,  B01D39/14 ,  B01D33/21 ,  B01D63/02 ,  C02F1/44 ,  B01D71/68 ,  B01D69/02 ,  B01D69/14 ,  B01D61/02

CPC分类号： B01D71/68 ,  B01D61/025 ,  B01D69/02 ,  B01D69/141 ,  C02F1/441

摘要： To provide a reverse osmosis membrane where both salt rejection rate and water permeability required for wastewater treatment are achieved in a high level in spite of using the materials having excellent resistance to chemicals (resistance to alkali and to chlorine). A reverse osmosis membrane for wastewater treatment comprising a sulfonated poly(arylene ether sulfone) polymer containing a constituting component represented by the following formula [I], characterized in that, in a proton nuclear magnetic resonance spectrum where water molecules in the membrane are measured using the reverse osmosis membrane in a water-containing state, the relation between the chemical shift A (ppm) of spectral peak top derived from bound water and the chemical shift B (ppm) of spectral peak top derived from bulk water satisfies (B−0.36)≦A

摘要翻译： 为了提供反渗透膜，尽管使用具有优异的抗化学性（耐碱性和耐氯性）的材料，但废水处理所需的盐渗透率和水渗透性均达到高水平。 一种用于废水处理的反渗透膜，其包含含有由下式[I]表示的构成成分的磺化聚（亚芳基醚砜）聚合物，其特征在于，在质子核磁共振谱中，使用 含水状态的反渗透膜，从结合水衍生的光谱峰顶的化学位移A（ppm）与衍生自散装水的光谱峰顶的化学位移B（ppm）之间的关系满足（B-0.36） ）＆nlE; A <（B-0.30）：其中X是H或一价阳离子种类，n是10-50的整数。

公开(公告)号：US20050045545A1

公开(公告)日：2005-03-03

申请号：US10492480

申请日：2002-10-11

申请人： Tooru Kitagawa

发明人： Tooru Kitagawa

IPC分类号： D01F6/74 ,  D01F6/94 ,  C02F1/24

CPC分类号： B82Y30/00 ,  D01F6/74 ,  D01F6/94 ,  Y10S977/753 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2927 ,  Y10T428/2967

摘要： A polybenzazole fiber having a compression strength is not less than 0.5 GPa, which contains a carbon nanotube having an outer diameter of not more than 20 nm and a length of 0.5 μm -10 μm inside the fiber in a proportion of 1-15% by weight. Such polybenzazole fiber-has conventionally unavailable high strength and high elastic modulus at the same time, as well as a specific fine fiber structure, and is useful as various industrial materials.

摘要翻译： 压缩强度的聚吲哚纤维不小于0.5GPa，其含有外径在20nm以下的碳纳米管，纤维内长度为0.5〜10μm，比例为1-15％，比例为 重量。 这样的聚吲唑纤维，在同时具有高强度和高弹性模量，以及特定的细纤维结构，并且可用作各种工业材料。

公开(公告)号：US4852633A

公开(公告)日：1989-08-01

申请号：US199113

申请日：1988-05-26

申请人： Toshio Teshima ,  Tooru Kitagawa ,  Mikio Suzuki ,  Toshio Masaoka ,  Takashi Mori ,  Kazutaka Okimoto

发明人： Toshio Teshima ,  Tooru Kitagawa ,  Mikio Suzuki ,  Toshio Masaoka ,  Takashi Mori ,  Kazutaka Okimoto

IPC分类号： B22D11/10 ,  B22D41/50

CPC分类号： B22D41/50

摘要： An immersion nozzle for continuous casting of steel comprises an immersion nozzle body for introducing molten steel supplied form a tundish into a continuous casting mold, the immersion nozzle body having two exit ports located symmetrically about a vertical center axis of the immersion nozzle body at a lower portion thereof and being immersed in the molten steel in the mold. The immersion nozzle body has a bore which includes first and second sectional areas, the first sectional area being at and below the two exit ports and being smaller than the second sectional area, the second sectional area being above the two exit ports, and the molten steel passing through the bore and out through the two exit ports. The bore has an inner diameter at the level of the two exit ports which is substantially equal to a horizontal inner length or diameter of the two exit ports. A ratio represented by (A)/(B) is from 0.5 to 0.8, where (A) is the area of the first sectional area and (B) is the area of the second sectional area.

