Metal Containing Patents (Class 210/500.25)
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Patent number: 11939266Abstract: Disclosed herein is a dual density disc comprising a dense outer tube comprising alumina having a purity of greater than 99%; and a porous core comprising alumina of a lower density than a density of the dense outer tube; wherein the porous core has an alumina purity of greater than 99%. Disclosed herein too is method comprising disposing in a dense outer tube a slurry comprising alumina powder and a pore former; heating the dense outer tube with the slurry disposed therein to a temperature of 300 to 600° C. to activate the pore former; creating a porous core in the dense outer tube; and sintering the dense outer tube with the porous core at a temperature of 800 to 2000° C. in one or more stages.Type: GrantFiled: November 24, 2020Date of Patent: March 26, 2024Assignee: MOTT CORPORATIONInventors: Jeffery Caswell, Piyush Kar, Alex Hill, Alfred M. Romano, Aravind Mohanram
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Patent number: 11931739Abstract: Provided are methods, devices, and kits for the isolation and detection of one or more analytes of interest from a biological sample using microslit filter membranes. In various examples, the methods use capture particles and binding agents for specific recognition of one or more analytes of interest.Type: GrantFiled: August 16, 2018Date of Patent: March 19, 2024Assignees: SiMPore Inc., University of RochesterInventors: James A. Roussie, James L. McGrath, Richard E. Waugh, Kilean S. Lucas, Joshua J. Miller
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Patent number: 11931698Abstract: A thin film composite gas separation membrane comprising a polyether block amide copolymer coating layer and a nanoporous asymmetric support membrane with nanopores on the skin layer surface of the support membrane and gelatin polymers inside the nanopores on the skin layer surface of the support membrane. A method for making the thin film composite gas separation membrane is provided as well as the use of the membrane for a variety of separations such as separations of hydrogen sulfide and carbon dioxide from natural gas, carbon dioxide removal from flue gas, fuel gas conditioning, hydrogen/methane, polar molecules, and ammonia mixtures with methane, nitrogen or hydrogen and other light gases separations, but also for natural gas liquids recovery and hydrogen sulfide and carbon dioxide removal from natural gas in a single step.Type: GrantFiled: September 23, 2022Date of Patent: March 19, 2024Assignee: UOP LLCInventors: Xueliang Dong, Chunqing Liu, Howie Tran
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Patent number: 11834380Abstract: A preparation method of an alumina ceramic valve core ceramic chip and a product thereof. The alumina ceramic valve core ceramic chip is obtained by the steps of mixing alumina, a sintering aid and a toughening agent according to a raw material ratio, ball-milling, drying, cold isostatic pressing, sintering and the like. The alumina ceramic valve core ceramic chip is prepared by adopting nano alumina and zirconium oxide as the sintering aid, so that the material has excellent bending strength, fracture toughness, hardness and low wear rate, the bending strength can reach 357.8-360.06 MPa, the fracture toughness is 4.32-4.56 MPa1/2, the Vickers hardness is 1592.7-1614.8 MPa, the wear rate is 0.04-0.09%, and the alumina ceramic valve core ceramic chip is an ideal material for preparing a faucet valve core.Type: GrantFiled: July 29, 2021Date of Patent: December 5, 2023Assignee: Xinxing Electronic Ceramics Co., LtdInventors: Jianping Cao, Peifu Cao, Jianhui Cao, Ping Liu
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Patent number: 11832503Abstract: A display device includes a base, a light emitting device on a first surface of the base, and a plate-like inorganic layer on a second surface of the base, the plate-like inorganic layer including a first plate-like inorganic particle with a first size and a second plate-like inorganic particle with a second size different from the first size.Type: GrantFiled: January 15, 2021Date of Patent: November 28, 2023Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Hee Kyun Shin, Seung Jun Moon, Byung Hoon Kang, Min Woo Lee, Woo Jin Cho
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Patent number: 11772053Abstract: A carbon molecular sieve (CMS) membrane having improved separation characteristics for separating olefins from their corresponding paraffins is comprised of carbon with at most trace amounts of sulfur and a group 13 metal. The CMS membrane may be made by pyrolyzing a precursor polymer devoid of sulfur in which the precursor polymer has had a group 13 metal incorporated into it, wherein the metal is in a reduced state. The pyrolyzing for the precursor having the group 13 metal incorporated into it is performed in a nonoxidizing atmosphere and at a heating rate and temperature such that the metal in a reduced state (e.g., covalently bonded to carbon or nitrogen or in the metal state).Type: GrantFiled: October 27, 2022Date of Patent: October 3, 2023Assignees: Dow Global Technologies LLC, Georgia Tech Research CorporationInventors: Yu-Han Chu, William J. Koros, Liren Xu, Mark K. Brayden, Marcos V. Martinez
