公开(公告)号：US20240100485A1

公开(公告)日：2024-03-28

申请号：US18262633

申请日：2022-01-22

申请人： Cornell University

发明人： Ulrich B. Wiesner ,  Yusuke Hibi

IPC分类号： B01D67/00 ,  B01D69/02 ,  B01D71/28 ,  B01D71/44 ,  B01D71/68 ,  B01D71/80 ,  C08F212/08 ,  C08F226/06 ,  C08J5/18 ,  C08K3/22 ,  C08L53/00 ,  C08L81/06

CPC分类号： B01D67/00111 ,  B01D69/02 ,  B01D71/281 ,  B01D71/44 ,  B01D71/68 ,  B01D71/80 ,  C08F212/08 ,  C08F226/06 ,  C08J5/18 ,  C08K3/22 ,  C08L53/00 ,  C08L81/06 ,  B01D2325/0233 ,  C08K2003/2241 ,  C08K2201/011

摘要： Asymmetric films, methods of making asymmetric films, and uses of asymmetric films. A method may include using at least two different solvents and at least one homopolymer and at least one block copolymer that can undergo self assembly, where the solvents are immiscible and have different surface tension, where, on film formation, all or substantially all of the block copolymer(s) migrate to an exterior surface of the homopolymer. The asymmetric films may include an isoporous region or layer and an asymmetric region or layer, where the asymmetric region does not include 10 percent by weight or more of the multiblock copolymer(s) and/or the isoporous region/layer and the asymmetric pore region/layer are not independently (or separately) formed and/or not laminated together to form the asymmetric film. The films can be used in devices, such as, for example, filtration devices.

公开(公告)号：US20230390710A1

公开(公告)日：2023-12-07

申请号：US18034462

申请日：2021-10-29

申请人： Arkema Inc.

发明人： Gregory S. O'BRIEN ,  Walter P. KOSAR ,  Saeid ZERAFATI

IPC分类号： B01D71/34 ,  B01D67/00 ,  B01D69/02

CPC分类号： B01D71/34 ,  B01D67/00111 ,  B01D67/0018 ,  B01D67/003 ,  B01D69/02 ,  B01D2323/21 ,  B01D2325/24 ,  B01D2325/20 ,  B01D2323/12 ,  B01D2323/219

摘要： This invention allows for the production of high strength and high permeability TIPS membranes using extractable fillers with fine powder PVDF grades.

公开(公告)号：US20240293777A1

公开(公告)日：2024-09-05

申请号：US18595191

申请日：2024-03-04

申请人： IVIVA Medical, Inc.

发明人： Charles C. Klassen ,  Harald C. Ott ,  Maria Jaramillo ,  Robert G. Hesse ,  Daniel Cheng

IPC分类号： B01D61/18 ,  A61L27/40 ,  A61M1/16 ,  A61M1/28 ,  A61M1/34 ,  B01D61/14 ,  B01D61/28 ,  B01D63/06 ,  B01D63/08 ,  B01D67/00

CPC分类号： B01D61/18 ,  A61L27/40 ,  A61M1/16 ,  A61M1/1678 ,  A61M1/1696 ,  A61M1/28 ,  A61M1/3417 ,  A61M1/3489 ,  B01D61/14 ,  B01D61/145 ,  B01D61/28 ,  B01D63/06 ,  B01D63/082 ,  B01D63/087 ,  B01D67/00111 ,  A61M2202/0021 ,  A61M2202/0413 ,  A61M2205/02 ,  A61M2205/75 ,  B01D2311/2626 ,  B01D2313/08 ,  B01D2313/54 ,  B01D2313/68 ,  B01D2319/06

摘要： Disclosed are apparatus and methods for blood and other biological fluid purification using a membrane with cell containing vascular channel systems and filtration channel systems. Also disclosed are methods of making the apparatus as well as methods of making membranes.

公开(公告)号：US11958014B2

公开(公告)日：2024-04-16

申请号：US18220916

申请日：2023-07-12

申请人： Harris Membrane Clean Technology Inc.

