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公开(公告)号：US20240278183A1
公开(公告)日：2024-08-22
申请号：US18648332
申请日：2024-04-26
申请人： Matregenix, Inc.
发明人： Sherif Soliman , Feng Guo
CPC分类号： B01D69/02 , B01D67/00042 , B01D69/1214 , B01D69/125 , B01D71/381 , B01D71/401 , C02F1/001 , B01D2323/30 , B01D2323/39 , C02F2101/20
摘要： Electrospun poly(acrylic) acid (PAA)/poly(vinyl) alcohol PVA nanofibers and integrated filtration membranes generated therefrom are disclosed herein. The membranes are suitable for use in selectively removing heavy metals such as lead and cadmium from water. The surface of the nanofibers is preferably functionalized with one or more chelating agents. The membranes have a high removal efficiency and adsorption capacity with well-distributed high-density heavy metal adsorption sites with strong binding affinities for targeted heavy metals.
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公开(公告)号：US12012423B1
公开(公告)日：2024-06-18
申请号：US17957234
申请日：2022-09-30
CPC分类号： C07F1/08 , B01D53/58 , B01D53/62 , B01D67/0079 , B01D69/12 , B01D71/022 , B01D71/82 , B01D2257/406 , B01D2257/504 , B01D2257/93 , B01D2258/0283 , B01D2323/39
摘要： A composition having the structure of formula I:
[R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+ (I)
is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>x>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.-
公开(公告)号：US11839855B2
公开(公告)日：2023-12-12
申请号：US16620470
申请日：2018-06-11
发明人： Ui Young Jeong , In Yong Seo
CPC分类号： B01D61/145 , B01D63/08 , B01D67/0002 , B01D69/02 , B01D69/10 , B01D71/34 , C02F1/444 , B01D2323/39 , B01D2325/02 , B01D2325/04 , B01D2325/34
摘要： A filter medium is provided. According to one embodiment of the present invention, the filter medium is implemented by including: a porous second support and a nanofiber web which are sequentially stacked on each of an upper portion and a lower portion of a first support; and a channel through which a filtrate filtered in the nanofiber web flows in a direction of the first support, wherein the first support, the second support, and the nanofiber web satisfy predetermined conditions on a basis weight and a thickness of each layer. In a water treatment operation of the filter medium, the shape, structural deformation, and damage of the filter medium can be minimized, excellent filtration efficiency can be implemented, and a channel can be smoothly secured, thereby securing high flux. In addition, even at high pressure applied during backwashing, the filter medium has an extended use period due to excellent durability of the filter medium. Accordingly, the filter medium can be variously applied in various water treatment fields.
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公开(公告)号：US11814752B2
公开(公告)日：2023-11-14
申请号：US17519238
申请日：2021-11-04
申请人： CORNELL UNIVERSITY
发明人： Yong Lak Joo , Daehwan Cho , Alexander Naydich
IPC分类号： D01F6/18 , D01D5/00 , D04H1/728 , D01F1/10 , B01D67/00 , B01D69/14 , B01D71/42 , D04H3/009 , B01D39/08 , D01F6/14 , D01F9/08 , B01D71/02 , B01D71/38 , B82Y30/00
CPC分类号： D01F6/18 , B01D39/08 , B01D67/0079 , B01D69/148 , B01D71/42 , D01D5/003 , D01D5/0007 , D01D5/0023 , D01F1/10 , D01F6/14 , D01F9/08 , D04H1/728 , D04H3/009 , B01D71/024 , B01D71/38 , B01D2323/39 , B82Y30/00 , D01D5/0069 , D10B2321/06 , D10B2321/10 , D10B2505/04 , Y10T428/298 , Y10T428/2933
摘要： Described herein are nanofibers and methods for making nanofibers that include any one or more of (a) a non-homogeneous charge density; (b) a plurality of regions of high charge density; and/or (c) charged nanoparticles or chargeable nanoparticles. In one aspect, the present invention fulfills a need for filtration media that are capable of both high performance (e.g., removal of particle sizes between 0.1 and 0.5 μm) with a low pressure drop, however the invention is not limited in this regard.
