Entries |
Document | Title | Date |
20080202086 | HONEYCOMB FILTER - A honeycomb filter includes a plurality of honeycomb fired bodies each having a longitudinal direction and a plurality of cells which are divided by cell walls and which extend in the longitudinal direction in substantially parallel with each other, each of the cells having one end sealed; and an adhesive material binding the plurality of honeycomb fired bodies. The plurality of honeycomb fired bodies includes outer peripheral honeycomb fired bodies each having a first outer wall and positioned at an outermost periphery of the honeycomb filter; and inner honeycomb fired bodies surrounded by the outer peripheral honeycomb fired bodies. Each of the inner honeycomb fired bodies has a second outer wall thinner than the first outer wall. | 08-28-2008 |
20080236122 | HONEYCOMB STRUCTURE, METHOD OF MANUFACTURING HONEYCOMB STRUCTURE, EXHAUST GAS TREATING APPARATUS, AND METHOD OF MANUFACTURING EXHAUST GAS TREATING APPARATUS - A honeycomb structure including plural cells with holes arranged in a longitudinal direction, a peripheral wall, and a defective portion formed on the peripheral wall that is mended with a mending material that is in a color different from the color of the peripheral wall. Also, a method is provided for manufacturing a honeycomb structure including plural cells with holes arranged in a longitudinal direction and a peripheral wall which method involves mending a defective portion formed on the peripheral wall of the honeycomb structure with a mending material in a color different from the color of the peripheral wall. | 10-02-2008 |
20080236123 | Honeycomb Ceramic Particulate Filtration Substrate, a Particulate Filter and a Filtration System as Well as Production Methods Thereof - A honeycomb ceramic filtration substrate, a filter made of the said substrate and a filter system made of the said filter and their production methods are published in the present invention. The said substrates are extruded with a paste comprising (by portion): SiC: 1; Clay: 0.05-0.5; Flour: 0.1-0.35; grease: 0.025-0.05; Water: 0.2-0.35. The said sintered substrate has a honeycomb structure with cells density ranging from 4˜62 cells/cm | 10-02-2008 |
20080256913 | SYSTEMS FOR PURIFYING A GAS MIXTURE COMPRISING TWO GASES USING GRANULATED POROUS GLASS - A method of separating a gas mixture comprising two gases includes the following steps. A packed bed of granulated porous glass and a gas mixture including first and second gases are provided. The gas mixture is allowed to flow into the packed bed, thereby preferentially adsorbing at least some of the first gas on the granulated porous glass to yield a purified gas having a second gas concentration of the second gas higher than that of the gas mixture. The purified gas is allowed to flow out of the packed bed. The first and second gases have boiling points or sublimation points at one atmosphere that are least 10°K apart. | 10-23-2008 |
20080276585 | Filtration Plate For a Particle Filter - A filtration plate ( | 11-13-2008 |
20080276586 | HONEYCOMB FILTER AND METHOD FOR MANUFACTURING THE SAME - A honeycomb filter includes a honeycomb body including first and second cells extending along its longitudinal direction. The first cells have upstream opening ends and downstream closing ends opposite to the upstream opening ends along the longitudinal direction. The second cells have upstream closed ends and downstream opening ends opposite to the upstream closed ends along the longitudinal direction. The honeycomb body further includes cell walls intervening between the first cells and the second cells to define the first cells and second cells and extending between the upstream opening ends and the downstream closing ends and between the upstream closed ends and the downstream opening ends. A porosity of the cell walls is about 75% to about 95%. Ceramic particles are provided in the cell wall. A concentration of the ceramic particles in the wall decreases from the first cells to the second cells. | 11-13-2008 |
20080289307 | HONEYCOMB STRUCTURE, METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE, AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb structure includes a plurality of cells, an inorganic fiber, and an inorganic matter. The plurality of cells are disposed substantially in parallel with one another in a longitudinal direction with a cell wall therebetween. The inorganic matter forms a fixed portion in which said inorganic fibers are fixed to one another, part of the fixed portion having a fissure. | 11-27-2008 |