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Patent number: 11701608Abstract: A filter element (100) that is to be mounted in a housing (102) has at least one substantially hollow cylindrical filter bellows (10, 20) designed to separate liquid from aerosol, and two cover elements (30, 40) designed to cover axial end regions (12, 14, 22, 24) of the filter bellows (10, 20). The axial end portions (12, 14, 22, 24) of the at least one filter bellows (10, 20) are pressed against the cover element (30, 40) by an axial compressing force. The at least one filter bellows (10, 20) is secured in the axial direction, and one respective sealing zone (16, 18, 26, 28) is formed between each filter (10, 20) and each cover element (30, 40).Type: GrantFiled: June 26, 2020Date of Patent: July 18, 2023Assignee: MANN+HUMMEL GmbHInventors: Andreas Panni, Klemens Dworatzek, Janine Schmelzle, Frank Vogt, Goekhan Evcuemen
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Patent number: 11596905Abstract: Disclosed are a heterogeneous zeolite membrane and a method of preparing the same, and more particularly a heterogeneous zeolite membrane that has CHA and DDR zeolite structures by growing seed particles into a crystal structure different from that of the zeolite membrane and can thus separate CO2/N2 and CO2/CH4 even under wet conditions, a method of preparing the same, and a method of capturing and removing carbon dioxide using the membrane.Type: GrantFiled: September 1, 2022Date of Patent: March 7, 2023Assignee: Korea University Research and Business FoundationInventors: Jungkyu Choi, Kwan Young Lee, Yang-Hwan Jeong
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Patent number: 11492578Abstract: The present disclosure provides a membrane separation method of a cell suspension which can appropriately separate cells from debris, and a cell culture device. That is, membrane separation processing of the cell suspension is performed using a filtration membrane which includes an inlet-side opening formed on one surface and an outlet-side opening, which is formed on the other surface and communicates with the inlet-side opening, and in which the inlet-side opening and the outlet-side opening are disposed at positions deviated in a direction parallel to the surfaces of the membrane.Type: GrantFiled: December 13, 2018Date of Patent: November 8, 2022Assignee: FUJIFILM CORPORATIONInventors: Hideaki Kagawa, Yoichi Nagai, Shinichi Nakai, Souichi Kohashi, Toshiki Takei
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Patent number: 11474021Abstract: Disclosed is a system for measuring mass transfer in a membrane and solutions. The system includes: a membrane module 10 including a feed solution reservoir 11 accommodating a feed solution f, a draw solution reservoir 13 accommodating a draw solution d whose osmotic concentration is higher than that of the feed solution f, and a holder 15 supporting a semipermeable membrane m arranged between the feed solution reservoir 11 and the draw solution reservoir 13 and whose performance is to be measured; a feed solution storage tank 20 storing the feed solution f; and a feed solution supply pump 30 supplying the feed solution f from the feed solution storage tank 20 to the feed solution reservoir 11 at a fixed flow rate corresponding to a water flux WF across the membrane m such that the water flux WF is maintained constant.Type: GrantFiled: August 3, 2020Date of Patent: October 18, 2022Assignee: Korea University Research and Business FoundationInventors: Dae Ryook Yang, Yoon Hyuk Jang, Kiho Park, Ji Woong Chang
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Patent number: 11306416Abstract: A functional regenerated cellulose fiber includes a graphene structure and non-carbon non-oxygen elements. The non-carbon non-oxygen elements includes elements of Fe, Si, and Al. The elements of Fe, Si, and Al account for 0.018 wt % to 0.8 wt % of the regenerated cellulose fiber.Type: GrantFiled: November 14, 2016Date of Patent: April 19, 2022Assignee: JINAN SHENGQUAN GROUP SHARE HOLDING CO., LTD.Inventors: Yilin Tang, Jinzhu Zhang, Shuangcheng Wang, Ripeng Xu, Ding Liu
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Patent number: 11247266Abstract: [Object] There is provided a porous sintered body has a uniform porosity, a high level of freedom in body formation which allows formation into varieties shapes and various levels of porosity, and a very large surface area. [Solution] The porous sintered body includes: hollow cores which follow a vanished shape of an interlaced or otherwise structured fibriform vanisher material; sintered walls 226 which extend longitudinally of the cores and obtained by sintering a first sintering powder held around the cores; and voids formed between the sintered walls. The cores and the voids communicate with each other via absent regions formed in the sintered walls. The sintered walls have surfaces formed with a sintered microparticulate layer 232 made from a material containing a second sintering powder which has a smaller diameter than the first sintering powder, and has predetermined pores 231.Type: GrantFiled: March 5, 2014Date of Patent: February 15, 2022Assignee: TAISEI KOGYO CO., LTD.Inventors: Shigeo Tanaka, Yasuhiro Kanoko
