| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 096010000 | Hollow fiber or cylinder | 41 |
| 20090114097 | MAT MATERIAL AND EXHAUST GAS TREATMENT DEVICE - A mat material includes an inorganic fiber, a first sheet material and a second sheet material. The first sheet material is provided on a first surface of the mat material. The second sheet material is provided on a second surface of the mat material. The first sheet material and the second sheet material show a different elongation amount in a longitudinal direction of the mat material under a same tensile load. | 05-07-2009 |
| 20090282982 | HOLLOW FIBER, DOPE COMPOSITION FOR FORMING HOLLOW FIBER, AND METHOD OF PREPARING HOLLOW FIBER USING THE SAME - Disclosed is a hollow fiber that includes a hollow positioned at the center of the hollow fiber, macropores positioned at adjacent to the hollow, and mesopores and picopores positioned at adjacent to macropores, and the picopores are three dimensionally connected to each other to form a three dimensional network structure. The hollow fiber includes a polymer derived from polyamic acid, and the polyamic acid includes a repeating unit obtained from aromatic diamine including at least one ortho-positioned functional group with respect to an amine group and dianhydride. | 11-19-2009 |
| 20100005969 | Pd Menbrane Having Improved H2-Permeance, and Method of Making | 01-14-2010 |
| 20100024650 | MICROTANKS FOR COMPRESSED GAS STORAGE AND METHODS FOR MAKING SAME - Microtanks are formed in capped holey fibers. Holey fiber is composed of a shell, a porous layer and a hollow core. Compressed gas can be stored in plurality of microtanks at elevated pressure. A method of storing and releasing hydrogen gas in or out of a plurality of microtanks is also disclosed. | 02-04-2010 |
| 20100058926 | PHOTO-CROSSLINKED GAS SELECTIVE MEMBRANES AS PART OF THIN FILM COMPOSITE HOLLOW FIBER MEMBRANES - A thin film composite membrane comprises a core layer and a sheath UV-crosslinked polymer layer. The thin film composite membrane is produced by the co-extrusion of two polymer solutions. The core layer and the sheath layer can be separately optimized. The sheath layer may be UV-crosslinked to provide stability and selectivity at the desired operating temperature of the composite membrane. | 03-11-2010 |
| 20100083838 | FILTERING MEDIUM AND FILTER UNIT - A filtering medium is comprised of a non-woven fabric containing mainly an organic fiber, in which single fibers are fixed, wherein the non-woven fabric is constructed of a plurality of single fibers having different Young's moduli and finenesses, a non-crimped single fiber having a Young's modulus of 150 cN/dtex or more, and a fineness of 7 dtex or more is contained at a ratio of 20% or more of a total fiber mass, and single fibers are fixed with a resin having a glass transition temperature of 30° C. or more. | 04-08-2010 |
| 20100212503 | HOLLOW FIBER CARBON MEMBRANE AND METHOD FOR PRODUCTION THEREOF - A hollow fiber carbon membrane is provided, which has excellent gas separation performance, unbreakable flexibility and high utility. The hollow fiber carbon membrane comprises carbonized substance obtained by calcination of a hollow fiber-like material formed from a polyphenylene oxide derivative, and has an external diameter in the range of 0.08 mm to 0.25 mm. The polyphenylene oxide derivative substantially comprises repeating units represented by the following (a) and (b) (in the structural formula, R | 08-26-2010 |
| 20100224066 | Drying substances, preparation and use thereof - There is provided herein a dryer polymer substance including a hetero-phase polymer composition including two or more polymers wherein at least one of the two or more polymers include sulfonic groups, wherein the substance is adapted to pervaporate a fluid. The fluid may include water, water vapor or both. There is also provided herein a process for the preparation of a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both) the process includes mixing two or more polymers, wherein at least one of the two or more polymers may include groups which are adapted to be sulfonated, to produce a hetero-phase polymer composition and processing the polymer blend into a desired form. | 09-09-2010 |
| 20100269698 | THIN FILM GAS SEPARATION MEMBRANES - A gas separation membrane comprises a blend of polyethersulfone (PES) and aromatic polyimide polymers that may comprise a plurality of first repeating units of formula (I), | 10-28-2010 |
| 20100300294 | Gas Separation Module - A porous structure sealed at both ends for use in a gas separation module; and a method for separating components of a gas stream. | 12-02-2010 |
| 20100313758 | GAS ABSORPTION MEMBRANES AND THE MANUFACTURE THEREOF - A membrane is used for separating carbon dioxide from a gas phase. The membrane includes a substrate having micro-pores that extend through the substrate and a thin hydrophobic coating on one side of the substrate in which the pores of the substrate are substantially unobstructed by the coating so that the gas phase can penetrate the pores. The coating opposes or substantially resists a liquid solvent for absorbing carbon dioxide from penetrating the pores of the membrane from the side having the coating. The membrane may also be used for separating carbon dioxide in a flue gas of a coal fired power station. Further, the coating may be relatively inert to the liquid solvent compared to the substrate. | 12-16-2010 |