20080307760 | Low shrinkage plugging mixture for ceramic filter, plugged honeycomb filter and method of manufacturing same - Disclosed are plugging mixtures for forming a ceramic honeycomb wall flow filter. The plugging mixtures exhibit a reduced percentage of volumetric shrinkage during the drying process and generally comprise an inorganic ceramic powder batch composition; an organic binder; a liquid vehicle; and a non-foaming volume transformation agent. Also disclosed are methods for forming plugged ceramic wall flow filters from such plugging mixtures and honeycomb articles produced therefrom. | 12-18-2008 |
20090000260 | Fibrous Cordierite Materials - A method of manufacturing a fibrous material includes mixing at least two cordierite precursor materials to form a mixture. One or more of the at least two cordierite precursor materials is in a form of a fiber and the mixture includes about 43% to about 51% by weight SiO | 01-01-2009 |
20090007532 | Composite ceramic body, method of manufacturing the same and ceramic filter assembly - A method for manufacturing a composite ceramic body with occluding a plurality of pores that are open at its surface of a porous ceramic body, the method includes the steps of impregnating a polysilazane solution including polysilazane having a repetition structure of fundamental units of at least one of [—Si(H)(C | 01-08-2009 |
20090025349 | CERAMIC HONEYCOMB FILTER - A ceramic honeycomb filter comprising a honeycomb structure having a large number of flow paths partitioned by porous cell walls; and plugs formed in the flow paths alternately on the exhaust gas inlet and outlet sides; the thickness W (mm) and permeability κ (μm | 01-29-2009 |
20090049815 | Thin-walled porous ceramic wall-flow filter - A thin-walled porous ceramic wall-flow filter is disclosed. The filter produces a relatively lower pressure drop coupled with relatively high initial filtration efficiency (FE | 02-26-2009 |
20090113863 | Low Expansion Cement Compositions for Ceramic Monoliths - Disclosed are cement compositions for applying to honeycomb substrates. The cement compositions contain an inorganic powder batch composition; a binder; a liquid vehicle; and an elastic modulus reducing additive. The elastic modulus reducing additive can contain a ceramic fiber or a monohydrated alumina. The cement compositions are well suited for forming ceramic diesel particulate wall flow filters. Also disclosed herein are end plugged wall flow filters that include the disclosed cement compositions and methods for the manufacture thereof. | 05-07-2009 |
20090139193 | WALL-FLOW HONEYCOMB FILTER HAVING HIGH STORAGE CAPACITY AND LOW BACKPRESSURE - A wall-flow honeycomb filter comprising a ceramic monolith having a plurality of porous walls formed therein. The plurality of porous walls define a plurality of inlet cells and a plurality of outlet cells extending between an inlet end face and an outlet end face of the monolith. The inlet cells are open at the inlet end face and plugged at or near the outlet end face. The outlet cells are open at the outlet end face and plugged at or near the inlet end face. The monolith has a ratio of a combined cross-sectional area of the inlet cells to a combined cross-sectional area of the outlet cells greater than 1. The monolith has at least one inlet cell cluster which contains an N×M group of inlet cells, N and M being integers greater than 1, each inlet cell cluster consisting of a plurality of inlet cells separated by inlet cluster walls. | 06-04-2009 |
20090158698 | Method for Manufacturing a Ceramic Filter Element - In a method for manufacturing a ceramic filter element for an exhaust gas filter for internal combustion engines, a combustible non-ceramic support web provided with flow channel is impregnated with ceramic slurry. Subsequently, the support web, formed in a desired geometric shape, is fired until the support web is combusted and a rigid filter body is produced. Before impregnating the support web, a combustible sealing bead is applied such onto the support web that the flow channels are closed alternatingly by the sealing bead. | 06-25-2009 |