公开(公告)号：US08580380B2

公开(公告)日：2013-11-12

申请号：US12438230

申请日：2007-08-22

申请人： Tooru Kitagawa ,  Kohei Kiriyama ,  Seiji Watanuki ,  Yoshihiko Teramoto ,  Yusuke Shimizu

发明人： Tooru Kitagawa ,  Kohei Kiriyama ,  Seiji Watanuki ,  Yoshihiko Teramoto ,  Yusuke Shimizu

IPC分类号： B32B19/00 ,  B32B7/02 ,  C08G73/06

CPC分类号： D01F6/74 ,  D01D5/06

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。

公开(公告)号：US07811673B2

公开(公告)日：2010-10-12

申请号：US10582624

申请日：2004-03-12

申请人： Godo Sakamoto ,  Tooru Kitagawa ,  Yasuo Ohta ,  Yasunori Fukushima ,  Hiroki Murase

发明人： Godo Sakamoto ,  Tooru Kitagawa ,  Yasuo Ohta ,  Yasunori Fukushima ,  Hiroki Murase

IPC分类号： D01F6/00

CPC分类号： D01F6/04 ,  Y10T428/12625 ,  Y10T428/2933 ,  Y10T428/2967

摘要： To provide a novel high strength polyethylene multifilament which consists of a plurality of filaments having high strengths and uniform internal structures, and showing a narrow variation in the strengths of the monofilaments, and which has been difficult to be provided by the conventional gel spinning method.A high strength polyethylene multifilament consisting of a plurality of filaments which are characterized in that the crystal size of monoclinic crystal is 9 nm or less; the stress Raman shift factor is −5.0 cm−1/(cN/dTex) or more; the average strength is 20 CN/dTex or higher; the knot strength retention of each monofilament is 40% or higher; CV indicating a variation in the strengths of the monofilaments is 25% or lower; the elongation at break is from 2.5% inclusive to 6.0% inclusive; the fineness of each filament is 10 dTex or less; and the melting point of the filaments is 145° C. or higher.

摘要翻译： 提供一种新颖的高强度聚乙烯复丝，其由具有高强度和均匀内部结构的多根长丝组成，并且显示出单丝强度的变化很小，并且由于常规的凝胶纺丝法难以提供。 由多根长丝组成的高强度聚乙烯复丝，其特征在于单斜晶体的晶体尺寸为9nm以下; 应力拉曼位移系数为-5.0 cm-1 /（cN / dTex）以上; 平均强度为20 CN / dTex以上; 每根单丝的结强度保持率为40％以上; 表示单丝强度变化的CV为25％以下; 断裂伸长率为2.5％〜6.0％; 每根细丝的细度为10 dTex以下; 长丝的熔点为145℃以上。

公开(公告)号：US07141301B2

公开(公告)日：2006-11-28

申请号：US11106659

申请日：2005-04-15

申请人： Godo Sakamoto ,  Tooru Kitagawa ,  Syoji Oda ,  Yasuo Ohta

发明人： Godo Sakamoto ,  Tooru Kitagawa ,  Syoji Oda ,  Yasuo Ohta

IPC分类号： D01F6/00

CPC分类号： D01F6/04 ,  D07B1/025 ,  D07B2205/2014 ,  Y10T428/2913 ,  Y10T428/2967 ,  D07B2801/10

摘要： A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 Å or less is observed in an X-ray small angle scattering pattern is disclosed.

摘要翻译： 一种高强度聚乙烯长丝，其中所述长丝的单丝的细度为1.5dtex以下，拉伸强度为15cN / dtex以上，拉伸弹性模量为300cN / dtex以上，分散速度 公开了从长丝切割的有效纤维为2％以下，高强度聚乙烯长丝，其中所述长丝的拉伸强度为15cN / dtex以上，拉伸弹性模量为300cN / dtex以上， 并且在X射线小角度散射图案中观察到具有100埃或更小的长周期结构。

