公开(公告)号：US12172133B2

公开(公告)日：2024-12-24

申请号：US17049806

申请日：2019-05-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Akihiro Hayashi ,  Kaori Akaike ,  Suguru Ushiro ,  Yoshiyuki Ueno

IPC: B01D69/02 ,  B01D63/02 ,  B01D69/08 ,  B01D71/38 ,  B01D71/40 ,  B01D71/62 ,  B01D71/68 ,  C08J9/26

Abstract: Disclosed is a porous hollow fiber membrane containing a polysulfone-based polymer as a main component, which has an asymmetric structure in which the inner surface side is dense and the outer surface side is coarse, wherein an average of a minor axis diameter of pores of an inner surface is 20 nm or more and 40 nm or less, an open porosity of the inner surface is 10% or more and 30% or less, and a polymer including a monocarboxylic acid vinyl ester unit is supported on at least one of the outer surface and the inner surface. The present invention provides a hollow fiber membrane which has excellent removing performance of substances to be separated such as viruses, and can be used as a separation membrane having high permeability even in a treatment under low pressure.

公开(公告)号：US20240254303A1

公开(公告)日：2024-08-01

申请号：US18594101

申请日：2024-03-04

Applicant: Celgard, LLC

Inventor： Takahiko Kondo ,  Masaaki Okada ,  Stefan Reinartz ,  Daniel R. Alexander

IPC: C08J9/42 ,  B01D69/10 ,  B01D69/12 ,  B01D71/26 ,  B01D71/38 ,  H01G9/02 ,  H01G11/52 ,  H01M8/0239 ,  H01M10/052 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M50/497

CPC classification number: C08J9/42 ,  B01D69/1071 ,  B01D69/1216 ,  B01D71/261 ,  B01D71/262 ,  B01D71/381 ,  H01M8/0239 ,  H01M10/052 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M50/497 ,  B01D2325/021 ,  B01D2325/0281 ,  C08J2323/06 ,  C08J2323/12 ,  H01G9/02 ,  H01G11/52

Abstract: A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.

公开(公告)号：US20240091713A1

公开(公告)日：2024-03-21

申请号：US18514909

申请日：2023-11-20

Applicant: Bulk Nano Processing LLC

Inventor： Michael Andrew Moench

IPC: B01D63/16 ,  B01D67/00 ,  B01D69/12 ,  B01D71/02 ,  B01D71/36 ,  B01D71/38 ,  B01D71/50 ,  B01D71/56 ,  C01B32/15

CPC classification number: B01D63/16 ,  B01D67/0004 ,  B01D67/0086 ,  B01D69/12 ,  B01D71/021 ,  B01D71/36 ,  B01D71/38 ,  B01D71/50 ,  B01D71/56 ,  C01B32/15 ,  B01D2315/02

Abstract: An apparatus for roll-to-roll nanomaterial dispersion papermaking includes a suction pressure for consolidating nanomaterials on a fluid permeable filter in one region of the filter and an opposite pressure region or regions for separating a mat of the consolidated nanomaterials and transferring the mat to a transfer roller. A transfer roller may have a suction pressure within the transfer roller to help transfer the mat from the filter to the transfer roller, for example. An inlet port distributes nanomaterials using row and zone inlets, for example.

公开(公告)号：US20230226500A1

公开(公告)日：2023-07-20

申请号：US18123591

申请日：2023-03-20

Applicant: Avanpore LLC

Inventor： Benjamin Bikson

IPC: B01D69/12 ,  B01D67/00 ,  B01D69/10 ,  B01D71/38 ,  B01D71/64

CPC classification number: B01D69/125 ,  B01D67/0088 ,  B01D69/105 ,  B01D71/38 ,  B01D71/64 ,  B01D2323/28 ,  B01D2323/46 ,  B01D2325/022

