Entries |
Document | Title | Date |
20080237116 | Porous PTFE Materials and Articles Produced Therefrom - Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described. | 10-02-2008 |
20090026128 | High Performance Shaped Articles, Methods Of Making, And Uses Thereof - Essentially at most two-dimensional shaped article (A) comprising at least one polymer composition (C) comprising at least one high glass transition temperature sulfone polymer (P). Methods of making it and uses thereof. | 01-29-2009 |
20090127186 | Separation Membrane for Use in Treatment of Liquid Comprising Aromatic Ether Polymer Hydrophilized with Hydrophilizing Agent - [Problems] To provide a novel hydrophilized separation membrane for use in the treatment of a liquid, which comprises an aromatic ether polymer, is less likely to be degraded by sterilization with a high energy ray and has a controlled pore size and a high water permeability. | 05-21-2009 |
20100051535 | CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTER FOR FILTRATION - To provide a crystalline polymer microporous membrane including: a microstructure on the side of one surface of the membrane, the microstructure being composed of series of nodules interconnected with one another by fibrils, wherein the average pore diameter at the one surface of the membrane is larger than the average pore diameter at another surface of the membrane, and the average pore diameter continuously changes from the one surface toward the other surface, and wherein the nodules have an aspect ratio (length/width) of 25 or greater. | 03-04-2010 |
20100065490 | ION-PERMEABLE MEMBRANE AND THE PRODUCTION THEREOF - A method for producing an ion-permeable membrane which has at least one profiled surface includes contacting a shaping element with an uncured polymer film which contains at least one polymer, impressing the shaping element onto the polymer film and generating a regular pattern of identically or differently structured elevations and/or recesses on the polymer film. | 03-18-2010 |
20100282667 | Method for Producing a Support Part and Filter Element - The invention relates to a method for producing a support part, in particular, for use with a filter element. Said support part is shaped in the form of a support tube ( | 11-11-2010 |
20110056883 | Filter Segment for Use in a Filtration Device and a Circular Segment for Holding a Filter Segment - The invention refers to a filter segment for use in a filtration device, especially a rotating filter for filtering liquids with a frame element ( | 03-10-2011 |
20110203989 | DISC FILTER SECTOR AND SECTOR COMPONENT - A disc filter sector and a disc filter sector component which are made of a plastic composite containing a matrix plastic and a fibre reinforcement. The fibre reinforcement used is a natural fibre, such as a wood fibre. | 08-25-2011 |
20110259812 | FILTER ELEMENT AND SEAL THEREFOR - A filter cell element for use in a housing to form a filtering assembly. The filter element has a media pack having an interior and a separator element having a passage therein for radial fluid communication between the media pack interior and an edge of the media pack. An overmold seal at the media pack edge seals the media pack to the separator element. Methods of making the filter element and methods of using are also disclosed. | 10-27-2011 |
20120152821 | FINE FIBER FILTER MEDIA AND PROCESSES - Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications. | 06-21-2012 |
20120228212 | Asymmetric Carbon Block System and Method - Some embodiments of the invention provide an asymmetric activated carbon block comprising at least a first element and a second element. In some embodiments, the first element can comprise at least two constituents and the second element can comprise at least two constituents. In some embodiments, at least a portion of the first element can be positioned within the second element and at least one of the at least two constituents of the first element can differ from at least one of the at least two constituents of the second element. In some embodiments, the first element and the second element can be asymmetric with respect to a structural property. Some embodiments include part of the first element being located immediately adjacent the second element. | 09-13-2012 |
20120255898 | 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. | 10-11-2012 |
20120312733 | LIQUID FILTER CONSTRUCTION FOR FREEZING ENVIRONMENTS - A liquid filter construction comprising a filter housing is disclosed. The filter housing contains a filter element for filtration of liquids using a urea aqueous solution. A compressible element is positioned within the filter housing, the compressible element comprising an enclosure containing a gas-filled volume. This compressible element compresses in response to the generation of pressure from freezing of liquid within the filtration housing. The compression of the compressible element thereby avoids damage to the filter element, the filter housing, and adjacent equipment. | 12-13-2012 |
20130062275 | PROCESS FOR PRODUCTION OF HONEYCOMB STRUCTURE, HONEYCOMB STRUCTURE, AND PARTICULATE FILTER - A method of manufacturing a honeycomb structure comprises a step of forming a molded article by molding a raw material containing a ceramic powder and a pore-forming agent; and a step of manufacturing a honeycomb structure by sintering the molded article, wherein the pore-forming agent is powder formed of a material that disappears at a sintering temperature or less where the molded article is sintered, the powder is obtained by mixing a small particle size powder and a large particle size powder, a median particle size of which a ratio of a cumulative mass with respect to a total mass of the small particle size powder is 50% is 5 to 20 μm, a median particle size of which a ratio of a cumulative mass with respect to a total mass of the large particle size powder is 50% is 30 μm or more, and a ninety-percentage particle size of which a ratio of a cumulative mass with respect to a total mass of the large particle size powder is 90% is 80 μm or less. | 03-14-2013 |
20130180910 | Rotary-wing shaped fiber filter material - A rotary-wing shaped fiber filter material includes a fiber bundle ( | 07-18-2013 |
20130199990 | APPARATUS AND METHOD FOR SECURING UNDERDRAIN FILTER BLOCK - An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, a bottom wall extending between the pair of side walls, and a transverse wall extending from one of the pair of side walls to the other of the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber positioned between the bottom wall and the transverse wall and at least one of the bottom wall and said side walls contains an opening. | 08-08-2013 |
20130206681 | Interlocking Frame Assembly System and Method - A filter assembly comprises a frame and a filter media formed over the frame. The frame comprises a first frame component comprising a particular first end portion, and a second frame component comprising a certain first end portion. The particular first end portion of the first frame component interlocks with the certain first end portion of the second frame component. A filter assembly method comprises forming a frame by interlocking a particular first end of a first frame component with a certain first end of a second frame component, and forming filter media over the frame. | 08-15-2013 |
20130213880 | SEPARATION MEMBRANE, SEPARATION MEMBRANE ELEMENT AND SEPARATION MEMBRANE PRODUCTION METHOD - 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 μm to 2000 μm, 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. | 08-22-2013 |
20130233787 | COMPOSITE BIOCOMPATIBLE ARTICLES MADE FROM DOPED POLYSULPHONE FILAMENTS AND A PROCESS FOR MAKING THE SAME - This invention relates to articles of high permeability and flux. Particularly useful in dialysis made from filaments produced from a composition of polysulphones and Vitamin ETPGS. This invention also includes a process for producing such articles. | 09-12-2013 |
20130270177 | Dehydration Processes Using Membranes with Hydrophobic Coating - Processes for removing water from organic compounds, especially polar compounds such as alcohols. The processes include a membrane-based dehydration step, using a membrane that has a dioxole-based polymer selective layer or the like and a hydrophilic selective layer, and can operate even when the stream to be treated has a high water content, such as 10 wt % or more. The processes are particularly useful for dehydrating ethanol. | 10-17-2013 |
20130284663 | REVERSE OSMOSIS MEMBRANE INCLUDING ULTRA-HYDROPHILIC PASSIVATION LAYER AND METHOD OF MANUFACTURING THE SAME - A reverse osmosis separation membrane includes a porous support, a separation active layer formed on the supporting layer, and a ultra hydrophilic layer formed on the separation active layer. The ultra-hydrophilic layer includes a complex metal oxide including at least one metal element selected from the group consisting of Ti(IV), Zr(IV), Sn(IV) and Al(III), and Si, and an organic compound containing a hydrophilic group making a physical or chemical bond with Ti(IV), Zr(IV), Sn(IV) or Al(III) among the complex metal oxide. A method of manufacturing the reverse osmosis separation membrane also is provided. A reverse osmosis membrane including a single coating layer and having an improved durability, chlorine-resistance and antifouling properties may be provided. | 10-31-2013 |
20140001114 | Fluid Filters | 01-02-2014 |
20140097134 | SOLUTION PHASE PROCESSING OF POLYARYLENE SULFIDE - Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide. | 04-10-2014 |
20140151287 | SCREEN AND METHOD OF MAKING THE SAME - A screen includes a framework of a first material having one or more openings therethrough defining a fluidic filter, and a substance of a second material positioned within the one or more openings in the framework and configured to be removable from the framework during an electrochemical reaction. | 06-05-2014 |
20140231337 | FILTER MATERIAL - Provided is a filter material which can enhance the particle holding capacity of a filter while keeping the particle capture efficiency thereof and which thus ensures a prolonged filter life. The present invention pertains to a filter material comprising a spun lace nonwoven fabric which contains a thermoplastic synthetic filament nonwoven fabric as the intermediate layer. | 08-21-2014 |
20140284267 | ABRASION-PROOF FILTRATION MEMBRANE AND METHOD OF PRODUCING SAID MEMBRANE - A filtration membrane ( | 09-25-2014 |
20140319047 | FILTRATION MATERIAL AND METHOD FOR FABRICATING THE SAME - 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. | 10-30-2014 |
