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公开(公告)号：US20080251447A1
公开(公告)日：2008-10-16
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
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 amount of 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; preparing a washed composite semipermeable membrane by washing the composite semipermeable membrane; preparing a treated composite semipermeable membrane by contact of 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 by contact of 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即使在干燥处理后也具有非常少的未反应组分含量，优异的透水性和防盐率的干燥的复合半透膜的制造方法，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; 通过洗涤复合半透膜制备洗涤的复合半透膜; 通过与包含保湿剂和亲水化剂的润湿溶液接触仅经过洗涤的复合半透膜的多孔载体的表面并通过仅将保护溶液与保护溶液的表皮层接触而制备经处理的复合半透膜 洗涤复合半透膜; 并干燥经处理的复合半透膜。
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公开(公告)号：US20080053893A1
公开(公告)日：2008-03-06
申请号：US11664428
申请日：2005-09-09
申请人： Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takahisa Konishi , Takashi Kamada , Hironobu Machinaga
发明人： Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takahisa Konishi , Takashi Kamada , Hironobu Machinaga
CPC分类号： B01D69/125 , B01D67/0006 , B01D67/0081 , B01D67/0088 , B01D69/02 , B01D71/56 , B01D2323/06
摘要： The present invention aims at providing a composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted polyfunctional amine components in the membrane, and at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer comprising a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the content of an unreacted polyfunctional amine component is 200 mg/m2 or less after formation of the skin layer and before a membrane washing treatment, and the content of the unreacted polyfunctional amine component after the membrane washing treatment is 20 mg/m2 or less.
摘要翻译： 本发明的目的在于提供一种透水性和耐盐分性优异的复合半透膜，在膜中含有极少量未反应的多官能胺成分，提供复合半透膜的制造方法。 一种复合半透膜，其具有形成在多孔载体的表面上的表皮层，所述表皮层包含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，其中未反应的多官能胺组分的含量为 形成皮肤层之后和膜洗涤处理之前200mg / m 2以下，膜洗涤处理后的未反应的多官能胺成分的含量为20mg / m 2 或更少。
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公开(公告)号：US06432310B1
公开(公告)日：2002-08-13
申请号：US09488633
申请日：2000-01-20
申请人： Masaaki Andou , Hajimu Hisada , Tomomi Ohara , Ichirou Kawada
发明人： Masaaki Andou , Hajimu Hisada , Tomomi Ohara , Ichirou Kawada
IPC分类号： B01D6100
CPC分类号： B01D65/08 , B01D61/022 , B01D61/025 , B01D61/04 , B01D61/12 , B01D61/145 , B01D61/147 , B01D61/16 , B01D63/10 , B01D63/12 , B01D63/16 , B01D65/00 , B01D65/02 , B01D2311/04 , B01D2321/04 , B01D2321/16 , B01D2321/185 , B01D2311/12
摘要： A spiral wound membrane element is formed by covering a spiral membrane component prepared by winding a plurality of independent or continuous envelope-like membranes around the outer peripheral surface of a water collection pipe through raw water spacers with a separation membrane and further covering the same with an outer peripheral passage forming material. In washing, permeate containing a chemical is introduced from an opening end of the water collection pipe while the permeate derived from the outer peripheral surface of the water collection pipe is discharged from at least the outer peripheral side of the spiral wound type membrane element and raw water is axially fed along the outer peripheral portion of the spiral wound type membrane element. In filtration running, the raw water in which bubbles are diffused by an air diffuser may be supplied to the spiral wound membrane element stored in a pressure vessel. Alternatively, filtration running may be temporarily stopped for holding the spiral wound type membrane element for a prescribed time in a state sealing the raw water and the permeate in the pressure vessel.