| 20110072973 | POLYBENZOXAZOLE MEMBRANES - The present invention discloses a blends of an aromatic polyimide polymer and a polymer containing aromatic sulfonic acid groups that can be converted into polybenzoxazole (PBO) membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO | 03-31-2011 |
| 20110107913 | CERAMIC TUBES COMPOSED OF TWO MATERIALS - The invention is a ceramic tube made of two parts. A first part of the tube is made of a sensitive material for facilitating oxygen separation in the membrane. The second part is made of a different material that does not react with CO2 and/or H2O. Accordingly, by means of this Invention, there is provided a ceramic tube that is stabilized and does not deteriorate upon exposure to CO2 and/or H2O at temperatures below the operating temperatures. | 05-12-2011 |
| 20110146492 | AIR SEPARATION MODULE FIBER MATERIAL FORMULATION - Hollow fiber membranes, such as those used in air separation modules, are generally made from solution spinning. Typically, solvent is present in the bore of the fiber for the spinning process. This solvent, in addition to the solvent already present in the polymer dope solution, may cause voids in the fiber material. By adding citric acid to the polymer dope material, these voids may be reduced or eliminated. | 06-23-2011 |
| 20110192281 | POLYMER BLENDS AND CARBONIZED POLYMER BLENDS - A composition includes a first polymer having monomers each containing an imidazole group, and a second polymer, the first and second polymers being a polymer blend. The first polymer, the second polymer, or both may be cross-linked. The carbonized composition, polymeric and carbon membranes (either in the form of a flat sheet or a hollow fiber) made from the composition are also described. The polymeric and carbon membranes can be used to separate and purify gases or liquids | 08-11-2011 |
| 20120060692 | MEMBRANE TUBE AND REACTOR HAVING A MEMBRANE TUBE - The invention relates to a diaphragm pipe for permeative separation of hydrogen from gas mixtures containing hydrogen, a method for the production thereof as well as a reactor comprising a diaphragm pipe, wherein the diaphragm pipe comprises a porous pipe (S) made of a sintered metal and a diaphragm (M) containing palladium or made of palladium enclosing the outer surface of the sintered metal pipe (5). The sintered metal pipe (S) has at least on one end a fitting (F) made of gasproof material, which is firmly connected with the sintered metal pipe (S). | 03-15-2012 |
| 20120192719 | HOLLOW-FIBER MEMBRANE CASTING SOLUTION ADDITIVE FOR RAPID SOLVENT REMOVAL - Hollow fiber membranes, such as those used in air separation modules, are generally made from solution spinning. Typically, solvent is present in the bore of the fiber for the spinning process. This solvent, in addition to the solvent already present in the polymer casting solution, may cause voids in the fiber material. By adding a polycarboxylic acid to the polymer casting material, these voids may be reduced or eliminated. | 08-02-2012 |
| 20120297984 | GAS SEPARATION MEMBRANE FOR DME PRODUCTION PROCESS - Disclosed herein is a gas separation membrane for a DEM production process, including: a porous support having a carbon dioxide permeability of more than 300 GPU (GPU=1×10 | 11-29-2012 |
| 20130000488 | Composite hollow ceramic fibers, precursors for, methods of making the same, and methods of using the same - A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic compound and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic compound. The fiber is made by extruding first and second suspensions of the first and second ceramic compounds in polymeric binders and solvent from a spinnerette and coagulating the nascent hollow fiber to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binder is burned off. Second, the sheath is densified and the second ceramic compound is sinter without fully sintering the first ceramic compound. The first ceramic compound has a melting point higher than that of the second ceramic compound. | 01-03-2013 |
| 20130025458 | HOLLOW CERAMIC FIBERS, PRECURSORS FOR MANUFACTURE THEREOF UTILIZING NANOPARTICLES, METHODS OF MAKING THE SAME, AND METHODS OF USING THE SAME - A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic material and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic material. The fiber is made by extruding a core suspension of particles of the first ceramic material, a polymeric binder, and a solvent and a sheath suspension of particles of the second ceramic material, a polymeric binder and a solvent, respectively, from a spinnerette and coagulating the nascent hollow fiber to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binders are burned off. Second, the sheath is densified and the second ceramic material is sintered without fully sintering the first ceramic material. The first ceramic material of the core suspension has a median particle size greater than that of the second ceramic material of the sheath suspension. | 01-31-2013 |
