公开(公告)号：US20240299887A1

公开(公告)日：2024-09-12

申请号：US18578397

申请日：2022-07-07

申请人： Compact Membrane Systems, Inc.

发明人： Sudipto MAJUMDAR ,  Robert D. LOUSENBERG ,  Kenneth E. LOPRETE ,  Ning SHANGGUAN ,  Irene GONCHAROVSKY ,  Jacob A. WARGO

IPC分类号： B01D69/12 ,  B01D53/22 ,  B01D63/10 ,  B01D69/02 ,  B01D71/34 ,  B01D71/36 ,  B01D71/44 ,  B01D71/70

CPC分类号： B01D69/12 ,  B01D53/228 ,  B01D63/10 ,  B01D69/02 ,  B01D71/34 ,  B01D71/36 ,  B01D71/44 ,  B01D71/70 ,  B01D2256/22 ,  B01D2256/24 ,  B01D2257/102 ,  B01D2257/7022 ,  B01D2323/2181 ,  B01D2325/04 ,  B01D2325/14 ,  B01D2325/20 ,  B01D2325/32

摘要： In an aspect, provided herein is an improved thin-film composite membrane and gas-separation processes using the composite membrane. The composite membrane incorporates a gutter layer from a polymer material selected from a substituted polyacetylene, an addition-polymerized and substituted polynorbornene, or an addition-polymerized and substituted polytricyclononene. The gutter layer provides improved adhesion with a gas-separation layer incorporating a fluorinated ionomer.

公开(公告)号：US20240226813A9

公开(公告)日：2024-07-11

申请号：US18546318

申请日：2022-02-16

申请人： ENERGY EXPLORATION TECHNOLOGIES, INC. ,  BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

发明人： Kevin Kruschka REIMUND ,  Richelle LYNDON ,  Amit PATWARDHAN ,  Teague EGAN ,  Benny Dean FREEMAN

IPC分类号： B01D69/02 ,  B01D61/44 ,  B01D71/16 ,  C08J5/18

CPC分类号： B01D69/02 ,  B01D61/44 ,  B01D71/16 ,  C08J5/18 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/32 ,  C08J2301/12

摘要： Membrane materials and methods are disclosed for selectively separating or transporting ions in liquid media. In embodiments, the membranes comprise cellulose acetate polymer films having high cation, monovalent/divalent, and/or Li+/Mg2+ selectivity. Systems and methods for use of such membranes, including the direct extraction of lithium (DLE) from natural brines and other resources, also are disclosed.

公开(公告)号：US20180345211A1

公开(公告)日：2018-12-06

申请号：US15608403

申请日：2017-05-30

申请人： Saudi Arabian Oil Company

发明人： Junyan Yang

IPC分类号： B01D53/22 ,  B01D71/56 ,  B01D71/52 ,  B01D67/00

CPC分类号： B01D53/228 ,  B01D67/0002 ,  B01D67/0016 ,  B01D67/009 ,  B01D71/52 ,  B01D71/56 ,  B01D71/80 ,  B01D2256/245 ,  B01D2257/504 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2323/345 ,  B01D2325/22 ,  B01D2325/24 ,  B01D2325/32

摘要： A method of separating gas and a method of making a gas separation membrane. The method of separating gas includes flowing a gas stream through a membrane, in which the membrane comprises a crosslinked mixture of a poly(ether-b-amide) copolymer and an acrylate-terminated poly(ethylene glycol) according to formula (I) or formula (II); and separating the gas stream via the membrane. In formulas (I) and (II), each n is of from 2 to 30; and each R is independently —H or —CH3.

公开(公告)号：US20170348649A1

公开(公告)日：2017-12-07

申请号：US15539355

申请日：2015-12-25

申请人： TORAY INDUSTRIES, INC.

