Class / Patent application number | Description | Number of patent applications / Date published |
210496000 | Bound, fused or matted, e.g., porous shapes, sponges, etc. | 32 |
20080264854 | Corrugated Fluid Treatment Packs and Methods of Making Them - Corrugated fluid treatment packs and methods of making corrugated fluid treatment packs are disclosed. The fluid treatment packs may comprise a non-woven fibrous structure and/or porous membrane having a tubular configuration and a longitudinal axis, the fibrous structure and/or porous membrane being corrugated to define at least one crest, at least one trough, and at least one corrugation, each corrugation including first and second webs, the first and second webs extending into one another along a crest or a trough. The crests, troughs, and corrugations may include webs may which extend circumferentially or helically. | 10-30-2008 |
20080283465 | LOW COEFFICIENT OF THERMAL EXPANSION BONDING SYSTEM FOR A HIGH POROSITY CERAMIC BODY AND METHODS OF MANUFACTURE - A porous ceramic body comprises a plurality of fibers and a bonding system bonding a portion of at least two fibers of the plurality of fibers. The plurality of fibers has a first coefficient of thermal expansion. The bonding system has a second coefficient of thermal expansion lower than the first coefficient of thermal expansion. In some embodiments, when the plurality of fibers and the bonding system are combined the resulting porous ceramic body has a third coefficient of thermal expansion which is at least about 10% less than the first coefficient of thermal expansion. | 11-20-2008 |
20090039012 | Hollow Fiber Membrane and Method for Manufacturing The Same - The present invention relates to a through-one-end water collection type hollow fiber membrane and a method for manufacturing the same. According to the present invention, an internal sealing part is formed in the hollow part of the membrane at its free end. The internal sealing part supports an external sealing part surrounding the external surface of the free end such that the durability of the whole sealing part might be improved. | 02-12-2009 |
20090145840 | BLOOD CELL SEPARATION MEMBRANE AND BLOOD RETENTION TOOL USING THE SAME - The present invention provides a blood cell separation membrane for separating blood into serum or plasma and blood cells while preventing hemolysis of the blood cells. Such a blood cell separation membrane can be obtained by impregnating a porous membrane for separating blood cells from blood supplied thereto with a solution containing a hydrophobic aminocarboxylic acid, a protein derived from silk, Tris, TES, ε-aminohexanoic acid, tranexanmic acid, or heparin and then drying the membrane. | 06-11-2009 |
20090173687 | Extruded Porous Substrate and Products Using The Same - A highly porous substrate is provided using an extrusion system. More particularly, the present invention enables the production of a highly porous substrate. Depending on the particular mixture, the present invention enables substrate porosities of about 60% to about 90%, and enables advantages at other porosities, as well. The extrusion system enables the use of a wide variety of fibers and additives, and is adaptable to a wide variety of operating environments and applications. Fibers, which have an aspect ratio greater than 1, are selected according to substrate requirements, and are typically mixed with binders, pore-formers, extrusion aids, and fluid to form a homogeneous extrudable mass. The homogeneous mass is extruded into a green substrate. The more volatile material is preferentially removed from the green substrate, which allows the fibers to form interconnected networks. As the curing process continues, fiber to fiber bonds are formed to produce a structure having a substantially open pore network. The resulting porous substrate is useful in many applications, for example, as a substrate for a filter or catalyst host, or catalytic converter. | 07-09-2009 |
20090261033 | FLUID TREATMENT ELEMENT - A hollow cylindrical fluid treatment element ( | 10-22-2009 |
20090321348 | METHOD FOR COMBINING HOLLOW FIBRES INTO A BUNDLE AND HOLLOW FIBRE BUNDLE PRODUCED BY SAID METHOD - The invention relates to a method for the combining of hollow fibers to form a bundle, wherein after a batch-wise taking of continuously manufactured hollow fibers onto a reel apparatus the hollow fibers placed together to form bundles are wound around by means of a winding film and are subsequently welded. Such hollow fibers represent intermediate products in the manufacture of dialyzers for use in hemodialysis. | 12-31-2009 |
20100000938 | HEADER FOR MODULE OF HOLLOW FIBER MEMBRANES AND METHOD OF POTTING HOLLOW FIBERS - Hollow fiber membranes are potted by injecting a liquid material into a substantially closed cavity ( | 01-07-2010 |
20100012576 | NANOPOROUS CARBONACEOUS MEMBRANES AND RELATED METHODS - Disclosed are nanoporous carbonaceous membranes and related devices, along with associated methods. | 01-21-2010 |
