| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210500250 | Metal containing | 37 |
| 20080217240 | ORIENTED ZEOLITE FILM-PROVIDED STRUCTURE - An oriented zeolite membrane-provided structure comprising a support and a membrane-like, MFI type zeolite crystal (an oriented zeolite membrane) provided on the surface of the support, wherein, in the zeolite crystal, the proportion of zeolite crystals whose c-axes are oriented at an angle of 90°±33.76° relative to the surface of the support, is 90% or more of the whole zeolite crystals and the oriented zeolite membrane has a thickness of 1 to 30 μm. The present invention provides an oriented zeolite membrane-provided structure comprising a support and an oriented zeolite membrane provided thereon, wherein the c-axes of zeolite crystals of the membrane are oriented in a direction vertical to the surface of the support and the thickness of the membrane is small. | 09-11-2008 |
| 20100006495 | SEMIPERMEABLE POLYMERS AND METHOD FOR PRODUCING SAME - A polyamide membrane comprising 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 comprising one ring. A composite semipermeable membrane comprising the polyamide membrane on a porous support. | 01-14-2010 |
| 20120000845 | NANOPOROUS FILMS AND METHOD FOR MANUFACTURING THE SAME - 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. | 01-05-2012 |
| 20120024776 | Mesostructured Zeolitic Materials, and Methods of Making and Using the Same - One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers. | 02-02-2012 |
| 20120024777 | INORGANIC POROUS SUPPORT-ZEOLITE MEMBRANE COMPOSITE, PRODUCTION METHOD THEREOF, AND SEPARATION METHOD USING THE COMPOSITE - An object of the present invention is to provide a zeolite membrane composite satisfying both the treating amount and the separation performance at a practically sufficient level, which can be applied even in the presence of an organic material and can separate/concentrate an organic material-containing gas or liquid mixture and which is economic without requiring a high energy cost and is not limited in its application range; a production method thereof; and a separation or concentration method using the same. The present invention is an inorganic porous support-zeolite membrane composite, wherein the inorganic porous support contains a ceramic sintered body and the inorganic porous support-zeolite membrane composite has, as a zeolite membrane, a CHA-type zeolite crystal layer on the inorganic porous support surface. | 02-02-2012 |
| 20120055867 | DOPING OF INORGANIC MINERALS TO HYDROPHOBIC MEMBRANE SURFACE - Disclosed is a membrane surface modification method. The method is applicable to a variety of hydrophobic membranes by doping selected inorganic particles. One act of the method involves the in-situ embedment of the inorganic particles onto the membrane surface by dispersing the particles in a non-solvent bath for polymer precipitation. Further membrane surface modification can be achieved by hydrothermally growing new inorganic phase on the embedded particles. The embedment of particles is for the subsequent phase growth. | 03-08-2012 |
| 20120118815 | METALLIC-CERAMIC COMPOSITE MEMBRANES AND METHODS FOR THEIR PRODUCTION - Metallic-ceramic composite membranes and methods for producing the metallic-ceramic composite membranes are disclosed. The metallic-ceramic composite membranes include the advantages of a metallic substrate relative to known ceramic substrates, such as high permeability, better mechanical properties, and corrosion resistance, and the advantages of a ceramic membrane, such as high permeability, high permselectivity, mechanic strength, and thermal stability. Therefore, a three-layer metallic-ceramic composite membrane, including a porous metallic substrate, a first, intermediate mesoporous γ-alumina membrane layer, and a second, top mesoporous γ-alumina membrane layer, is disclosed. Because of the high mechanical strength of the metallic-ceramic composite membrane and because the pores of the second mesoporous γ-alumina membrane have a narrow size distribution and average size of about 2.1 nanometers, the metallic-ceramic composite membrane can be used to separate gases, such as carbon dioxide (CO | 05-17-2012 |
| 20120132584 | Inorganic membranes and method of making - An inorganic membrane having an improved pore structure. The membrane has a mean pore size of up to about 100 nm and a mean particle size in a range from about 10 nm to about 100 nm. In one embodiment, the membrane comprises α-alumina and is formed by providing a coating slip comprising δ-alumina; applying the coating slip to a support surface to form a coating layer; drying the coating layer; and firing the dried coating layer at a temperature of at least about 1000° C. to convert at least a portion of the δ-alumina to α-alumina and form the inorganic membrane. | 05-31-2012 |
