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    Process of making vinylidene fluoride porous membrane
    2.
    发明授权
    Process of making vinylidene fluoride porous membrane 失效
    制造偏二氟乙烯多孔膜的工艺

    公开(公告)号：US5626805A

    公开(公告)日：1997-05-06

    申请号：US477888

    申请日：1995-06-07

    申请人： Kazuhiro Meguro ,  Toshiya Mizuno ,  Yoshikiti Teramoto ,  Hiroshi Sato

    发明人： Kazuhiro Meguro ,  Toshiya Mizuno ,  Yoshikiti Teramoto ,  Hiroshi Sato

    IPC分类号： B01D69/02 ,  B01D71/34 ,  H01M2/16 ,  B29C67/20

    CPC分类号： B01D69/02 ,  B01D71/34 ,  B29C47/0021 ,  B29C47/0057 ,  B29C47/884 ,  B29C47/8845 ,  H01M2/1653 ,  B29C47/14 ,  Y10T428/24273 ,  Y10T428/24298 ,  Y10T428/24942 ,  Y10T428/249953 ,  Y10T428/249961 ,  Y10T428/249975 ,  Y10T428/249978 ,  Y10T428/3154

    摘要： A method of making a polyvinylidene fluoride porous membrane having an asymmetric structure, excellent mechanical strength and a narrow range of pore diameter distribution comprises: blending (i) 100 parts by weight of a vinylidene fluoride resin having an inherent viscosity, measured in dimethylformamide at a concentration of 0.4 g/dl and a temperature of 30.degree. C., of 1.4 to 15.0, (ii) 30 to 250 parts by weight of an aliphatic polyester plasticizer and, optionally and preferably, (iii) 1 to 50 parts by weight of a good solvent for vinylidene fluoride resin, to form a composition; extruding the so-formed composition to form a molten film; cooling one surface of the molten film by contact with a chill roll having a temperature of not more than 150.degree. C. and air-cooling the other surface to make a solid film; and extracting the plasticizer from the solid film.

    摘要翻译： 制备具有不对称结构，优异的机械强度和窄孔径分布范围的聚偏二氟乙烯多孔膜的方法包括：（i）将100重量份具有特性粘度的偏二氟乙烯树脂与二甲基甲酰胺中的 浓度为0.4g / dl，温度为30℃，为1.4〜15.0，（ii）30〜250重量份的脂肪族聚酯增塑剂，任选优选（iii）1〜50重量份的 用于偏二氟乙烯树脂的良好溶剂，以形成组合物; 挤出所形成的组合物以形成熔融膜; 通过与温度不超过150℃的冷却辊接触来冷却熔融膜的一个表面，并对另一个表面进行空气冷却以制成固体膜; 并从固体膜中提取增塑剂。

    Porous Membrane for Water Treatment and Method of Manufacturing the Same
    3.
    发明申请
    Porous Membrane for Water Treatment and Method of Manufacturing the Same 审中-公开
    水处理多孔膜及其制造方法

    公开(公告)号：US20080078718A1

    公开(公告)日：2008-04-03

    申请号：US11630896

    申请日：2005-06-27

    申请人： Yasuhiro Tada ,  Shingo Taniguchi ,  Masayuki Hino ,  Takeo Takahashi ,  Kenichi Suzuki ,  Toshiya Mizuno

    发明人： Yasuhiro Tada ,  Shingo Taniguchi ,  Masayuki Hino ,  Takeo Takahashi ,  Kenichi Suzuki ,  Toshiya Mizuno

    IPC分类号： B01D71/34 ,  B01D69/08 ,  B01D71/38 ,  C02F1/44

    CPC分类号： B01D71/34 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/38 ,  B01D2323/20 ,  B01D2325/24 ,  B01D2325/30

    摘要： A porous membrane for water treatment of the present invention is made of a resin composition containing 100 parts by weight of a polyvinylidene fluoride based resin, and 5 to 13 parts by weight of a polyvinyl alcohol based polymer having a degree of saponification of 10 to 80 mol %. The porous membrane has a permeation wetting tension of 38 to 72 mN/m, and a tensile strength of 7 to 20 MPa, and thus is characterized by having the excellent mechanical strength and wettability. This is a porous membrane for water treatment essentially containing the polyvinylidene fluoride based resin, which allows water treatment to be highly efficiently performed on raw water (river water, industrial waste water, and the like), in particular. The porous membrane is manufactured, firstly, by melt-extruding a mixture composition containing a polyvinylidene fluoride based resin, a polyvinyl alcohol based polymer, a plasticizer, and a solvent, and then by extracting the plasticizer and the solvent from the substance thus extruded.

