公开(公告)号：US06171497B2

公开(公告)日：2001-01-09

申请号：US08786628

申请日：1997-01-21

申请人： Masahiko Hirose ,  Tomomi Ohara ,  Masaaki Ando

发明人： Masahiko Hirose ,  Tomomi Ohara ,  Masaaki Ando

IPC分类号： B01D7156

CPC分类号： B01D67/0093 ,  B01D69/125 ,  B01D2323/30

摘要： A module that can be practically used at a pressure of about 3 kgf/cm2 is obtained by treating a polyamide based reverse osmosis membrane with an oxidizing agent. A composite reverse osmosis membrane comprises a thin film which is a polyamide based skin layer obtained by polycondensation of a compound having two or more reactive amino groups and a polyfunctional acid halide compound having two or more reactive acid halide groups, and a microporous support for supporting the thin film. The polyamide based skin layer formed on the surface of the membrane has a mean roughness of 50 nm or more. The composite reverse osmosis membrane is treated with an oxidizing agent. A salt rejection of 99% or more and a flux of 1.5 m3/m2·day or more are obtained when evaluated by using a solution having pH 6.5 containing 500 ppm of sodium chloride at an operating pressure of 7.5 kgf/cm2 and a temperature of 25° C.

摘要翻译： 通过用氧化剂处理聚酰胺类反渗透膜，可以在约3kgf / cm 2的压力下实际使用的模块。 复合反渗透膜包括通过具有两个或更多个反应性氨基的化合物和具有两个或更多个反应性酰卤基团的多官能酰卤化合物缩聚获得的聚酰胺基皮层的薄膜和用于支撑的多孔载体 薄膜。 形成在膜表面的聚酰胺类皮肤层的平均粗糙度为50nm以上。 复合反渗透膜用氧化剂处理。 当在7.5kgf / cm 2的操作压力下使用含有500ppm氯化钠的pH6.5的溶液进行评价时，可以获得99％以上的脱盐率和1.5m 3 / m 2·天以上的通量， 25°C

公开(公告)号：US6024873A

公开(公告)日：2000-02-15

申请号：US819326

申请日：1997-03-18

申请人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

发明人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

IPC分类号： B01D61/02 ,  B01D69/12 ,  B01D71/64 ,  B01D29/00

CPC分类号： B01D69/125

摘要： The present invention provides a composite reverse osmosis membrane and a reverse osmosis membrane module using the same, having a high salt rejection, high water permeability, and a high rejection of organic substances such as isopropyl alcohol, which can be used to remove organic substances as well as ionic substances with suitable efficiency and economy. The highly permeable composite reverse osmosis membrane of the invention can be produced by adding alcohols or ethers or the like having a solubility parameter of 8-14 (cal/cm.sup.3).sup.1/2 to the solution containing at least one compound selected from the group consisting of a compound having two or more reactive amino groups and a polyfunctional acid halide having two or more reactive acid halide groups which is used when conducting the polycondensation of a compound having two or more reactive amino groups and a polyfunctional acid halide having two or more reactive acid halide groups on a microporous support.

摘要翻译： 本发明提供一种复合反渗透膜和使用该复合反渗透膜组件的反渗透膜组件，其具有高的耐盐析性，高透水性，以及异丙醇等有机物质的高排斥性，可用于除去有机物质作为 以及具有合适效率和经济性的离子物质。 本发明的高渗透性复合反渗透膜可以通过将溶解度参数为8-14（cal / cm 3）+ E，fra 1/2 + EE的醇或醚等加入到含有至少一种 选自具有两个或更多个反应性氨基的化合物和具有两个或多个反应性酰卤基团的多官能酰卤的化合物，其在进行具有两个或多个反应性氨基的化合物的缩聚时使用的多官能酸 在微孔载体上具有两个或多个反应性酰卤基团的卤化物。