20090173050 | POROUS BETA-SIC-CONTAINING CERAMIC MOLDED ARTICLE COMPRISING AN ALUMINUM OXIDE COATING, AND METHOD FOR THE PRODUCTION THEREOF - The invention concerns a process for the production of a porous β-SiC-bearing ceramic molded body that includes an aluminum oxide layer at the surface of the pores and passages of the porous β-SiC-bearing ceramic molded body. The invention further concerns a porous β-SiC-bearing ceramic molded body which has pores of a mean pore size in the range of between 0.1 urn and 50 μm and an aluminum oxide layer at the surface of the open pores and passages. | 07-09-2009 |
20090241495 | PARTICULATE FILTER - Disclosed is a particulate filter | 10-01-2009 |
20090301047 | METHOD FOR SELECTING A GAS FILTERING STRUCTURE - A method for selecting a filtering structure for a gas laden with particulates, said structure comprising a filtering part formed from a porous ceramic material and comprising at least one, and preferably a plurality, of porous walls, said method being characterized in that, starting from a first image of the surface of the wall, a processing operation is carried out on said first image comprising a morphological erosion by a structuring element in such a manner as to obtain a second characteristic image of the regularity and of the uniformity of the microstructure of said wall. | 12-10-2009 |
20090301048 | Filter for Removing Particles from a Gas Stream and Method for its Manufacture - A filter for removing particles from a gas stream has a filter pad with a coating which contains at least one of the following substances: (a) at least one aluminum oxide selected from alpha-, gamma-, delta- and theta-aluminum oxide, (b) hydrous aluminum oxide which is doped with silicon dioxide, at least one oxide of a metal of the 3 | 12-10-2009 |
20100011726 | CERAMIC HONEYCOMB FILTER AND ITS PRODUCTION METHOD - A ceramic honeycomb filter comprising a honeycomb structure having large numbers of flow paths partitioned by porous cell walls, and plugs alternately formed in the flow paths on the exhaust-gas-inlet and outlet sides, the area ratio of pores opening at the cell wall surfaces being 20% or more, porous, cross-linked structures being formed by heat-resistant particles introduced together with a gas into penetrating holes constituted by communicating pores in the cell walls, such that they clog the penetrating holes, and the cross-linked structures being formed more on the exhaust-gas-outlet side of the ceramic honeycomb filter than on the exhaust-gas-inlet side. | 01-21-2010 |
20100037576 | PROCESS FOR PRODUCING MICRON AND SUBMICRON FIBERS AND NONWOVEN WEBS BY MELT BLOWING - This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web. | 02-18-2010 |
20100058725 | CERAMIC HONEYCOMB FILTER AND ITS PRODUCTION METHOD - A ceramic honeycomb filter comprising a honeycomb structure having large numbers of flow paths partitioned by porous cell walls, and plugs alternately formed in the flow paths on the exhaust-gas-inlet and outlet sides, the outlet-side plugs having porosity of 65% or less, and the upstream-side end surfaces of the outlet-side plugs having surface roughness Ra of 13-50 μm. | 03-11-2010 |
20100071328 | METHOD FOR MAKING A SIC BASED CERAMIC POROUS BODY - The invention relates to a process for fabrication of a porous refractory ceramic product made from SiC, by heat treatment and sintering at high temperature, starting from a fraction of fine particles of SiC and from a fraction of larger-sized particles of SiC, said process being characterized in that, in a step preliminary to the heat treatment and to the sintering at high temperature, the finest particles of SiC are agglomerated then, in a second step, the granules thus obtained are added to the SiC powder with particles of larger size. | 03-25-2010 |
20100107583 | CERAMIC SINTERED BODY AND CERAMIC FILTER - It is to provide a ceramic sintered body and a ceramic filter having a long-term stability which can prevent cracks from occurring due to the breakage of ceramic particles when thermal stress is applied in regeneration process and the like, and can prevent catalyst carried from deteriorating when regeneration treatment is conducted repeatedly. | 05-06-2010 |
