公开(公告)号：US20240278194A1

公开(公告)日：2024-08-22

申请号：US18569729

申请日：2022-06-15

Applicant: Monash University

Inventor： Mainak MAJUMDER ,  Abozar AKBARIVAKILABADI ,  Sally EL MERAGAWI ,  Petar JOVANOVIC

IPC: B01D71/06 ,  B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  C02F1/44

CPC classification number: B01D71/06 ,  B01D61/027 ,  B01D67/0079 ,  B01D69/02 ,  C02F1/442 ,  B01D2323/345 ,  B01D2325/04 ,  B01D2325/20

Abstract: Disclosed herein is a phenolic-graphene oxide composition comprising phenolic-graphene oxide having a carbon to oxygen (C:O) ratio of 2.1 or greater and 5 or less.

公开(公告)号：US20240278172A1

公开(公告)日：2024-08-22

申请号：US18653657

申请日：2024-05-02

Applicant: Liquidity Corporation

Inventor： Tomás Colussi ,  Ashwin Gulati

IPC: B01D53/22 ,  A47B96/20 ,  B01D39/16 ,  B01D46/00 ,  B01D46/54 ,  B01D63/14 ,  B01D69/02 ,  B01D69/10 ,  B01D71/06 ,  F24F8/108

CPC classification number: B01D53/228 ,  B01D39/163 ,  B01D46/0028 ,  B01D46/543 ,  B01D63/14 ,  B01D69/02 ,  B01D69/1071 ,  B01D71/06 ,  F24F8/108 ,  A47B96/20 ,  B01D2053/221 ,  B01D2239/025 ,  B01D2239/0442 ,  B01D2239/0492 ,  B01D2239/0631 ,  B01D2239/1233 ,  B01D2239/1258 ,  B01D2279/50 ,  B01D2279/65 ,  B01D2313/44 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/44 ,  B01D2325/48

Abstract: An air filtration membrane includes a substrate and a network of electrospun polymeric nanofibers deposited on the substrate, wherein the air filtration membrane has a minimum air filtration efficiency of between MERV 13 and HEPA filtration. One or more layers of the air filtration membrane can include applied antimicrobial nanoparticles.

公开(公告)号：US20240157303A1

公开(公告)日：2024-05-16

申请号：US18284542

申请日：2022-04-06

Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

Inventor： Paul GASTAUER ,  Franz KUGELMANN ,  Michael PAUL ,  Andreas RUFFING ,  Tobias VEIT

IPC: B01D63/02 ,  B01D61/24 ,  B01D61/28 ,  B01D71/06

CPC classification number: B01D63/021 ,  B01D61/243 ,  B01D61/28 ,  B01D71/06 ,  B01D2313/04 ,  B01D2313/205 ,  B01D2313/2061 ,  B01D2313/21

Abstract: The invention relates to a filter device for the exchange of substances, comprising a pipe section-shaped housing with a center of gravity and with two housing ends, in which housing a hollow fiber bundle consisting of semi-permeable membranes is arranged, comprising, furthermore, an end cap having a first and second opening, wherein the housing and the end cap configure a first sealing surface which connects the housing and the end cap sealingly, and wherein the first sealing surface is spaced apart further from the center of gravity of the housing than the aperture, and wherein a first fluid chamber is formed between the first sealing surface and the first opening of the end cap, via which first fluid chamber the first opening is connected to the first flow chamber, wherein the housing and the one end cap configure a second sealing surface, wherein the first and second sealing surface are not configured by way of a sealant.

公开(公告)号：US20240050905A1

公开(公告)日：2024-02-15

申请号：US18494333

申请日：2023-10-25

Applicant: Global Life Sciences Solutions USA LLC

Inventor： Ralph Stankowski ,  Douglas Albagli ,  William A. Hennessy

IPC: B01D71/06 ,  B01D67/00 ,  B01D69/02

CPC classification number: B01D71/06 ,  B01D67/0037 ,  B01D69/02 ,  B01D2325/04

Abstract: A biocompatible polymeric membrane includes pores defined between two material layers, where the first membrane material layer includes strips, and the second membrane material binds to each of the plurality of first membrane material layer strips includes a plurality of windows exposing each of the first membrane material strips. The biocompatible polymeric filtration membrane comprises pores defined by uniform passages defined by the first membrane material layer strips and the second membrane material layer within each window.

公开(公告)号：US11577971B2

公开(公告)日：2023-02-14

申请号：US16317776

申请日：2017-09-29

Applicant: LG CHEM, LTD.

Inventor： Ayoung Lee ,  Sung Kyung Park ,  Chong Kyu Shin ,  Bong Ju Kwak

IPC: C02F1/44 ,  B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/12 ,  B01D71/56 ,  C09D129/04 ,  B01D71/38 ,  B01D71/06 ,  B01D71/52 ,  C08J7/04 ,  B01D69/10

Abstract: The present specification provides a composition comprising a material of Chemical Formula 1: having a molecular weight of 500,000 to 700,000 where R1 and R2 are the same as or different from each other, and each independently is hydrogen, deuterium, or an alkyl group, and n is from 10,000 to 20,000, for forming a reverse osmosis membrane protective layer, a method for preparing a reverse osmosis membrane using the same, a reverse osmosis membrane and a water-treatment module.

