公开(公告)号：US12097471B2

公开(公告)日：2024-09-24

申请号：US17294886

申请日：2019-11-15

申请人： Evoqua Water Technologies LLC

发明人： Gregory R Collins

IPC分类号： B01D67/00 ,  A61M1/16 ,  B01D61/02 ,  B01D69/02 ,  B01D69/10 ,  B01D69/14 ,  C02F1/44

CPC分类号： B01D67/0079 ,  A61M1/16 ,  B01D61/027 ,  B01D69/02 ,  B01D69/10 ,  B01D69/144 ,  C02F1/442 ,  B01D67/0088 ,  B01D2323/286 ,  B01D2323/42 ,  B01D2325/0233 ,  B01D2325/20 ,  C02F2303/04

摘要： The present invention is directed to asymmetric membranes and methods for making such membranes, wherein the membranes have a void volume and nanoparticles located in the void volume. The membranes have a variety of applications, including blood purification, water purification, water decontamination and bioprocessing.

公开(公告)号：US12084533B1

公开(公告)日：2024-09-10

申请号：US18581246

申请日：2024-02-19

申请人： KING FAISAL UNIVERSITY

发明人： Saad Shaaban ,  Manal Amin Hessien ,  Amr Negm ,  Tarek A. Yousef

IPC分类号： C08F289/00 ,  B01D67/00 ,  B01D71/10 ,  B01D71/82 ,  C02F1/44 ,  C02F101/30 ,  C08H8/00 ,  C08J5/18

CPC分类号： C08F289/00 ,  B01D67/0011 ,  B01D67/0013 ,  B01D71/10 ,  B01D71/82 ,  C02F1/44 ,  C08H8/00 ,  C08J5/18 ,  B01D2323/08 ,  B01D2323/42 ,  C02F2101/301 ,  C08J2351/08

摘要： A method of making a lignocellulose incorporating methacrylate functionality from date palm biomass can include extracting sieved date palm biomass at a first predetermined temperature (110° C.) to obtain an extracted date palm biomass; adding an acid to the extracted date palm biomass to obtain a mixture and stirring and refluxing the mixture at a second predetermined temperature (100° C.) to obtain a refluxed cellulose-hemicellulose-lignin residue; dissolving the refluxed cellulose-hemicellulose-lignin residue in a solvent to obtain a solution; adding triethylamine and methacrylic anhydride to the solution to obtain a reaction solution mixture and stirring while heating the reaction solution mixture to react the triethylamine and the methacrylic anhydride with the solution to obtain a reacted solution mixture; pouring the reacted solution mixture into an ice-cold solvent to obtain a solution mixture and separating cellulose-hemicellulose-lignin residue from the solution mixture via centrifuging; dissolving centrifuged cellulose-lignin residue in water to obtain the lignocellulose incorporating methacrylate functionality.

公开(公告)号：US20240181402A1

公开(公告)日：2024-06-06

申请号：US18512890

申请日：2023-11-17

申请人： Pukyong National University Industry-University Cooperation Foundation

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

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

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

摘要： 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：US11826710B2

公开(公告)日：2023-11-28

申请号：US17219428

申请日：2021-03-31

申请人： Global Life Sciences Solutions USA LLC

发明人： Douglas Albagli ,  William A Hennessy

IPC分类号： B01D67/00 ,  G03F7/00 ,  B01D69/02 ,  B01D71/64

CPC分类号： B01D69/02 ,  B01D67/0034 ,  B01D71/64 ,  G03F7/0015 ,  B01D2323/24 ,  B01D2323/42 ,  B01D2325/021

摘要： Porous liquid-filtering membranes having a repeatable distribution of pores of a small dimension are provided, as well as pillar templates that are used to produce such liquid filtering membranes. Also disclosed are methods of making and using the pillar templates to make porous liquid filtering membranes.

公开(公告)号：US11813577B2

公开(公告)日：2023-11-14

申请号：US17437427

申请日：2020-03-17

申请人： FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

发明人： Michael Paul

IPC分类号： B01D69/08 ,  B01D63/02

CPC分类号： B01D69/088 ,  B01D63/021 ,  B01D2323/08 ,  B01D2323/10 ,  B01D2323/42

摘要： The invention relates to an apparatus and a method for the manufacture of at least one hollow fiber membrane, wherein a spinning mass is extruded via a spinning unit to form a spinning thread and precipitated in a precipitation bath to form a hollow fiber membrane and the hollow fiber membrane is optionally rinsed in a rinsing bath, wherein furthermore the hollow fiber membrane is passed through at least one drying unit, wherein the drying unit comprises a pressure section which is constructed in such a way that a positive pressure compared with atmospheric pressure can be set in the pressure section, and at least part of the precipitating agent or rinsing agent contained in the at least one hollow fiber membrane (104) is separated from the at least one hollow fiber membrane.

公开(公告)号：US20190217253A1

公开(公告)日：2019-07-18

申请号：US16338108

申请日：2017-09-30

申请人： OXYMEM LIMITED

发明人： Eoin SYRON ,  Michael SEMMENS ,  Malcolm WHELAN ,  John GEANEY ,  Nigel COOMBES ,  Wayne BYRNE ,  Barry HEFFERNAN

IPC分类号： B01D69/08

CPC分类号： B01D69/084 ,  B01D63/02 ,  B01D63/021 ,  B01D65/08 ,  B01D67/0009 ,  B01D67/0013 ,  B01D67/0018 ,  B01D69/082 ,  B01D69/085 ,  B01D69/087 ,  B01D71/06 ,  B01D2313/025 ,  B01D2313/21 ,  B01D2315/05 ,  B01D2315/06 ,  B01D2323/42 ,  B01D2325/027 ,  B01D2325/06

摘要： A hollow fibre membrane having a coiled, a hemihelix, a helical or an undulated native form, in which the membrane can be stretched by up to 4-times its original length with no plastic deformation, and wherein the native form of the membrane is produced by the asymmetric flow of liquid polymer through an opening of a die or nozzle.