Abstract: Disclosed is the preparation of composite membranes formed by a tailored selective chemical modification of an ultra-thin nanoporous surface layer of a semi-crystalline mesoporous poly (aryl ether ketone) membrane with graded density pore structure. The composite separation layer is synthesized in situ on the poly (aryl ether ketone) substrate surface and is covalently linked to the surface of the semi-crystalline mesoporous poly (aryl ether ketone) membrane. Hollow fiber configuration is the preferred embodiment of forming the functionalized the poly (aryl ether ketone) membranes. Composite poly (aryl ether ketone) membranes of the present invention are particularly useful for a broad range of fluid separation applications, including organic solvent ultrafiltration and nanofiltration to separate and recover active pharmaceutical ingredients.

公开(公告)号：US11666868B2

公开(公告)日：2023-06-06

申请号：US17590085

申请日：2022-02-01

Applicant: GAMBRO LUNDIA AB

Inventor： Adriana Boschetti-De-Fierro ,  Manuel Voigt ,  Bernd Krause ,  Markus Hornung ,  Markus Storr ,  Heinrich Behr ,  Werner Beck ,  Carina Zweigart ,  Reinhold Buck ,  Philipp Herbst ,  Joachim Loercher ,  Arnd Wochner

IPC: A61M1/16 ,  A61M1/34 ,  B01D61/24 ,  B01D71/68 ,  B01D63/02 ,  B01D69/08 ,  B01D71/38 ,  B01D71/44

CPC classification number: B01D71/68 ,  A61M1/1621 ,  A61M1/3413 ,  B01D61/243 ,  B01D63/021 ,  B01D69/081 ,  B01D69/084 ,  B01D69/087 ,  B01D71/38 ,  B01D71/44 ,  A61M1/16 ,  B01D2323/06 ,  B01D2323/12 ,  B01D2325/022 ,  B01D2325/025 ,  B01D2325/026 ,  B01D2325/04 ,  B01D2325/20

Abstract: The present disclosure relates to semipermeable membranes which are suitable for blood purification, e.g. by hemodialysis, which have an increased ability to remove larger molecules while at the same time effectively retaining albumin. The membranes are characterized by a molecular retention onset (MWRO) of between 9.0 kD and 14.5 kD and a molecular weight cut-off (MWCO) of between 55 kD and 130 kD as determined by dextran sieving curves and can be prepared by industrially feasible processes excluding a treatment with salt before drying. The invention therefore also relates to a process for the production of the membranes and to their use in medical applications.

公开(公告)号：US20230064768A1

公开(公告)日：2023-03-02

申请号：US17784335

申请日：2020-12-14

Applicant: Aquaporin A/S ,  Aquaporin Asia Pte Ltd

Inventor： Nur Amalyna Binte AZMAN ,  Yang ZHAO ,  Ye Wee SIEW ,  Dongyu LIU ,  Brett HOLMBERG ,  Guofei SUN ,  Ho Weng HONG ,  Xuan Tung NGUYEN

IPC: B01D69/12 ,  B01D65/08 ,  B01D67/00 ,  B01D69/02 ,  B01D71/56 ,  B01D71/38 ,  B01D69/14

Abstract: The present invention relates to an anti-fouling, semi-permeable membrane comprising a porous support layer, a thin film composite (TFC) layer formed on a surface of the support layer, and a cross-linked polyvinyl alcohol (PVA) layer formed on top of the TFC layer, wherein the cross-linked PVA layer is the reaction product of PVA and a cross-linking agent, said cross-linking agent being a polybasic acid comprising three or more acid groups or precursors thereof. The obtained membrane shows a high water flux and a low roughness suitable for an effective membrane notable for feed solution having a tendency of fouling the membrane.