| 20120228214 | Filled Porous Membrane - A porous membrane may have a high concentration of spherical fillers with a polymer binder. The polymer binder may have an affinity for the filler materials and may hold the filler materials together in a porous structure with high tortuosity and consistent pore size. The membrane may be manufactured with a reinforcing web, such as non-woven web. The membrane may be greater than 50% porous with a less than 1 micron pore size. Within the pore walls that may be less than 0.02 microns in width, a densely packed filler material may have an average diameter of less than 0.005 microns. | 09-13-2012 |
| 20120248029 | Curable Compositions And Membranes - 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. | 10-04-2012 |
| 20120312737 | PROGRAMMABLE MEMBRANE SYSTEM - Functionalized membranes for use in applications, such as electrodeionization, can be prepared simply and efficiently by associating a first element of a specific binding pair to a membrane surface and binding a second species comprising the second element of the specific binding pair and at least one functional group to form a complex on the membrane surface. Such membranes may be reversibly modified by disassociating the complex, thereby, providing a fresh surface which may be re-modified according to the preceding methods. | 12-13-2012 |
| 20120318731 | BIOFUNCTIONALIZED MICROFILTRATION OR ULTRAFILTRATION MEMBRANE - The invention relates to a membrane for the microfiltration or ultrafiltration of liquid fluids, in particular for the microfiltration or ultrafiltration of water or for the filtration of nanoparticles containing fluids. The membrane is characterized in that the membrane comprises, in particular electrospun, nanofibers, wherein the nanofibers are functionalized with proteins. Moreover, the invention relates to a method for producing a membrane for the microfiltration or ultrafiltration of liquid fluids, in particular for the microfiltration or ultrafiltration of water or for the filtration of nanoparticles containing fluids. Furthermore, the invention relates to a use of a microfiltration or ultrafiltration membrane. | 12-20-2012 |
| 20130098833 | METHOD OF PREPARING A NANOCOMPOSITE MEMBRANE AND NANOCOMPOSITE MEMBRANES PREPARED THEREOF - The present invention relates to a method of preparing a nanocomposite membrane, comprising: (a) providing a nanocomposite solution comprising a polymer solution and nanomaterials; (b) subjecting the nanocomposite solution to a cold water bath to produce the nanocomposite membrane in a gel-like form; and (c) subjecting the gel nanocomposite membrane to a heat treatment to solidify the nanocomposite membrane, wherein the nanomaterials are dispersed within the polymer matrix of the nanocomposite membrane. | 04-25-2013 |
| 20130270180 | CERAMIC NANOWIRE MEMBRANES AND METHODS OF MAKING THE SAME - Embodiments of the present invention disclose ceramic membranes having bonded ceramic nanowires. Methods of making ceramic membranes having bonded ceramic nanowires are also disclosed. | 10-17-2013 |
| 20130277300 | METHODS OF MEMBRANE MODIFICATION - A porous membrane can include a nanoparticle. | 10-24-2013 |
| 20130284667 | Polymer Filtration Membranes Containing Mesoporous Additives and Methods of Making the Same - Polymer composite membranes containing mesoporous particles which function in part as reinforcing agents, modifiers of polymer surface polarity, and membrane structure modifiers are provided. The composites provide superior resistance to internal damage and pore compaction, increased permeability to water with retention of separation fidelity, and resistance to chemical degradation and mechanical wear, along with minimal shedding of the reinforcing particles under applied pressure. These improvements in properties are particularly desirable for the water purification by membrane filtration methods. | 10-31-2013 |
| 20130327704 | ELECTROCHEMICAL SEPARATION MEMBRANE AND THE MANUFACTURING METHOD THEREOF - An electrochemical separation membrane and the manufacturing method thereof are disclosed. The method includes: a polymer solution preparing step to mix a polymer material, solvent and ceramic precursors thoroughly to form a polymer solution, wherein the polymer material and the ceramic precursors are dissolved uniformly in the solvent; a coating step to coat the polymer solution on a porous base material; a hydrolysis step to cause the porous base material coated with the polymer solution to contact an aqueous solution to hydrolyze the ceramic precursor into ceramic particles; and a drying step to remove the water and the solvent from the porous base material and in order to form the electrochemical separation membrane. The electrochemical separation membrane made of this method have better ion conductivity, interface stability and thermal stability based on the ceramic particles. | 12-12-2013 |
| 20140014574 | POROUS BODY AND HONEYCOMB-SHAPED CERAMIC SEPARATION-MEMBRANE STRUCTURE - The present invention aims to provide a honeycomb-shaped ceramic porous body where the strength reduction upon forming a separation layer is less than conventional porous bodies. The ceramic porous body ( | 01-16-2014 |