公开(公告)号：US07081202B2

公开(公告)日：2006-07-25

申请号：US10296836

申请日：2002-03-08

申请人： Tomomi Ohara ,  Masahiko Hirose ,  Naoki Kurata

发明人： Tomomi Ohara ,  Masahiko Hirose ,  Naoki Kurata

IPC分类号： B01D63/00 ,  B01D71/56 ,  B01D61/00

CPC分类号： B01D67/0093 ,  B01D65/022 ,  B01D69/125 ,  B01D71/56 ,  B01D2321/168 ,  C02F1/441

摘要： A composite semipermeable membrance of the present invention comprises a thin film and a porous support membrane supporting the thin film, wherein the thin film includes polyamide based resin having a constituent unit with amide bond between diamine residue and di or tri carboxylic acid residue, in which nitrogen atom of the amide bond has a substituent of aromatic ring. A production method of this invention includes a contacting step of contacting the above composite semipermeable membrane with solution including an oxidizer. In addition, a water treatment method of this invention comprises a step of separating a raw water by a composite semipermeable membrane to obtain permeation water in which salt and/or organic substance is removed sufficiently in practical use, characterized in that the composite semipermeable membrane of this invention is used and a fungicide is added into the raw water.This invention provides a composite semipermeable membrane having practically permeability, and excellent desalting faculty and oxidizer resistance, a production method thereof, and water treatment method using the same.

摘要翻译： 本发明的复合半透膜包括薄膜和支撑薄膜的多孔支撑膜，其中薄膜包括具有二胺残基和二或三羧酸残基之间具有酰胺键的构成单元的聚酰胺基树脂，其中 酰胺键的氮原子具有芳环的取代基。 本发明的制备方法包括使上述复合半透膜与包含氧化剂的溶液接触的接触步骤。 此外，本发明的水处理方法包括通过复合半透膜分离原水以获得其中盐和/或有机物质在实际应用中被充分除去的渗透水的步骤，其特征在于，所述复合半透膜 使用本发明，并将杀真菌剂加入原水中。 本发明提供一种具有实用渗透性，优异的脱盐剂和耐氧化剂性的复合半透膜及其制造方法以及使用其的水处理方法。

公开(公告)号：US06723422B1

公开(公告)日：2004-04-20

申请号：US09462109

申请日：1999-12-30

申请人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

发明人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

IPC分类号： B32B2000

CPC分类号： B01D69/02 ,  B01D69/125 ,  B01D71/56 ,  B32B27/34 ,  Y10T428/249987 ,  Y10T428/249991 ,  Y10T428/249992

摘要： A composite reverse osmosis membrane is described, which includes a polyamide skin layer on a porous support, with a contact angle between the polyamide skin layer surface and water of 45° or less. The composite reverse osmosis membrane has a high salt rejection and also a high water permeability. This composite reverse osmosis membrane is produced by forming a polyamide skin layer on a porous support having the steps of: forming a layer on the porous support by coating a solution A including one or more compounds having at least two reactive amino groups; contacting the layer with a solution B comprising one or more polyfunctional acid halide compounds; and subsequently, contacting the layer with a solution C comprising the polyfunctional acid halide compound of a higher concentration than the solution C. The concentration of the polyfunctional acid halide compound in the solution C is preferably at least 1.2 times of the solution B.

摘要翻译： 描述了一种复合反渗透膜，其包括多孔载体上的聚酰胺表层，聚酰胺表层与水之间的接触角为45°以下。 复合反渗透膜具有高的耐盐性和高透水性。 该复合反渗透膜是通过在多孔载体上形成聚酰胺表皮层而制成的，其具有以下步骤：通过涂覆包含一种或多种具有至少两个反应性氨基的化合物的溶液A在多孔载体上形成层; 使该层与包含一种或多种多官能酰卤化合物的溶液B接触; 并且随后使该层与包含比溶液C更高浓度的多官能酰卤化合物的溶液C接触。溶液C中多官能酰卤化合物的浓度优选为溶液B的至少1.2倍。

公开(公告)号：US5733602A

公开(公告)日：1998-03-31

申请号：US577158

申请日：1995-12-22

申请人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

发明人： Masahiko Hirose ,  Hiroki Ito ,  Tomomi Ohara

IPC分类号： B01D71/56 ,  B01D69/12 ,  B01D71/82 ,  B05D3/10 ,  B05D5/00 ,  C23C16/00

CPC分类号： B01D69/125

摘要： Disclosed is a method for producing a composite reverse osmosis membrane comprising the steps of coating a porous support with (A) a solution containing a compound having at least two reactive amino groups per molecule and bringing (B) a solution containing a polyfunctional acid halide into contact with the solution (A) to induce crosslinking to form a crosslinked polyamide skin layer, in which the crosslinking is carried out in the presence of a substance having a solubility parameter of 8 to 14 (cal/cm.sup.3).sup.1/2. The resulting composite reverse osmosis membrane exhibits high salt rejection and high water permeability.

