公开(公告)号：US20240325977A1

公开(公告)日：2024-10-03

申请号：US18576187

申请日：2022-08-31

Applicant: Asahi Kasei Kabushiki Kaisha

Inventor： Yuji Katayama ,  Masato Mikawa ,  Takahiro Osaki

IPC: B01D61/00 ,  B01D67/00 ,  B01D69/04 ,  B01D69/06 ,  B01D69/08 ,  B01D69/10 ,  B01D71/56 ,  G01N1/40

CPC classification number: B01D61/005 ,  B01D67/0016 ,  B01D69/043 ,  B01D69/06 ,  B01D69/087 ,  B01D69/10 ,  B01D71/56 ,  G01N1/4005 ,  G01N2001/4016

Abstract: The present invention is a concentration method for concentrating, before performing analysis using an analysis device, an analysis solution that includes an analysis solute and an analysis solvent. The concentration method is based on forward osmosis in which, using a concentration device, the analysis solution and the induction solution are brought into mutual contact via a forward osmosis membrane so that the analysis solvent within the analysis solution is removed by being allowed to pass through the forward osmosis membrane and be transferred into the induction solvent. The concentration device includes: a forward osmosis membrane module including the forward osmosis membrane; an analysis solution tank; analysis solution feed piping: an induction solution tank; and induction solution feed piping. The total of the capacity of an analysis solution fluid flow section of the forward osmosis membrane module and the capacity of the analysis solution feed piping is 500 mL or less. The concentration of the analysis solute in the analysis solution is 0.01 ppm or less, and the concentration of the analysis solute in the analysis solution after concentration is 0.02 ppm or greater.

公开(公告)号：US12104030B2

公开(公告)日：2024-10-01

申请号：US18235785

申请日：2023-08-18

Applicant: DANKOOK UNIVERSITY CHEONAN CAMPUS INDUSTRY ACADEMIC COOPERATION FOUNDATION

Inventor： Chang Hyun Lee ,  Jin Pyo Hwang

IPC: C08J5/22 ,  B01D61/44 ,  B01D67/00 ,  B01D69/10 ,  B01D69/12 ,  B01D71/26 ,  B01D71/36 ,  B01D71/48 ,  B01D71/56 ,  B01D71/64 ,  B01D71/66 ,  B01J39/20 ,  B01J41/13 ,  B01J41/14

CPC classification number: C08J5/2293 ,  B01D61/44 ,  B01D67/0093 ,  B01D69/107 ,  B01D69/12 ,  B01D71/261 ,  B01D71/262 ,  B01D71/36 ,  B01D71/48 ,  B01D71/56 ,  B01D71/64 ,  B01D71/66 ,  B01J41/13 ,  B01J41/14 ,  C08J5/2281 ,  B01J39/20 ,  C08J2327/18

Abstract: The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as an ammonium group, a phosphonium group, an imidazolium group, a pyridinium group and a sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.

公开(公告)号：US12102967B2

公开(公告)日：2024-10-01

申请号：US18607198

申请日：2024-03-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Isam H Aljundi ,  Abdelrahman M Awad

IPC: B01D69/14 ,  B01D53/22 ,  B01D67/00 ,  B01D69/12 ,  B01D71/02 ,  B01D71/56

CPC classification number: B01D69/148 ,  B01D53/228 ,  B01D67/0079 ,  B01D67/00791 ,  B01D67/00793 ,  B01D69/12 ,  B01D69/1251 ,  B01D71/021 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/56

Abstract: New carbon nanomaterials, preferably titanium carbide-derived carbon (CDC) nanoparticles, were embedded into a polyamide film to give CDC/polyamide mixed matrix membranes by the interfacial polymerization reaction of an aliphatic diamine, e.g., piperazine, and an activated aromatic dicarboxylate, e.g., isophthaloyl chloride, supported on a sulfone-containing polymer, e.g., polysulfone (PSF), layer, which is preferably previously prepared by dry/wet phase inversion. The inventive membranes can separate CO2 (or other gases) from mixtures of CO2 and further gases, esp. CH4, based upon the generally selective nanocomposite layer(s) of CDC/polyamide.