| 20140091031 | ANTIMICROBIAL MEMBRANES - The present invention discloses the preparation of antimicrobial membranes by inclusion of low leaching, control release silver-based antimicrobial additives as described in claim | 04-03-2014 |
| 20140144834 | MEMBRANE WITH TITANIUM DIOXIDE NANOSTRUCTURE AND METHOD FOR FABRICATING THE SAME - The present disclosure relates to a separation membrane with a titanium dioxide nanostructure bound thereto, wherein titanium dioxide in the form of nanowire is fixed to the separation membrane by means of a polymer nanostructure so as to prevent a decrease of the specific surface area and separation performance of the membrane and thus removal of pollutants by the separation membrane and photo oxidative degradation by titanium dioxide in the form of nanowire can be maximized, and a method for fabricating the same. | 05-29-2014 |
| 20140158612 | COMPOSITE MEMBRANE, METHOD OF MANUFACTURING THE SAME, SEPARATION MEMBRANE INCLUDING THE COMPOSITE MEMBRANE, AND WATER TREATMENT DEVICE USING THE SEPARATION MEMBRANE - An organic/inorganic composite membrane may include hydrophilic inorganic particles dispersed in an organic polymer matrix having finger-like pores. The hydrophilic inorganic particles may be present at a higher concentration near one surface of the membrane having a higher density than the other surface of the membrane having a lower density. | 06-12-2014 |
| 20140209533 | MULTILAYER, MICRO- AND NANOPOROUS MEMBRANES WITH CONTROLLED PORE SIZES FOR WATER SEPARATION AND METHOD OF MANUFACTURING THEREOF - The present invention relates to design and manufacture of multilayer sintered membranes made from metals and inorganic compounds (ceramics, silicate, clay, zeolites, phosphates, etc.). The membranes are designated for separation of water. They comprise at least one layer having nanopores commensurable with the size of water molecules. The membranes comprise: (a) supporting metallic layer having pore size 1-500 microns, (b) metallic interlayer having pore size <2 micron, (c) sublayer with local regular protrusions of the interlayer into the supporting layer to increase service life of the membrane, and (d) one nanoporous ceramic or metallic top layer having pore size in the range of 1-15 angstroms. The invented design and method allow the manufacture of cost-effective multilayer membranes containing nanoporous layer with controlled pore sizes in each layer and optimal morphology of pores that provides selective transport of molecules during filtration and separation of liquids. | 07-31-2014 |
| 20140263035 | METHOD FOR FORMING PERFORATED GRAPHENE WITH UNIFORM APERTURE SIZE - A method of forming a filter with uniform pore sizes includes synthesizing a moiety so as to form a plurality of like platelets having a precisely sized pore extending therethrough, distributing the plurality of like platelets about a membrane having apertures therethrough, and bonding the plurality of platelets around the apertures to form precisely sized pores through the membrane. A filtration membrane is also disclosed which provides a porous membrane having a plurality of apertures therethrough, and a plurality of platelets, wherein each platelet has a pore therethrough. The platelets are positioned over or in the apertures. | 09-18-2014 |
| 20140299537 | REVERSE OSMOSIS MEMBRANE INCLUDING NANO-SILVER WIRE LAYER AND FABRICATION METHOD THEREOF - 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. | 10-09-2014 |
| 20140326660 | MEMBRANE NANOFILTERS - 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. | 11-06-2014 |
| 20150068972 | NANOCOMPOSITE MEMBRANES - 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. | 03-12-2015 |
| 20150129489 | ORGANIC-INORGANIC POROUS MEMBRANE AND A METHOD FOR PREPARING THE SAME - 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. | 05-14-2015 |
| 20150298067 | POROUS MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a porous membrane having improved water permeability and elongation at break as well as high mechanical strength and impurity rejection rate and a method for manufacturing the same. The porous membrane of the present invention comprises a symmetric bead structure comprising a plurality of spherical crystallites. Each of the plurality of spherical crystallites comprises a plurality of sub-spherical crystallites. | 10-22-2015 |
| 20150343387 | MEMBRANES HAVING ANTIBIOTIC AND HYDROPHILIC PROPERTIES AND PREPARATION METHOD THEREOF - The present invention relates to a separation membrane having both antibiotic and hydrophilic properties for water treatment and a preparation method thereof. In the separation membrane of the present invention, since an organic compound (antimicrobial and/or hydrophilic compound) is chemically conjugated to non-metal inorganic nanoparticles or metal nanoparticles, the nanoparticles are not eluted from the separation membrane even when the separation membrane is used for water treatment for a long period of time, so that the separation membrane may continuously maintain antimicrobial properties and high water permeability, is safe to the human body even when used for the treatment of drinking water, such as water purification, and exhibits characteristics in which stain resistance is also significantly enhanced due to antimicrobial and hydrophilic properties, which have been continuously imparted. Furthermore, high mechanical strength is exhibited by a metal or inorganic nanofiller introduced. | 12-03-2015 |
