公开(公告)号：US12042769B2

公开(公告)日：2024-07-23

申请号：US16891510

申请日：2020-06-03

申请人： Membrion, Inc.

发明人： Gregory Matthew Newbloom ,  Olivia Marie Lenz ,  Phillip Reaves Pickett ,  Rachel Alexis Malone ,  Stephanie Lynn Candelaria ,  Yiheng Zhang ,  Kathryn Lynn Corp ,  Aditya Ashok Salunkhe ,  Matthew Jason Canin

IPC分类号： B01D53/22 ,  B01D67/00 ,  B01D69/10 ,  B01D69/14 ,  B01D71/02 ,  B01D71/66 ,  B01D71/70 ,  B01D71/78 ,  B01D71/82 ,  C25B9/23 ,  C25B13/04

CPC分类号： B01D69/148 ,  B01D67/00931 ,  B01D69/108 ,  B01D71/027 ,  B01D71/66 ,  B01D71/701 ,  B01D71/78 ,  B01D71/82 ,  C25B9/23 ,  C25B13/04 ,  B01D2313/40 ,  B01D2323/36 ,  B01D2325/0281 ,  B01D2325/12 ,  B01D2325/14 ,  B01D2325/42

摘要： Cation exchange membranes and materials including silica-based ceramics, and associated methods, are provided. In some aspects, cation exchange membranes that include a silica-based ceramic that forms a coating on and/or within a porous support membrane are described. The cation exchange membranes and materials may have certain structural or chemical attributes (e.g., pore size/distribution, chemical functionalization) that, alone or in combination, can result in advantageous performance characteristics in any of a variety of applications for which selective transport of positively charged ions through membranes/materials is desired. In some embodiments, the silica-based ceramic contains relatively small pores (e.g., substantially spherical nanopores) that may contribute to some such advantageous properties. In some embodiments, the cation exchange membrane or material includes sulfonate and/or sulfonic acid groups covalently bound to the silica-based ceramic.

公开(公告)号：US11970590B2

公开(公告)日：2024-04-30

申请号：US18097986

申请日：2023-01-17

申请人： Simon Fraser University

发明人： Steven Holdcroft ,  Thomas J. G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC分类号： C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/10 ,  H01M8/1023

CPC分类号： C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

摘要： Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US11826748B2

公开(公告)日：2023-11-28

申请号：US15674280

申请日：2017-08-10

申请人： Xergy Inc.

发明人： Bamdad Bahar ,  Jack Saltwick ,  Zhefei Li

IPC分类号： B01J47/12 ,  C08J3/24 ,  C08J3/28 ,  C08J5/22 ,  B01D69/10 ,  B01D71/52 ,  B01D71/82 ,  B01D69/12 ,  B01J39/04 ,  B01J39/18 ,  B01J41/04 ,  B01J41/12

CPC分类号： B01J47/12 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D71/52 ,  B01D71/82 ,  B01J39/04 ,  B01J39/18 ,  B01J41/04 ,  B01J41/12 ,  C08J3/244 ,  C08J3/245 ,  C08J3/28 ,  C08J5/2256 ,  C08J5/2262 ,  B01D2323/30 ,  C08J2371/00

摘要： An ion exchange membrane is provided which includes an ion exchange polymer that is partially cross-linked. The partially cross-linked ion exchange polymer will be more stable and will not be washed out over time. The ion exchange polymer may be UV or chemically cross-linked, wherein a cross-linking compound is added to the ion exchange polymer either before or after coupling to a support material. A support material may be made of, or be coated with, a cross-linking compound and the support material may initiate cross-linking proximal to the support material. The support material may be made of a material that chemically bonds with the ionomer.

公开(公告)号：US20230311068A1

公开(公告)日：2023-10-05

申请号：US17996946

申请日：2021-09-08

申请人： DREISAM (BEIJING) MEDICAL TECHNOLOGY, CO., LTD.

