| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 055524000 | With coating, impregnant, or bonding agent | 33 |
| 20080202087 | HONEYCOMB STRUCTURE - A honeycomb structure is provided that includes a plurality of pillar-shaped honeycomb fired bodies, each having a number of cells longitudinally disposed in parallel with one another with a cell wall therebetween. An adhesive layer is interposed between adjacent honeycomb fired bodies of the plurality of honeycomb fired bodies to combine the plurality of honeycomb fired bodies together, and a sealing material layer is formed on an outer peripheral face of the combined plurality of honeycomb fired bodies. At least two honeycomb fired bodies of the plurality of honeycomb fired bodies have an outer wall that forms a portion of the outer peripheral face of the combined plurality of honeycomb fired bodies. At least one of the outer walls has a protruding portion extending from a surface thereof, and the protruding portion is made from a same material as a material of the at least one outer wall. | 08-28-2008 |
| 20080245041 | FILTER WITH EPTFE AND METHOD OF FORMING - A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA. | 10-09-2008 |
| 20080314012 | Filter Elements - A ceramic filter element is formed from a flocculated slurry predominantly containing inorganic fibres, of 100-150 μm length and 1-5 μm thickness. The slurry also contains inorganic yarn in lengths of from 10 mm or greater, e.g. 10-150 mm and thickness 0.1-0.5 mm diameter. The slurry is formed in water with colloidal silica and starch added to flocculate the slurry. The flocculated slurry is then injected to a mould comprising an appropriately shaped mesh form, and water removed by vacuum, and the filter thus formed dried in an oven for 8-12 hours at 120° C. The addition of yarns, which may be glass or alumina mono or multifilament yarns, increases the shock resistance of the ceramic filter element produced. | 12-25-2008 |
| 20090044504 | Ozone-Decomposing Agent - An ozone-decomposing agent including a first iron compound and a second iron compound is provided. The second iron compound may have a spinel type structure. The first iron compound of the ozone-decomposing agent may include an oxide selected from Fe | 02-19-2009 |
| 20090094954 | Antifouling Composite Material - [Object] To provide a dustproof, antifouling, and highly durable composite material. | 04-16-2009 |
| 20090193775 | PLUGGED HONEYCOMB STRUCTURE - There is disclosed a plugged honeycomb structure in which cracks are not easily generated in partition walls during use as a DPF and during regeneration. A plugged honeycomb structure | 08-06-2009 |
| 20090199528 | MANUFACTURING METHOD OF FILTER MEDIA AVAILABLE AT MEDIUM AND HIGH TEMPERATURE EXHAUST GAS USING FOAM COATING TECHNOLOGY AND FILTER MEDIA MANUFACTURED THEREBY - Disclosed herein is a method of producing a filter medium for treating medium and high temperature exhaust gas using foam coating and a filter medium produced using the method. The filter medium has excellent heat resistance and heat contraction resistance, and exhibits partial dust collection efficiency of 99% or more by weight, total dust collection efficiency of 99.999% or more by weight, and high dust removal efficiency, for all dust particle sizes. Further, the filter media can be efficiently used to treat medium and high temperature exhaust gas because pores having an average pore size of 30 μm or less are uniformly distributed on the surface of the filter media. | 08-13-2009 |
| 20090235625 | FILTER AND ASSOCIATED METHOD - A filter includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided. | 09-24-2009 |
| 20090241496 | Process for Producing a Nanoporous Layer of Nanoparticles and Layer Thus Obtained - Process for producing at least one nanoporous layer of nanoparticles chosen from nanoparticles of a metal oxide, nanoparticles of metal oxides, and mixtures of said nanoparticles, on a surface of a substrate, in which at least one colloidal sol, in which said nanoparticles are dispersed and stabilized, is injected into a thermal plasma jet which sprays said nanoparticles onto said surface. | 10-01-2009 |
| 20090241497 | CHEMICAL FILTER AND METHOD FOR PRODUCING THE SAME - A chemical filter is obtained by pleating a nonwoven fabric, the nonwoven fabric being a spunlace nonwoven fabric prepared by causing fibers to be entangled by a spunlace method, and ion-exchange groups being introduced into the fibers by radiation graft polymerization. | 10-01-2009 |
| 20090320427 | CEMENT FOR PARTICLE FILTER - Jointing cement intended in particular for fastening together a plurality of filter blocks of a filtering body of an exhaust gas particle filter of an internal combustion engine of a motor vehicle, having a silicon carbide (SiC) content of between 30% and 90%. The cement according to the invention includes at least 0.05% and less than 5% of a thermosetting resin, the percentages being percentages by weight relative to the total weight of the thermosetting resin and the mineral material, apart from the possible water. | 12-31-2009 |