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Patent number: 11097226Abstract: Systems, devices and methods for molecular separation including a molecular separation device comprising at least a polycrystalline metal-organic framework (MOF) and a nanocrystalline, zeolite MFI, wherein the MOF forms a polycrystalline membrane with zeolite MFI nanoparticles dispersed therein, and the MOF membrane matrix contacting and surrounding the zeolite MFI nanoparticles form a permselective nanoporous structure.Type: GrantFiled: August 28, 2017Date of Patent: August 24, 2021Assignees: Phillips 66 Company, Georgia Tech Research CorporationInventors: Sankar Nair, Christopher W. Jones, Fereshteh Rashidi, Ali Asghar Rownaghi
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Patent number: 10850239Abstract: A filter medium is provided. A filter medium according to an embodiment of the present invention comprises: a fiber web layer of a three-dimensional network structure including nanofiber; and a hydrophilic coating layer which covers at least a part of the outer surface of the nanofiber. According to this, a flow rate can be remarkably increased due to the improved hydrophilicity of the filter medium. Also, as the improved hydrophilicity is maintained for a long period of time, the lifespan can be remarkably prolonged. Furthermore, since the modification of a porous structure of the filter medium is minimized during the process of hydrophilization so that the initially designed physical properties of the filter medium can be exhibited in its entirety, the filter medium having chemical resistance, excellent water permeability and durability can be variously applied in the water treatment field.Type: GrantFiled: June 1, 2017Date of Patent: December 1, 2020Assignee: AMOGREENTECH CO., LTD.Inventors: Ui Young Jeong, In Yong Seo
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Composite containing carbon nanostructure, high molecular material using same and preparation method
Patent number: 10836640Abstract: The present invention relates to a composite having a carbon nanostructure, comprising graphene, amorphous carbon and a non-carbon non-oxygen element, wherein the non-carbon non-oxygen element is in an amount of 0.5 wt %-6 wt % of the composite. The present invention discloses controlling the content of the non-carbon non-oxygen element in the composite to obtain excellent far-infrared effect and antibacterial and bacteriostatic effects, wherein the normal emissivity in the far-infrared performance reaches 0.85 or more, and the antibacterial rate reaches 95% or more. The composite having a carbon nanostructure of the present invention is applied to macromolecular materials to modify macromolecular materials under the circumstance that the addition amount is relatively low. The composite having a carbon nanostructure can achieve notable far-infrared performance and antibacterial and bactericidal performances without any pre-modification and activation treatment.Type: GrantFiled: September 22, 2016Date of Patent: November 17, 2020Assignee: JINAN SHENGQUAN GROUP HOLDING CO. LTD.Inventors: Yilin Tang, Jinzhu Zhang, Yingfu Zheng, Xiaomin Liu, Ding Liu -
Patent number: 10833308Abstract: A composite membrane including ion conductive inorganic particles; and a polymer layer, wherein the ion conductive inorganic particles penetrate the polymer layer. Also, a preparation method thereof, and a lithium-air battery including the composite membrane.Type: GrantFiled: January 22, 2018Date of Patent: November 10, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-sung Choi, Dong-min Im
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Patent number: 10811656Abstract: A composite membrane including ion conductive inorganic particles; and a polymer layer, wherein the ion conductive inorganic particles penetrate the polymer layer. Also, a preparation method thereof, and a lithium-air battery including the composite membrane.Type: GrantFiled: January 22, 2018Date of Patent: October 20, 2020Assignee: SAMSUNG ELECTRONICS CO; LTD.Inventors: Won-sung Choi, Dong-min Im
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Patent number: 10722945Abstract: A piece of flexible porous metal foil is a sheet made of porous metal material using solid solution alloy, face-centered cubic metal simple substance or body-centered cubic metal simple substance as matrix phase. The thickness of the sheet is 5 to 200 micrometers, the average aperture thereof is 0.05 to 100 micrometers, the porosity thereof is 15-70%, and the sheet is made by sintering a homogeneous film. The preparation method for the flexible porous metal foil comprises: (1) preparing thick turbid liquid with raw material powder forming the metal porous material by using dispersing agent and binding agent; (2) injecting the turbid liquid into a mold cavity of a film manufacturing fixture, and drying the turbid liquid to form a piece of homogeneous film; (3) putting the film into a sintering manufacturing fixture matching with the film in shape, then sintering the film, and taking the film out after sintering and obtaining the flexible porous metal foil.Type: GrantFiled: October 31, 2015Date of Patent: July 28, 2020Assignee: Intermet Technologies Chengdu Co., Ltd.Inventors: Lin Gao, Tao Wang, Tao Wang, Bo Li
