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1.发明授权
公开(公告)号：US5055116A
公开(公告)日：1991-10-08
申请号：US505099
申请日：1990-04-03
CPC分类号： C08G73/1039 , B01D71/64 , C08L79/08
摘要： The present invention provides for gas separation membranes which are engineered to have specific gas transport properties based on the blending of certain polymers. In preferred embodiments, the blended polymers are polyimides which have different molecular structures and different gas transport properties. Despite these differences, however, the polymers are completely miscible and can be effectively utilized to prepare gas separation membranes having specifically tailored properties.
摘要翻译： 本发明提供了气体分离膜，其被工程化以具有基于某些聚合物的共混的特定的气体输送性质。 在优选实施方案中，共混聚合物是具有不同分子结构和不同气体输送性质的聚酰亚胺。 然而，尽管存在这些差异，聚合物是完全可混溶的，并且可以有效地用于制备具有特别定制性质的气体分离膜。
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公开(公告)号：US5320754A
公开(公告)日：1994-06-14
申请号：US993931
申请日：1992-12-18
摘要： A novel method for making a composite separation membrane, and the product of that method. This novel method includes applying one or more perfluoroethers to the surface of a microporous fiber or film made of a polymer such as PAN, and subsequently coating that fiber or film surface with a layer of selective material. This method provides a more permeable composite membrane than would be obtained by coating a fiber or film that had not been pre-wetted with perfluoroether.
摘要翻译： 一种制备复合分离膜的新方法，该方法的产物。 这种新方法包括将一个或多个全氟醚施加到由聚合物如PAN制成的微孔纤维或膜的表面上，随后用选择性材料层涂覆该纤维或膜表面。 该方法提供比通过涂布未被全氟醚预润湿的纤维或薄膜所获得的更可渗透的复合膜。
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公开(公告)号：US5614309A
公开(公告)日：1997-03-25
申请号：US885801
申请日：1992-05-19
IPC分类号： B05D3/12 , B05D7/04 , C08J3/09 , D06M15/227 , D06M15/263 , D06M23/10 , D02G3/00
CPC分类号： C08J3/092 , B05D3/12 , B05D7/04 , D06M15/227 , D06M15/263 , D06M23/10 , C08J2351/06 , Y10T428/2933 , Y10T428/2935 , Y10T428/2967 , Y10T428/2971 , Y10T428/2975
摘要： A polypropylene or polyethylene film or fiber coated with a maleic-acid grafted polypropylene or polyethylene copolymer layer over which is coated a layer of selective polymer. The copolymer securely bonds the selective polymer to the film or fiber. These fibers and films can be used in fluid separation membranes.
摘要翻译： 涂覆有马来酸接枝的聚丙烯或聚乙烯共聚物层的聚丙烯或聚乙烯膜或纤维，在其上涂覆选择性聚合物层。 共聚物将选择性聚合物牢固地粘合到膜或纤维上。 这些纤维和薄膜可用于流体分离膜。
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4.发明授权Composite membranes comprising a sulfonated polyarylether and their use in forward osmosis processes 有权包含磺化聚芳醚的复合膜及其在正向渗透过程中的用途公开(公告)号：US09193611B2
公开(公告)日：2015-11-24
申请号：US13457682
申请日：2012-04-27
IPC分类号： C08G14/00 , C02F1/44 , B01D67/00 , B01D69/10 , B01D69/12 , B01D71/56 , B01D71/68 , B01D71/80 , B01D71/82 , B01D61/00 , C02F103/08
CPC分类号： C02F1/445 , B01D61/002 , B01D67/0006 , B01D67/0009 , B01D69/10 , B01D69/125 , B01D71/56 , B01D71/68 , B01D71/80 , B01D71/82 , B01D2323/40 , C02F2103/08 , Y02A20/131
摘要： The present invention is directed to thin film composite membrane (TFC membrane) comprising a substrate layer (S) based on a sulfonated polymer, e.g. a sulfonated polyarylether, and a polyamide film layer (F) and further to a method for their preparation. Furthermore, the present invention is directed to osmosis processes, in particular to forward osmosis (FO) processes, using said membrane.