| 20100031618 | High dust holding capacity filter media - Provided is a method of forming a self supporting fibrous nonwoven filter media comprising dispersing glass fibers, crimped polymer fibers, and cellulosic fibers in a fluid dispersion. The dispersion is subjected to a moving forming wire to form a fibrous web. Binder is applied to the web. The web is dried and cured/melted and later pleated in a subsequent operation. Inclusion of crimped polymer fibers in filter media improves dust holding characteristics of the filter media. | 02-11-2010 |
| 20100031619 | Filter media including silicone and/or wax additive(s) - A method of improving filtration efficiency of a fibrous nonwoven filter media comprises providing a filter media and incorporating in the filter media one or more additives selected from the group consisting of silicone additives, wax additives, and mixtures thereof. The filter media comprises glass fibers, polymer fibers, and optionally binder. Inclusion of silicone and/or wax additive(s) in a filter media has surprisingly been found to increase filtration efficiency, for example, by 10-15%. | 02-11-2010 |
| 20100050583 | AMMONIA-FREE GASEOUS AIR FILTER - A filter for removing contaminants from air. The filter includes (a) a substrate that does not have any volatile ammonia on the surface thereof; (b) copper that has been impregnated onto the substrate; and (c) molybdenum and/or tungsten that has been impregnated onto the substrate. The filter can be made using an aqueous solution(s) that contains one or more of a first copper salt and a second salt that include a polynuclear anion that contains molybdenum, tungsten, or both. Because the metals can be impregnated onto the substrate surface without using an ammonium-based solution, the need to manage ammonia off-gassing is avoided. Further, no volatile ammonia would be present on the resulting substrate surface. | 03-04-2010 |
| 20100115900 | FLEXIBLE FIBROUS MATERIAL, POLLUTION CONTROL DEVICE, AND METHODS OF MAKING THE SAME - A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices. | 05-13-2010 |
| 20100122515 | POISON-FILTER MATERIAL AND PRODUCTION METHOD THEREOF - The poison-filter material of the invention includes a substrate and a metal oxide. The substrate includes numerous holes, and the metal oxide is adhered to a surface of the substrate and the holes. The method for producing the poison-filter material of the invention includes the following steps of sonicating and impregnating a substrate into a metallic salt aqueous solution; and calcining the substrate to form a metal oxide on a surface of the substrate and numerous holes of the substrate, such that the poison-filter material is produced. In the invention, the metallic salt aqueous solution is fully oscillated to impregnate the porous substrate, and metal oxide is formed on the surface and holes of the substrate after high-temperature calcination. Therefore, the adsorbent material of the invention can effectively adsorb noxious gas and lower penetrability of noxious gas. During the calcination process, the metallic salt aqueous solution of the invention does not generate harmful volatility solvent such as ammonia. Therefore, the invention can prevent the production process from polluting the environment, harming the health of operator, and reduces the cost for recycling harmful volatility solvents. | 05-20-2010 |
| 20100300054 | Activated Protective Fabric - Disclosed are fibrous activated materials that can remove and/or deactivate potentially dangerous airborne agents from a gas or air stream. Disclosed materials are multi-layer materials that include a fibrous nonwoven interceptor layer and an active layer immediately adjacent the interceptor layer. The interceptor layer is a fibrous membrane of very low basis weight and defines a relatively low porosity, and the active layer describes geometries, chemistries, etc. that can entrap and/or decontaminate compounds contained in an airstream passing through the material. Disclosed materials can be utilized in forming protective garments, face masks, and the like. | 12-02-2010 |