发明人： Peng Zou

IPC分类号： B01D67/00 ,  B01D71/82

CPC分类号： B01D67/0009 ,  B01D67/0006 ,  B01D71/82 ,  B01D2323/02 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2323/345 ,  B01D2323/36 ,  G01N27/327

摘要： Provided by the present invention is a method for preparing a porous polymer semipermeable membrane, wherein a hydrophobic polynorbornene polymer and a hydrophilic small-molecule crosslinking agent containing a thiol functional group are mixed and dissolved in a solvent capable of dissolving both of them to obtain a coating solution; the coating solution is applied onto the surface of a biosensor electrode and dried such that the hydrophobic component and the hydrophilic component undergo phase separation; then, a membrane is formed and crosslinking is carried out, the unreacted hydrophilic small-molecule crosslinking agent is removed, and re-drying is carried out to obtain a porous polymer semipermeable membrane; also disclosed is a product. For the product obtained by the preparation method of the present invention, the hydrophobicity of the polymer enables good adhesion of the porous polymer semipermeable membrane to the surface of the biosensor, and the porous structure ensures the diffusion of biological substances to the surface of the biosensor, and regulates the diffusion rate of the biological substances in the semipermeable membrane without changing the thickness of the polymer membrane significantly.

公开(公告)号：US20230271131A1

公开(公告)日：2023-08-31

申请号：US18143758

申请日：2023-05-05

申请人： Covation Inc.

发明人： Beth Ann ELLIOTT ,  Ken-Hsuan LIAO ,  Mark Brandon SHIFLETT

IPC分类号： B01D53/22 ,  B01D71/48 ,  B01D71/76 ,  B01D71/82

CPC分类号： B01D53/228 ,  B01D71/48 ,  B01D71/76 ,  B01D71/82 ,  B01D71/50

摘要： Disclosed herein is a gas separation membrane comprising a furan-based polymer, an apparatus comprising the gas separation membrane, and a process for separating a mixture of gases using said gas separation membrane. The process comprises contacting one side of a gas separation membrane comprising a furan-based polymer with a mixture of gases having different gas permeances, whereby at least one gas from the mixture of gases permeates preferentially across the gas separation membrane, thereby separating the at least one gas from the mixture of gases.

公开(公告)号：US11724230B2

公开(公告)日：2023-08-15

申请号：US16870577

申请日：2020-05-08

申请人： Saudi Arabian Oil Company

发明人： Seung-Hak Choi ,  Mohammad S. Al-Qahtani ,  Eyad A. Qasem

IPC分类号： B01D53/22 ,  B01D53/26 ,  B01D69/12 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  B01D71/82 ,  B01D67/00 ,  B01D69/02 ,  B01D71/52

CPC分类号： B01D53/228 ,  B01D53/268 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/12 ,  B01D69/125 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  B01D71/82 ,  B01D71/52 ,  B01D2053/223 ,  B01D2256/10 ,  B01D2256/22 ,  B01D2256/245 ,  B01D2257/108 ,  B01D2257/11 ,  B01D2311/04 ,  B01D2325/04 ,  B01D2325/20

摘要： A gas separation membrane for selective separation of hydrogen and helium from gas mixtures containing carbon dioxide includes a porous support layer, an aromatic polyamide layer on the porous support layer, and a coating including a glassy polymer formed on the aromatic polyamide layer. A glass transition temperature of the glassy polymer is greater than 50° C. The gas separation membrane may be formed by contacting a solution including the glassy polymer with an aromatic polyamide layer of a composite membrane and drying the solution to form a coating of the glassy polymer on the aromatic polyamide layer. Separating hydrogen or helium from a gas stream including carbon dioxide includes contacting a gas feed stream including carbon dioxide with the gas separation membrane to yield a permeate stream having a concentration of helium or hydrogen that exceeds the concentration of helium or hydrogen, respectively, in the gas feed stream.