发明人： Jiang Wei ,  Chulong Chen ,  Wei Feng

IPC分类号： B01D61/02 ,  B01D61/08 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D71/34 ,  B01D71/68

CPC分类号： B01D61/027 ,  B01D61/08 ,  B01D67/00111 ,  B01D67/0013 ,  B01D69/02 ,  B01D69/105 ,  B01D69/1071 ,  B01D71/34 ,  B01D71/68 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/22 ,  B01D2325/02833 ,  B01D2325/04 ,  B01D2325/14 ,  B01D2325/26

摘要： A high-flux composite nanofiltration (NF) membrane with an electrical double layer (EDL) and a preparation method thereof are provided. The high-flux composite NF membrane includes: a charged support membrane and a charged separation layer, where a charge carried by the support membrane or the separation layer is a positive charge, a negative charge, or an amphiprotic charge. The high-flux composite NF membrane with an EDL solves the technical problem that the composite NF membrane in the prior art has an unsatisfactory retention rate and a limited application range due to a small charge quantity.

公开(公告)号：US11918955B2

公开(公告)日：2024-03-05

申请号：US17888262

申请日：2022-08-15

申请人： IVIVA Medical, Inc.

发明人： Charles C. Klassen ,  Harald C. Ott ,  Maria Jaramillo ,  Robert G. Hesse ,  Daniel Cheng

IPC分类号： B01D61/18 ,  A61L27/40 ,  A61M1/16 ,  A61M1/28 ,  A61M1/34 ,  B01D61/14 ,  B01D61/28 ,  B01D63/06 ,  B01D63/08 ,  B01D67/00

CPC分类号： B01D61/18 ,  A61L27/40 ,  A61M1/16 ,  A61M1/1678 ,  A61M1/1696 ,  A61M1/28 ,  A61M1/3417 ,  A61M1/3489 ,  B01D61/14 ,  B01D61/145 ,  B01D61/28 ,  B01D63/06 ,  B01D63/082 ,  B01D63/087 ,  B01D67/00111 ,  A61M2202/0021 ,  A61M2202/0413 ,  A61M2205/02 ,  A61M2205/75 ,  B01D2311/2626 ,  B01D2313/08 ,  B01D2313/54 ,  B01D2313/68 ,  B01D2319/06

摘要： Disclosed are apparatus and methods for blood and other biological fluid purification using a membrane with cell containing vascular channel systems and filtration channel systems. Also disclosed are methods of making the apparatus as well as methods of making membranes.

公开(公告)号：US20240325984A1

公开(公告)日：2024-10-03

申请号：US18618274

申请日：2024-03-27

申请人： THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

发明人： Ngai Yin YIP ,  Sanat K. KUMAR ,  Yuxuan HUANG ,  Marshall TEKELL

IPC分类号： B01D67/00 ,  B01D61/46 ,  B01D71/28

CPC分类号： B01D67/00111 ,  B01D61/46 ,  B01D71/281

摘要： Cation exchange membranes are prepared via facile methods to control sulfonation of polystyrene repeat units. An amount of sulfuric acid is reacted with an acetic anhydride to form an amount of acetyl sulfate. The acetyl sulfate is then added to a known concentration of polystyrene units in boiling dichloromethane (DCM) to form sulfonated polystyrene random copolymers, including a random distribution of sulfonated polystyrene repeats and unsulfonated polystyrene repeats, with sulfonation levels between about 0.07 and about 0.225. The sulfonation level can be controlled by adjusting reaction times, reaction temperatures, and sulfuric acid loading in the reaction mediums. These membranes, neutralized via alkali metals, exhibit high charge densities and low hydration degrees, and maintain high permselectivity under various high solution concentrations. The membranes can expand the operating range of ion-exchange membranes (IEMs) and enable numerous additional applications, including high-salinity electrodialysis, improved efficiency of the chloralkali process, water electrolyzers, fuel cells, etc.

公开(公告)号：US20240286090A1

公开(公告)日：2024-08-29

申请号：US18595406

申请日：2024-03-04

申请人： FFI IONIX IP, INC.