公开(公告)号：US12098280B2

公开(公告)日：2024-09-24

申请号：US16644322

申请日：2018-08-10

Applicant: Sabanci Universitesi ,  Istanbul Teknik Universitesi

Inventor： Yusuf Ziya Menceloglu ,  Serkan Unal ,  Selda Erkoç Ilter ,  Ismail Koyuncu ,  Jalal Al Din Sharabati ,  Serkan Guclu ,  Derya Yuksel Imer ,  Farzin Saffarimiandoab

IPC: B01D69/12 ,  B01D61/02 ,  B01D71/56 ,  C02F1/44 ,  C08G77/26 ,  C08G77/28 ,  C08L83/08

CPC classification number: C08L83/08 ,  B01D61/025 ,  B01D71/56 ,  C02F1/441 ,  C08G77/26 ,  C08G77/28 ,  B01D69/1251 ,  B01D2325/18 ,  C08L2205/04 ,  C08L2312/08

Abstract: The invention relates to polyamide polymeric films comprising zwitterionic polysiloxane. The films of the invention may be used for providing high performance in the filtration applications.

公开(公告)号：US12083481B2

公开(公告)日：2024-09-10

申请号：US17264777

申请日：2019-07-31

Applicant: Toray Advanced Materials Korea Inc.

Inventor： Jong Min Lee

IPC: B01D69/02 ,  B01D61/02 ,  B01D61/08 ,  B01D65/08 ,  B01D67/00 ,  B01D69/00 ,  B01D69/10 ,  B01D69/12 ,  B01D71/56 ,  B01D71/82 ,  C02F1/44

CPC classification number: B01D69/02 ,  B01D61/025 ,  B01D61/08 ,  B01D65/08 ,  B01D67/0006 ,  B01D69/00 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D71/56 ,  B01D71/82 ,  C02F1/441 ,  B01D2325/48 ,  C02F2303/04 ,  C02F2303/20

Abstract: The present invention relates to a fouling resistance reverse osmosis membrane, a method of manufacturing the same, and a fouling resistance reverse osmosis module including the same, and more specifically, to a fouling resistance reverse osmosis membrane, which has excellence in anti-fouling properties against fouling materials such as organic substances, inorganic substances, and the like, antimicrobial performance against microorganisms and the like, a flux, a salt removal rate, and retention of anti-fouling properties and antimicrobial performance, a method of manufacturing the same, and a fouling resistance reverse osmosis module including the same.

公开(公告)号：US20240293783A1

公开(公告)日：2024-09-05

申请号：US18440083

申请日：2024-02-13

Applicant: NITTO DENKO CORPORATION

Inventor： Tomotsugu MIYABE ,  Atsuki HIRABARA

IPC: B01D69/12 ,  B01D63/10 ,  B01D71/56 ,  B01D71/68

CPC classification number: B01D69/12 ,  B01D63/10 ,  B01D71/56 ,  B01D71/68 ,  B01D2325/20

Abstract: A composite semipermeable membrane includes: a porous support including a porous resin layer; and a separation functional layer formed of a polyamide-based resin on the porous resin layer. The polyamide-based resin contains a resin component derived from a divalent polyfunctional amine and a trivalent or higher polyfunctional acid halide, a molar ratio of the trivalent or higher polyfunctional acid halide to the divalent polyfunctional amine is in a range of 0.65 to 1.00, and a terminal carboxyl group concentration is 0.01 or less. The composite semipermeable membrane has an amide intensity ratio of 0.60 or more, the amide intensity ratio being a ratio of an absorption peak intensity derived from C═O stretching vibration of an amide group to an absorption peak intensity derived from a repeating unit of the porous resin layer, when measuring the absorption peaks by an ATR-IR method.