公开(公告)号：US20180154317A1

公开(公告)日：2018-06-07

申请号：US15831765

申请日：2017-12-05

申请人： IBIDEN CO., LTD.

发明人： Masatoshi Kunieda ,  Hirokazu Higashi

IPC分类号： B01D69/12 ,  B01D69/02 ,  B01D69/10

CPC分类号： B01D69/12 ,  B01D67/0062 ,  B01D69/02 ,  B01D69/10 ,  B01D69/148 ,  B01D71/40 ,  B01D71/46 ,  B01D71/48 ,  B01D71/64 ,  B01D71/70 ,  B01D2201/0407 ,  B01D2323/21 ,  B01D2323/42 ,  B01D2325/021 ,  B01D2325/04

摘要： A filter membrane for selectively separating a specific material from other materials in a processing medium includes a membrane including resin material and having openings formed such that the openings selectively separate a specific material from other materials in a processing medium. The membrane has a first surface and a second surface on the opposite side with respect to the first surface such that the first surface receives the processing medium supplied to the membrane, the openings are formed through the membrane such that each of the openings has an opening part extending from the second surface toward the first surface and an expansion part expanding a size of the opening part and extending from the opening part to the first surface, and the first surface of the membrane is divided into multiple regions.

公开(公告)号：US09950300B2

公开(公告)日：2018-04-24

申请号：US14421887

申请日：2013-08-14

申请人： UNITIKA LTD.

发明人： Yuki Hara ,  Takahiro Ono ,  Terumi Murata ,  Kuniko Inoue

IPC分类号： B01D71/56 ,  B01D69/08 ,  B01D69/02 ,  B01D67/00 ,  C02F1/44 ,  B01D61/14 ,  C02F1/00 ,  C02F103/04 ,  C02F103/34

CPC分类号： B01D71/56 ,  B01D61/14 ,  B01D67/0016 ,  B01D69/02 ,  B01D69/08 ,  B01D69/087 ,  B01D2323/12 ,  B01D2323/42 ,  B01D2325/20 ,  B01D2325/36 ,  C02F1/44 ,  C02F2103/04 ,  C02F2103/343 ,  C02F2103/346

摘要： [Problem] The purpose of the present invention is to provide a polyamide hollow fiber membrane having such properties that the transmission of fine particles through the membrane can be prevented effectively, the membrane has an excellent water transmissibility, the entire surface of the membrane has excellent hydrophilicity, and impurities such as metal elements are rarely eluted through the membrane.[Solution] A polyamide hollow fiber membrane produced by a TIPS method under specific production conditions has the following characteristic properties: (1) the contact angle of water on the surface of the membrane is 80° or less; (2) the external pressure water transmissibility of the membrane is 50 L/(m2·atm·h) or more; and (3) the 50 nm-particles blocking ratio of the membrane is 90% or more.

公开(公告)号：US09938388B2

公开(公告)日：2018-04-10

申请号：US15143071

申请日：2016-04-29

申请人： VITO NV (VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV)

发明人： Sabine Paulussen ,  Gabriella Da Ponte

IPC分类号： B01D65/08 ,  B01D71/34 ,  C08F259/08 ,  C08F261/06 ,  C08J7/18 ,  B05D3/14 ,  B29C59/14 ,  C08J7/12 ,  B01D67/00 ,  B01D71/68 ,  B01D71/36

CPC分类号： C08J7/18 ,  B01D65/08 ,  B01D67/009 ,  B01D67/0093 ,  B01D71/34 ,  B01D71/36 ,  B01D71/68 ,  B01D2323/02 ,  B01D2323/42 ,  B05D1/62 ,  B05D3/141 ,  B05D3/142 ,  B05D3/144 ,  B05D7/02 ,  B29C59/14 ,  B29K2995/0092 ,  C08F259/08 ,  C08F261/06 ,  C08J7/123 ,  C08J2327/16 ,  C08J2327/18 ,  C08J2329/10

摘要： A method of enhancing hydrophilicity of a hydrophobic polymer material includes pre-treating the hydrophobic polymer material. The pre-treating includes treating the hydrophobic polymer material with a first atmospheric pressure plasma discharge in a first atmosphere including carbon dioxide to obtain a pre-treated polymer material. The method includes treating the pre-treated polymer material with a second atmospheric pressure plasma discharge in a second atmosphere in which an aerosol of an amine is introduced; the amine includes at least one hydrocarbon substituent. A substrate is provided that includes a hydrophobic polymer material having a modified interface. The modified interface includes amine functional groups grafted on the hydrophobic polymer material, the modified interface having a surface energy, which, measured after immersion in water at 20° C. for 3 days, differs from a surface energy of the hydrophobic polymer material by 20 mN/m or less.

公开(公告)号：US09908086B2

公开(公告)日：2018-03-06

申请号：US14665854

申请日：2015-03-23

申请人： EMD Millipore Corporation

发明人： Gabriel Tkacik ,  Philip Goddard ,  Willem Kools ,  Nitin Satav

IPC分类号： B01D69/12 ,  B01D67/00 ,  B01D61/14 ,  B01D71/34 ,  B01D71/68 ,  C07K1/34

CPC分类号： B01D69/12 ,  B01D61/145 ,  B01D67/0013 ,  B01D67/0016 ,  B01D67/0018 ,  B01D71/34 ,  B01D71/68 ,  B01D2323/12 ,  B01D2323/42 ,  B01D2325/022 ,  C07K1/34

摘要： The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer.