Amine Patents (Class 210/500.37)
  • Patent number: 10960358
    Abstract: The present invention relates to a method for the production of a positively charged membrane. Furthermore the present invention relates to a positively charged membrane obtainable by the methods of present invention and the use of these positively charged membranes.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 30, 2021
    Assignee: NX Filtration Holding B.V.
    Inventors: Hendrik Dirk Willem Roesink, Joris De Grooth
  • Patent number: 10807069
    Abstract: A filtration media is disclosed comprising a hydrophobic monomer grafted onto a support, the hydrophobic monomer having the structure: CH2?CR4C(O)NHC(R1R1)(C(R1R1))nC(O)XR3 wherein n is an integer of 0 or 1; R1 is independently selected from at least one of: a hydrogen atom, alkyls, aryls, and alkylaryls, wherein the alkyls, aryls, and alkylaryls have a total of 10 carbon atoms or less; R3 is a hydrophobic group selected from at least one of: alkyls, aryls, alkylaryls and ethers, wherein the alkyls, aryls, alkylaryls and ethers have a total number of carbon atoms ranging from 4 to 30; R4 is H or CH3; X is O or NH. In some embodiments the hydrophobic monomer is derived from an amine or an alcohol (HXR3) that has a hydrophilicity index of 25 or less. Such media may be used in applications such as hydrophobic interaction chromatography.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: October 20, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Cary A. Kipke
  • Patent number: 10456755
    Abstract: Disclosed herein are forward osmosis (FO) membranes comprising polyaniline. Methods of making the membranes, including methods of tuning the properties of the membranes by post-casting treatments, and methods of using the membranes in FO applications are also described.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: October 29, 2019
    Assignee: The Regents of the University of California
    Inventors: Eric M. V. Hoek, Mavis C. Y. Wong, Richard B. Kaner
  • Patent number: 9909063
    Abstract: Provided is a composition for etching polymeric materials comprising an aqueous solution including an alkali metal salt and glycine.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 6, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Ravi Palaniswamy
  • Patent number: 9701859
    Abstract: Polymeric compositions having a slip agent comprising a silicone and a fatty acid amide. Such polymeric compositions can exhibit lower coefficients of friction when compared to polymeric compositions containing either silicone or fatty acid amide alone. Such polymeric compositions are suitable for use in various articles of manufacture, including, for example, wire and cable jackets.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: July 11, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Buo Chen, Mohamed Esseghir, Jeffrey M. Cogen, Chester J. Kmiec, Anny L. Flory, Saswati Pujari
  • Patent number: 9266069
    Abstract: There is provided an ion-exchange membrane comprising an ion-exchange layer made of a cationic polymer and/or an anionic polymer and a supporting layer, wherein the ion-exchange layer is formed on the supporting layer by printing. Such an ion-exchange membrane exhibits excellent anti-organic fouling and low membrane resistance, thereby high efficient and long-time stable electrodialysis can be achieved. Formation of the ion-exchange layer as a charge-mosaic layer consisting of the cationic polymer domains and the anionic polymer domains provides a charge-mosaic membrane exhibiting excellent electrolyte permselectivity and mechanical strength.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 23, 2016
    Assignees: YAMAGUCHI UNIVERSITY, KURARAY CO., LTD.
    Inventors: Mitsuru Higa, Atsushi Jikihara, Kenichi Kobayashi, Naoki Fujiwara
  • Patent number: 9097712
    Abstract: A method for quantitatively measuring white blood cell (leukocyte) count and/or white blood cell (leukocyte) subsets count involves adding specific antibodies labeled with a marker to the biological fluid sample, capture of white blood cells from a fluid sample by a retainer, removal of other than leukocyte cells and other interfering substances by washing or using specific magnetic beads, and reading the result. The device for use in the present method includes a retainer for leukocyte cells and an absorption pad for taking up all excess washing solution flowing past the sample.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: August 4, 2015
    Assignee: Allied Innovative Systems LLC
    Inventors: Simon Bystryak, Rasa Santockyte
  • Publication number: 20150096935
    Abstract: 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: Application
    Filed: October 6, 2014
    Publication date: April 9, 2015
    Inventors: Somenath Mitra, Sagar Roy, Madhulina Bhadra
  • Publication number: 20140360932
    Abstract: The present disclosure relates to polymeric matrices composed of protected amine compound residues and membranes composed from such polymeric matrices. In particular, the present disclosure relates to a polymeric matrix comprising amine compound residues, acyl compound residues and protected amine compound residues.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventor: Qingshan Jason NIU
  • Patent number: 8881915
    Abstract: PURPOSE: To provide a polymeric porous hollow fiber membrane which exhibits excellent fractionation performance and excellent permeability in treatment of a variety of aqueous fluids and also shows sufficient strength when incorporated into a module or used to treat a fluid, and which is excellent in aging stability in these performances and characteristics and is also excellent in membrane performance recoverability by washing, and which is especially suitable for treatment of a polyphenol-containing beverage and is expected to effectively harmonize the flavor of such a beverage.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 11, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hideyuki Yokota, Noriaki Kato, Hirofumi Ogawa, Junsuke Morita
  • Publication number: 20140319047
    Abstract: 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: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shu-Hui CHENG, Wei-Cheng TSAI, Shan-Shan LIN, Yu-Chuan HSU, Yin-Ju YANG
  • Patent number: 8839961
    Abstract: An object of the present invention is to provide a biosensor comprising a hydrogel capable of immobilizing a physiologically active substance thereon, which can be produced conveniently by use of a safe material, and a method for producing the same. The present invention provides a method for producing a biosensor, which comprises bringing a polymer containing an activated carboxyl group into contact with a substrate surface coated with an organic layer having an amino group to thereby bind the polymer to the organic layer.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: September 23, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Taisei Nishimi, Toshihide Ezoe, Koji Kuruma, Masayuki Kawakami
  • Publication number: 20140238939
    Abstract: The present invention discloses antimicrobial water treatment membranes, comprising a water treatment membrane, covalently attached to one or more antimicrobial polymers or derivatives thereof, either directly or via one or more tether molecules. There are also provided a process for preparing these antimicrobial membranes, and uses thereof in water treatment applications.
    Type: Application
    Filed: June 14, 2012
    Publication date: August 28, 2014
    Applicants: WISCONSIN ALUMNI RESEARCH FOUNDATION, BENIGURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITY
    Inventors: Ron Kasher, Shani Avneri, Marina Yamit Lutsky, Jihua Zhang, Samuel Helmer Gellman, Shannon Stahl
  • Patent number: 8801935
    Abstract: A process for preparing a reverse osmosis membrane that includes: (A) providing a polyamine, a polyfunctional acid halide, and a flux increasing additive having the formula Z+B? where Z+ is an easily dissociable cation and B? is a beta-diketonate; (B) combining the polyamine, polyfunctional acid halide, and flux increasing additive on the surface of a porous support membrane; and (C) interfacially polymerizing the polyamine and the polyfunctional acid halide, and flux increasing additive on the surface of the porous support membrane to form a reverse osmosis membrane comprising (i) the porous support membrane and (ii) a discrimination layer comprising a polyamide. The reverse osmosis membrane is characterized by a flux that is greater than the flux of the same membrane prepared in the absence of the flux increasing additive.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 12, 2014
    Assignee: NanoH2O, Inc.
    Inventors: Jeffrey Alan Koehler, Christopher James Kurth
  • Patent number: 8752714
    Abstract: A membrane comprising a blend of a sulfonated poly(aryl ether) and a phenyl amine compound along with methods for making and using the same. Many additional embodiments are described including applications for such membranes.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: June 17, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: William E. Mickols, Mou Paul, Abhishek Roy
  • Patent number: 8739976
    Abstract: A crystalline polymer microporous membrane containing a crystalline polymer microporous film containing a crystalline polymer, and having an asymmetric pore structure; fluorine alcohol covering at least part of an exposed surface of the crystalline polymer microporous film; and a crosslinking agent, wherein the fluorine alcohol is crosslinked with assistance of the crosslinking agent.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 3, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kenichi Ishizuka, Nobuhiro Nishita
  • Patent number: 8684187
    Abstract: A polyamide membrane including reaction product of an anhydrous solution comprising an anhydrous solvent, at least one polyfunctional secondary amine and a pre-polymer deposition catalyst, and an anhydrous, organic solvent solution comprising a polyfunctional aromatic amine-reactive reactant having one ring. A composite semipermeable membrane including the polyamide membrane on a porous support.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: April 1, 2014
    Assignee: Eltron Research & Development, Inc.
    Inventor: Wayne E. Buschmann
  • Publication number: 20140069862
    Abstract: The present invention is directed to microfiltration and ultrafiltration membranes comprising a microporous material. The microporous material comprises: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distributed throughout said matrix, said filler constituting from about 10 percent to about 90 percent by weight of said coated microporous material substrate, (c) at least 20 percent by volume of a network of interconnecting pores communicating throughout the coated microporous material, and (d) at least one coating composition applied to at least one surface of the membrane to adjust the surface energy of the membrane.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Inventors: Qunhui Guo, Carol Knox, Shawn P. Duffy, Luciano M. Parrinello, Nicholas J. Parise, Brian K. Rearick
  • Publication number: 20140061122
    Abstract: The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has ? electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer.
    Type: Application
    Filed: March 14, 2012
    Publication date: March 6, 2014
    Applicant: W.L. Gore & Associates, Co., Ltd.
    Inventors: Tomoka Ogura, Keiichi Yamakawa
  • Publication number: 20140060324
    Abstract: The present invention relates to a membrane including a reaction product of an epoxy-functional organopolysiloxane and an amino-functional curing agent, wherein the organopolysiloxane has an average of at least two silicon-bonded epoxy-substituted organic groups per molecule and the curing agent has an average of at least two nitrogen-bonded hydrogen atoms per molecule. The invention further relates to a method of separating gas components in a feed gas mixture by use of the membrane.
    Type: Application
    Filed: April 4, 2012
    Publication date: March 6, 2014
    Applicant: Dow Corning Corporation
    Inventors: Dongchan Ahn, Christopher Wong, James S. Hrabal
  • Publication number: 20140054227
    Abstract: The present invention provides a sugar-immobilized polymer substrate for removing a virus, the polymer substrate allowing efficient removal of a hepatitis virus or the like in a fluid, and a method for removing a virus. In particular, the present invention provides a sugar-immobilized polymer substrate for removing a hepatitis virus or the like, the polymer substrate allowing, in the case of an application to blood of a living body, reduction in the amount of blood taken out of the body, reduction in the removal amount of blood useful components, low invasiveness, and shortening of the operation cycle; and a method for removing a virus. A hollow fiber membrane according to the present invention can be used as a module having a function of effectively removing a virus and a function of not removing useful plasma components.
    Type: Application
    Filed: February 29, 2012
    Publication date: February 27, 2014
    Applicant: DIC CORPORATION
    Inventors: Naoto Sakurai, Naoya Ikushima, Tetsuro Suzuki
  • Publication number: 20140054221
    Abstract: A membrane with rejection properties for mono and divalent-salts, BOD and COD good resistance to cleaning chemicals and maintaining high permeability for water. A polymeric coating prepared from polydopamine or hydroquinone or catechol or mixtures thereof, is deposited. In another embodiment, coating process steps and conditions are taught to achieve thickness control to tune the rejection properties of the membranes.
    Type: Application
    Filed: May 15, 2012
    Publication date: February 27, 2014
    Applicant: ADVANCED HYDRO INC
    Inventors: Dileep Agnihotri, Xiaofei Huang, Hua Li
  • Publication number: 20140048487
    Abstract: A filtration membrane (4) including a porous base layer (8) arranged adjacent to a filtration layer (6) having pores (10) extending through the filtration layer (6) is provided. The filtration layer is electrically conductive and at least one compound (24, 26) is attached on the filtration layer (6), thereby providing a protective surface layer (40). The at least one compound (24, 26) is configured to be at least partially cleaved off of the filtration layer (6) by a predefined cleave-off process.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 20, 2014
    Applicant: GRUNDFOS MANAGEMENT A/S
    Inventor: Allan Hjarbæk Holm
  • Patent number: 8651284
    Abstract: A hydrophilic semipermeable hollow-fiber membrane for blood treatment, with an integrally asymmetric structure based on a synthetic polymer. The hollow-fiber membrane possesses on its inner surface a separating layer and an adjoining open-pored supporting layer, and has an ultrafiltration rate in albumin solution of 5 to 25 ml/(h·m2·mmHg). The hollow-fiber membrane is free from pore-stabilizing additives and has a maximum sieving coefficient for albumin of 0.005 and a sieving coefficient for cytochrome c that satisfies the equation SCCC?5·10?5·UFRAlb3?0.004·UFRAlb2+1.081·UFRAlb?0.25.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: February 18, 2014
    Assignee: Membrana GmbH
    Inventors: Friedbert Wechs, Arne Gehlen, Bodo von Harten, Richard Kruger, Oliver Schuster
  • Patent number: 8646616
    Abstract: Composite membranes including a coating comprising a combination of polyalkylene oxide and imidazol compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and an imidazol compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more imidazol functional groups.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: February 11, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: William E. Mickols, Chunming Zhang, Christopher T. Hamilton
  • Patent number: 8631946
    Abstract: A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups/(molar equivalent of the azo groups+molar equivalent of the phenolic hydroxyl groups+molar equivalent of the amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups/(molar equivalent of the azo groups+molar equivalent of the phenolic hydroxyl groups+molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide layer (a B surface), i.e.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 21, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Takao Sasaki, Tomoko Mitsuhata, Kentaro Takagi, Katsufumi Oto
  • Publication number: 20130334130
    Abstract: A conformal coating that resists fouling by waterborne contamination in aquatic environments, a method for fabricating the coating, and a filter having such a coating are disclosed. The coating comprises a hydrophilic polymer and a surfactant wherein the surfactant undergoes a phase change upon exposure to a saline solution. Also disclosed are in situ methods for regenerating anti-fouling filters having the fouling resistant coating.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventors: Rahul Ganguli, Vivek Mehrotra, Tony Ten-Luen Liao
  • Publication number: 20130313187
    Abstract: A process for producing a resilient ion exchange membrane. The process comprises the steps of (1) selecting a porous matrix, (2) saturating the porous matrix with a homogenous solution comprising a mixture of: (i) a hydrophilic ionic monomer, (ii) a hydrophobic cross-linking oligomer and/or a comonomer, (iii) a free radical initiator, and (iii) a solvent for solubilizing the hydrophilic ionic monomer, the hydrophobic cross-linking oligomer and/or comonomer, and the free radical initiator into a homogenous mixture.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 28, 2013
    Applicant: SALTWORKS TECHNOLOGIES INC.
    Inventors: Xiangchun Yin, Zhongyuan Zhou
  • Patent number: 8567611
    Abstract: The invention discloses a filtration material for desalination, including a support layer, and a desalination layer formed on the support layer, wherein the desalination layer is a fiber composite membrane and includes at least one water-swellable polymer. The water-swellable polymer is made of hydrophilic monomers and hydrophobic monomers, and the hydrophilic monomers include ionic monomers and non-ionic monomers, and the ionic monomers include cationic monomers and anionic monomers.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 29, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Hui Cheng, Jong-Pyng Chen, En Kuang Wang, Yi-Chun Lo, Shan-Shan Lin
  • Publication number: 20130277300
    Abstract: A porous membrane can include a nanoparticle.
    Type: Application
    Filed: April 12, 2013
    Publication date: October 24, 2013
    Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Suzana NUNES, Iran D. CHARRY PRADA
  • Patent number: 8561811
    Abstract: A substrate having compounds disposed thereon for immobilizing a functional molecule, each compound having a chain including: a moiety R that is chemically coupled to the substrate, the moiety R being selected from the group consisting of an ether, ester, carbonyl, carbonate ester, thioether, disulfide, sulfinyl, sulfonyl, and carbonothioyl; and an epoxide-containing moiety that is coupled to the moiety R by a linker including at least one nucleophilic group. Methods of preparing the substrate and use of the substrate are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 22, 2013
    Assignee: Temasek Polytechnic
    Inventors: Christian Gert Bluchel, Yanmei Wang
  • Publication number: 20130233791
    Abstract: The present invention relates to a separation membrane for water treatment having high water flux and membrane contamination preventing characteristics, and a manufacturing method thereof. The separation membrane for water treatment according to the present invention includes a nanofiber wherein the separation membrane has a surface electric charge. According to the present invention, a separation membrane for water treatment having high water flux and membrane contamination preventing characteristics, and a manufacturing method thereof may be implemented.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 12, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chong Min KOO, Kyung Youl BAEK, Seung Sang HWANG, Soon Man HONG, Ho Bum PARK, Ji Young JUNG, Jang Woo LEE, Young Hoon CHO, Seung Gun YU, Sang Hee PARK
  • Publication number: 20130213880
    Abstract: A separation membrane is provided containing hydrophilic molecules and having, as formed on at least one surface of a feed side and a permeate side thereof, a height difference of from 80 ?m to 2000 ?m, in which a weight of the hydrophilic molecules in a bone-dry separation membrane is from 0.1% to 40% based on a weight of the bone-dry separation membrane from which the weight of the hydrophilic molecules has been subtracted.