摘要翻译： 通过覆盖螺旋膜部件形成螺旋形膜元件，该螺旋膜部件通过使用分离膜通过原水间隔件将多个独立或连续的包膜状膜缠绕在集水管的外周表面上，并且进一步用 外周通路形成材料。 在洗涤中，含水化学品的渗透物从集水管的开口端引入，而从收集管的外周面排出的渗透物至少从螺旋卷绕型膜元件的外周侧排出， 水沿螺旋缠绕型膜元件的外周部轴向供给。 在过滤运行中，可以将气泡通过空气扩散器扩散的原水供应到存储在压力容器中的螺旋缠绕膜元件。 或者，在将原水和渗透物密封在压力容器中的状态下，可能暂时停止过滤运行以将螺旋缠绕型膜元件保持规定时间。
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公开(公告)号：US5647894A
公开(公告)日：1997-07-15
申请号：US478519
申请日：1995-06-07
申请人： Tomomi Ohara , Hisao Hachisuka , Ping Xu , Akira Shimazu , Kenichi Ikeda
发明人： Tomomi Ohara , Hisao Hachisuka , Ping Xu , Akira Shimazu , Kenichi Ikeda
CPC分类号： B01D71/64 , B01D53/228 , B01D69/12 , Y10S55/05
摘要： A gas separating composite membrane comprising two types of polyimide resin layers having different molecular structures and each having solubility in an organic solvent different from each other, the two layers being laminated being substantially independent or via a mixed layer, the first polyimide resin layer comprising a porous polyimide supporting membrane having a nitrogen gas permeation flux density at 25.degree. C. of at least 2 Nm.sup.3 /m.sup.2 /h/atm., and the second polyimide resin layer, which contributes to a gas separating performance comprising a fluorine-containing polyimide thin film containing at least three fluorine atoms in a repeating molecular structure unit which constructs the second polyimide resin layer has a very high gas permeation flux density while maintaining a high gas permeability, excels in heat resistance and chemical resistance, and satisfies a practical use in terms of cost.
摘要翻译： 一种气体分离复合膜，包括具有不同分子结构且各自具有彼此不同的有机溶剂中的溶解性的两种类型的聚酰亚胺树脂层，所述两层基本上独立地层叠或经由混合层，所述第一聚酰亚胺树脂层包含 在25℃下的氮气渗透通量密度为至少2Nm 3 / m 2 / h / atm的多孔聚酰亚胺支撑膜和第二聚酰亚胺树脂层，其有助于包含含氟聚酰亚胺薄片的气体分离性能 在构成第二聚酰亚胺树脂层的重复分子结构单元中含有至少三个氟原子的膜具有非常高的气体渗透通量密度，同时保持高的透气性，优异的耐热性和耐化学性，并且满足实际应用 的成本。
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公开(公告)号：US08851297B2
公开(公告)日：2014-10-07
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： B01D71/56 , B01D69/02 , B01D69/12 , B01D61/02 , B01D67/00 , B01D69/14 , B01D61/00 , C02F1/44
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。
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公开(公告)号：US20100176052A1
公开(公告)日：2010-07-15
申请号：US12593844
申请日：2008-03-27
申请人： Atsuhito Koumoto , Takashi Kamada , Tomomi Ohara
发明人： Atsuhito Koumoto , Takashi Kamada , Tomomi Ohara
CPC分类号： B01D71/56 , B01D67/0006 , B01D67/0081 , B01D67/0088 , B01D67/0095 , B01D69/125 , B01D2323/40
摘要： The present invention aims at providing a process for producing composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted components in the membrane, and at providing a composite semipermeable membrane obtained by the production process. The present invention relates to a process for producing a composite semipermeable membrane, comprising the steps of: producing an unwashed composite semipermeable membrane by forming a skin layer including a polyamide resin obtained by reaction between a polyfunctional amine component and a polyfunctional acid halide component on the surface of a porous support; and pretreating the unwashed composite semipermeable membrane by contact to a solution containing a water-soluble alcohol, and subsequently performing a membrane washing treatment by contact to pure water or ion exchange water.