20140346106 | METAL SUBSTRATE GASKET WITH FILTER FUNCTION AND MANUFACTURING METHOD THEREFOR - Provided is a metal substrate gasket with a filter function that is easy to machine/assemble and is capable of reducing the number of parts as well as cost. To achieve said purpose, the metal substrate gasket with filter function, which is provided with a filter section in which holes have been drilled on a portion of the flat surface of the metal substrate and is provided with a sealing section around the filter section, is characterized in that in the sealing section, respective elastic rubber seals cover the two surfaces of the metal substrate in the thickness direction. The metal substrate gasket is also characterized in that a sealing bead section is formed in the metal substrate in the sealing section. | 11-27-2014 |
20150060353 | FILTER UNIT FOR A CARTRIDGE - The invention relates to a filter unit ( | 03-05-2015 |
20150060354 | SEPARATION MEMBRANE SUPPORT, METHOD FOR PRODUCING SAME, AND SEPARATION MEMBRANE AND FLUID SEPARATION ELEMENT USING SEPARATION MEMBRANE SUPPORT - A separation membrane support includes a nonwoven fabric and has excellent membrane formability that achieves a high and stable yield when the separation membrane support supports various separation membranes, having excellent processability when a fluid separation element is produced, and having excellent mechanical strength. The nonwoven fabric has a boiling water shrinkage of −0.2 to 2.0% in the length direction (longitudinal direction) after treatment in boiling water for 5 minutes. | 03-05-2015 |
20150136687 | Potting Method - Disclosed herein are aspects and embodiments of filtration membrane modules including porous membranes and methods and structures associated with potting ends of the porous membranes in the membrane modules. In one example, there is provided a method of forming a filtration module. The method comprises securing a portion of a porous membrane in a pre-pot, positioning at least a portion of the pre-pot in a potting mold, introducing a pot forming substance into the potting mold, the pot forming substance surrounding at least a portion of the pre-pot and at least a portion of the porous membrane, curing the second pot forming substance to form a membrane pot, and separating the membrane pot from the potting mold. | 05-21-2015 |
20150336039 | Polyethylene Fiber, Its Use And Process For Its Manufacture - The present invention relates to a novel polyethylene polymer fiber obtainable by melt-spinning of a polymer, the use of the fiber, a process for the manufacture of the fiber, and products comprising said fiber. | 11-26-2015 |
20160016123 | MEMBRANE CARTRIDGE AND MEMBRANE-CARTRIDGE PRODUCTION METHOD - A low-cost membrane cartridge and a low-cost method for producing a membrane cartridge, in which fatigue durability can be increased with a simple structure, are provided by focusing on a bonding position of the filtration membrane onto the filtration plate. The membrane cartridge includes a filtration membrane disposed on both faces of a filtration plate made of a thermoplastic resin, such that a joining portion provided at the periphery of the filtration membrane is joined to the filtration plate. At least an inner edge portion of the joining portion has a downward inclination with respect to the surface of the filtration plate inside of the inner edge portion at an angle in a range of 10 to 45 degrees toward an outer peripheral edge of the filtration membrane. The joining portion is pressed and welded using a heating plate or an ultrasonic horn having such an inclined surface. | 01-21-2016 |
20160051911 | RETAINER FOR FILTER, AND FILTER USING SAME - The present invention provides a filter retainer capable of suppressing the retention of a filtered fluid. The filter retainer is a filter retainer ( | 02-25-2016 |
20160129401 | COMPOSITE SEMIPERMEABLE MEMBRANE - In order to provide a composite semipermeable membrane which combines strength and water permeability, the present invention provides a composite semipermeable membrane including: a supporting membrane including a substrate and a porous support; and a separation functional layer disposed on the porous support, in which the substrate has a weight A per unit area, a portion of the porous support which is located within the substrate has a weight B per unit area, and a sum of the weight A and the weight B, (A+B), is 30 to 100 g/m | 05-12-2016 |
20160136584 | FILTER MEDIUM FOR LIQUID FILTER AND METHOD FOR MANUFACTURING SAME - Provided are filter media for liquid filters and a method of manufacturing the same, in which a thin filter layer is formed and the content of nanofibers weighs light, by laminating a low weight nanofiber web on a porous nonwoven fabric, and thus a less differential pressure is applied before and after filtering, to thereby increase a pass flow rate. The filter medium includes: a porous support that plays a strength support role; and a nanofiber web that is laminated on one side of the porous support and is made of nanofibers of a polymer material, in which the nanofiber web comprises fine pores of a three-dimensional structure, through which a liquid to be treated passes, wherein content of the nanofibers is less than 5 gsm. | 05-19-2016 |
20170232403 | FILTRATION MODULE AND FILTRATION APPARATUS | 08-17-2017 |
20180021737 | FILTRATION FILTER | 01-25-2018 |
20190143276 | SELECTIVE INTERFACIAL MITIGATION OF GRAPHENE DEFECTS | 05-16-2019 |