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5.发明申请公开(公告)号：US20190193033A1
公开(公告)日：2019-06-27
申请号：US16329653
申请日：2016-08-31
发明人： Rajesh Sahadevan , Todd J. Menkhaus , Hao Fong
CPC分类号： B01D69/125 , B01D67/0079 , B01D69/10 , B01D69/12 , B01D69/148 , B01D71/56 , B01D2323/26 , B01D2323/30 , B01D2323/39 , B01D2323/40 , B01D2325/02
摘要： This invention relates thin film nanocomposites (TFNCs) and methods of preparing the same by molecular layer-by-layer assembly. The TFNCs comprise a porous nanofibrous support first layer coated with a mid-layer having an outer separating layer, wherein the out separating layer has one or more bilayers or trilayers. The TFNCs can be particularly suitable for use as filtration membranes for the separation of dissolved components from fluids such as ultrafiltration, nanofiltration, and reverse osmosis. Thus, embodiments of the invention also include filtration systems and methods of filtering.
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公开(公告)号：US10058822B2
公开(公告)日：2018-08-28
申请号：US15043489
申请日：2016-02-12
IPC分类号： B01D67/00 , B01D69/12 , B01D69/14 , B01D71/34 , B01D71/40 , B01D71/60 , C02F1/44 , D01F1/10 , B01D69/10 , C02F103/08 , B01D71/02
CPC分类号： B01D69/141 , B01D67/0006 , B01D67/0013 , B01D67/0079 , B01D69/10 , B01D69/12 , B01D69/125 , B01D69/148 , B01D71/022 , B01D71/34 , B01D71/40 , B01D71/60 , B01D2323/26 , B01D2323/30 , B01D2323/36 , B01D2323/39 , B01D2323/40 , B01D2325/42 , C02F1/44 , C02F1/441 , C02F1/444 , C02F2103/08 , D01F1/10
摘要： Described herein are filtration membranes and related, compositions, methods and systems and in particular filtration membranes with polymeric micro/nanoparticles embedded in a polymer matrix formed by a porous polymeric aggregate, a bicomposite membrane including a plurality of nanofibers and/or microfibers attached to a polymer matrix formed by a porous polymeric aggregate comprising polymeric nanoparticles, and related compositions, methods, and systems.
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公开(公告)号：US20180237967A1
公开(公告)日：2018-08-23
申请号：US15897189
申请日：2018-02-15
申请人： Sefar AG
CPC分类号： D04H1/728 , A41D13/1192 , A41D31/305 , B01D39/083 , B01D39/1623 , B01D69/127 , B01D2239/025 , B01D2239/0428 , B01D2239/0668 , B01D2323/39 , B01D2325/38 , D01D5/0069
摘要： The invention relates to a composite for a protective vent with at least one carrier layer and an electrospinning membrane, which is arranged on the at least one carrier layer, wherein the electrospinning membrane consists of superimposed fibers lying one above the other, forming a porous structure, whereby the porous structure is designed, whereby the carrier layer comprises a monofilament fabric, a plasma coating is applied both to the electrospinning membrane and to the monofilament fabric of the at least one carrier layer and a bonding is provided that connects the carrier layer and the membrane. Furthermore, the invention relates to an according method for producing the inventive protective vent.