| 20130025459 | HOLLOW CERAMIC FIBERS, PRECURSORS FOR MANUFACTURE THEREOF UTILIZING PORE FORMERS, METHODS OF MAKING THE SAME, AND METHODS OF USING THE SAME - A composite hollow ceramic fiber includes a porous hollow core supporting a thin, dense sheath. The non-gas-tight core comprises a first ceramic material and an interconnecting network of pores. The gas-tight sheath comprises a second ceramic material. The fiber is made by extruding core and sheath suspensions from a spinnerette. The core suspension includes particles of the first ceramic material, a polymeric binder, a solvent, and a pore former material insoluble in the solvent. The sheath suspension includes particles of the second ceramic material, a polymeric binder and a solvent. The nascent hollow fiber is coagulated in a coagulant bath to effect phase inversion of the polymeric binders. The resultant green fiber is sintered in a two step process. First, the binders and pore former material are burned off. Second, the sheath is densified and the second ceramic material is sintered without fully sintering the core. | 01-31-2013 |
| 20130042763 | METHOD FOR POTTING CERAMIC CAPILLARY MEMBRANES - A modular element having a high-temperature stable main body, including at least one metallic or ceramic plate, which has at least one through-going aperture for the insertion of a ceramic capillary membrane and at least one potting in the form of a sufficiently gas-tight and high-temperature stable joint between the metallic or ceramic plate and the ceramic capillary membrane. The through-going aperture of the metallic or ceramic plate having an extension for accommodating the sufficiently gas-tight and high-temperature stable joint on at least one side of the metallic or ceramic plate. | 02-21-2013 |
| 20130174736 | Waterproof and Salt Repellant Media and Filter - A waterproof and salt repellant media for use in a gas turbine intake filter is provided. The media includes a first composite material layer having a polypropylene melt-blown layer and a polypropylene spun-bond layer, and a second composite material layer having a polyester spun-bond material coated with PTFE. | 07-11-2013 |
| 20130174737 | METHOD FOR FILTRATION OF GAS EFFLUENTS FROM AN INDUSTRIAL INSTALLATION - A membrane for a method for filtration of gas effluents from an industrial installation including a wall having an internal surface and an external surface, the wall having pores of variable dimensions in the radial direction and in the longitudinal direction of the wall. | 07-11-2013 |
| 20130255498 | POLYOLEFIN-COMPOSITE HOLLOW-FIBER MEMBRANE AND MANUFACTURING METHOD FOR SAME, AND HOLLOW-FIBER MEMBRANE MODULE - The present invention pertains to a polyolefin-composite hollow-fiber membrane and a manufacturing method for the same, said polyolefin-composite hollow-fiber membrane having: a homogenous membrane layer formed from polyolefins having a metal flow rate measured in accordance with JIS K7210 code D of 1.0 g/10 minutes, or less, and an Mw/Mn ratio of not more than 4.0; and a porous membrane layer which is formed from polyolefins having an Mw/Mn ratio of 8.0-12.0. The present invention also pertains to a hollow-fiber membrane module which is equipped with the polyolefin-composite hollow-fiber membrane. The present invention enables the provision of a polyolefin-composite hollow-fiber membrane, a manufacturing method for the same and a hollow-fiber membrane module; the polyolefin-composite hollow-fiber membrane has excellent solvent resistance and gas permeability, and when used in the deaeration of dissolved gas in a drug solution, can suppress leakage of the drug solution to a high degree, and can efficiently reduce the amount of dissolved gas. | 10-03-2013 |
| 20130263739 | Array of hollow fibers and a system and method of manufacturing same - An array of hollow fibers including a plurality of hollow fibers of a predetermined diameter configured to receive a gas having oxygen therein and transfer the oxygen to a fluid and/or transfer carbon dioxide in the fluid to a gas. The array is configured in a predetermined pattern having a predetermined packing density that is a fraction of a total cross-sectional area of the array occupied by the hollow fibers. | 10-10-2013 |
| 20130284023 | Asymmetric Nanotube Containing Membranes - This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation. | 10-31-2013 |
| 20140026756 | THIN FILM GAS SEPARATION MEMBRANES - A gas separation membrane comprises aromatic polyimide polymers that comprise a plurality of repeating units of formula (I) | 01-30-2014 |