| 20150343390 | POROUS METALLIC MEMBRANE - The present disclosure relates to a method of forming a metallic layer having pores extending therethrough, the method comprising the steps of: (a) contacting a cathode substrate with an electrolyte solution comprising at least one cation; reducing the cation to deposit the metallic layer on a surface of the cathode substrate; and (c) generating a plurality of non-conductive regions on the cathode substrate surface during reducing step (b); wherein the deposition of the metallic layer is substantially prevented on the non-conductive regions on the cathode substrate surface to thereby form pores extending through the deposited metallic layer. The present disclosure further provides a metallic porous membrane fabricated by the disclosed process. | 12-03-2015 |
| 20150375175 | METHOD OF FABRICATING NANOPOROUS ORGANIC-INORGANIC HYBIRD FILM AND NANOPOROUS ORGANIC-INORGANIC HYBIRD FILM MANUFACTURED BY THE METHOD AND NANOPOROUS MEMBRANE EMPLOYING THE NANOPOROUS ORGANIC-INORGANIC HYBIRD FILM - Disclosed herein is a method of preparing a nanoporous organic-inorganic hybrid film. The method includes preparing an organic sol including a compound having amino groups, a compound having isocyanate groups, and a solvent; adding an inorganic oxide precursor to the organic sol to form a mixed solution; and subjecting the mixed solution to heat treatment to form an organic molecule network structure in which the organic sol is gelled, and an inorganic molecule network structure located along a surface of the organic molecule network structure. | 12-31-2015 |
| 20160008771 | ZEOLITE MEMBRANE HAVING OXYGEN EIGHT-MEMBERED RINGS, METHOD FOR MANUFACTURING ZEOLITE MEMBRANE AND METHOD FOR EVALUATING ZEOLITE MEMBRANE HAVING OXYGEN EIGHT-MEMBERED RINGS | 01-14-2016 |
| 20160059190 | LIQUID FILTERING STRUCTURE - A liquid filtering structure having high filtering efficiency, excellent transparency, and excellent durability can be provided. The liquid filtering structure includes a filtering layer, wherein the filtering layer includes a nanopore structure unit including a plurality of nanopores and a functional group-containing compound including functional groups at one end, and has selectivity with respect to liquid molecules to be filtered, for example, water molecules, and effectively filter liquid, particularly water by preventing ions or compounds from being passed. | 03-03-2016 |
| 20160096149 | NANOCOMPOSITE MIXED-MATRIX MEMBRANE - The nanocomposite mixed-matrix membrane is a nanocomposite made from a nanofiller of Halloysite nanotubes or polypropylene-grafted maleic anhydride nano-layered silica dispersed or embedded in a hydrophobic polymer matrix. The Halloysite nanotubes are a 1:1 layered alumino-silicate clay having the chemical formula Al | 04-07-2016 |
| 20160121271 | METHOD FOR MANUFACTURING FILTERING MEMBRANES BY ADDITIVE TECHNIQUE AND RESULTING MEMBRANES - The present invention relates to a membrane and a method for manufacturing a membrane for filtering a fluid, said membrane comprising: a substrate having a three-dimensional structure and consisting of an one-piece ceramic porous body; and at least one separating filtering layer having a porosity that is lower than that of the substrate, in which the three-dimensional structure of the substrate is produced by forming elemental layers that are stacked and connected in series with one another, by repeating steps: a) depositing a continuous bed of powder at least partially consisting of a powder intended for forming the ceramic porous body; b) locally consolidating, part of the deposited material such as to create the elemental layer, and simultaneously linking the elemental layer thus formed with the preceding layer such as to gradually grow the desired three-dimensional shape. | 05-05-2016 |
| 20160129399 | DOPING OF INORGANIC MINERALS TO HYDROPHOBIC MEMBRANE SURFACE - Disclosed is a membrane surface modification method. The method is applicable to a variety of hydrophobic membranes by doping selected inorganic particles. One act of the method involves the in-situ embedment of the inorganic particles onto the membrane surface by dispersing the particles in a non-solvent bath for polymer precipitation. Further membrane surface modification can be achieved by hydrothermally growing new inorganic phase on the embedded particles. The embedment of particles is for the subsequent phase growth. | 05-12-2016 |
| 20160151747 | Porous Nanomembranes | 06-02-2016 |