    Type: Application
    Filed: October 21, 2011
    Publication date: August 22, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroho Hirozawa, Masakazu Koiwa, Kentaro Takagi, Yutaro Suzuki, Katsufumi Oto, Masahiro Fimura
  • Patent number: 8505745
    Abstract: The present application is generally directed towards polyacrylonitrile- (PAN-) based, amphophilic graft copolymers, for example, for the production of membranes for liquid filtration. In one aspect, the present invention provides systems and methods for preparing high flux, fouling resistant nanofiltration membranes whose pore size can be readily tuned. In some cases, microphase separation of a graft copolymer comprising a backbone comprising polyacrylonitrile (PAN) and hydrophilic side-chains is used. In some cases, nanochannels of tunable width are formed, which may give the membrane permselective properties and/or anti-fouling character. In some cases, a copolymer may be used as an additive in the immersion precipitation casting of ultrafiltration or microfiltration membranes. In certain instances, the additive can segregate to the membrane exterior and/or pore surfaces, e.g.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 13, 2013
    Assignee: Massachusetts Institute of Technology
    Inventor: Ayse Asatekin Alexiou
  • Publication number: 20130184503
    Abstract: The invention relates to a membrane having a pore-free separating laye including a polymer mixture for separating simple alcohols and water fr their mixtures with other organic fluids by means of pervaporation or vapor permeation. In accordance with the invention, the polymer mixtu is composed of at least two polymer components which are taken from t group of polymer components which includes of the following polymer components: Polyvinyl alcohol, other polymers such as poly N-N-dimethylaminoethyl methacrylate (poly DMAEMA), a copolymer of DMAEMA and N-vinyl pyrrolidone (NVP) or of DMAEMA and N-vinyl caprolactam (NVCL), a terpolymer of DMAE, NVP and NVCL or of vinyl acetate ethylene vinyl chloride or from vinyl chloride ethylene acrylic es or from vinyl acetate vinyl chloride acrylic ester. The invention further relates to the use and to a method for manufacturing a membrane in accordance with the invention.
    Type: Application
    Filed: July 6, 2011
    Publication date: July 18, 2013
    Applicant: SULZER CHEMTECH AG
    Inventors: Michael Frania, Andreas Huebner, Eva Maus
  • Publication number: 20130146530
    Abstract: One aspect of the present invention includes a membrane. The membrane includes a porous support and a polymeric layer disposed on the porous support. The membrane further includes a plurality of substantially hydrophobic mesoporous nanoparticles disposed within the polymeric layer. A water treatment system and a method of making a membrane are also presented.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 13, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hua Wang, Steven Thomas Rice, Gary William Yeager, Joseph Anthony Suriano, Elizabeth Marie Dees
  • Patent number: 8443986
    Abstract: A reverse osmosis membrane that can maintain high permeability for a longer time, a reverse osmosis membrane apparatus, and a hydrophilic treatment method for a reverse osmosis membrane. A reverse osmosis membrane to which poly(vinyl alcohol) is absorbed, wherein the poly(vinyl alcohol) is an ionic poly(vinyl alcohol). Preferably, adsorption of a cationic PVA to the reverse osmosis membrane is followed by adsorption of an anionic PVA. More preferably, an ionic polymer other than PVA is also absorbed to the reverse osmosis membrane. A reverse osmosis membrane apparatus including the reverse osmosis membrane. A hydrophilic treatment method for a reverse osmosis membrane, involving bringing the reverse osmosis membrane into contact with an ionic poly(vinyl alcohol).
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: May 21, 2013
    Assignee: Kurita Water Industries Ltd.