摘要翻译： 本发明涉及薄膜复合膜（TFC膜），其包含基于磺化聚合物的基底层（S） 磺化聚芳醚和聚酰胺膜层（F），进一步为其制备方法。 此外，本发明涉及使用所述膜的渗透方法，特别是前向渗透（FO）方法。
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公开(公告)号：US08623124B2
公开(公告)日：2014-01-07
申请号：US13122843
申请日：2009-10-07
CPC分类号： B01D67/0006 , B01D69/088 , B01D71/62 , B01D2323/30 , C08G73/1039 , C08G73/1042 , C08G73/14 , C08G73/18 , C08L71/00 , C08L79/04 , C08L79/08 , C08L81/06 , C08L2205/02 , C08L2666/20
摘要： A composition includes a first polymer having monomers each containing an imidazole group, and a second polymer, the first and second polymers being a polymer blend. The first polymer, the second polymer, or both may be cross-linked. The carbonized composition, polymeric and carbon membranes (either in the form of a flat sheet or a hollow fiber) made from the composition are also described. The polymeric and carbon membranes can be used to separate and purify gases or liquids.
摘要翻译： 组合物包括具有各自含有咪唑基的单体的第一聚合物和第二聚合物，第一和第二聚合物是聚合物共混物。 第一聚合物，第二聚合物或两者可以是交联的。 还描述了由组合物制成的碳化组合物，聚合物和碳膜（以平片或中空纤维的形式）。 聚合物和碳膜可用于分离和净化气体或液体。
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公开(公告)号：US20130313185A1
公开(公告)日：2013-11-28
申请号：US13984454
申请日：2012-02-13
申请人： Tai-Shung Chung , Kaiyu Wang
发明人： Tai-Shung Chung , Kaiyu Wang
CPC分类号： B01D71/56 , B01D67/0011 , B01D71/12 , B01D71/42 , B01D71/64 , B01D71/68 , C07K14/325 , C12N15/8286 , Y02A40/162
摘要： A forward osmosis membrane (10) and method (50) of forming the forward osmosis membrane (10) are provided. The forward osmosis membrane (10) has an integral hydrophilic asymmetric layer (12). The integral hydrophilic asymmetric layer (12) includes a first sublayer (18) having a plurality of first elongated pores (20) extending along a depth of the first sublayer (18) and a second sublayer (22) having a plurality of second elongated pores (24) extending along a thickness of the second sublayer (22). The first elongated pores (20) are dimensionally smaller than the second elongated pores (24). A polyamide layer (14) is formed over a surface of the integral hydrophilic asymmetric layer (12).
摘要翻译： 提供形成正向渗透膜（10）的正向渗透膜（10）和方法（50）。 正向渗透膜（10）具有整体的亲水不对称层（12）。 积分亲水不对称层（12）包括具有沿着第一子层（18）的深度延伸的多个第一细长孔（20）的第一子层（18）和具有多个第二细长孔 （24）沿第二子层（22）的厚度延伸。 第一细长孔（20）在尺寸上小于第二细长孔（24）。 在整个亲水不对称层（12）的表面上形成聚酰胺层（14）。
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公开(公告)号：US20050069700A1
公开(公告)日：2005-03-31
申请号：US10495266
申请日：2002-11-08
申请人： Tai-Shung Chung , Rong Wang , Ji Ren , Chun Cao , Ye Liu , Dong-Fei Li
发明人： Tai-Shung Chung , Rong Wang , Ji Ren , Chun Cao , Ye Liu , Dong-Fei Li
CPC分类号： D01F6/74 , B01D67/0011 , B01D69/02 , B01D69/08 , B01D71/64 , B01D2323/08 , B01D2323/12 , B01D2325/022 , D01D5/24 , Y10S55/05 , Y10T428/2913
摘要： A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt % N-methylpyrollidone and 0-40 wt % ethanol, (ii) providing a bore fluid, (iii)generating a tube of the dope solution filled with the bore fluid, (iv) bringing the product of step (iii) into contact with a coagulation solvent to form a hollow fibre.
摘要翻译： 一种制造聚酰亚胺中空纤维的方法，包括：（i）提供包含溶解在包含60-100重量％N-甲基吡咯烷酮和0-40重量％乙醇的溶剂中的一种或多种聚酰亚胺的涂料溶液，（ii）提供 （iii）产生填充有孔流体的涂料溶液管，（iv）使步骤（iii）的产物与凝固溶剂接触以形成中空纤维。
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公开(公告)号：US6015516A
公开(公告)日：2000-01-18
申请号：US100094
申请日：1998-06-19
申请人： Tai-Shung Chung , Xudong Hu , Soo Khean Teoh
发明人： Tai-Shung Chung , Xudong Hu , Soo Khean Teoh
摘要： A process for forming ultrathin dense-layer asymmetric hollow fiber membranes with a dense layer of less than 500 .ANG. from a binary solution system comprising a polymer and a solvent. In this process, the spinning polymeric solution has a high viscosity and exhibits chain entanglement at the spinning temperature. The solubility parameter difference between the bore fluid and the spinning dope is less than 2.5 (cal/cm.sup.3).sup.0.5 and the volume ratio of bore-fluid flow rate to the dope flow rate is between 0.45 to 0.75. The dope is wet-spun into hollow fibers using water as external coagulant. The ultrathin dense-layer asymmetric hollow fiber membranes are suitable for air and other gas separations.