公开(公告)号：US20230030684A1

公开(公告)日：2023-02-02

申请号：US17870682

申请日：2022-07-21

Applicant: Khalifa University of Science and Technology

Inventor： TieJun Zhang ,  Faisal Al Marzooqi ,  Hongxia Li ,  Aikifa Raza ,  Afra Saeed Alketbi ,  Abdulrahman Outhman Kharbatli

IPC: B29C64/124 ,  B01D71/06 ,  B01D71/02 ,  B01D67/00 ,  B33Y10/00 ,  B33Y40/20

Abstract: Three-dimensional printing on a membrane of a filtration device is described herein. Forming the filtration device involves receiving a membrane comprising a porous material, depositing an ink into pores of the porous material, causing the ink to solidify, and continuously building three-dimensional printed structures via micro-stereolithographic three-dimensional printing. Solidifying the ink causes the ink to bond with the membrane.

公开(公告)号：US11529589B2

公开(公告)日：2022-12-20

申请号：US16756815

申请日：2018-10-12

Applicant: Sartorius Stedim Biotech GmbH

Inventor： Björn Hansmann ,  Jörg Hosch ,  Jan Schwellenbach

IPC: B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D71/06

Abstract: The present invention relates to a method for producing a porous monolayer polymer membrane, to a porous monolayer polymer membrane, and to the use of the polymer membrane for filtration.

公开(公告)号：US20220074831A1

公开(公告)日：2022-03-10

申请号：US17424396

申请日：2020-01-23

Applicant: BECTON DICKINSON AND COMPANY

Inventor： Qihua Xu ,  Kristin Weidemaier ,  Jon E. Salomon ,  Alexander G. Lastovich ,  Eric A. Fallows ,  Sean Connell ,  Joshua Herr ,  Meghan Wolfgang ,  Michael A. Brasch ,  Richard L. Moore ,  David S. Sebba ,  Cristian Clavijo ,  Shirley Ng ,  Richard Abbott ,  Alexander Adam Papp ,  Henry Li-Wei Fu ,  Caitlin Marie Austin ,  Sean Patrick Dowling ,  Owen Lewis Joyce ,  Michael L. Kiplinger ,  William Kevin Carpenter

IPC: G01N1/40 ,  B01D69/02 ,  B01D67/00 ,  B01D71/06 ,  B01D61/14 ,  C12M1/26 ,  C12M1/00

Abstract: Methods and apparatus provide filtration for concentrating analytes, such as bacteria or exosomes, of a biological sample, such as blood or urine. The technology may employ membrane devices that implement one or more tangential flow filtration processes such as in stages. An example membrane device may typically include a membrane having sides and ends. The membrane may selectively permit constituent(s) of the sample to pass through while retaining other constituents at one side. An input chamber of the device may include an inlet near one end and an outlet near the other end, and that may permit a tangential flow of the sample along the first side surface, and a trans-membrane passing of constituent(s). An output chamber of the device may be configured at the second side surface to receive the passing constituents. Such devices may be provided in a kit to facilitate targeting of a desired biological analyte concentration.

公开(公告)号：US20220072529A1

公开(公告)日：2022-03-10

申请号：US17527652

申请日：2021-11-16

Applicant: RENSSELAER POLYTECHNIC INSTITUTE

Inventor： Sangwoo LEE ,  Chulsung BAE ,  Musashi J. BRIEM ,  Sungmin PARK

IPC: B01J41/07 ,  B01D61/44 ,  B01D71/06 ,  B01J41/14 ,  B01J47/12 ,  C02F1/469 ,  C08F212/32 ,  C08J5/22

Abstract: The anion exchange membranes exhibit enhanced chemical stability and ion conductivity when compared with traditional styrene-based alkaline anion exchange membranes. A copolymer backbone is polymerized from a reaction medium that includes a diphenylalkylene and an alkadiene. The copolymer includes a plurality of pendant phenyl groups. The diphenyl groups on the polymer backbone are functionalized with one or more haloalkylated precursor substrates. The terminal halide from the precursor substrate can then be substituted with a desired ionic group. The diphenylethylene-based alkaline anion exchange membranes lack the α-hydrogens sharing tertiary carbons with phenyl groups from polystyrene or styrene-based precursor polymers, resulting in higher chemical stability. The ionic groups are also apart from each other by about 3 to 6 carbons in the polymer backbone, enhancing ion conductivity. These membrane are advantageous for use in fuel cells, electrolyzers employing hydrogen, ion separations, etc.

公开(公告)号：US20210308630A1

公开(公告)日：2021-10-07

申请号：US17220447

申请日：2021-04-01

Applicant: Ralph Aaron Bauer ,  Hendrik Verweij

Inventor： Ralph Aaron Bauer ,  Hendrik Verweij

IPC: B01D69/10 ,  B01D69/04 ,  B01D71/06 ,  B01D71/02 ,  B01D69/02 ,  B01D69/06 ,  B01D53/22

Abstract: A porous support for nano-thickness membranes of less than 100 nanometers local surface roughness, suitable for the support of single-layer membranes of from about 1 to 500 nanometers in thickness, and for multiple layer membranes of up to about 2000 nanometers in aggregate thickness. The support also has a surface pore size of less than 100 nanometers and a surface porosity of less than 50 percent.