公开(公告)号：US20240228352A1

公开(公告)日：2024-07-11

申请号：US18692025

申请日：2022-09-12

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Joshua W. Griffis ,  Li-Shiang Liang ,  Scott Waugh ,  Charles P. Buzzel ,  Frederick C. Wilkins ,  Gray C. Ganzi

IPC: C02F9/00 ,  B01D61/02 ,  B01D61/04 ,  B01D61/06 ,  B01D61/42 ,  B01D61/48 ,  B01D61/58 ,  B01D71/56 ,  C02F1/44 ,  C02F1/469 ,  C02F103/08

CPC classification number: C02F9/00 ,  B01D61/06 ,  B01D61/58 ,  B01D71/56 ,  B01D61/027 ,  B01D61/04 ,  B01D61/423 ,  B01D61/48 ,  B01D2313/18 ,  B01D2313/246 ,  B01D2317/022 ,  B01D2317/025 ,  B01D2317/08 ,  C02F1/442 ,  C02F1/4695 ,  C02F2103/08 ,  C02F2209/40 ,  C02F2301/046 ,  C02F2301/08

Abstract: Systems for water desalination are disclosed. The systems include a source of non-potable water, a low pressure nanofiltration device, a first electrodialysis unit, a second electrodialysis unit, and recycle conduits. Methods of water desalination including directing non-potable water to a low pressure nanofiltration device, a first electrodialysis unit, and a second electrodialysis unit are also disclosed. Methods of facilitating water desalination by providing a water desalination system are also disclosed.

公开(公告)号：US20240181402A1

公开(公告)日：2024-06-06

申请号：US18512890

申请日：2023-11-17

Applicant: Pukyong National University Industry-University Cooperation Foundation

Inventor： Kie Yong CHO ,  Min Young SON ,  Young Je KWON ,  Jae Won PARK ,  Gyeong Min CHOI

IPC: B01D69/12 ,  B01D67/00 ,  B01D71/34 ,  B01D71/36 ,  B01D71/50 ,  B01D71/52 ,  B01D71/56

CPC classification number: B01D69/12 ,  B01D67/002 ,  B01D71/34 ,  B01D71/36 ,  B01D71/50 ,  B01D71/521 ,  B01D71/56 ,  B01D2323/42 ,  B01D2325/02834 ,  B01D2325/04

Abstract: There are provided a porous composite membrane formed by blending perfluoroalkoxy alkane (PFA) with an organic substance, and a manufacturing method thereof. The porous composite membrane is able to have pores easily formed simply by blending a fluorine-based polymer with an organic substance without additional pore-forming processes such as stretching and heating, and exhibit excellent properties in terms of resistance to high temperatures and strong acids due to the use of the fluorine-based polymer as a base material, so it is available for use in semiconductor wastewater treatment that uses strong acids like HF.

公开(公告)号：US20240175005A1

公开(公告)日：2024-05-30

申请号：US18284177

申请日：2022-03-31

Applicant: ModernaTX, Inc.

Inventor： Jennifer Beaudoin ,  Lance Dieter ,  Kaelyn Vik

IPC: C12N15/10 ,  B01D15/32 ,  B01D15/36 ,  B01D61/14 ,  B01D63/10 ,  B01D71/10 ,  B01D71/56

CPC classification number: C12N15/1017 ,  B01D15/325 ,  B01D15/363 ,  B01D61/145 ,  B01D63/10 ,  B01D71/10 ,  B01D71/56 ,  C12N15/101 ,  B01D2315/10

Abstract: This disclosure relates to purification and recycling nucleotide messenger RNA (mRNA) caps from the preparation of mRNA, which comprises isolating and purifying excess nucleotide mRNA caps from mRNA synthesis.

公开(公告)号：US20240173676A1

公开(公告)日：2024-05-30

申请号：US18285016

申请日：2022-03-29

Applicant: NITTO DENKO CORPORATION

Inventor： Bita BAGGE ,  Robb BAGGE ,  Shijun ZHENG ,  Weiping LIN ,  Peng WANG

IPC: B01D63/08 ,  B01D69/02 ,  B01D69/12 ,  B01D71/54 ,  B01D71/56 ,  B01D71/68

CPC classification number: B01D63/087 ,  B01D69/02 ,  B01D69/1213 ,  B01D71/54 ,  B01D71/56 ,  B01D71/68 ,  B01D2323/226

Abstract: Described herein are gas separation membranes that provide improved compatibility between the gutter layer and the porous support and/or the separation layer for gases. Such composite membranes have a high water/air selectivity in permeability.