    摘要翻译： 本发明的水处理用多孔膜由含有100重量份聚偏二氟乙烯类树脂的树脂组合物和5〜13重量份皂化度为10〜80的聚乙烯醇系聚合物 mol％。 多孔膜的渗透润湿张力为38〜72mN / m，拉伸强度为7〜20MPa，其特征在于具有优异的机械强度和润湿性。 这是一种基本上含有聚偏二氟乙烯类树脂的水处理用多孔膜，特别是能够对原水（河水，工业废水等）高效地进行水处理。 首先，通过熔融挤出含有聚偏二氟乙烯系树脂，聚乙烯醇类聚合物，增塑剂和溶剂的混合物组合物，然后从由此挤出的物质中提取增塑剂和溶剂来制造多孔膜。

    Vinylidene fluoride based resin porous hollow yarn and method for production thereof
    4.
    发明申请
    Vinylidene fluoride based resin porous hollow yarn and method for production thereof 有权
    偏二氟乙烯系树脂多孔中空丝及其制造方法

    公开(公告)号：US20070039872A1

    公开(公告)日：2007-02-22

    申请号：US10574111

    申请日：2004-09-24

    申请人： Yasuhro Tada ,  Takeo Takahashi ,  Masayuki Hino ,  Toshiya Mizuno ,  Kosuke Abe

    发明人： Yasuhro Tada ,  Takeo Takahashi ,  Masayuki Hino ,  Toshiya Mizuno ,  Kosuke Abe

    IPC分类号： B01D69/00

    CPC分类号： B01D67/002 ,  B01D67/0027 ,  B01D67/003 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/08 ,  B01D71/34 ,  B01D2323/20 ,  B01D2325/12 ,  B01D2325/20 ,  D01F6/12

    摘要： There is provided a porous hollow fiber of vinylidene fluoride resin which has a water permeation rate that is large per fiber and little dependent on the length, has a large treatment capacity per volume of a filtering module, and is therefore suitable as a microfilter element. That is, a porous hollow fiber, comprising a vinylidene fluoride resin having a weight-average molecular weight of at least 3×105, having a water permeation rate F (m3/m2·day) measured at a pressure difference of 100 kPa and at a water temperature of 25° C. in a range of test length L=0.2-0.8(m) and expressed in a linear relationship with the test length L of: F=C·L+F0 (formula 1) and satisfying requirements (a)-(d) shown below: (a) a average slope C (/day) of: −20≦C≦0, (b) an intercept (basic permeability) F0 (m3/m2·day) of: F0≧30, (c) a relation between F0 (m3/m2·day) and an average pore diameter P (μm) according to half-dry method of F0/P≧300, and (d) an outer diameter of at most 3 mm.

    摘要翻译： 提供了一种偏氟乙烯树脂的多孔中空纤维，其具有每个纤维的水渗透速率大，并且几乎不依赖于长度，每个体积的过滤组件具有大的处理能力，因此适合作为微过滤器元件。 也就是说，一种多孔中空纤维，其包含重均分子量为至少3×10 5的偏二氟乙烯树脂，其具有水渗透速率F（m 3 / 在测试长度L = 0.2-0.8（m）的范围内，在100kPa的压力差和25℃的水温下测量，并以线性关系表示， 测试长度L为：F = C.L + F 0（式1），满足以下所示的要求（a） - （d）：（a）平均斜率C（/天） 的范围：-20 <= C <= 0，（b）截距（基本磁导率）F 0（m 3）/ m 2。 天）为：F <0 = 30，（c）F 0 3 / m 2之间的关系， SUP> .day），根据F0.00 / P> 300的半干法的平均孔径P（母体），（d）外径至多3mm。

    Vinylidene fluoride resin fiber and process for producing the same
    5.
    发明授权
    Vinylidene fluoride resin fiber and process for producing the same 失效
    偏二氟乙烯树脂纤维及其制造方法

    公开(公告)号：US5658663A

    公开(公告)日：1997-08-19

    申请号：US563055

    申请日：1995-11-27

    申请人： Toshiya Mizuno ,  Seiichi Ohira ,  Mitsuru Itoh ,  Kazuyuki Munakata ,  Satoshi Hashimoto

    发明人： Toshiya Mizuno ,  Seiichi Ohira ,  Mitsuru Itoh ,  Kazuyuki Munakata ,  Satoshi Hashimoto

    IPC分类号： D01F6/12 ,  D01F6/32 ,  D02G3/00 ,  C08F4/00

    CPC分类号： D01F6/12 ,  Y10T428/2913 ,  Y10T428/2967

    摘要： A vinylidene fluoride resin fiber have a diameter of not less than 0.5 mm, and satisfy the formulae (1) and (2):Ra.gtoreq.0.5 (1)Rb.gtoreq.(Ra+Rc)/3.0 (2)wherein Rc represents a ratio of absorbance at 765 cm.sup.-1 of .alpha.-type crystal to that at 843 cm.sup.-1 of .beta.-type crystal at the center point of a fiber cross-section, Rb represents a ratio of absorbance at 765 cm.sup.-1 of .alpha.-type crystal to that at 843 cm.sup.-1 of .beta.-type crystal at the point of r/3 from the center point thereof, and Ra represents a ratio of absorbance at 765 cm.sup.-1 of .alpha.-type crystal to that at 843 cm.sup.-1 of .beta.-type crystal at the point of 2r/3 from the center point thereof, wherein r is a radius of the fiber cross-section.

    摘要翻译： 偏二氟乙烯树脂纤维的直径不小于0.5mm，满足式（1）和（2）：Ra> / = 0.5（1）Rb> / =（Ra + Rc）/3.0（2）其中 Rc表示在纤维横截面的中心点的α型晶体的765cm -1处的吸光度与在843cm -1的β型晶体的吸光度的比率，Rb表示在765cm -1处的吸光度比 的α型晶体与其中心点r / 3点处的843cm-1的β型晶体相比，Ra表示α型晶体在765cm -1处的吸光度与 843cm-1的β型晶体在距中心点2r / 3处，其中r是光纤截面的半径。

    Heat-resistant stretched film and production process thereof
    6.
    发明授权
    Heat-resistant stretched film and production process thereof 失效
    耐热拉伸膜及其制造方法

    公开(公告)号：US5286814A

    公开(公告)日：1994-02-15

    申请号：US690318

    申请日：1991-04-26

    申请人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Takeshi Saito ,  Juichi Wakabayashi ,  Yoshikatsu Satake ,  Ken Kashiwadate ,  Takayuki Katto

    发明人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Takeshi Saito ,  Juichi Wakabayashi ,  Yoshikatsu Satake ,  Ken Kashiwadate ,  Takayuki Katto

    IPC分类号： C08G75/02 ,  C08L81/02 ,  H05K1/03 ,  C08G75/14 ,  C08F283/00

    CPC分类号： C08G75/0245 ,  C08G75/024 ,  C08L81/02 ,  H05K1/0333

    摘要： A heat-resistant stretched film is obtained by stretching a resin composition comprising 100 parts by weight of a poly(arylene sulfide) of a substantially linear structure and 5 to less than 100 parts by weight of a melt-stable poly(arylene thioether-ketone). The poly(arylene sulfide) has a melt viscosity of at least 1,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1. The poly(arylene thioether-ketone) has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- groups are bonded in the para position to each other through the benzene ring, and has the following physical properties (a)-(c):(a) a melting point, Tm being 310.degree.-380.degree. C.;(b) a melt crystallization temperature, Tmc (420.degree. C./10 min) being at least 210.degree. C. and a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) being at least 10 J/g; and(c) a reduced viscosity being 0.3-2 dl/g at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98% sulfuric acid.

    摘要翻译： 通过拉伸含有100重量份基本上线性结构的聚（亚芳基硫醚）和5至小于100重量份熔体稳定的聚（亚芳基硫醚 - 酮）的树脂组合物来获得耐热拉伸膜 ）。 聚（亚芳基硫醚）在310℃下测得的熔体粘度至少为1,000泊，剪切速率为200秒-1。 聚（亚芳基硫醚酮）具有主要的式（*化学结构*）的重复单元，其中-CO-和-S-基通过苯环彼此键合在对位，并且具有以下物理 性质（a） - （c）：（a）熔点，Tm为310-380℃。 （b）熔融结晶温度Tmc（420℃/分钟）至少为210℃，残余熔融结晶焓（ΔH）为420℃至10℃ /G; 和（c）在25℃下的比浓粘度为0.3-2dl / g，在98％硫酸中的浓度为0.5g / dl。

    Poly(arylene sulfide) sheet and production process thereof
    9.
    发明授权
    Poly(arylene sulfide) sheet and production process thereof 失效
    聚（亚芳基硫醚）片及其制备方法

    公开(公告)号：US5013823A

    公开(公告)日：1991-05-07

    申请号：US442109

    申请日：1989-11-28

    申请人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Juichi Wakabayashi ,  Takeshi Saito

    发明人： Toshiya Mizuno ,  Yoshikichi Teramoto ,  Juichi Wakabayashi ,  Takeshi Saito

    IPC分类号： B29C47/00 ,  B29C47/88 ,  B29D7/01

    CPC分类号： B29D7/01 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/8845 ,  B29K2081/00 ,  B29K2995/0041

    摘要： A poly(arylene sulfide) sheet excellent in planarity and smoothness is formed of a poly(arylene sulfide) having a melt viscosity, .eta.* of 1,000-25,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1, and a melt crystallization temperature, Tc.sub.2 or 170.degree.-240.degree. C., wherein Tc.sub.2 is an exothermic peak temperature of crystallization which appears upon the measurement by a differential scanning calorimeter at a cooling rate of 10.degree. C./min after the polymer is heated from 23.degree. C. to 380.degree. C. at a rate of 10.degree. C./min and then held for 3 minutes at 380.degree. C. It has a surface roughness, Ra of 0.09 .mu.m or less on at least one side thereof and a degree of crystallization of at least 5%. Its number of flexings to break, Y satisfies the following equation (I):log Y.gtoreq.7.11-2.34log t (I)wherein t means a thickness (.mu.m) of the sheet. The sheet is produced by melt-extruding the poly(arylene sulfide) through a slit die into a sheet-like form and then cooling and crystallizing the sheet on a casting roll. The temperature, T (.degree.C.) of the casting roll is controlled to a temperature in a range satisfying the following equation (II):120.ltoreq.T.ltoreq.190-0.02t (II)wherein t means a thickness (.mu.m) of the sheet, thereby conducting the cooling and the crystallization of the sheet at one stage.