发明人： Masayuki HANAKAWA ,  Kenta IWAI ,  Toshiyuki ISHIZAKI ,  Tamotsu KITADE ,  Masahiro KIMURA

IPC分类号： B01D71/34 ,  B01D69/08 ,  B01D69/02

CPC分类号： B01D71/34 ,  B01D67/0016 ,  B01D67/0018 ,  B01D67/0027 ,  B01D69/02 ,  B01D69/08 ,  B01D71/32 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/24 ,  B01D2325/30 ,  B01D2325/32 ,  B01D2325/34

摘要： An object of the present invention is to provide a porous hollow-fiber membrane having high strength while maintaining high pure-water permeation performance. A porous hollow-fiber membrane of the present invention is a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane, and a molecular chain of the fluororesin-based polymer is oriented in the longitudinal direction of the porous hollow-fiber membrane.

公开(公告)号：US20120125835A1

公开(公告)日：2012-05-24

申请号：US13388582

申请日：2010-07-29

申请人： Julio A Abusleme ,  Ivan Pagin ,  Anna Maria Bertasa

发明人： Julio A Abusleme ,  Ivan Pagin ,  Anna Maria Bertasa

IPC分类号： B01D71/00 ,  B01D67/00 ,  B29D7/00

CPC分类号： B01D71/32 ,  B01D67/0011 ,  B01D69/08 ,  B01D2325/32

摘要： The invention relates to a process for the production of membranes based on ethylene/chlorotrifluoroethylene polymers having a melting temperature not exceeding 200° C. The process relies on the diffusion induced phase separation of the ethylene/chlorotrifluoroethylene polymer from a solution and comprises the steps of providing a solution comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. in a solvent; casting the polymer solution into a film; immersing the film in a non-solvent bath to precipitate the polymer. Membranes made of compositions comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. and at least one second polymer are also disclosed.

摘要翻译： 本发明涉及一种基于熔融温度不超过200℃的乙烯/三氟氯乙烯聚合物生产膜的方法。该方法依赖于乙烯/氯三氟乙烯聚合物从溶液中的扩散诱导相分离，并且包括以下步骤： 在溶剂中提供包含熔点不超过200℃的乙烯/氯三氟乙烯聚合物的溶液; 将聚合物溶液浇铸成膜; 将膜浸入非溶剂浴中以沉淀聚合物。 还公开了由包含熔融温度不超过200℃的乙烯/三氟氯乙烯聚合物和至少一种第二聚合物的组合物制成的膜。

公开(公告)号：US07927540B2

公开(公告)日：2011-04-19

申请号：US12184634

申请日：2008-08-01

申请人： Alan Smithies ,  Jack T. Clements ,  David Charles Jones ,  Hyun Sung Lim

发明人： Alan Smithies ,  Jack T. Clements ,  David Charles Jones ,  Hyun Sung Lim

IPC分类号： D01D5/08

CPC分类号： B01D46/546 ,  B01D39/1623 ,  B01D39/163 ,  B01D46/0001 ,  B01D46/521 ,  B01D63/065 ,  B01D63/067 ,  B01D69/02 ,  B01D69/10 ,  B01D71/06 ,  B01D2239/0216 ,  B01D2239/0225 ,  B01D2239/025 ,  B01D2239/064 ,  B01D2239/065 ,  B01D2275/10 ,  B01D2323/39 ,  B01D2325/20 ,  B01D2325/32 ,  D01D5/0069 ,  D01D5/0084 ,  D01D5/0985 ,  D04H1/4374 ,  D04H1/559 ,  D04H1/728 ,  D04H3/14

摘要： A method of making a composite filter media includes, in an exemplary embodiment, forming a nonwoven fabric mat that includes a plurality of synthetic fibers by a spunbond process, and calendaring the nonwoven fabric mat with embossing calendar rolls to form a bond area pattern comprising a plurality of substantially parallel discontinuous lines of bond area to bond the synthetic fibers together to form a nonwoven fabric, the nonwoven fabric having a minimum filtration efficiency of about 50%, measured in accordance with ASHRAE 52.2-1999 test procedure. The method also includes applying a nanofiber layer by electro-blown spinning a polymer solution to form a plurality of nanofibers on at least one side of the nonwoven fabric mat to form the composite filter media, the composite filter media having a minimum filtration efficiency of about 75%, measured in accordance with ASHRAE 52.2-1999 test procedure.