公开(公告)号：US6040050A

公开(公告)日：2000-03-21

申请号：US097997

申请日：1998-06-16

申请人： Tooru Kitagawa ,  Michio Ishitobi

发明人： Tooru Kitagawa ,  Michio Ishitobi

IPC分类号： D01F6/74 ,  B02G3/00

CPC分类号： D01F6/74 ,  Y10T428/2913 ,  Y10T428/2967

摘要： A polybenzazole fiber obtained through heat treatment, which has a high tensile modulus of not less than 300 GPa and a tensile strength of not less than 5.0 GPa, said fiber being characterized by an X-ray analysis by a fine structure thereof of at least one of the following (1) and (2):(1) a crystal orientation parameter of not more than 0.009 as determined by a wide-angle X-ray diffraction method,(2) absence of an equatorial streak, a two-point pattern or a four-point pattern in a small-angle X-ray scattering; and a process of manufacturing a polybenzazole fiber which comprises extruding a dope comprising a polybenzazole polymer and a nonoxidative acid capable of dissolving said polymer, from a spinneret into a non coagulative gas to give spun filaments, introducing said filaments into a coagulation bath to extract the acid contained in said filaments, neutralizing the filaments, washing the filaments, adjusting a water content of the filaments to not more than 100%, applying a pretension to the filaments at an optional stage after introduction into a coagulation bath and before heat treatment, and heat treating the filaments at a temperature of not less than 500.degree. C. under a certain tension to give the fiber. The polybenzazole fiber of the present invention has a specific fine structure of fiber, as mentioned above, and also has a high tensile strength and a high tensile modulus heretofore unavailable. The inventive polybenzazole fiber can be manufactured at an industrial scale with ease. Thus, the inventive fiber is tremendously effective in expanding the field of possible utilization as an industrial material with high practical advantages.

摘要翻译： 通过热处理获得的聚吲哚纤维，其具有不低于300GPa的高拉伸模量和不小于5.0GPa的拉伸强度，所述纤维的特征在于通过其至少一种的精细结构的X射线分析 （1）和（2）：（1）通过广角X射线衍射法测定的晶体取向参数不大于0.009，（2）不存在赤道条纹， 小角度X射线散射中的两点图案或四点图案; 以及制造聚吲哚纤维的方法，其包括将包含聚吲哚聚合物和能够溶解所述聚合物的非氧化酸的涂料从喷​​丝头挤出到非凝固性气体中以产生纺丝丝，将所述长丝引入凝固浴中以提取 所述长丝中含有的酸，中和长丝，洗涤长丝，将长丝的水分调节至不超过100％，在引入凝固浴中并在热处理之前的任选阶段向长丝施加预张力，以及 在一定张力下在不低于500℃的温度下热处理长丝，得到纤维。 本发明的聚吲哚纤维如上所述具有特定的纤维结构，并且还具有高拉伸强度和高拉伸模量。 本发明的聚吲哚纤维可以容易地以工业规模制造。 因此，本发明的纤维在扩大作为具有高实用性的工业材料的可能利用领域方面是非常有效的。

公开(公告)号：US20100178830A1

公开(公告)日：2010-07-15

申请号：US12305722

申请日：2007-06-19

申请人： Masahiko Nakamori ,  Satoshi Maeda ,  Tooru Kitagawa ,  Hisato Kobayashi ,  Yasuo Ohta

发明人： Masahiko Nakamori ,  Satoshi Maeda ,  Tooru Kitagawa ,  Hisato Kobayashi ,  Yasuo Ohta

IPC分类号： D04H1/56 ,  D04H1/72

CPC分类号： D04H3/16 ,  D01D5/0038 ,  D01F6/74 ,  D04H1/42 ,  D04H1/4334 ,  D04H1/4382 ,  D04H1/72 ,  Y10T442/626

摘要： A non-woven fabric which is excellent in thermal resistance, mechanical strength, and thermal dimensional stability for applications exposed to high temperature circumstance and has an extremely large surface area and exhibit an excellent filter performance is obtained. The non-woven fabric is composed of polyimide fibers which are obtained by polycondensation of at least an aromatic tetracarboxylic acid and an aromatic diamine having a benzoxazole structure and have a fiber diameter in the range of 0.001 μm to 1 μm. The non-woven fabric is obtained by the steps of preparing a polyamic acid by polycondensation of an aromatic tetracarboxylic acid and an aromatic diamine having a benzoxazole structure, and electro-spinning the polyamic acid to form a polyimide precursor non-woven fabric; and imidizing a polyimide precursor fiber bundle.

摘要翻译： 获得了耐高温环境下使用的耐热性，机械强度和热尺寸稳定性优异，表面积极高，过滤性能优异的无纺布。 无纺布由聚酰亚胺纤维构成，该聚酰亚胺纤维通过至少一种芳香族四羧酸和具有苯并恶唑结构的芳香族二胺的缩聚得到，纤维直径在0.001μm〜1μm的范围内。 通过以下步骤获得无纺织物：通过芳族四羧酸和具有苯并恶唑结构的芳族二胺的缩聚制备聚酰胺酸，并将聚酰胺酸电纺丝以形成聚酰亚胺前体无纺织物; 并酰亚胺化聚酰亚胺前体纤维束。

公开(公告)号：US07649025B2

公开(公告)日：2010-01-19

申请号：US10530965

申请日：2003-10-16

申请人： Kota Kitamura ,  Yoshimitsu Sakaguchi ,  Shigenori Nagahara ,  Shiro Hamamoto ,  Naohiko Takimoto ,  Hideki Sugihara ,  Satoshi Takase ,  Tooru Kitagawa ,  Miyako Noshiro