公开(公告)号：US11712668B2

公开(公告)日：2023-08-01

申请号：US16630998

申请日：2018-07-18

申请人： GAMBRO LUNDIA AB

发明人： Ralf Menda ,  Evelyn Grossmann ,  Carina Zweigart ,  Bernd Bauer ,  Michael Schuster

IPC分类号： B01D69/08 ,  B01D65/02 ,  B01D67/00 ,  B01D69/02 ,  B01D71/44 ,  B01D71/68 ,  B01D71/82

CPC分类号： B01D69/08 ,  B01D65/022 ,  B01D67/0016 ,  B01D67/0095 ,  B01D69/02 ,  B01D71/44 ,  B01D71/68 ,  B01D71/82 ,  B01D2321/08 ,  B01D2321/346 ,  B01D2323/12 ,  B01D2325/026 ,  B01D2325/16 ,  B01D2325/24 ,  B01D2325/48

摘要： The present disclosure relates to a microporous hollow fiber filter membrane having a large inner diameter and a thin wall. The fiber can be used for sterile filtration of liquids or removal of particles from liquids. The disclosure further relates to a method for producing the membrane and a filter device comprising the membrane.

公开(公告)号：US11679356B2

公开(公告)日：2023-06-20

申请号：US17051706

申请日：2019-04-30

申请人： SINTEF TTO AS

发明人： Marius Sandru ,  Eugenia Mariana Sandru ,  Per Martin Stenstad

IPC分类号： B01D53/22 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/32 ,  B01D71/70 ,  B01D71/78 ,  B01D71/82

CPC分类号： B01D53/228 ,  B01D67/009 ,  B01D67/0093 ,  B01D69/02 ,  B01D69/105 ,  B01D69/12 ,  B01D71/32 ,  B01D71/70 ,  B01D71/78 ,  B01D71/82 ,  B01D2256/10 ,  B01D2256/245 ,  B01D2257/504 ,  B01D2323/345 ,  B01D2323/36 ,  B01D2323/385 ,  B01D2325/20

摘要： The present invention relates to a CO2 selective gas separation membrane and a method for preparing the gas separation membrane and the use thereof. The CO2 selective gas separation membrane comprises a gas permeable or porous support layer; and at least one gas permeable polymer layer, which is surface modified with polymer chains having CO2 philic groups, wherein the gas permeable polymer layer has a spatially controlled distribution of the CO2 philic groups on the surface thereof. The method of preparing the CO2 selective gas separation membrane, comprises the steps of: depositing at least one gas permeable polymer layer on a porous or gas permeable support layer to form a dense membrane, and surface modifying the dense membrane with polymer chains having CO2 philic groups, to obtain spatially controlled distribution of the CO2 philic groups on the surface thereof.

公开(公告)号：US20230182083A1

公开(公告)日：2023-06-15

申请号：US17926393

申请日：2021-06-02

申请人： DWI - LEIBNIZ-INSTITUT FUR INERAKTIVE MATERIALIEN E.V.

发明人： Stephan EMONDS ,  Johannes KAMP ,  Matthias WESSLING

IPC分类号： B01D67/00 ,  B01D69/02 ,  B01D69/06 ,  B01D69/08 ,  B01D69/04 ,  B01D69/12 ,  B01D71/28 ,  B01D71/62 ,  B01D71/82

CPC分类号： B01D67/0011 ,  B01D69/02 ,  B01D67/00165 ,  B01D69/06 ,  B01D69/08 ,  B01D69/04 ,  B01D69/12 ,  B01D71/281 ,  B01D71/62 ,  B01D71/82 ,  B01D2325/18 ,  B01D2323/06 ,  B01D2323/12 ,  B01D2323/36 ,  B01D2323/40

摘要： The present invention relates to a method for producing a polyelectrolyte complex (PEC) membrane having a predetermined porosity via salt dilution induced phase separation, in which a liquid polymer solution (P) containing polyanions (A) and polycations (C) dissolved in an aqueous medium at an overcritical salt concentration is exposed to an aqueous medium.

公开(公告)号：US20230159716A1

公开(公告)日：2023-05-25

申请号：US18097986

申请日：2023-01-17

申请人： Simon Fraser University

发明人： Steven Holdcroft ,  Thomas J.G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC分类号： C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023

CPC分类号： C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

摘要： Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.