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Patent number: 10525398Abstract: Air filters formed from mats of protein-containing nanowires are provided. The nanowires are formed into a mat with pores that allow air to pass through while physically filtering particulate matter. The protein in the protein-containing nanowires also serves to chemically filter polluted air passed through the filter. Specifically, chemical functional groups from the many amino acids that comprise the protein of the protein-containing nanowire react with certain chemical pollutants (e.g., carbon monoxide and formaldehyde) in order to capture or otherwise neutralize the pollutant. Accordingly, the single nanofiber mat performs two filtering functions. Methods of filtering air using the provided air filters are also disclosed, as well as methods for making the air filters from protein-containing nanofibers.Type: GrantFiled: March 29, 2018Date of Patent: January 7, 2020Assignee: Washington State UniversityInventors: Wei-hong Zhong, Hamid Souzandeh, Yu Wang
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Patent number: 10450192Abstract: Disclosed is a process for the catalytic thermal decomposition of ammonia into hydrogen and nitrogen by contacting ammonia at a temperature of at least 500° C. with a porous ceramic layer which comprises nickel. Also disclosed is a reactor for carrying out the process.Type: GrantFiled: July 22, 2016Date of Patent: October 22, 2019Assignee: Gencell Ltd.Inventors: Gennadi Finkelshtain, Michael Lerner, Ziya Ramizovich Karichev, Leonid Titelman
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Patent number: 10279291Abstract: Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media.Type: GrantFiled: August 31, 2015Date of Patent: May 7, 2019Assignee: Hollingsworth & Vose CompanyInventors: Máté Nagy, Siqiang Zhu
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Patent number: 10259723Abstract: Stabilized surfactant-based membranes and methods of manufacture thereof. Membranes comprising a stabilized surfactant mesostructure on a porous support may be used for various separations, including reverse osmosis and forward osmosis. The membranes are stabilized after evaporation of solvents; in some embodiments no removal of the surfactant is required. The surfactant solution may or may not comprise a hydrophilic compound such as an acid or base. The surface of the porous support is preferably modified prior to formation of the stabilized surfactant mesostructure. The membrane is sufficiently stable to be utilized in commercial separations devices such as spiral wound modules. Also a stabilized surfactant mesostructure coating for a porous material and filters made therefrom. The coating can simultaneously improve both the permeability and the filtration characteristics of the porous material.Type: GrantFiled: November 23, 2012Date of Patent: April 16, 2019Assignee: ZNANO LLCInventors: Adrian Brozell, Arian Abed-Amoli
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Patent number: 10099072Abstract: Disclosed are adsorbent materials that comprise a porous material having a continuous silica phase coated with a carbon layer, and a water-insoluble precipitate comprising a metal cation and an anion disposed substantially evenly throughout the adsorbent material. In some examples, the plurality of pores can have an average characteristic dimension of from 0.1 ? to 100 ?. The water-insoluble precipitate can be formed in the plurality of pores of the porous material by contacting the porous material with a first aqueous solution comprising a metal cation; and contacting the porous material with a second aqueous solution comprising an anion; wherein the metal cation and the anion combine to form the water-insoluble precipitate in the plurality of pores of the porous material, thereby forming the adsorbent material.Type: GrantFiled: December 14, 2016Date of Patent: October 16, 2018Assignee: Vanderbilt UniversityInventors: Martin Douglas LeVan, Jr., Dushyant Barpaga
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Patent number: 10039999Abstract: A process for separating ethanol from a mixture including ethanol and water comprises contacting the mixture with a sorbent or membrane including one or more zeolites having a high adsorption selectivity toward ethanol over water, wherein at least a fraction of the ethanol from the mixture is adsorbed by the sorbent or membrane and an unadsorbed portion of the mixture forms a raffinate having a lower concentration of ethanol than the mixture. The process further includes releasing adsorbed ethanol from the sorbent or membrane as a retentate or a permeant to produce an ethanol extract having a higher concentration of ethanol than the mixture.Type: GrantFiled: July 22, 2015Date of Patent: August 7, 2018Inventors: Joern Ilja Siepmann, Peng Bai, Michael Tsapatsis
