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公开(公告)号：US20160339396A1
公开(公告)日：2016-11-24
申请号：US15114975
申请日：2015-01-06
发明人： Shinichi Inoue , Shinya Nishiyama , Junko Nakano
CPC分类号： B01D71/56 , B01D67/0006 , B01D67/0095 , B01D69/125 , B01D2323/08 , B01D2323/30 , B01D2323/40 , C08G69/28 , C08G69/32
摘要： The purpose of the present invention is to provide: a composite semipermeable membrane that has excellent oxidation resistance compared to the prior art; and a method for producing the composite semipermeable membrane. The method for producing a composite semipermeable membrane is characterized by: comprising a step in which an amine solution containing a polyfunctional amine component and an organic solution containing a polyfunctional acid halide component are brought into contact on a porous support to form a skin layer containing a polyamide resin on the surface of the porous support, wherein the polyfunctional amine component contains N,N′ -dimethyl-meta-phenylenediamine and the solvent of the organic solution is an organic solvent having a boiling point of 130 to 250° C.
摘要翻译： 本发明的目的是提供：与现有技术相比具有优异的抗氧化性的复合半透膜; 和复合半透膜的制造方法。 复合半透膜的制造方法的特征在于，包括以下步骤：将含有多官能胺组分的胺溶液和含有多官能酰卤组分的有机溶液接触在多孔载体上以形成含有 聚酰胺树脂在多孔载体的表面上，其中多官能胺组分含有N，N'-二甲基间苯二胺，有机溶剂的溶剂是沸点为130-250℃的有机溶剂。
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公开(公告)号：US20170007969A1
公开(公告)日：2017-01-12
申请号：US15114182
申请日：2015-01-14
发明人： Shinya Nishiyama , Junko Nakano , Shinichi Inoue
CPC分类号： B01D63/10 , B01D67/0006 , B01D69/02 , B01D69/125 , B01D71/56 , B01D2313/146 , B01D2323/08 , B01D2325/02 , B01D2325/30 , B32B5/026 , B32B27/34 , B32B2307/714 , C08G69/28 , C08G69/32 , C09D177/10
摘要： The objective of the present invention is to provide a spiral-type separation membrane element having superior oxidant resistance relative to the prior art, and a salt-blocking rate that tends not to decrease. The spiral-type separation membrane element is characterized in including: a supply-side flow-path material; a composite semipermeable membrane in which a skin layer is formed on the surface of a porous support, the skin layer containing a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halogen component; and a permeation-side flow-path material, wherein the polyfunctional amine component contains N,N′-dimethyl-meta-phenylenediamine and the permeation-side flow-path material has a porosity of 40 to 75%.
摘要翻译： 本发明的目的是提供一种相对于现有技术具有优异的耐氧化性的螺旋型分离膜元件和趋于不降低的盐分率。 螺旋型分离膜元件的特征在于包括：供给侧流路材料; 复合半透膜，其中在多孔载体的表面上形成表层，所述表皮层含有通过多官能胺组分和多官能酸性卤素组分的界面聚合得到的聚酰胺树脂; 和渗透侧流路材料，其中所述多官能胺组分含有N，N'-二甲基间苯二胺，并且所述渗透侧流路材料具有40至75％的孔隙率。
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公开(公告)号：US11911725B2
公开(公告)日：2024-02-27
申请号：US17598437
申请日：2020-03-12
CPC分类号： B01D53/228 , B01D69/1218 , B01D69/148 , B01D69/14111 , B01D71/021 , B01D71/027 , B01D71/5211 , B01D71/5222 , B01D71/701 , B01D2257/504 , B82Y30/00
摘要： The present invention provides a separation membrane that is suitable for separating an acid gas from a gas mixture containing the acid gas and has a high acid gas permeability. A separation membrane (10) of the present invention includes: a separation functional layer (1); a porous support member (3) supporting the separation functional layer (1); and an intermediate layer (2) disposed between the separation functional layer (1) and the porous support member (3), and including a matrix (4) and nanoparticles (5) dispersed in the matrix (4).
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公开(公告)号：US10357747B2
公开(公告)日：2019-07-23
申请号：US15763331
申请日：2016-09-30
发明人： Shinya Nishiyama , Taisuke Yamaguchi , Takahisa Konishi , Hiroki Fujioka , Takashi Kamada , Shinichi Inoue
IPC分类号： C02F1/44 , B01D61/02 , B01D63/10 , B01D67/00 , B01D69/12 , B01D71/38 , B01D71/56 , B01D71/68 , C02F103/04 , C02F103/08 , C02F103/10 , C02F103/32
摘要： A method for producing a spiral wound separation membrane element includes preparing a composite semipermeable membrane having a skin layer on the surface of a porous support. The method further includes forming on the skin layer a protective layer containing 35 mg/m2 or more of an anionic polyvinyl alcohol to prepare a protective layer-equipped composite semipermeable membrane, preparing an unwashed spiral wound separation membrane element from the protective layer-equipped composite semipermeable membrane, and passing wash water through the unwashed spiral wound separation membrane element to remove the protective layer on the skin layer.
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