| 20140230652 | DRYING SUBSTANCES, PREPARATION AND USE THEREOF - There is provided herein a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both), the polymer substance includes: a porous support member having a plurality of pores, wherein at least a portion of the pores are filled with a cross-linked co-polymer comprising (i) a cationic monomer and an anionic monomer, (ii) a zwitterionic monomer, or a combination thereof. The substance may include a membrane or a tube. There is further provided herein a process for the preparation of a dryer polymer substance adapted to pervaporate a fluid (such as water, water vapor or both), the process includes impregnating into at least a portion of the pores of a porous support member a solution which comprises: (i) a cationic monomer and an anionic monomer, (ii) a zwitterionic monomer, or a combination of (i) and (ii), graft co-polymerizing the anionic monomer and the cationic monomer and/or the zwitterionic monomer within at least a portion of the pores to form a co-polymer, and cross-linking the co-polymer, such that the pores of the support member are at least partially grafted with a cross-linked co-polymer bound to the support member. | 08-21-2014 |
| 20140360373 | AIR SEPARATION MODULE WITH REMOVABLE CORE - A module for an inert gas system has a housing that includes a first portion, a second portion removable from the first portion, at least one fluid inlet port, and at least one fluid outlet port. The module also includes a replaceable selectively permeable membrane for separating components of a gaseous fluid placed within the housing. | 12-11-2014 |
| 20150020685 | HOLLOW FIBER MEMBRANES AND METHODS FOR FORMING SAME - The invention provides improved hollow fiber membranes having at least two layers, and methods for forming the same. The methods include co-extruding a first composition, a second composition, and a third composition to form a dual layer hollow fiber membrane. The first composition includes a glassy polymer; the second composition includes a polysiloxane; and the third composition includes a bore fluid. The dual layer hollow fiber membranes include a first layer and a second layer, the first layer being a porous layer which includes the glassy polymer of the first composition, and the second layer being a polysiloxane layer which includes the polysiloxane of the second composition. | 01-22-2015 |
| 20150020686 | Heat Resistant Hydrogen Separation Membrane and Method for Manufacturing Same - The present invention relates to a hydrogen separation membrane which coats granular ceramic onto the surface of a porous metal support and which coats a hydrogen permeation metal thereon so as to inhibit diffusion between the support and a hydrogen separation layer, and to a method for manufacturing same. As a result, the metal support can be modularized with ease, the hydrogen permeation layer can be made thinner to increase the amount of hydrogen permeation, the use of a separation material can be minimized, and the hydrogen separation membrane can have higher competitiveness. | 01-22-2015 |
| 20150135957 | Organosiloxane Films for Gas Separations - A semipermeable gas separation membrane is plasma deposited from liquid organosiloxane monomer having at least three silicon atoms and an alpha hydrogen atom. The semipermeable membrane may be employed as a gas-selective membrane in combination with a porous substrate. | 05-21-2015 |
| 20150306549 | Organosiloxane Films for Gas Separations - A semipermeable gas separation membrane is plasma deposited from liquid organosiloxane monomer having at least three silicon atoms and an alpha hydrogen atom. The semipermeable membrane may be employed as a gas-selective membrane in combination with a porous substrate. | 10-29-2015 |
| 20160009407 | NITROGEN ENRICHED AIR SUPPLY SYSTEM AND AIRCRAFT | 01-14-2016 |
| 20160045858 | MEMBRANE MODULE CAPABLE OF OPERATION IN EXTREME TEMPERATURE ENVIRONMENTS - A module having polymeric gas-separation membranes is capable of operation in extreme temperature environments. In one embodiment, the module includes polymeric fiber membranes, a tubesheet for holding the membranes, and a sleeve encasing the membranes, all of which are made of materials having coefficients of thermal expansion which differ from each other by not more than about 10%. In another embodiment, the membranes, the tubesheet, and the sleeve are all made of materials having a glass transition temperature greater than a highest anticipated temperature of operation of the module. In another embodiment, the module includes a head, and a clamshell having multiple protrusions which engage corresponding grooves in the head and in at least two grooves formed in the tubesheet. | 02-18-2016 |
| 20160136558 | Article Containing Nanofiber Membrane for Bacterial Filtration - A sterilizing grade filter including at least two non-sterile nanofiber membranes positioned in a stacked configuration is provided. The nanofiber membranes have a bubble point from about 10 psi to about 50 psi, a thickness less than about 300 microns, and a mass/area less than about 20 g/m | 05-19-2016 |
| 20160151737 | Unit for Removing Contaminants from Hydrogen Gas and Isotopes of Hydrogen Gas with Features that Resist Damage from Repeating Thermal Cycles | 06-02-2016 |
| 20160177891 | FILTER ELEMENT, AIR CLEANER, AND METHODS | 06-23-2016 |
| 20170232401 | SEPARATION MEMBRANE STRUCTURE AND METHOD FOR MANUFACTURING SAME | 08-17-2017 |
| 20190143278 | MIXED MATRIX MEMBRANES FOR OLEFIN/PARAFFIN SEPARATION AND METHOD OF MAKING THEREOF | 05-16-2019 |