摘要翻译： 本发明的目的在于提供一种具有优异的透水性和防盐性的复合半透膜的方法，并且在膜中包含极少量的未反应组分，以及提供通过该制备方法获得的复合半透膜。 复合半透膜的制造方法技术领域本发明涉及复合半透膜的制造方法，其特征在于，包括以下步骤：通过形成包含通过多官能胺成分与多官能酰卤成分反应得到的聚酰胺树脂的表皮层来制造未洗涤的复合半透膜 多孔载体的表面; 并且通过与含有水溶性醇的溶液接触来预处理未洗涤的复合半透膜，然后通过与纯水或离子交换水接触进行膜洗涤处理。
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公开(公告)号：US20100173083A1
公开(公告)日：2010-07-08
申请号：US12728347
申请日：2010-03-22
申请人： Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takahisa Konishi , Takashi Kamada , Hironobu Machinaga
发明人： Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takahisa Konishi , Takashi Kamada , Hironobu Machinaga
IPC分类号： B05D3/00
CPC分类号： B01D69/125 , B01D67/0006 , B01D67/0081 , B01D67/0088 , B01D69/02 , B01D71/56 , B01D2323/06
摘要： The present invention aims at providing a composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted polyfunctional amine components in the membrane, and at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer comprising a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the content of an unreacted polyfunctional amine component is 200 mg/m2 or less after formation of the skin layer and before a membrane washing treatment, and the content of the unreacted polyfunctional amine component after the membrane washing treatment is 20 mg/m2 or less.
摘要翻译： 本发明的目的在于提供一种透水性和耐盐分性优异的复合半透膜，在膜中含有极少量未反应的多官能胺成分，提供复合半透膜的制造方法。 一种复合半透膜，其具有形成在多孔载体的表面上的表皮层，所述表皮层包含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，其中未反应的多官能胺组分的含量为 在形成皮肤层之后和膜洗涤处理之前为200mg / m 2以下，膜洗涤处理后的未反应的多官能胺成分的含量为20mg / m 2以下。
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公开(公告)号：US20080257818A1
公开(公告)日：2008-10-23
申请号：US11664371
申请日：2005-09-09
申请人： Takahisa Konishi , Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takashi Kamada , Hironobu Machinaga
发明人： Takahisa Konishi , Tomomi Ohara , Chiaki Harada , Tetsuo Inoue , Naoki Kurata , Takashi Kamada , Hironobu Machinaga
CPC分类号： B01D71/56 , B01D69/02 , B01D69/125
摘要： The present invention aims at providing a composite semipermeable membrane having outstanding water permeability and salt-blocking rate, and extremely small amount of unreacted polyfunctional amine components in the porous support, and at providing a process for producing the composite semipermeable membrane. A composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer comprising a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the porous support has a microporous layer on a base material, and the content of an unreacted polyfunctional amine component in the base material after a membrane washing treatment is 0.5 mg/m2 or less.