摘要翻译： 在一个示例性实施方案中，制备复合过滤介质的方法包括：通过纺粘方法形成包括多个合成纤维的非织造织物垫，并用压花压延辊压制非织造织物垫，以形成包含 多个基本上平行的不连续的粘合区域线，以将合成纤维粘合在一起形成非织造织物，该非织造织物具有根据ASHRAE 52.2-1999测试程序测量的约50％的最小过滤效率。 该方法还包括通过电纺丝聚合物溶液来应用纳米纤维层，以在非织造织物垫的至少一侧上形成多个纳米纤维以形成复合过滤介质，复合过滤介质具有最小的过滤效率约为 75％，按照ASHRAE 52.2-1999测试程序测量。

公开(公告)号：US07455772B2

公开(公告)日：2008-11-25

申请号：US11629350

申请日：2005-06-08

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

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

IPC分类号： B01D39/00 ,  B01D30/14 ,  B23C65/00 ,  B32B1/00

CPC分类号： B01D69/08 ,  B01D67/0011 ,  B01D67/0018 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D71/34 ,  B01D2323/20 ,  B01D2325/24 ,  B01D2325/30 ,  B01D2325/32 ,  B01D2325/34 ,  Y10T428/249978

摘要： A vinylidene fluoride resin having a weight-average molecular weight as relatively high as 300,000 or higher is mixed with a plasticizer and good solvent for the vinylidene fluoride resin to obtain a composition. A molten extrudate of the composition in a hollow-fiber membrane state is contacted, on its outer side, with a cooling liquid inert to the vinylidene fluoride resin to thereby cool the extrudate. During the solidification, the vinylidene fluoride resin is moderately and mildly crystallized. Thus, a hollow-fiber porous vinylidene fluoride resin membrane is produced which has a high crystallinity represented by an enthalpy of crystal melting 58 J/g or higher. The hollow-fiber porous membrane obtained is excellent in mechanical strength represented by tensile strength and elongation at break and in chemical resistance. It is effectively used as a water microfiltration membrane.

摘要翻译： 将重均分子量相对高达30万以上的偏氟乙烯树脂与偏二氟乙烯树脂的增塑剂和良溶剂混合，得到组合物。 中空纤维膜状态的组合物的熔融挤出物在其外侧与对偏二氟乙烯树脂惰性的冷却液体接触，从而冷却挤出物。 在固化期间，偏二氟乙烯树脂中等温和地结晶。 因此，制造出具有高结晶度的中空纤维多孔偏氟乙烯树脂膜，其结晶度为58J / g以上。 获得的中空纤维多孔膜由拉伸强度和断裂伸长率和耐化学性表现的机械强度优异。 它被有效地用作水微滤膜。

公开(公告)号：US20150007729A1

公开(公告)日：2015-01-08

申请号：US14494747

申请日：2014-09-24

申请人： Ube Industries, Ltd.

发明人： Yutaka KANETSUKI ,  Nobuhiko FUKUDA ,  Nozomu TANIHARA ,  Tomohide NAKAMURA

IPC分类号： B01D53/22 ,  B01D63/02

CPC分类号： B01D53/22 ,  B01D53/228 ,  B01D63/02 ,  B01D63/023 ,  B01D69/02 ,  B01D71/64 ,  B01D2053/224 ,  B01D2256/10 ,  B01D2257/104 ,  B01D2311/13 ,  B01D2313/02 ,  B01D2313/04 ,  B01D2313/20 ,  B01D2313/21 ,  B01D2319/04 ,  B01D2325/20 ,  B01D2325/32

摘要： A process for producing nitrogen-rich air by feeding high temperature air at 150° C. or more to an air separation membrane module is described. After being placed at 175° C. for two hours, the air separation module exhibits a shape-retention ratio of 95% or more in one embodiment. The nitrogen-rich air can be fed to a fuel tank for an aircraft, for example.