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Patent number: 9925500Abstract: A method for making a composite polyamide membrane including a porous support and a thin film polyamide layer including the steps of applying a polyfunctional amine monomer and a combination amine-reactive compounds to a surface of the porous support and reacting the constituents to form a thin film polyamide layer, wherein the amine-reactive compounds include: i) a polyfunctional amine-reactive monomer including two to three amine-reactive moieties selected from acyl halide, sulfonyl halide and anhydride, ii) a polyfunctional amine-reactive monomer including at least four amine-reactive moieties selected from acyl halide, sulfonyl halide and anhydride, and iii) an acid compound including at least on carboxylic acid moiety or salt thereof and at least one amine-reactive moiety selected from acyl halide and sulfonyl halide.Type: GrantFiled: July 3, 2013Date of Patent: March 27, 2018Assignee: Dow Global Technologies LLCInventors: Mou Paul, Tina L. Arrowood, Robert C. Cieslinski, Steven D. Jons, Steven Rosenberg, Abhishek Roy, Ian A. Tomlinson
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Patent number: 9911957Abstract: A composite membrane including ion conductive inorganic particles; and a polymer layer, wherein the ion conductive inorganic particles penetrate the polymer layer. Also, a preparation method thereof, and a lithium-air battery including the composite membrane.Type: GrantFiled: June 5, 2014Date of Patent: March 6, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-sung Choi, Dong-min Im
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Patent number: 9403128Abstract: A device according to one embodiment includes a porous membrane having a surface charge and pore configuration characterized by a double layer overlap effect being present in pores of the membrane, where the porous membrane includes functional groups that preferentially interact with either cations or anions. A device according to another embodiment includes a porous membrane having a surface charge in pores thereof sufficient to impart anion or cation selectivity in the pores. Additional devices, systems and methods are also presented.Type: GrantFiled: February 20, 2014Date of Patent: August 2, 2016Assignee: Lawrence Livermore National Security, LLCInventors: Kevin C. O'Brien, Jeffery J. Haslam, William L. Bourcier, William Clary Floyd, III
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Patent number: 9309164Abstract: The present invention provides a method for purifying organic chemical-containing contaminated substances by which various organic chemicals (contaminants) can be readily and sufficiently decomposed in a short time, the method comprising the steps of adding a metal salt and a transition metal ionic compound to water or soil that contains organic chemicals, decomposing the organic chemicals by irradiating with light, and separating/collecting the detoxified organic chemicals.Type: GrantFiled: December 25, 2006Date of Patent: April 12, 2016Assignees: OSAKA UNIVERSITY, ESRI CO. LTD.Inventors: Hiroyasu Nagase, Kazuhisa Miyamoto, Kazumasa Hirata, Hiroshi Saito
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Publication number: 20150129489Abstract: The invention provides an organic-inorganic porous membrane which includes metal organic silica nano-particles impregnated in a polymer. The polymer includes a property of generating porous membrane using a phase inversion technique. The invention also provides a method for preparing the organic-inorganic porous membrane.Type: ApplicationFiled: November 13, 2013Publication date: May 14, 2015Applicant: King Abdul Aziz City for Science and Technology (KACST)Inventors: Nezar Hassan Mohamed Khdary, Mamdouh Abdelsalam
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Patent number: 9022228Abstract: A domestic appliance filter for use in a laundry treatment device includes a basic filter material with a hydrophobic coating for filtering out matter from a process water duct or a process air duct. The basic filter material includes a material which is resistant to temperatures of 160° C. or more and the hydrophobic coating on the basic filter material effects a surface energy of less than 35 mN/m.Type: GrantFiled: December 1, 2009Date of Patent: May 5, 2015Assignee: BSH Bosch und Siemens Hausgeräte GmbHInventor: Klaus Grunert
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Publication number: 20150101986Abstract: Disclosed are mixed matrix polymeric membranes comprising a plurality of metal-organic frameworks (MOFs), or in some aspects a zeolitic imidazolate frameworks (ZIFs), and a polymeric matrix, wherein the plurality of MOFs are attached to the polymeric matrix through covalent or hydrogen bonds or Van der Waals interaction.Type: ApplicationFiled: October 7, 2014Publication date: April 16, 2015Inventors: Ihab Nizar ODEH, Yunyang LIU