    Inventors: Yu Tanaka, Masanobu Osawa
  • Publication number: 20130112618
    Abstract: Filtration membrane comprising polymeric nanofibers and/or microfibers attaching dendrimer component presenting reactive sites selective for chemicals to be filtered, and related nanofibers and microfibers, composite materials, compositions, methods and system.
    Type: Application
    Filed: August 8, 2012
    Publication date: May 9, 2013
    Inventors: Mamadou S. DIALLO, William A. GODDARD, III, Seong-Jik PARK, Manki CHO
  • Patent number: 8303819
    Abstract: A separating material formed by a solid substrate having a substrate surface, primary or secondary amines coupled to the substrate surface, and a graft polymer formed on the substrate by covalently coupling the primary or secondary amines with a thermally labile radical initiator and subsequently contacting the substrate surface with a solution of one or more polymerizable monomers. Methods for the extracorporeal treatment of blood, blood plasma or blood serum employing the separating material, for affinity adsorption, ion-exchange adsorption, hydrophobic adsorption, or hydrophilic adsorption employing the separating material, and a separating column employing the separating material are also disclosed.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: November 6, 2012
    Assignee: Gambro Lundia AB
    Inventors: Markus Storr, Egbert Muller, Wolfgang Freudemann
  • Publication number: 20120261343
    Abstract: Various aspects of the present invention pertain to porous membranes that comprise: (1) a plurality of pores with pore sizes of more than about 0.1 ?m in diameter; and (2) a plurality of hydrophilic molecules. Additional aspects of the present invention pertain to methods of separating organic compounds from a liquid sample by: (1) providing the porous membrane; and (2) flowing the liquid sample through the porous membrane in order to retain organic compounds on the porous membrane. Further aspects of the present invention pertain to systems for separating organic compounds from a liquid sample. Such systems comprises: (1) the porous membrane; and (2) a flowing unit that enables the liquid sample to flow through the porous membrane. Additional aspects of the present invention pertain to methods of making the above-described porous membranes by: (1) coating a surface of a porous membrane containing 0.
    Type: Application
    Filed: April 15, 2011
    Publication date: October 18, 2012
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Andrew R. Barron, Samuel J. Maguire-Boyle
  • Publication number: 20120261344
    Abstract: Reverse osmosis membranes made by interfacial polymerization of a monomer in a nonpolar (e.g. organic) phase together with a monomer in a polar (e.g. aqueous) phase on a porous support membrane. Interfacial polymerization process is disclosed for preparing a highly permeable RO membrane, comprising: contacting on a porous support membrane, a) a first solution containing 1,3-diaminobenzene, and b) a second solution containing trimesoyl chloride, wherein at least one of solutions a) and b) contains nanoparticles when said solutions are first contacted, and recovering a highly permeable RO membrane.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 18, 2012
    Inventors: Christopher James Kurth, Jeffrey Alan Koehler, Meijuan Zhou, Brett Anderson Holmberg, Robert Leon Burk
  • Patent number: 8286803
    Abstract: A method for fabricating a reverse osmosis membrane is described. The method includes aligning a plurality of carbon nanotubes at the interface of two liquids, the first liquid being an aqueous layer, and the second layer being an organic layer that is immiscible to the aqueous layer, forming a thin layer selective membrane around the aligned carbon nanotubes at the interface of the two liquids, and bonding the thin layer selective membrane/carbon nanotube composite onto a structural support layer.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: October 16, 2012
    Assignee: The Boeing Company
    Inventors: Andrew P. Nowak, Larken E. Euliss
  • Publication number: 20120241391
    Abstract: Disclosed are filter media constituents, filter media, filter constructions, and methods of employing the filter media and filter constructions for fluid filtration. The filter media and filter media constituents of the invention have unique properties enabling the efficient capture of microbes or microbial generating units. Fluids usefully filtered using the filter media and filter constructions include air and water.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Applicant: RECEPTORS LLC
    Inventors: Robert E. Carlson, Karen Schlichtmann Schmidt, Robert M. Carlson
  • Patent number: 8241549
