公开(公告)号：US20250041843A1

公开(公告)日：2025-02-06

申请号：US18783818

申请日：2024-07-25

Applicant: Versogen, Inc.

Inventor： Yushan Yan ,  Junhua Wang ,  Keda Hu ,  Lan Wang

IPC: B01J41/13 ,  H01M8/10 ,  H01M8/1023 ,  H01M8/1072

Abstract: Polymers with piperidinium-functionalized groups are provided. The hydroxide (anion) exchange membranes or hydroxide (anion) exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties upon tuning the polymer structure the combination and ratios of various aromatic and ketone units.

公开(公告)号：US20250041842A1

公开(公告)日：2025-02-06

申请号：US18229427

申请日：2023-08-02

Applicant: XEROX CORPORATION

Inventor： Robert Claridge

IPC: B01J41/13 ,  B01J41/05 ,  B01J47/12 ,  C08L71/00

Abstract: A structured organic film (SOF) composite is disclosed, including a structured organic film (SOF), which may include a plurality of segments; a plurality of linkers, where at least one of the plurality of linkers connects at least one of the plurality of segments. The composite also includes a polymer additive incorporated into the SOF. The polymer additive is present in the SOF in a plurality of nanodomains, ranging in size from about 50 nm to about 1 micron. The polymer additive may include a polysulfone. The polysulfone can be poly(oxy-1,4-phenylenesulfonyl-1,4-phenylene). The polymer additive is present in an amount of from about 5 wt % to about 25 wt % based on a total weight of the SOF composite. The structured organic film (SOF) composite may include an ionic segment or ionic capping segment.

公开(公告)号：US20240342699A1

公开(公告)日：2024-10-17

申请号：US18649475

申请日：2024-04-29

Applicant: USA Fortescue IP, INC.

Inventor： Bamdad Bahar ,  Taoli Gu

IPC: B01J41/13 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/28 ,  B01D71/52 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10

CPC classification number: B01J41/13 ,  B01D69/02 ,  B01D69/107 ,  B01D69/12 ,  B01D71/281 ,  B01D71/5221 ,  B01D71/5223 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10 ,  B01D2325/10 ,  B01D2325/42

Abstract: An ultra-thin anion exchange membrane incorporates functional additives to provide improved water management. Without the functional additives the ultra-thin membrane may have high cross-over and not be effective for many applications. A composite anion exchange membrane includes a porous scaffold support such as a porous polymer. The anion exchange polymer may be coupled to the porous scaffold, such as by being imbibed into the pores of the porous scaffold. The functional additives may contribute to increase water production, water retention, back-diffusion and reduce the gas crossover. A functional additive may include a reactive species, including a catalyst that reacts with oxygen or hydrogen, a plasticizer, a hygroscopic material and/or a radical scavenger.

公开(公告)号：US12109513B2

公开(公告)日：2024-10-08

申请号：US17260284

申请日：2019-05-22

Applicant: WEST INVEST SA

Inventor： Eric Reynaud ,  Eric Decanini

IPC: B01D15/22 ,  B01D15/36 ,  B01J41/07 ,  B01J41/13 ,  B01J47/022 ,  B01J47/04 ,  G01N30/60

CPC classification number: B01D15/22 ,  B01D15/363 ,  B01J41/07 ,  B01J41/13 ,  B01J47/022 ,  B01J47/04 ,  G01N30/6069

Abstract: A container for treating a fluid with an ion-exchange system is provided. The container includes a housing extending in an upright position between a bottom port and an opposed top port. The housing has an internal chamber. A bottom plate is disposed in the internal chamber above the bottom port and having a plurality of openings defined therethrough. The bottom plate divides the internal chamber between a main chamber and a bottom chamber. The bottom chamber is defined between the bottom plate and the bottom port. A plurality of diffusers extend from the bottom plate into the main chamber. Each one of the plurality of diffusers has a diffuser tube section projecting upwardly from the bottom plate and in fluid flow communication with the bottom chamber. The diffuser tube section has radial openings circumferentially distributed along a length thereof to radially discharge the fluid in the main chamber.

公开(公告)号：US11969722B2

公开(公告)日：2024-04-30

申请号：US16913767

申请日：2020-06-26

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Taoli Gu

IPC: B01D53/22 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10 ,  B01J41/13

CPC classification number: B01J41/13 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10 ,  B01D2325/02 ,  B01D2325/10 ,  B01D2325/42

Abstract: An ultra-thin anion exchange membrane incorporates functional additives to provide improved water management. Without the functional additives the ultra-thin membrane may have high cross-over and not be effective for many applications. A composite anion exchange membrane includes a porous scaffold support such as a porous polymer. The anion exchange polymer may be coupled to the porous scaffold, such as by being imbibed into the pores of the porous scaffold. The functional additives may contribute to increase water production, water retention, back-diffusion and reduce the gas crossover. A functional additive may include a reactive species, including a catalyst that reacts with oxygen or hydrogen, a plasticizer, a hygroscopic material and/or a radical scavenger.