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Publication number: 20150096935Abstract: Membranes including functionalized carbon nanotubes, nanodiamonds and/or graphene oxide immobilized in or on the membranes are disclosed. The membranes including the immobilized nanocarbons increase interactions with water vapor to improve desalination efficiency in membrane distillation. The membranes may be deployed in all modes of membrane distillation such as air gap membrane distillation, direct contact membrane distillation, vacuum membrane distillation and other separations.Type: ApplicationFiled: October 6, 2014Publication date: April 9, 2015Inventors: Somenath Mitra, Sagar Roy, Madhulina Bhadra
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Patent number: 8999168Abstract: A system and method for the extraction of americium from radioactive waste solutions. The method includes the transfer of highly oxidized americium from an acidic aqueous feed solution through an immobilized liquid membrane to an organic receiving solvent, for example tributyl phosphate. The immobilized liquid membrane includes porous support and separating layers loaded with tributyl phosphate. The extracted solution is subsequently stripped of americium and recycled at the immobilized liquid membrane as neat tributyl phosphate for the continuous extraction of americium. The sequestered americium can be used as a nuclear fuel, a nuclear fuel component or a radiation source, and the remaining constituent elements in the aqueous feed solution can be stored in glassified waste forms substantially free of americium.Type: GrantFiled: October 28, 2011Date of Patent: April 7, 2015Assignee: UT-Battelle, LLCInventors: Ramesh R. Bhave, Melanie M. DeBusk, Guillermo D. DelCul, Laetitia H. Delmau, Chaitanya K. Narula
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Patent number: 8980096Abstract: The present invention relates to a method for the modification of metal hydroxide and/or metal oxide surfaces of an inorganic matrix with an organometallic reagent for obtaining an organic functionalized matrix suitable for filtration processes. The method involves the direct covalent binding of organic functional groups by allowing a pre-treated matrix to react with organometallic reagents in the present of a suitable solvent. The present invention further relates to an organic functionalized matrix obtainable or obtained by carrying out a method according to the invention. The invention also provides various uses of a surface-modified matrices as described herein in various industrial applications, including for instance in filtration and/or adsorption and/or separation processes, or as support, e.g. for catalyst systems or for enzyme systems.Type: GrantFiled: March 19, 2010Date of Patent: March 17, 2015Assignees: Vito NV, Universiteit AntwerpenInventors: Anita Buekenhoudt, Kenny Wyns, Vera Meynen, Bert Maes, Pegie Cool
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Publication number: 20150068978Abstract: The disclosure is directed to an intermediate filtering membrane comprising: a filtering membrane having a charged or polar surface; and a transiently coupled charged compound, wherein the charged compound has an opposite charge to the membrane charge. Likewise, provided herein are methods and kits utilizing the intermediate membrane for various filtering membranes operations.Type: ApplicationFiled: March 14, 2013Publication date: March 12, 2015Inventors: Gilad Lando, Dikla Zadaka-Amir, Andrew Norman Shipway, Steve Daren
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Publication number: 20150068972Abstract: The nanocomposite membrane includes a composite of carbon nanotubes coated or chemically bonded with metal oxide nanoparticles. This composite is embedded within a polymeric matrix via interfacial polymerization on a polysulfone support. The metal oxide particles are selected to exhibit catalytic activity when filtering pollutants from water in a water treatment system, or for separating a gas from a liquid, or for selectively separating particles or ions from solution for reverse osmosis (e.g., for desalination systems), or other filtration requirements. A method of fabricating the nanocomposite membrane is also included herein.Type: ApplicationFiled: November 13, 2014Publication date: March 12, 2015Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventor: TAWFIK ABDO SALEH AWADH
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Patent number: 8968965Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 10 to 70 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; and (v) non-curable salt; wherein the molar ratio of (i):(ii) is >0.10. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: March 3, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Harro Antheunis, Jacko Hessing, Bastiaan Van Berchum