摘要翻译： 一种从包含聚合物和溶剂的二元溶液体系形成具有小于500安培的致密层的超薄致密层不对称中空纤维膜的方法。 在该方法中，纺丝聚合物溶液具有高粘度并且在纺丝温度下表现出链缠结。 孔流体和纺丝原液之间的溶解度参数差异小于2.5（cal / cm3）0.5，孔流体流速与涂料流速的体积比在0.45至0.75之间。 将涂料用水作为外部凝结剂湿法纺丝成中空纤维。 超薄致密层不对称中空纤维膜适用于空气和其他气体分离。
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9.发明授权Process for formation of halogenated polymeric microporous membranes having improved strength properties 失效用于形成具有改进的强度性能的卤化聚合物微孔膜的方法
公开(公告)号：US5043113A
公开(公告)日：1991-08-27
申请号：US558992
申请日：1990-07-27
CPC分类号： C08J9/26 , C08J9/24 , H01M2/1653
摘要： A process for producing a polyhalogenated microporous film having a very narrow pore size distribution and good temperature and chemical resistance. The process involves blending a polyhalogenated copolymer with a polyethyloxazoline utilizing a solvent which is a nonsolvent for the polyhalogenated copolymer but a solvent for polyethyloxazoline, forming a film from the blend, drying the film, heating the film to a temperature at or above the melting point of the polyhalogenated copolymer and under conditions such that the microparticulate particles at their points of mutual contact will neck together to form a relatively continuous matrix and extracting the polyethyloxazoline from the film utilizing a solvent for the binder particle to form a microporous film.
摘要翻译： 一种制造具有非常窄的孔径分布和良好的温度和耐化学性的多卤代微孔膜的方法。 该方法包括将多卤代共聚物与聚乙基恶唑啉混合，使用对于多卤代共聚物是非溶剂的溶剂，但是用于聚乙基恶唑啉的溶剂，从共混物形成膜，干燥膜，将膜加热到等于或高于熔点的温度 的多卤化共聚物，并且在相互接触点处的微粒颗粒将颈部在一起以形成相对连续的基质并且使用用于粘合剂颗粒的溶剂从膜中提取聚乙基恶唑啉以形成微孔膜。
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公开(公告)号：US4842740A
公开(公告)日：1989-06-27
申请号：US228624
申请日：1988-08-05
摘要： This invention discloses novel membranes comprised of a blend of polyarylate and polybenzimidazole polymers. A membrane prepared from the blend of polybenzimidazole and polyarylate polymers exhibits enhanced properties over membranes prepared solely from either a polyarylate or a polybenzimidazole polymer. The addition of the polyarylate to the polybenzimidazole membrane allows the composition to be more thermally processable and less susceptible to moisture. The presence of the polybenzimidazole renders the polyarylate less reactive to solvents and increases its thermal stability. In addition, it has been surprisingly found that membranes prepared from the polybenzimidazole polyarylate blends show high regeneration capacity while retaining good flux ranges. The membranes prepared by this process exhibit good separation characteristics and provide an improved membrane with enhanced qualities over prior art membranes.
摘要翻译： 本发明公开了由多芳基化合物和聚苯并咪唑聚合物的共混物组成的新型膜。 由聚苯并咪唑和聚芳酯聚合物的共混物制备的膜在仅由多芳基化合物或聚苯并咪唑聚合物制备的膜上表现出增强的性能。 将多芳基化合物加入到聚苯并咪唑膜中可使组合物具有更好的热可加工性，并且不易受潮气影响。 聚苯并咪唑的存在使多芳基化合物对溶剂的反应性降低，并增加其热稳定性。 此外，已经令人惊奇地发现，由聚苯并咪唑多芳基化合物共混物制备的膜显示出高再生能力，同时保持良好的通量范围。 通过该方法制备的膜显示出良好的分离特性，并提供与现有技术膜相比具有增强质量的改进的膜。
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