| 20110016839 | TRACKIFIED AIR FILTRATION MEDIA AND A SELF-SUPPORTING FILTER HAVING IMPROVED STIFFNESS AND FOLDABILITY - The present disclosure relates generally to a nonwoven filtration media comprising a bonded mix of different, discontinuous, thermoplastic resin fibers and optionally discontinuous cellulosic fibers. In some embodiments a tackifier is added to the nonwoven filtration media to provide a sticky or adhesive surface on the fibers. The nonwoven media has an advantageous combination of stiffness, foldability, efficiency and the ability to retain a fold. The nonwoven media can be thermally bonded during the production process. The advantageous combination of mechanical properties allow the disclosed nonwoven media to accept and retain folds and pleats better than some conventional filtration materials while the mix of different fibers provides desirable filtration properties. | 01-27-2011 |
| 20110041471 | ELECTRET WEBS WITH CHARGE-ENHANCING ADDITIVES - Electret webs are presented which include a blend of a thermoplastic resin and a charge additive. The charge additives include ester-substituted and amide-substituted trianilino triazine materials. The webs prepared from the blends may be in the form of films or non-woven fibrous webs. Non-woven microfiber webs are useful as filtration media. | 02-24-2011 |
| 20110126501 | COMPOSITION FOR PREVENTION OF INFLUENZA VIRAL INFECTION COMPRISING TANNIC ACID, AIR FILTER COMPRISING THE SAME AND AIR CLEANING DEVICE COMPRISING THE FILTER - Disclosed are a composition for the prophylaxis of influenza viral infection comprising tannic acid, an air filter coated with the same, and an air cleaner comprising the air filter. Having high inhibitory activity against influenza virus, the composition comprising tannic acid can be applied to the prevention of influenza viral infection. Also, the filter coated with the composition can remove influenza virus from the air so that it can be employed in an air cleaner for the prophylaxis of influenza viral infection. | 06-02-2011 |
| 20110154791 | ALLERGEN INHIBITOR, ALLERGEN-INHIBITING PRODUCT, ALLERGEN INHIBITION METHOD, AND USE AS ALLERGEN INHIBITOR - The present invention provides an allergen inhibitor which effectively prevents allergens from reacting with specific antibodies, mitigates the allergic symptoms or prevents appearance thereof, and is less likely to cause unpredictable discoloration and discoloration under usual conditions. The allergen inhibitor of the present invention comprises an allergen-inhibiting compound including a linear polymer having at least one of substituents represented by the formulas (1) to (3) at a side chain. Thus, the allergen inhibitor of the present invention shows excellent allergen-inhibiting effects. | 06-30-2011 |
| 20120186212 | EXHAUST GAS PURIFYING FILTER - There is provided an exhaust gas purifying filter, which includes an inflow surface into which exhaust gas including particulate matter flows, an exhaust surface from which purified gas is exhausted, and a filter substrate which is constructed of a porous body, the filter substrate including a porous partition and a gas passage which is enclosed by the porous partition, a porous film which includes silicon carbide is provided on a surface of the porous partition, and in a pore diameter distribution of the porous film, pores with the pore diameter of 0.01 μm or more and 3.0 μm or less are 70% or more of total volume of the pores, and pores with the pore diameter of 0.01 μm or more and 0.3 μm or less are 5% or more and 90% or less of total volume of the pores. | 07-26-2012 |
| 20130255212 | HONEYCOMB STRUCTURE - In the present invention, a honeycomb structure includes a joined honeycomb segment body in which a plurality of honeycomb segments are integrally joined by mutual joining surfaces via a joining material layer, and has a configuration in which a plurality of cells to become through channels of a fluid are arranged in parallel with one another along a central axis direction. The joining material layer contains, as aggregates, inorganic particles, and acicular crystal particles having a shot content ratio smaller than 10 mass %, and the acicular crystal particles include 80 mass % or more of acicular crystal particles having an average length of 20 to 500 μm in a long axis direction of the acicular crystal particles. As the inorganic particles, silicon carbide, cordierite, alumina, zirconia, yttria or the like can be used, and as natural acicular minerals, sepiolite, wollastonite, palygorskite or the like can be used. | 10-03-2013 |
| 20130255213 | POROUS MATERIAL, MANUFACTURING METHOD OF THE SAME, AND HONEYCOMB STRUCTURE - There are disclosed a porous material having excellent heat resisting properties and an excellent resistance to heat shock. A porous material contains aggregates and an amorphous binding agent to bind the aggregates to one another in a state where pores are formed among the aggregates, the binding agent contains a rare earth element, the amorphous binding agent preferably contains magnesium, aluminum, silicon, the rare earth element and oxygen, and the amorphous binding agent preferably contains 8.0 to 15.0 mass % of MgO, 30.0 to 60.0 mass % of Al | 10-03-2013 |