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8.发明申请公开(公告)号：US20180236403A1
公开(公告)日：2018-08-23
申请号：US15752163
申请日：2016-08-16
发明人： Ui Young JEONG
CPC分类号： B01D61/027 , B01D61/145 , B01D63/081 , B01D63/14 , B01D67/0004 , B01D69/02 , B01D69/10 , B01D69/12 , B01D71/34 , B01D71/42 , B01D2323/39 , B01D2325/36 , C02F1/44 , C02F1/442 , C02F2305/08 , D04H1/43 , D04H1/4318 , D04H1/4374 , D04H1/4382 , D04H1/548 , D04H1/728
摘要： A nanofiber for a filter medium is provided that includes fiber-forming ingredients including polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) and an emulsifying agent for improving the miscibility of the fiber-forming ingredients. The nanofiber has excellent mechanical strength and chemical resistance and, at the same time, significantly increased hydrophilicity without a separate surface modification/treatment to/on the nanofiber. A filter medium comprising said nanofiber can exhibit improved flux and filtration efficiency and excellent physical properties in a water treatment process in which a pressure equal to or more than a predetermined level is applied and which requires the filter medium to have high mechanical strength and in a water treatment process which requires chemical resistance as the liquid being filtered is strongly acidic or alkaline. Further, since the nanofiber has significantly superior spinnability, the mass productivity of the filter medium is significantly improved, and the unit costs of production can be reduced.
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公开(公告)号：US20160362718A1
公开(公告)日：2016-12-15
申请号：US15185792
申请日：2016-06-17
发明人： PATRICK A. MACH , RAJ RAJAGOPAL , WENSHENG XIA , JINSHENG ZHOU , CHUNMEI GUO
CPC分类号： C12Q1/04 , B01D63/00 , B01D69/02 , B01D69/10 , B01D2323/39 , B01D2325/022 , B01D2325/12 , B01J20/267 , B01J20/28047 , B01J20/2805 , C12Q1/24 , C12Q1/689 , G01N33/68
摘要： A method of filtering a liquid sample that includes passing a sample comprising at least one biological organism through a filter membrane at a passive water volume flux of at least 10 L/m2·h·psi, wherein the filter membrane comprises a Bubble Point pore size of no more than 1.0 μm, thereby retaining at least one biological organism on the surface of the membrane; and detecting the at least one biological organism retained on the surface of the filter membrane.
摘要翻译： 一种过滤液体样品的方法，其包括使包含至少一种生物体的样品通过过滤膜以至少10L / m2·h·psi的被动水体积通量通过，其中所述滤膜包括泡点孔径 不超过1.0μm，从而在膜的表面上保留至少一种生物有机体; 以及检测保留在所述过滤膜表面上的所述至少一个生物体。
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10.发明授权Filtration method using polyimide nanoweb with amidized surface and apparatus therefor 有权使用具有酰胺化表面的聚酰亚胺纳米网的过滤方法及其设备公开(公告)号：US09475009B2
公开(公告)日：2016-10-25
申请号：US12963962
申请日：2010-12-09
申请人： T. Joseph Dennes , Stephen Mazur
发明人： T. Joseph Dennes , Stephen Mazur
IPC分类号： B01D71/64 , B01D67/00 , B01D69/00 , B01D69/06 , D04H1/4326 , D04H1/4342 , H01M2/16 , H01M10/052
CPC分类号： B01D67/0093 , B01D69/00 , B01D69/06 , B01D71/64 , B01D2323/36 , B01D2323/39 , B01D2323/42 , D04H1/4326 , D04H1/4342 , H01M2/1653 , H01M10/052
摘要： The present invention is directed to the preparation and use of aromatic polyimide nanowebs with amide-modified surfaces. Uses include as a filtration medium, and as a separator in batteries, particularly lithium-ion batteries. The invention is also directed to a method comprising the aromatic polyimide nanoweb with amide-modified surface. The invention is further directed to a multi-layer article comprising the aromatic polyimide nanoweb with amide-modified surface, and to an electrochemical cell comprising the multi-layer article.
摘要翻译： 本发明涉及具有酰胺改性表面的芳族聚酰亚胺纳米纤维的制备和用途。 用途包括作为过滤介质，以及作为电池中的隔膜，特别是锂离子电池。 本发明还涉及包含具有酰胺改性表面的芳族聚酰亚胺纳米纤维网的方法。 本发明还涉及包含芳族聚酰亚胺纳米纤维素与酰胺改性表面的多层制品，以及包含多层制品的电化学电池。
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