    Abstract: The present invention relates generally to a structure for a diffused aeration system. More particularly, the invention encompasses a diffuser membrane where at least a portion of the surface has been treated with at least one layer of fluorine, to form a fluorinated elastomeric gas diffuser membrane. The invention also includes the deposition of fluorine atoms on the surface of a non-fluorine containing membrane to create a permanent fluoro-elastomeric surface layer. Tubular and disc diffuser members are also disclosed that have at least a portion of them treated with at least one layer of fluorine. A process of making the inventive diffuser membrane is also disclosed.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 14, 2012
    Inventors: Thomas E. Frankel, Seoungil Kang, Todd D. Ritter
  • Publication number: 20120160771
    Abstract: A separating material formed by a solid substrate having a substrate surface, primary or secondary amines coupled to the substrate surface, and a graft polymer formed on the substrate by covalently coupling the primary or secondary amines with a thermally labile radical initiator and subsequently contacting the substrate surface with a solution of one or more polymerizable monomers. Methods for the extracorporeal treatment of blood, blood plasma or blood serum employing the separating material, for affinity adsorption, ion-exchange adsorption, hydrophobic adsorption, or hydrophilic adsorption employing the separating material, and a separating column employing the separating material are also disclosed.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 28, 2012
    Applicant: GAMBRO LUNDIA AB
    Inventors: Markus Storr, Egbert Müller, Wolfgang Freudemann
  • Publication number: 20120145626
    Abstract: A device for culturing, storing and expanding adherent renal cells. The device permits the adhesion and proliferation of the cells and the surface characteristics of the membrane material used in said device further permit the cellular matrix components (EMC). A method for expanding adherent renal cells and methods of using particular membranes for culturing, storing and expanding adherent renal cells. The membranes comprise a copolymer of acrylonitrile and sodium methallyl sulfonate as well as polyethylenimine.
    Type: Application
    Filed: September 23, 2009
    Publication date: June 14, 2012
    Applicant: GAMBRO LUNDIA AB
    Inventors: David Luttropp, Markus Neubauer, Helmut Geiger, Juergen Bereiter-Hahn, Patrick Baer, Reinhold Deppisch, Doris Deppisch
  • Patent number: 8177978
    Abstract: An interfacial polymerization process (IFP) for preparing a highly permeable TFC RO membrane by contacting on a porous support membrane for IFP, a polyfunctional acyl halide monomer and a polyamine monomer and recovering a highly permeable thin film (TFC) reverse osmosis (RO) membrane. At least one of solutions may contain nanoparticle additives which may release ions into solution and at least one of the solutions may contain additional ions from a second additive. The presence of the nanoparticle additives during IFP may increase the hydrophilicity and/or permeability of the recovered membrane compared to a control membrane. The presence of the additional ions from the second additive may also increase the permeability of the recovered membrane.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 15, 2012
    Assignee: NanoH20, Inc.
    Inventors: Christopher James Kurth, Jeffrey Alan Koehler, Meijuan Zhou, Brett Anderson Holmberg, Robert Leon Burk
  • Patent number: 8167144
    Abstract: Provided is a water separation membrane capable of effectively separating water from a water solution of ethanol, saccharide or the like. The water separation membrane is composed of polypyrrole doped with a sulfonate ion. The sulfonate ion may be an aromatic or aliphatic sulfonate ion.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 1, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akihisa Tanaka, Kazuhiro Kagawa, Pu Qian
  • Publication number: 20120080381
    Abstract: Processes for manufacturing a thin film composite membrane comprising multi-walled carbon nanotubes include contacting under interfacial polymerization conditions an organic solution comprising a polyacid halide and carbon nanotubes with an aqueous solution comprising a polyamine to form a thin film composite membrane on a surface of a porous base membrane, wherein the organic solution additionally comprises a saturated cyclic C5-C20 hydrocarbon solvent.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hua Wang, Gary William Yeager, Steven Thomas Rice
  • Patent number: 8142844
    Abstract: The present invention provides a separating material producable by a) providing a solid substrate, having amino-functional groups coupled to the substrate surface, b) covalently coupling of the amino-functional groups with a thermally labile radical initiator, c) contacting the substrate surface with a solution of polymerizable monomers under conditions, where thermally initiated graft copolymerization of the monomers takes place, to form a structure of adjacent functional polymer chains on the surface of the substrate.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: March 27, 2012
    Assignee: Gambro Lundia AB
    Inventors: Markus Storr, Egbert Müller, Wolfgang Freudemann