摘要翻译： 描述了通过将空气分离膜组件在150℃以上的高温空气供给来生产富氮空气的方法。 在175℃放置2小时后，在一个实施方式中，空气分离组件的形状保持率为95％以上。 例如，富氮空气可以被供给到用于飞行器的燃料箱。

公开(公告)号：US20110168630A1

公开(公告)日：2011-07-14

申请号：US12957064

申请日：2010-11-30

申请人： Anne M. Mayes ,  Jonathan F. Hester ,  Pallab Banerjee ,  Ariya Akthakul ,  Glenn C. Mailand

发明人： Anne M. Mayes ,  Jonathan F. Hester ,  Pallab Banerjee ,  Ariya Akthakul ,  Glenn C. Mailand

IPC分类号： B01D61/00 ,  C08F283/06

CPC分类号： B01D67/0018 ,  B01D69/02 ,  B01D69/141 ,  B01D71/30 ,  B01D71/34 ,  B01D71/40 ,  B01D71/52 ,  B01D71/78 ,  B01D2323/02 ,  B01D2325/28 ,  B01D2325/32 ,  C08G81/00 ,  C08G81/021

摘要： The present invention relates to synthetic methods for grafting hydrophilic chains onto polymers, particularly hydrophobic polymers such as poly(vinyl chloride) (PVC), poly(vinylidene fluoride) (PVDF), and chlorinated polypropylene (cPP). Resulting polymers include comb polymers which can have a microphase-separated structure of hydrophilic domains provided by the hydrophilic chains. Articles prepared from these comb polymers, particularly derived from PVDF, include membranes for water filtration in which the hydrophilic domains provide a pathway for water transport. PVC can be plasticized by grafting the PVC with hydrophilic chains. In addition, such articles, particularly articles having biomedical applications, can display anti-thrombogenic properties.

摘要翻译： 本发明涉及将亲水链接枝到聚合物，特别是疏水性聚合物如聚（氯乙烯）（PVC），聚（偏二氟乙烯）（PVDF）和氯化聚丙烯（cPP））上的合成方法。 得到的聚合物包括梳状聚合物，其可以具有由亲水链提供的亲水结构域的微相分离结构。 由这些梳形聚合物制备的，特别是衍生自PVDF的制品包括用于水过滤的膜，其中亲水域提供水输送途径。 PVC可以通过亲水链接PVC来增塑。 此外，这些制品，特别是具有生物医学应用的制品，可以显示抗血栓形成性质。

公开(公告)号：US20100098872A1

公开(公告)日：2010-04-22

申请号：US12516841

申请日：2007-06-13

申请人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

发明人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

IPC分类号： C08J7/18 ,  B01D69/02

CPC分类号： B01D71/022 ,  B01D39/1692 ,  B01D39/2034 ,  B01D67/0041 ,  B01D67/0046 ,  B01D69/04 ,  B01D69/12 ,  B01D2323/12 ,  B01D2323/24 ,  B01D2323/35 ,  B01D2325/28 ,  B01D2325/32 ,  B22F5/106

摘要： The present invention relates to the production of filter membranes (10) and in particular to multilayered filters. The invention related to a method of producing a filter membrane (10) wherein at least two layers (12, 14) are sequentially built upon a forming member (18) such that, when the forming member (18) is removed, the resultant membrane (10) includes a plurality of apertures extending therethrough, and at least some of said apertures increase in cross-sectional area from a first surface of the membrane to a second surface of the membrane. The method of production reduces the risk of permanent plugging from particulates being trapped within the membrane itself and has strong bonds between the layers which reduce the risk of separation of the layers. The present method produces an even coverage of the forming member (18) which in turn results in a layer of uniform thickness. The layer can be controlled by changing the viscosity of the mixture into which the former (18) is dipped.

摘要翻译： 本发明涉及过滤膜（10）的生产，特别涉及多层过滤器。 本发明涉及一种生产过滤膜（10）的方法，其中至少两层（12,14）依次构建在成形构件（18）上，使得当去除成形构件（18）时，所得到的膜 （10）包括延伸穿过其中的多个孔，并且至少一些所述孔径从膜的第一表面到膜的第二表面的横截面面积增加。 生产方法降低了从膜内本身捕获的颗粒永久堵塞的风险，并且层之间具有很强的粘合力，从而降低了层的分离风险。 本方法产生均匀覆盖成形构件（18），其又形成均匀厚度的层。 可以通过改变浸入前者（18）的混合物的粘度来控制该层。