公开(公告)号：US20230102700A1

公开(公告)日：2023-03-30

申请号：US17474198

申请日：2021-09-14

Applicant: UOP LLC

Inventor： Chaoyi Ba ,  Chunqing Liu ,  Xueliang Dong

IPC: B01J41/13 ,  H01M8/103 ,  H01M8/1004 ,  C25B13/08 ,  C25B1/04 ,  C25B11/032 ,  C08G73/06 ,  C08J5/22

Abstract: Anion exchange polymers having high OH− conductivity, chemical stability, and mechanical stability have been developed for use in AEMs. The anion exchange polymers have stable hydrophobic polymer backbones, stable hydrophilic quaternary ammonium cationic groups, and hydrophilic phenolic hydroxyl groups on the polymer side chains. The polymers have polymer backbones free of ether bonds, hydrophilic polymer side chains, and piperidinium ion-conducting functionality, which enables efficient and stable operation in water or CO2 electrolysis, redox flow battery, and fuel cell applications. The polymer comprises a plurality of repeating units of formula (I) Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.

公开(公告)号：US11224871B2

公开(公告)日：2022-01-18

申请号：US16614066

申请日：2018-05-17

Applicant: ASAHI KASEI MEDICAL CO., LTD.

Inventor： Naoki Morita ,  Hiroshi Tajima ,  Masashi Kogawa

IPC: B01J47/014 ,  A61M1/16 ,  B01J41/13 ,  B01D15/36 ,  B01J41/02 ,  B01J41/04 ,  B01J41/10 ,  B01J41/14 ,  B01J47/04

Abstract: The present invention provides a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having a most frequent pore size of 0.08 to 0.70 μm measured with a mercury porosimeter, the phosphate adsorbing agent for blood processing having a biocompatible polymer in the surface of the porous formed article.

公开(公告)号：US11173456B2

公开(公告)日：2021-11-16

申请号：US15448734

申请日：2017-03-03

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Chulsung Bae

IPC: H01M4/88 ,  B01D71/80 ,  B01D67/00 ,  B01J41/04 ,  B01J41/05 ,  B01J41/13 ,  B01D61/44 ,  B01D71/26 ,  B01J47/12 ,  C08G61/02 ,  C25B1/04 ,  C25B13/02 ,  C25B13/08 ,  H01M4/94 ,  H01M8/1004 ,  B01D69/10 ,  C08J5/22 ,  H01M8/1048 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1069 ,  C08G10/00

Abstract: 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 trimethylamine 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：US20210348132A1

公开(公告)日：2021-11-11

申请号：US17328687

申请日：2021-05-24

Applicant: The Trustees of the University of Pennsylvania

Inventor： Martin Lock ,  Mauricio Alvira

IPC: C12N7/02 ,  B01J20/281 ,  B01D15/08 ,  C12N7/00 ,  B01J41/13 ,  C12N15/86 ,  B01J47/022 ,  B01D15/38 ,  C12N15/864 ,  G01N21/33

Abstract: A two-step chromatography purification scheme is described which selectively captures and isolates the genome-containing rAAV vector particles from the clarified, concentrated supernatant of a rAAV production cell culture. The process utilizes an affinity capture method performed at a high salt concentration followed by an anion exchange resin method performed at high pH to provide rAAV vector particles which are substantially free of rAAV intermediates.

公开(公告)号：US20210308599A1

公开(公告)日：2021-10-07

申请号：US17354058

申请日：2021-06-22

Applicant: Melvin Hatch ,  Dionex Corporation

Inventor： Melvin Hatch ,  Christopher A. Pohl ,  Manikandan Jayaraman

IPC: B01D15/36 ,  B01J41/13 ,  B01J41/20 ,  B01J41/14 ,  B01J41/05

Abstract: An ion exchange resin for use as a stationary phase in an ion chromatography column. The ion exchange resin has a negatively charged substrate particle, a positively charged polymer layer bound to the negatively charged substrate particle, a linker, and an ion exchange group. The ion exchange group includes a sulfonamide group and an amine, in which the ion exchange group is coupled to the positively charged polymer layer via the linker. When the sulfonamide is in a neutral form, a positively charged amine group provides retention: while when the sulfonamide is in an anionic form, the sulfonamide anion becomes a counter ion to the positively charged amine group, forming a zwitterion that reduces retention at that site. Accordingly, the retention time is able to be controlled by adjusting the mobile phase pH.