公开(公告)号：US11466250B2

公开(公告)日：2022-10-11

申请号：US16343676

申请日：2017-10-20

Applicant: Memphasys Limited

Inventor： Xing Feng Zhao

IPC: G01N27/447 ,  C12N5/071 ,  B01D57/02 ,  B01D71/50 ,  C12N5/00 ,  C12N5/078 ,  C12N5/076 ,  B01D63/08 ,  B01D69/02 ,  B01D71/38

Abstract: The present invention relates to apparatuses for use in electrophoretic separation of macromolecules and/or cells, and in which circulating buffer streams are not required for the electrophoretic separation of macromolecules and/or cells. In certain embodiments, the electrophoretic apparatus disclosed herein comprise a sample chamber and a harvest chamber separated by a size-exclusion membrane; non-circulating buffer chambers flanking each respective sample chamber and harvest chamber, wherein each buffer chamber is separated from each respective sample chamber and harvest chamber by an ion-permeable membrane (restriction membrane), and wherein the buffer chambers are sealed and contain a buffer solution; and an electrode positioned in each buffer chamber. Also disclosed are related methods of using the electrophoretic apparatus disclosed herein.

公开(公告)号：US11433357B2

公开(公告)日：2022-09-06

申请号：US16906582

申请日：2020-06-19

Applicant: Henkel AG & Co. KGaA ,  Henkel IP & Holding GmbH

Inventor： Olaf Hartmann ,  Thomas Kamm ,  Juliane Kutter ,  Jose Garcia Miralles ,  Yongxia Brigitte Wang ,  Michael M. Izzo

IPC: B01D69/08 ,  B01D63/02 ,  B01D63/10 ,  B01D71/38

Abstract: The present invention provides a membrane filtration module comprising a housing in which the filtration membrane is disposed in a fixed positional relationship by a potting or bonding material obtained by the curing of a two component (2K) composition consisting of: a first component (A) comprising at least one compound (a) having at least two acetoacetate functional groups; and, a second component (B) comprising at least one compound (b) having at least one amino group, each said amino group being a primary or secondary amino group.

公开(公告)号：US20210362100A1

公开(公告)日：2021-11-25

申请号：US17278454

申请日：2019-12-25

Applicant: MARUZEN PETROCHEMICAL CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY

Inventor： Masakazu NISHIYA ,  Yasuhiko HASEGAWA ,  Hideto MATSUYAMA

IPC: B01D71/34 ,  B01D61/14 ,  B01D69/12 ,  C02F1/44 ,  B01D71/38

Abstract: [Problem to be Solved]
Provided is a polyvinylidene fluoride resin-made porous membrane having excellent hydrophilicity, permeability, and fouling resistance and having suppressed elution of vinyl ether copolymer by using a small amount of vinyl ether copolymer.
[Means to Solve the Problem]
The porous membrane according to the invention comprises a polyvinylidene fluoride resin as a matrix material and a vinyl ether copolymer, wherein the vinyl ether copolymer is a copolymer of an oxyethylene group-containing vinyl ether monomer and a hydrocarbon group-containing vinyl ether monomer.

公开(公告)号：US11155785B2

公开(公告)日：2021-10-26

申请号：US16338065

申请日：2017-09-25

Applicant: Toray Industries, Inc.

Inventor： Kenichi Harimoto ,  Hirokazu Sakaguchi ,  Kota Hatta ,  Kazuhiro Tanahashi

IPC: C12N5/078 ,  B01D63/02 ,  B01D69/08 ,  B01D71/68 ,  B01D71/38 ,  B01D71/62 ,  C12M1/00

Abstract: The present invention provides a hollow fiber membrane module which makes it possible to concentrate incubated platelets by efficiently removing water from an incubated platelet suspension liquid containing incubated platelets while suppressing deterioration of the function of the incubated platelets. The present invention provides an incubated platelet concentration module in which a plurality of hollow fiber membranes each having pores with an average pore diameter of 2 μm or less on a surface of the hollow fiber membrane are packed in a casing having at least one inlet for supplying an incubated platelet suspension liquid before concentration into the hollow fiber membranes, wherein a value (X/Y1) obtained by dividing a total cross-sectional area (X) of the plurality of hollow fiber membranes by a total cross-sectional area (Y1) of the least one inlet is 4.0 or less.