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Patent number: 8968964Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 10 to 70 wt % solvent; (iv) 0 to 10 wt % of free radical initiator; and (v) lithium and/or calcium salt. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: March 3, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Harro Antheunis, Jacko Hessing, Bastiaan Van Berchum
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Patent number: 8945390Abstract: A carbon membrane formed by carbonizing a phenol resin having at least one kind of atomic groups among a methylene bond, a dimethylene ether bond, and a methylol group, wherein the total mole content of the atomic groups is 100 to 180% with respect to the phenolic nuclei. A pervaporation separation method using the carbon membrane is also disclosed.Type: GrantFiled: September 17, 2012Date of Patent: February 3, 2015Assignee: NGK Insulators, Ltd.Inventors: Akimasa Ichikawa, Kenji Suzuki, Naoto Kinoshita, Yoshinori Isoda, Takafumi Kimata
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Patent number: 8940173Abstract: Provided herein composition and methods for nanoporous membranes comprising single walled, double walled, or multi-walled carbon nanotubes embedded in a matrix material. Average pore size of the carbon nanotube can be 6 nm or less. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.Type: GrantFiled: May 29, 2009Date of Patent: January 27, 2015Assignee: Lawrence Livermore National Security, LLCInventors: Olgica Bakajin, Aleksandr Noy, Francesco Fornasiero, Hyung Gyu Park, Jason K. Holt, Sangil Kim
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Patent number: 8939293Abstract: Composite membranes that are adapted for separation, purification, filtration, analysis, reaction and sensing. The composite membranes can include a porous support structure having elongate pore channels extending through the support structure. The composite membrane also includes an active layer comprising an active layer material, where the active layer material is completely disposed within the pore channels between the surfaces of the support structure. The active layer is intimately integrated within the support structure, thus enabling great robustness, reliability, resistance to mechanical stress and thermal cycling, and high selectivity. Methods for the fabrication of composite membranes are also provided.Type: GrantFiled: February 29, 2012Date of Patent: January 27, 2015Assignee: Synkera Technologies, Inc.Inventors: Dmitri Routkevitch, Oleg G. Polyakov
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Publication number: 20140360938Abstract: A zeolite membrane composite for use in separation of a highly-permeative component through permeation from a vapor mixture or a liquid mixture comprising multiple components, the zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided thereon, wherein the zeolite membrane contains zeolite of a CHA-type aluminosilicate, and in a X-ray diffraction pattern obtained through irradiation to the zeolite membrane surface with X-ray, a peak intensity at around 2?=17.9° has a value of less than 0.5 times a peak intensity at around 2?=20.8° and a peak intensity at around 2?=9.6° has a value of 2.0 times or more and less than 4.0 times a peak intensity at around 2?=20.8°.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Mikio Hayashi, Miki Yamada, Takahiko Takewaki
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Publication number: 20140360939Abstract: A porous support-zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided on, wherein the zeolite membrane contains a zeolite having a microporous structure of 8-membered oxygen ring or less, and a molar ratio of SiO2/Al2O3 in the zeolite membrane surface is larger by at least 20 than a molar ratio of SiO2/Al2O3 in the zeolite membrane itself, or a water adsorption of the porous support-zeolite membrane composite at a relative pressure of 0.8, as determined from a water vapor adsorption isotherm of the porous support-zeolite membrane composite, is at least 82% of a water adsorption of the porous support-zeolite membrane composite under the same condition as above after one-week immersion of the porous support-zeolite membrane composite in an aqueous 90 mass % acetic acid solution at room temperature.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: MIKI YAMADA, Takahiko Takewaki, Mikio Hayashi, Naoko Fujita, Hidekazu Miyagi
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Publication number: 20140353238Abstract: The invention provides a method of preparing a filter medium by thermally bonding silver-coated spunbonded nonwoven fabrics to a dirt-retaining membrane, a chemical-retaining membrane, a pathogen-retaining membrane, or a combination thereof. The invention also relates to the use of one or more silver-coated spunbonded nonwoven fabric layers as a component of a microorganism-killing membrane in filter media for a fluid filtration system. The filter media of the invention offers efficient disinfection effects, maintaining a low pressure drop and a high flow rate when in use. Further, the filter media is adhesive free and contains at least one thermal binding layer made of spunbonded nonwoven polymeric fabrics. The invention also features a water-purification cartridge and the use thereof in a potable water system.Type: ApplicationFiled: May 31, 2013Publication date: December 4, 2014Inventor: Jin Hu