| 20130283744 | OIL REPELLENT WATERPROOF AIR-PERMEABLE FILTER AND ITS PRODUCTION PROCESS - To provide an oil repellent waterproof air-permeable filter of which environmental burden is small and which has an excellent liquid repellency to ketone solvents and ester solvents, and its production process. An oil repellent waterproof air-permeable filter comprising a substrate having a continuous porous structure and a coating material covering the substrate and containing a fluoropolymer having a perfluoroalkyl group, wherein the fluoropolymer has constituent units based on an acrylate having a chlorine atom at an α position and a C | 10-31-2013 |
| 20140123613 | AIR FILTRATION MEDIA AND PROCESSES FOR MANUFACTURING THE SAME - Nonwoven filter media with an alpha value greater than about 13 generally includes a plurality of large diameter fibers, a plurality of ultrafine diameter fibers, and a binder. The large diameter fibers have an average diameter of greater than about 6 microns and make up more than about 60% by weight of the fiber web. The ultrafine diameter fibers have an average diameter of less than about 1 micron. Also disclosed is a method of manufacturing a filter media. | 05-08-2014 |
| 20140165520 | FINE PARTICLE COLLECTING FILTER - A fine particle collecting filter includes a honeycomb structure in which a plurality of honeycomb segments are integrally joined by a joining material, and has a constitution where an exhaust gas allowed to flow from an inlet end surface into cells passes partition walls, and then flows out from an outlet end surface to the outsides of the cells. In the partition walls, SiC which is an aggregate is bound by Si which is a binding agent, at least one of an average open diameter of the pores of an inlet side of the exhaust gas passing the partition wall and an average open diameter of the pores of an outlet side is from 0.1 to 5 μm, an average pore diameter of the whole partition wall is from 10 to 30 μm, and a thermal conductivity of the partition walls at room temperature is from 50 to 80 W/mK. | 06-19-2014 |
| 20150013295 | BLENDED NONWOVEN FABRIC, FILTER MEDIUM, AND FILTER UNIT - The present invention provides a filter medium causing a low pressure drop. The present invention is a filter medium including a porous fluororesin membrane and an air-permeable support member laminated on at least one surface of the porous fluororesin membrane. In this filter medium, the air-permeable support member is a blended nonwoven fabric containing: core-sheath fibers (A) having a polyester core and a polyolefin sheath; polyester fibers (B); and core-sheath fibers (C) having a polyester core and a copolymerized polyester sheath. | 01-15-2015 |
| 20150089911 | AIR-PERMEABLE FILM IMPARTED WITH OIL REPELLENCY - Disclosed is an air-permeable film imparted with oil repellency, including a porous body having a surface coated with an oil-repellent agent. The oil-repellent agent contains a linear fluorine-containing hydrocarbon group represented by —R | 04-02-2015 |
| 20150107207 | Nanofiber Coating, Method for its Production, and Filter Medium with such a Coating - A filter medium, in particular for air filtration, is provided with a substrate and at least one nanofiber layer applied onto the substrate. The nanofiber layer has cavities in or between the nanofibers. In a method for producing the nanofiber layer, a spinning solution for electrospinning from a polymer solution by a spinning electrode and a counter electrode is provided, wherein electrical voltage is applied to the spinning solution and air is passed through the spinning solution. The nanofibers produced by the spinning electrode are deposited onto the substrate that is moved past the counter electrode. | 04-23-2015 |
| 20160074789 | FILTRATION MEDIA, MEDIA PACK ASSEMBLIES, AND METHODS - The technology disclosed herein relates to a filter media having a fiber matrix and a binder distributed throughout the fiber matrix. Conductive particles are impregnated in the binder matrix and a flame retardant distributed throughout the fiber matrix and the binder matrix. The filter media can be incorporated into various types of media pack assemblies for air filtration including coiled media, pleated media, and stacked filter media. A method is also disclosed where conductive particles are distributed in a binder and a fiber matrix is impregnated with the binder. A solution containing at least 5% flame retardant solids is formed and the fiber matrix is saturated in the solution. The saturated, impregnated fiber matrix is dried and cured. | 03-17-2016 |
| 20160167291 | Process For The Production Of A Structured Film | 06-16-2016 |
| 20160175748 | MULTI-LAYERED NANOFIBER FILTER HAVING IMPROVED HEAT RESISTANCE, AND METHOD FOR MANUFACTURING SAME | 06-23-2016 |