摘要翻译： 本发明的目的在于提供一种具有优异的透水性和防盐率的复合半透膜，以及在多孔载体中极少量未反应的多官能胺组分，以及提供一种制备该复合半透膜的方法。 一种复合半透膜，其具有形成在多孔载体的表面上的表皮层，所述表层包含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，其中所述多孔载体在其上具有微孔层 基材，膜洗涤处理后的基材中未反应的多官能胺成分的含量为0.5mg / m 2以下。
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公开(公告)号：US06533937B1
公开(公告)日：2003-03-18
申请号：US09488623
申请日：2000-01-20
申请人： Tetsurou Adachi , Masaaki Andou , Hajimu Hisada , Tomomi Ohara , Toshiyuki Kawashima , Ichirou Kawada
发明人： Tetsurou Adachi , Masaaki Andou , Hajimu Hisada , Tomomi Ohara , Toshiyuki Kawashima , Ichirou Kawada
IPC分类号： B01D6100
CPC分类号： B01D65/08 , B01D61/02 , B01D61/022 , B01D61/025 , B01D61/04 , B01D61/12 , B01D61/145 , B01D61/147 , B01D61/16 , B01D61/22 , B01D63/10 , B01D63/12 , B01D63/16 , B01D65/00 , B01D65/02 , B01D2311/04 , B01D2321/02 , B01D2321/04 , C02F1/441 , C02F1/444 , B01D2311/12
摘要： A spiral wound type membrane element is formed by covering a spiral membrane component prepared by winding a plurality of independent or continuous envelope-like membranes around the outer peripheral surface of a water collection pipe through raw water spacers with a separation membrane and further covering the same with an outer peripheral passage forming material. In filtration, raw water introduced from a raw water inlet of a spiral wound type membrane module permeates through the separation membrane from at least the outer peripheral side of the spiral wound type membrane element and infiltrates into the clearances between the envelope-like membranes along the raw water spacers. Part of the supplied raw water axially flows along the outer peripheral portion of the spiral wound type membrane element and is thereafter discharged from a raw water outlet of the spiral wound type membrane module, to be returned to a raw liquid tank again. Back wash reverse filtration is performed in washing of the spiral wound type membrane element. The permeate flow rate in filtration, the filtration time, the wash water flow rate in washing and the washing time are set to prescribed values so that the permeate volume in filtration to the permeate volume in back wash reverse filtration is not more than 600.
摘要翻译： 通过覆盖螺旋膜成分来形成螺旋形膜元件，该螺旋膜部件通过使用分离膜的原水间隔件围绕集水管的外周表面缠绕多个独立或连续的包膜状膜，并进一步覆盖螺旋膜部件 具有外周通道形成材料。 在过滤中，从螺旋缠绕型膜组件的原水入口引入的原水至少从螺旋缠绕型膜元件的外周侧渗透通过分离膜，并且沿着沿着螺旋卷绕型膜元件的外壳侧的间隙渗入 原水间隔 供给的原水的一部分沿着螺旋卷绕型膜元件的外周部分轴向流动，然后从螺旋缠绕型膜组件的原水出口排出，再次返回到原液罐。 在洗涤螺旋缠绕型膜元件时进行背面洗涤反向过滤。 过滤中的渗透流量，过滤时间，洗涤时的洗涤水流量和洗涤时间均设定为规定值，使得在反冲洗反向过滤中过滤至渗透物体积的渗透物体积不超过600。
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20.发明授权Method of manufacturing a polyimide-type gas permeation membrane including fluorine 失效包含氟的聚酰亚胺型气体渗透膜的制造方法
公开(公告)号：US5690870A
公开(公告)日：1997-11-25
申请号：US544202
申请日：1995-10-17
申请人： Hisao Hachisuka , Ping Xu , Tomomi Ohara
发明人： Hisao Hachisuka , Ping Xu , Tomomi Ohara
CPC分类号： B29C47/0004 , B01D67/0011 , B01D67/0013 , B01D71/64 , B01D2323/08 , B01D2323/12 , B01D2323/30 , B01D2325/022 , B01D2325/32 , B29C47/0021
摘要： Polyimide resin dope having at least three fluorine atoms in a repeating molecular unit and an organic solvent (A) are extruded in a tube form or coating the dope on a supporting body. The polyimide resin dope is then immersed in a solvent (B), which the organic solvent (A) is miscible with the solvent (B). Thus, a polyimide-type gas separation membrane including fluorine is virtually defect free in the skin layer, and manufactured cost-effectively by a simple manufacturing method.
摘要翻译： 在重复分子单元中具有至少三个氟原子的聚酰亚胺树脂涂料和有机溶剂（A）以管形式挤出或将涂料涂布在支撑体上。 然后将聚酰亚胺树脂涂料浸入有机溶剂（A）与溶剂（B）混溶的溶剂（B）中。 因此，包含氟的聚酰亚胺型气体分离膜在皮肤层中几乎无缺陷，并且通过简单的制造方法成本有效地制造。
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