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公开(公告)号：WO2021252074A1
公开(公告)日：2021-12-16
申请号：PCT/US2021/027633
申请日：2021-04-16
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY , KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
IPC分类号： B01D67/00 , B01D71/82 , B01J20/20 , B01J20/26 , B01J20/28 , C02F1/28 , B01D2323/04 , B01D2323/345 , B01D2323/38 , B01D2323/385 , B01D2325/021 , B01D2325/12 , B01D2325/20 , B01D2325/38 , B01D67/0079 , B01D67/0093 , B01D69/12 , B01D71/021 , B01D71/26 , B01D71/28 , B01D71/54 , B01J20/205 , B01J20/28033 , B01J20/3212 , B01J20/3219 , B01J20/324 , B01J20/327 , B01J20/3278 , B01J20/3289 , B01J20/3295 , B01J20/3297 , B82Y30/00 , C02F1/283 , C02F1/285 , C02F1/288 , C02F1/44 , C02F1/681 , C02F2101/32 , C02F2103/08 , C02F2103/365 , C02F2305/08
摘要： Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of porous matrix polymer include polyurethanes, polyethylenes, and polypropylenes. Membranes of the composite material may be enclosed within a fluid-permeable pouch to form a fluid treatment apparatus, such that by contacting the apparatus with a fluid mixture containing water and a hydrophobic component, the hydrophobic component absorbs selectively into the membrane. The apparatus may be removed from the fluid mixture and reused after the hydrophobic component is expelled from the membrane. The composite material may be prepared by grafting functionalized carbon nanotubes to a porous matrix polymer to form a polymer-nanotube composite, then polymerizing styrene onto the carbon nanotubes of the polymer-nanotube composite.
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2.发明申请
公开(公告)号：WO2021130641A1
公开(公告)日：2021-07-01
申请号：PCT/IB2020/062245
申请日：2020-12-18
IPC分类号： B01D67/00 , B01D69/02 , B01D71/68 , B01D2323/04 , B01D2323/34 , B01D2325/38 , B01D61/145 , B01D61/147 , B01D67/009 , B01D67/0093
摘要： The present disclosure relates to hydrophilic microporous membranes comprising a modified surface. In addition, the present disclosure relates to a process for producing such hydrophilic membranes by modification of microporous membranes with fluorinated organosilane compounds and electron beam irradiation.
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公开(公告)号：WO2023278853A1
公开(公告)日：2023-01-05
申请号：PCT/US2022/035979
申请日：2022-07-01
申请人： GRADIANT CORPORATION
发明人： LOKARE, Omkar , STOVER, Richard
IPC分类号： B01D61/02 , B01D61/08 , C02F1/44 , B01D2311/08 , B01D2311/12 , B01D2311/2512 , B01D2313/243 , B01D2317/022 , B01D2323/2181 , B01D61/025 , B01D61/026 , B01D67/0006 , B01D67/0093 , B01D71/56 , C02F1/441
摘要： A serial filtration system for liquid purification includes a preliminary-stage reverse-osmosis (RO) module and a first-stage, high-permeability, reverse-osmosis (HiRO) module. Both modules include (a) a chamber including an inlet, a retentate outlet, and a permeate outlet, and (b) at least one membrane separating the chamber into a retentate side on an upstream side of the membrane and a permeate side on a downstream side of the membrane. The membrane in the preliminary stage is an RO membrane, while the membrane in the first stage is an oxidized membrane. The first-stage inlet is in fluid communication with the preliminary-stage, retentate outlet; and the oxidized membrane in the first stage, comprises an oxidized polyamide active layer coated on a porous support, wherein the oxidized polyamide active layer has an atomic oxygen/nitrogen ratio of at least 1.5.
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公开(公告)号：WO2022002788A1
公开(公告)日：2022-01-06
申请号：PCT/EP2021/067494
申请日：2021-06-25
IPC分类号： B01D61/00 , B01D67/00 , B01D69/08 , B01D69/12 , B01D71/56 , B01D71/60 , B01D71/64 , B01D2323/36 , B01D61/002 , B01D67/0006 , B01D67/0009 , B01D67/0093 , B01D69/125
摘要： Disclosed herein is a process for preparing a hollow fiber comprising the steps of providing a dope solution comprising polyamide imide (PAI), providing an aqueous bore solution comprising polyethylene imine (PEI), extruding the dope solution in an cross-sectional annular shape and ejecting the bore solution in the center of the annular shape, allowing the PAI and the PEI to react, thereby forming an internal surface layer comprising the cross-linked reaction product, and forming a polyamide Thin Film Composite (TFC) layer by interfacial reaction of aqueous di- or triamine compound and organic di- or triacylhalide compound on the internal surface layer comprising the cross-linked reaction product.
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公开(公告)号：WO2021262873A1
公开(公告)日：2021-12-30
申请号：PCT/US2021/038725
申请日：2021-06-23
申请人： ENTEGRIS, INC.
IPC分类号： B01D71/56 , B01D69/10 , B01D69/12 , B01D67/00 , B01D65/10 , C02F1/44 , B01D2239/0478 , B01D2323/385 , B01D2325/14 , B01D2325/30 , B01D2325/36 , B01D61/145 , B01D67/0093 , B01D69/02 , B01D69/125 , B01D71/40 , C08G69/14 , C09D177/02
摘要： Provided are certain membranes useful in the filtration of liquids and removal of various contaminants therein. In certain aspects the membranes have as one component a polyamide such as Nylon 11 and/or Nylon 12. Also provided is methodology for manufacturing such membranes and their use in filtration and purification of liquids. Membranes of the disclosure thus prepared exhibit superior acid stability when compared to polyamide membranes prepared from Nylon 6 or Nylon 6,6.
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公开(公告)号：WO2021202913A1
公开(公告)日：2021-10-07
申请号：PCT/US2021/025438
申请日：2021-04-01
申请人： NANOPAREIL, LLC
IPC分类号： B01D67/00 , B01D69/02 , B01D71/10 , B01J20/28 , B01D2325/12 , B01D67/002 , B01D67/0093 , B01J20/24 , B01J20/28038 , B01J20/3219 , B01J20/3274 , B01J20/3293 , C07K1/22
摘要： The present disclosure provides surface functionalized affinity membranes. The surface functionalized affinity membranes can provide increased binding capacity through improved coupling chemistries, ligand densities, spacer arm types, and spacer arm lengths. Methods of preparing the surface functionalized affinity membranes and methods of using the surface functionalized affinity membranes to isolate targets of interest, including nucleic acid molecules and proteins, from a sample are also provided.
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