摘要翻译： 公开了一种复合反渗透膜的制造方法，其特征在于，包括以下步骤：（A）含有每分子具有至少2个反应性氨基的化合物的溶液，使（B）含有多官能酰卤的溶液 与溶液（A）接触以诱导交联以形成交联的聚酰胺表层，其中交联在溶解度参数为8-14（cal / cm 3）+ E的物质的存在下进行， 2 + EE。 所得到的复合反渗透膜具有高的耐盐析和高透水性。

公开(公告)号：US20100044902A1

公开(公告)日：2010-02-25

申请号：US12606518

申请日：2009-10-27

申请人： Tomomi Ohara ,  Atsuhito Koumoto

发明人： Tomomi Ohara ,  Atsuhito Koumoto

IPC分类号： B01D67/00

CPC分类号： B01D69/125 ,  B01D61/025 ,  B01D67/0006 ,  B01D67/0093 ,  B01D69/148 ,  B01D71/56 ,  B01D2323/46 ,  B01D2325/28 ,  B01D2325/48

摘要： The present invention aims at providing a composite semipermeable membrane in which water permeability and salt-blocking rate cannot deteriorate by long-term storage, and at providing a process for producing the same. The present invention relates to a composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer including a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the porous support contains at least one kind of additives selected from the group consisting of antioxidants, antibacterial agents, antifungal agents, and moisturizers, in an amount of 95% by weight or more with respect to the whole composite semipermeable membrane.

摘要翻译： 本发明的目的在于提供一种复合半透膜，其中透水性和盐分率不能长期保存而劣化，并且在提供其制造方法。 本发明涉及一种复合半透膜，其具有在多孔载体的表面上形成的表皮层，所述表皮层包括通过多官能胺组分和多官能酰卤组分的界面聚合获得的聚酰胺树脂，其中所述多孔载体包含 相对于整个复合半透膜，至少一种选自抗氧化剂，抗菌剂，抗真菌剂和保湿剂的添加剂的量为95重量％以上。

公开(公告)号：US20080277334A1

公开(公告)日：2008-11-13

申请号：US11664254

申请日：2005-09-05

申请人： Tomomi Ohara ,  Chiaki Harada ,  Tetsuo Inoue ,  Naoki Kurata ,  Takahisa Konishi ,  Takashi Kamada

发明人： Tomomi Ohara ,  Chiaki Harada ,  Tetsuo Inoue ,  Naoki Kurata ,  Takahisa Konishi ,  Takashi Kamada

IPC分类号： B01D71/56 ,  B05D5/00

CPC分类号： B01D71/56 ,  B01D67/0006 ,  B01D69/02 ,  B01D69/125 ,  B01D2323/06

摘要： The present invention aims at providing a composite semipermeable membrane excellent in water permeability and salt-blocking rate, a smaller content of unreacted polyfunctional amine components in the membrane, the composite semipermeable membrane avoiding the necessity of a membrane washing treatment, and the present invention also aims at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer, formed on a surface of a porous support, including a polyamide resin obtained by an interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the content of the unreacted polyfunctional amine component is 200 mg/m2 or less without removing by washing of an unreacted polyfunctional amine component after formation of the skin layer.

摘要翻译： 本发明的目的在于提供一种透水性和防盐率优异的复合半透膜，膜中未反应的多官能胺成分含量较少，复合半透膜避免了膜洗涤处理的需要，本发明也 旨在提供一种生产复合半透膜的方法。 一种复合半透膜，其具有形成在多孔载体的表面上的表层，该膜包括通过多官能胺组分和多官能酰卤组分的界面聚合而获得的聚酰胺树脂，其中未反应的多官能胺组分的含量为200 mg / m 2以下，而不需要在形成表皮层后洗涤未反应的多官能胺组分来除去。

公开(公告)号：US20080083670A1

公开(公告)日：2008-04-10

申请号：US11869678

申请日：2007-10-09

申请人： Tomomi Ohara ,  Atsuhito Koumoto

发明人： Tomomi Ohara ,  Atsuhito Koumoto

IPC分类号： B01D29/46 ,  B05D3/10

CPC分类号： B01D69/125 ,  B01D61/025 ,  B01D67/0006 ,  B01D67/0093 ,  B01D69/148 ,  B01D71/56 ,  B01D2323/46 ,  B01D2325/28 ,  B01D2325/48

摘要： The present invention aims at providing a composite semipermeable membrane in which water permeability and salt-blocking rate cannot deteriorate by long-term storage, and at providing a process for producing the same. The present invention relates to a composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer including a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the porous support contains at least one kind of additives selected from the group consisting of antioxidants, antibacterial agents, antifungal agents, and moisturizers, in an amount of 95% by weight or more with respect to the whole composite semipermeable membrane.

摘要翻译： 本发明的目的在于提供一种复合半透膜，其中透水性和盐分率不能长期保存而劣化，并且在提供其制造方法。 本发明涉及一种复合半透膜，其具有在多孔载体的表面上形成的表皮层，所述表皮层包括通过多官能胺组分和多官能酰卤组分的界面聚合获得的聚酰胺树脂，其中所述多孔载体包含 相对于整个复合半透膜，至少一种选自抗氧化剂，抗菌剂，抗真菌剂和保湿剂的添加剂的量为95重量％以上。

公开(公告)号：US5750633A

公开(公告)日：1998-05-12

申请号：US547439

申请日：1995-10-24

申请人： Tomomi Ohara ,  Hisao Hachisuka

发明人： Tomomi Ohara ,  Hisao Hachisuka

IPC分类号： B01D67/00 ,  B01D71/64 ,  C08G73/10

CPC分类号： C08G73/1039 ,  B01D67/0011 ,  B01D69/02 ,  B01D71/64 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/022

摘要： A dope for cast formation comprising a fluorine including polyimide resin and an organic solvent (P) as main components. The fluorine including polyimide resin has at least one --CF.sub.3 group in the repeating molecular unit. The organic solvent (P) is present during the resin polymerization of the fluorine including polyimide resin. The organic solvent (P) is diethylene glycol dimethyl ether.

摘要翻译： 包括含氟聚酰亚胺树脂和有机溶剂（P）为主要成分的铸造用涂料。 含氟聚酰亚胺树脂在重复分子单元中具有至少一个-CF 3基团。 在含氟聚酰亚胺树脂的树脂聚合期间存在有机溶剂（P）。 有机溶剂（P）是二甘醇二甲醚。

公开(公告)号：US08518310B2

公开(公告)日：2013-08-27

申请号：US11869568

申请日：2007-10-09

申请人： Atsuhito Koumoto ,  Takashi Kamada ,  Tomomi Ohara

发明人： Atsuhito Koumoto ,  Takashi Kamada ,  Tomomi Ohara

IPC分类号： B32B37/14 ,  B01D39/00

CPC分类号： B01D67/0095 ,  B01D69/125 ,  B01D71/56 ,  B01D2323/02

摘要： The present invention aims at providing a process for producing a dried composite semipermeable membrane having extremely small content of unreacted components, outstanding water permeability and salt-blocking rate even after drying treatment, and outstanding contamination resistance and durability. The present invention relates to a process for producing a dried composite semipermeable membrane comprising the steps of: preparing a composite semipermeable membrane having a skin layer including a polyamide resin obtained by reaction between a polyfunctional amine component and a polyfunctional acid halide component formed on the surface of a porous support; washing the composite semipermeable membrane; contacting a moisturing solution including a moisturizer and a hydrophilization agent only to the surface of the porous support of the washed composite semipermeable membrane and contacting a protecting solution only to the surface of the skin layer of the washed composite semipermeable membrane; and drying the treated composite semipermeable membrane.

摘要翻译： 本发明的目的在于提供一种干燥后的复合半透膜的制造方法，其具有极少量的未反应成分，即使在干燥处理后也具有优异的透水性和防盐性，以及优异的耐污染性和耐久性。 本发明涉及一种干燥复合半透膜的制造方法，其特征在于，包括以下工序：制备具有表层的复合半透膜，所述表皮层包含通过多官能胺成分与表面形成的多官能酰卤成分反应而得到的聚酰胺树脂 的多孔支撑; 洗涤复合半透膜; 将包含保湿剂和亲水剂的润湿溶液仅接触到洗涤的复合半透膜的多孔载体的表面，并使保护溶液仅与洗涤的复合半透膜的表皮层接触; 并干燥经处理的复合半透膜。