发明人： Bamdad Bahar ,  Chulsung Bae

IPC分类号： B01D71/80 ,  B01D61/44 ,  B01D67/00 ,  B01J41/04 ,  B01J41/05 ,  B01J41/13 ,  B01J47/12 ,  C08G10/00 ,  C08G61/02 ,  C08J5/22 ,  C25B1/04 ,  C25B13/02 ,  C25B13/08 ,  H01M4/88 ,  H01M4/94 ,  H01M8/1004 ,  H01M8/1048 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1069

CPC分类号： B01D71/80 ,  B01D61/44 ,  B01D67/00111 ,  B01J41/04 ,  B01J41/05 ,  B01J41/13 ,  B01J47/12 ,  C08G10/00 ,  C08G61/02 ,  C08J5/2262 ,  C25B1/04 ,  C25B13/02 ,  C25B13/08 ,  H01M4/881 ,  H01M4/94 ,  H01M8/1004 ,  H01M8/1048 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1069 ,  B01D2323/36 ,  B01D2325/42 ,  C08G2261/143 ,  C08G2261/146 ,  C08G2261/312 ,  C08G2261/3326 ,  C08G2261/516 ,  C08G2261/72 ,  C08J2365/00 ,  Y02E60/36 ,  Y02P70/50

摘要： An anion exchange membrane is made by mixing 2 trifluoroMethyl Ketone [nominal] (1.12 g, 4.53 mmol), 1 BiPhenyl (0.70 g, 4.53 mmol), methylene chloride (3.0 mL), trifluoromethanesulfonic acid (TFSA) (3.0 mL) to produce a pre-polymer. The pre-polymer is then functionalized to produce an anion exchange polymer. The pre-polymer may be functionalized with trimethylamamine in solution with water. The pre-polymer may be imbibed into a porous scaffold material, such as expanded polytetrafluoroethylene to produce a composite anion exchange membrane.

公开(公告)号：US20240075433A1

公开(公告)日：2024-03-07

申请号：US18248456

申请日：2021-10-04

申请人： GAMBRO LUNDIA AB

发明人： Matthias WESSLING ,  Michael ALDERS ,  Ilka ROSE ,  Michael KATHER ,  Ralf MENDA ,  Bernd KRAUSE ,  Markus STORR ,  Martin REMPFER ,  Vivian Stefan KURBEL

IPC分类号： B01D69/14 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/08 ,  B01D71/44 ,  B01D71/68

CPC分类号： B01D69/144 ,  B01D67/00111 ,  B01D69/02 ,  B01D69/08 ,  B01D71/08 ,  B01D71/441 ,  B01D71/68 ,  B01D2323/36 ,  B01D2325/14 ,  B01D2325/16 ,  B01D2325/36

摘要： The present disclosure relates to an anticoagulant-coated microporous hollow fiber membrane showing reduced thrombogenicity. The disclosure further relates to a method for producing the membrane and a filtration and/or diffusion device comprising the membrane.

公开(公告)号：US20230364559A1

公开(公告)日：2023-11-16

申请号：US18220916

申请日：2023-07-12

申请人： Harris Membrane Clean Technology Inc.

发明人： Jiang WEI ,  Chulong CHEN ,  Wei FENG

IPC分类号： B01D61/02 ,  B01D61/08 ,  B01D67/00 ,  B01D71/68 ,  B01D71/34 ,  B01D69/02 ,  B01D69/10

CPC分类号： B01D61/027 ,  B01D61/08 ,  B01D67/00111 ,  B01D71/68 ,  B01D71/34 ,  B01D67/0013 ,  B01D69/02 ,  B01D69/105 ,  B01D69/1071 ,  B01D2325/04 ,  B01D2325/02833 ,  B01D2325/14 ,  B01D2325/26 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/22

摘要： A high-flux composite nanofiltration (NF) membrane with an electrical double layer (EDL) and a preparation method thereof are provided. The high-flux composite NF membrane includes: a charged support membrane and a charged separation layer, where a charge carried by the support membrane or the separation layer is a positive charge, a negative charge, or an amphiprotic charge. The high-flux composite NF membrane with an EDL solves the technical problem that the composite NF membrane in the prior art has an unsatisfactory retention rate and a limited application range due to a small charge quantity.