20100032367 | FLEXIBLE RETICULATED FOAM FLUID TREATMENT MEDIA AND METHOD OF PREPARATION - Flexible reticulated foam fluid treatment media and a method of making same. The flexible fluid treatment media includes a flexible reticulated foam substrate, a binder coating the flexible reticulated foam substrate and a plurality of particles compressed into the binder to form a durable interconnected layer of particles that are bound together and collectively fixed to the substrate. The flexible reticulated foam fluid treatment media is flexible and easily cut and shaped without damaging the particle layer to form a wide variety of shapes and sizes that lend themselves to use within an equally wide variety of pipes, conduits, ducts, skimmers, filter housings and fluid treatment devices. The method used to create the fluid treatment reticulated foam media includes the steps of coating a soft reticulated foam substrate with a binder, subjecting the coated substrate to compression forces, allowing the coated substrate surface to become tacky, coating the binder with a plurality of metal particles or metal oxides or activated carbon particles or intimate mixtures of these particles combined together, subjecting the coated substrate to compression forces using a roller or by passing the coated substrate between a pair of adjacent rollers, removing any excess metal particles, and curing the binder by air drying using ambient air or heated air, and removing any excess particles. | 02-11-2010 |
20100038306 | ASYMMETRIC MEMBRANES FOR USE IN NANOFILTRATION - Improved integrally skinned asymmetric membranes for organic solvent nanofiltration, and their methods of preparation and use are disclosed. Membranes are formed from polyimides by phase inversion and are then crosslinked by addition of amine crosslinking agents that react with the imide groups of the polyimide, creating amide bonds. These stabilise the membranes and allow solvent nanofiltration to be maintained even in the solvents from which the membranes were formed by phase phase inversion. | 02-18-2010 |
20100038307 | FILTRATION MEDIA FOR LIQUID FILTRATION - Filtration media including at least one layer of nanofibers having average diameters less than 1000 nanometers with optional scrim layer(s) are disclosed for filtering particulate matter in liquid. The media achieve flow rates of at least 0.055 L/min/cm | 02-18-2010 |
20100072127 | SEPARATION MEMBRANE COMPLEX, AND METHOD FOR MANUFACTURING THE SEPARATION MEMBRANE COMPLEX - A separation membrane complex | 03-25-2010 |
20100140163 | Flexible free-standing ultrathin or thin protein membrane, its fabrication method and application - [Purpose] A purpose of this invention is to provide a robust and flexible free-standing ultrathin (nano) or thin pure protein membrane which enables a rapid and simple separation (or condensation) of relatively small (M.W.=ca. 1,000 Da) molecules. | 06-10-2010 |
20100237004 | Filter and method of manufacture - A filter comprises a pad ( | 09-23-2010 |
20100237005 | Filter pad and method of manufacture - A filter pad comprises a pad ( | 09-23-2010 |
20110011792 | POLYMER FIBER MATERIAL, METHOD OF PRODUCING THE SAME, AND FILTER FOR FILTERING FLUID - There is provided a hybrid polymer fiber material containing a non-electrolytic polymer and an electrolytic polymer and having properties and advantages of both polymers, and provided a method of producing the hybrid polymer fiber material, and provided a filter made of the hybrid polymer fiber material. A voltage is applied between a nozzle | 01-20-2011 |
20110210062 | METHOD OF MAKING A FILTER MEDIA WITH AN ENRICHED BINDER - Water filtration media having a charged material affixed directly to binder material used in the fabrication of the filter media. A microbiological interception enhancing agent is added to the binder directly. The media having a charged material and a microbiological interception enhancing agent both affixed directly on a binder material is then combined with core filter media and prepared as a filtration media. A filter is prepared from the treated filter media. | 09-01-2011 |
20110266213 | ULTRAFINE CONTINUOUS FIBROUS CERAMIC FILTER AND METHOD OF MANUFACTURING SAME - An ultrafine continuous fibrous ceramic filter, which comprises a filtering layer of a fibrous porous body, wherein the fibrous porous body comprises continuous ultrafine fibers of metal oxide which are randomly arranged and layered, and powdery nano-alumina incorporated into the ultrafine fibers or coated thereon, the ultrafine fibers being obtained by electrospinning a spinning solution comprising a metal oxide precursor sol-gel solution, and optionally, a polymer resin, and sintering the electrospun fibers, in which the ultrafine fibers have an average diameter of 10˜500 nm, and the fibrous porous body has a pore size of maximum frequency ranging from 0.05 to 2 μm, exhibits high filtration efficiency at a high flow rate, and can be regenerated. | 11-03-2011 |
20110290714 | MONOLITHIC ORGANIC POROUS BODY, MONOLITHIC ORGANIC POROUS ION EXCHANGER, AND PROCESS FOR PRODUCING THE MONOLITHIC ORGANIC POROUS BODY AND THE MONOLITHIC ORGANIC POROUS ION EXCHANGER - A monolithic organic porous body includes a continuous macropore structure that includes cellular macropores that overlap to form openings having an average diameter of 20 to 200 μm, the monolithic organic porous body having a thickness of 1 mm or more and a total pore volume of 0.5 to 5 ml/g, an area of a skeleton observed within an SEM image of a section of the continuous macropore structure (in a dry state) being 25 to 50%. A monolithic ion exchanger is produced by introducing an ion-exchange group into the monolithic organic porous body. The monolithic organic porous body and the monolithic ion exchanger are chemically stable, have high mechanical strength, and ensure a low pressure loss when fluid passes through. The monolithic organic porous body and the monolithic ion exchanger may be used as an adsorbent having a large adsorption capacity or an ion exchanger having a large ion-exchange capacity. | 12-01-2011 |