发明人： Kota Kitamura ,  Yoshimitsu Sakaguchi ,  Shigenori Nagahara ,  Shiro Hamamoto ,  Naohiko Takimoto ,  Hideki Sugihara ,  Satoshi Takase ,  Tooru Kitagawa ,  Miyako Noshiro

IPC分类号： C08J5/20 ,  H01M4/00 ,  H01M8/08

CPC分类号： C08J5/2256 ,  C08J2381/06 ,  H01M8/0289 ,  H01M2300/0082 ,  H01M2300/0094

摘要： A composite ion exchange membrane having a high swelling resistance and being superior in mechanical strength and ion conductivity can be provided by means of an composite ion exchange membrane including an ion exchange resin composition and a support membrane having a continuous pore penetrating the support membrane, wherein the support membrane is one which accepts the ion exchange resin composition within the pore, and wherein the ion exchange resin composition is one which contains an ion exchange resin containing, as a main component, an aromatic polyether and/or its derivative, the aromatic polyether being obtained by mixing a compound having a specific structure, an aromatic dihalogenated compound and a bisphenol compound with a carbonate and/or a bicarbonate of an alkali metal and polymerizing the mixture in an organic solvent.

摘要翻译： 具有高抗溶胀性和机械强度和离子传导性优异的复合离子交换膜可以通过包括离子交换树脂组合物的复合离子交换膜和穿透支撑膜的连续孔的支撑膜来提供，其中 支撑膜是在孔内接受离子交换树脂组合物的离子交换树脂组合物，其中离子交换树脂组合物是含有作为主要成分的芳族聚醚和/或其衍生物的离子交换树脂， 通过将具有特定结构的化合物，芳族二卤化合物和双酚化合物与碱金属的碳酸盐和/或碳酸氢盐混合并将该混合物在有机溶剂中聚合而获得。

公开(公告)号：US20080249280A1

公开(公告)日：2008-10-09

申请号：US11795556

申请日：2005-06-24

申请人： Katsuhiko Kageyama ,  Tooru Kitagawa ,  Kenichi Funaki ,  Masaki Fuchikami ,  Kazuo Katayose ,  Takahiro Nakajima ,  Toshiyuki Tsuchiya ,  Satoru Nakagawa ,  Fumikazu Yoshida ,  Haruhiko Kohyama ,  Naoki Watanabe

发明人： Katsuhiko Kageyama ,  Tooru Kitagawa ,  Kenichi Funaki ,  Masaki Fuchikami ,  Kazuo Katayose ,  Takahiro Nakajima ,  Toshiyuki Tsuchiya ,  Satoru Nakagawa ,  Fumikazu Yoshida ,  Haruhiko Kohyama ,  Naoki Watanabe

IPC分类号： C08G63/00

CPC分类号： C08G63/84 ,  C08J5/18 ,  C08J2367/02 ,  D01F6/62 ,  Y10T428/13 ,  Y10T428/1352 ,  Y10T428/162 ,  Y10T428/249921

摘要： This invention provides a polyester and a polyester molded product, which, while maintaining color tone, transparency, and thermal stability, can realize a high polycondensation rate, are less likely to cause the production of polycondensation catalyst-derived undesired materials, and can simultaneously meet both quality and cost effectiveness requirements, which can exhibit the characteristic features, for example, in the fields of ultrafine fibers, high transparent films for optical use, or ultrahigh transparent molded products. These advantages can be realized by using, in the production of a polyester in the presence of an aluminum compound-containing polyester polycondensation catalyst, an aluminum compound having an absorbance of not more than 0.0132 as measured in the form of an aqueous aluminum compound solution, prepared by dissolving the aluminum compound in pure water to give a concentration of 2.7 g/liter in terms of the amount of aluminum element, under conditions of cell length 1 cm and wavelength 680 nm.

摘要翻译： 本发明提供一种聚酯和聚酯成型体，其在保持色调，透明性和热稳定性的同时，可以实现高缩聚率，不太可能导致产生缩聚催化剂衍生的不需要的材料，并且可以同时满足 质量和成本效益要求，其可以表现出特征，例如在超细纤维，用于光学用途的高透明膜或超高透明模制品的领域。 这些优点可以通过在含铝化合物的聚酯缩聚催化剂的存在下制造聚酯，通过以铝化合物水溶液的形式测定的吸光度不大于0.0132的铝化合物来实现， 通过将铝化合物溶解在纯水中，在细胞长度为1cm和波长680nm的条件下，以铝元素的量计，浓度为2.7g /升。