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Publication number: 20140339148Abstract: The invention provides a novel method of preparing a filter media by thermally bonding silver-coated nanofiber fabrics to a dirt-retaining membrane, a chemical-retaining membrane, a pathogen-retaining membrane, or a combination thereof. The invention also relates to the use of silver-coated nanofiber fabric layer as a component of a microorganism-killing membrane in filter media for a liquid or air filtration system. The filter media of the invention offers efficient disinfection effects, maintaining a low pressure drop and a high flow rate when in use. Further, the filter media is adhesive-layer free and contains at least one thermal binding layer made of spunbonded nonwoven polymeric fabrics. The invention also features a water-purification cartridge and a portable water system thereof.Type: ApplicationFiled: May 17, 2013Publication date: November 20, 2014Applicant: GOODRICH CORPORATIONInventor: Jin Hu
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Patent number: 8887926Abstract: Provided is a carbon nanostructure-metal composite nanoporous film in which a carbon nanostructure-metal composite is coated on one surface or both surfaces of a membrane support having micro- or nano-sized pores. A method for manufacturing a carbon nanostructure-metal composite nanoporous film, includes: dispersing a carbon nanostructure-metal composite in a solvent at the presence of a surfactant and coating the carbon nanostructure-metal composite on one surface or both surfaces of a membrane support; and fusing the metal on the membrane support by heating the coated membrane support. The metal in carbon nanostructure-metal composite nanoporous film melts at a low temperature since a size of a metal of the carbon nanostructure-metal composite is several nm to several-hundred nm.Type: GrantFiled: March 26, 2010Date of Patent: November 18, 2014Assignee: Bioneer CorporationInventors: Han Oh Park, Jae Ha Kim, Myung Kuk Jin
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Publication number: 20140332459Abstract: The invention provides a novel type of filter media that offers efficient disinfection effects, while achieving a low water pressure drop and a high water flow rate when in use. Specifically, the filter media of the invention comprises a microorganism-killing membrane containing electro spun nanofiber fabrics loaded with biocidal nano-particles. The filter media of the invention is adhesive-layer free and contains at least one thermal binding layer that are made of spunbonded nonwoven polymeric fabrics. The invention also provides a water-purification cartridge and a portable water system thereof.Type: ApplicationFiled: May 10, 2013Publication date: November 13, 2014Applicant: Goodrich CorporationInventor: Jin Hu
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Publication number: 20140326660Abstract: Embodiments of a filter device utilize a membrane comprising poly(amic) acid. The membrane has a porous structure with pores configured to filter nano-sized particles, e.g., less than 100 nm. In one embodiment, the filter device can comprises a substrate (e.g., filter paper) and the membrane disposed on the substrate. This configuration is useful to capture, isolate, and detect nano-particles.Type: ApplicationFiled: March 7, 2014Publication date: November 6, 2014Applicant: The Research Foundation of Stale University of New YorkInventors: Omowunmi Sadik, Nian Du
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Publication number: 20140319047Abstract: The disclosure provides a filtration material and a method for fabricating the same. The filtration material includes a supporting layer, and a composite layer, wherein the composite layer includes an ionic polymer and an interfacial polymer. Particularly, the ionic polymer and the interfacial polymer are intertwined with each other, resulting from ionic bonds formed between the ionic polymer and the interfacial polymer.Type: ApplicationFiled: April 23, 2014Publication date: October 30, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shu-Hui CHENG, Wei-Cheng TSAI, Shan-Shan LIN, Yu-Chuan HSU, Yin-Ju YANG
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Publication number: 20140299537Abstract: There are provided a reverse osmosis membrane comprising a porous support; a silver nanowire layer formed on the porous support; and a polyamide film formed on the silver nanowire layer, and a fabrication method of a reverse osmosis membrane, the method comprising coating a porous support with an aqueous amine solution including silver nanowires to form a silver nanowire layer; and bringing the silver nanowire layer into contact with an aliphatic hydrocarbide-based organic solution including acyl halide to form a polyamide film.Type: ApplicationFiled: December 7, 2012Publication date: October 9, 2014Inventors: Jae-Hong Kim, Phill Lee, Young-Ju Lee, Chong-Kyu Shin