20120175298 | HIGH EFFICIENCY FILTER - A high efficiency filter comprising at least one nonwoven web layer is provided. The nonwoven web layer comprises a plurality of first fibers, a plurality of second fibers, and a binder. The first fibers comprise a water non-dispersible synthetic polymer and have a different configuration and/or composition than the second fibers. The first fibers have a length of less than 25 millimeters and a minimum transverse dimension of less than 5 microns. The nonwoven web layer comprises at least 15 weight percent of the first fibers, at least 10 weight percent of the second fibers, and at least 1 weight percent of the binder. The high efficiency filter has a filtration efficiency of 85% (DIN EN 1822) or higher. Also disclosed is a process for producing the first fibers and the multicomponent fibers from which they are derived. | 07-12-2012 |
20130126420 | CERAMIC FILTER - A ceramic filter is provided with a porous substrate | 05-23-2013 |
20130140228 | FILTER MATERIAL FOR FLUIDS AND METHOD FOR PRODUCING A FILTER MATERIAL - The invention relates to a filter material ( | 06-06-2013 |
20130248438 | FILTER AND METHOD OF MANUFACTURE - A filter comprising a pad of non-woven fibrous material, the pad having a substantially solid edge of consolidated pad material which has been softened and subsequently hardened. | 09-26-2013 |
20130248439 | FILTER MEDIUM, FILTERING DEVICE USING FILTER MEDIUM, AND FILTER MEDIUM MANUFACTURING METHOD - A filter medium includes: a core yarn and a binder yarn twisted together, at least one of the core yarn or the binder yarn being weldable; and a filament yarn being fuzzy and weldable, the filament yarn being welded to at least one of the core yarn or the binder yarn while being placed between the core yarn and the binder yarn as twisted together. A filtering device for filtering a liquid to be treated with a filter medium layer including includes the filter medium. A method of manufacturing the filter medium is also disclosed. | 09-26-2013 |
20130270179 | POLYIMIDE MEMBRANES - There is provided a membrane that includes a plurality of polyimide fibers encased in a fluoropolymer sheath, the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable non-woven mat. A method of manufacturing the membrane is provided. | 10-17-2013 |
20140034570 | Porous Medium Screen - Certain aspects and embodiments of the present invention are directed to a porous medium screen that can be disposed in a wellbore through a fluid-producing formation. The porous medium screen can include a porous medium and a retaining structure. The porous medium can be a material having one or more pores. The one or more pores can be adapted to allow a fluid to flow through the porous medium and to prevent one or more particles from flowing through the porous medium. The retaining structure can be adapted to retain the porous medium in a position circumferentially surrounding a section of a tubing string and to prevent expansion of the porous medium. The retaining structure can include a shroud and one or more stoppers. The shroud can be adapted to circumferentially surround the porous medium. Each stopper can be adapted to circumferentially surround the section of a tubing string at an edge of the porous medium. | 02-06-2014 |
20140042081 | Filter for Removing Substances from Blood or from Blood Derivatives, and a Method for Obtaining It - A filter for removing substances, including leukocytes and platelets by way of non-limiting example, from whole blood or from blood derivatives, the filter includes a casing containing a layered filter element, at least one layer of this latter being coated with polyurethane; this polyurethane has a number average molecular weight between 10,000 and 20,000 Dalton. A method for forming the layered filter element for a filter such as mentioned above, in which at least one layer of this filter element is impregnated with polyurethane by immersing it in a container of a mixture in which the polyurethane is present. This mixture includes a solution in which the polyurethane is dissolved in a polar solvent such as water. | 02-13-2014 |
20140110332 | Composite Membrane - The present invention is intended to provide a composite membrane excellent in both durability and moisture permeability. | 04-24-2014 |
20150008178 | HONEYCOMB SHAPED POROUS CERAMIC BODY, MANUFACTURING METHOD FOR SAME, AND HONEYCOMB SHAPED CERAMIC SEPARATION MEMBRANE STRUCTURE - There are disclosed a honeycomb shaped porous ceramic body to manufacture a honeycomb shaped ceramic separation membrane structure in which a separation performance does not deteriorate under a higher operation pressure than before, a manufacturing method for the porous body, and a honeycomb shaped ceramic separation membrane structure. The honeycomb shaped ceramic separation membrane structure | 01-08-2015 |
20160096142 | METHOD OF MAKING HOLLOW FIBER MEMBRANE MODULES WITH A CURABLE COMPOSITION AND MODULES MADE THEREFROM - A method of making hollow fiber filtration modules including potting an end portion of a plurality of hollow fiber membranes with a multi-pack, solvent-free curable composition. The curable composition includes a Michael donor, a Michael acceptor, and a Michael reaction catalyst. | 04-07-2016 |
20160107106 | PRINTING ENGINEERED FLUID FILTERS - A fluid filter produced by additive manufacturing that includes a filter body having an entrance face for fluid entrance, an exit face for fluid exit, at least one pore in the fluid filter body extending from the entrance face to the exit face, and at least one pocket in the pore. The fluid containing the particles flows through the pore from the entrance face to the exit face and the particles are directed into the pocket where the particles become trapped in the pocket. | 04-21-2016 |