20100115899 | Ceramic Filter Comprising Clay and Process for Preparing Thereof - The present invention relates to a ceramic filter comprising clay and a process for preparing the same. More specifically, the present invention relates to the ceramic filter, including wave- shaped ceramic paper and plate-shaped paper, having improved efficiency and performance that may optimize the process of coating and calcining inorganic binder by forming an outer wall thereon, using clay, and thus increase insulation effect and mechanical strength represented by the clay layer, and the process for preparing thereof. | 05-13-2010 |
20100126132 | High-Strength Low-Microcracked Ceramic Honeycombs And Methods Therefor - A low-microcracked porous cordierite honeycomb ceramic particulate filter having a high strength in combination with a very low pressure drop, a very high filtration efficiency, and a high thermal shock resistance. Little or no microcracking, a fine median pore diameter, and a narrow pore size distribution contribute to high strength. A thin channel wall, high wall permeability, and narrow pore size distribution, contribute to low pressure drop. A fine pore diameter and narrow pore size distribution with a minimum of coarse pores contribute to high filtration efficiency. A high strain tolerance, MOR/E, contributes to high thermal shock resistance. Particulate filters disclosed herein can be useful as a hot gas particulate filter, and particularly as an internal combustion engine exhaust gas particulate filter, such as an exhaust gas filter for a gasoline direct injection engine. | 05-27-2010 |
20100126133 | Coated Particulate Filter And Method - A particulate filter is provided having a filter body with at least one porous wall, and a porous coating on the wall, the coating having a median pore diameter less than 20 microns and a coating pore size deviation of less than 3 times the coating median pore diameter, and the coating having an average thickness of less than 50 microns. A method of manufacturing a particulate filter is also disclosed which includes providing a filter body with at least one porous wall, and depositing particles onto the wall, the particles having a mean particle diameter of less than about 30 microns. | 05-27-2010 |
20100132323 | FILETER ELEMENT PRODUCED BY EXTRUSION FOR FILTERING EXHAUST GASES OF A DIESEL INTERNAL COMBUSTION ENGINE - A filter element for a soot particle filter includes a blank which is designed, during extrusion, specifically not to be round, so that, in response to subsequent heat treatment, the different shrinkage measurements in the radial direction become equalized, and a filter element that has a circular cross section is produced. | 06-03-2010 |
20100139226 | CERAMIC NANOFIBERS FOR LIQUID OR GAS FILTRATION AND OTHER HIGH TEMPERATURE (> 1000 .degree.C) APPLICATIONS - In accordance with the invention there are devices and processes for making ceramic nanofiber mats and ceramic filters for use in high temperature and in corrosive environments. The process for forming a ceramic filter can include electrospinning a preceramic polymer solution into a preceramic polymer fiber having a diameter from about 10 nm to about 1 micron and forming a preceramic polymer fiber web from the preceramic polymer fiber onto a collector. The process can also include pyrolyzing the preceramic polymer fiber web to form a ceramic nanofiber mat having a diameter less than the diameter of the preceramic polymer fiber, the ceramic nanofiber mat comprising one or more of an oxide ceramic and a non-oxide ceramic such that the ceramic fiber mat can withstand temperature greater than about 1000° C. | 06-10-2010 |
20100146922 | Wound Wire Filter Elements - A cylindrical wound wire filter with an inner bore, suitable for use with an airbag inflator, has at least two different outer diameters and/or at least two different inner diameters. Wires in adjacent layers can be bonded together by adhesive or brazing, or have a sheet-like material therebetween, such as a ceramic filter paper. | 06-17-2010 |
20100180562 | PROCESS FOR PREPARATION OF SILICON CARBIDE SEGMENT FOR HONEYCOMB CERAMIC FILTER - Disclosed herein is a method for preparing a silicon carbide segment for a honeycomb ceramic filter as a diesel particulate filter (DPF) by conducting drying, perforating, plugging, and sintering processes for an extruded body cut into a segment having a predetermined size, wherein a sealant, which will melt and adhere to corners of cells in the sintering process, to seal the cell corners, is applied to partition walls of the segment at opposite ends of the segment in the plugging process. | 07-22-2010 |
20100205920 | ADHESIVES WITH THEMAL CONDUCTIVITY ENHANCED BY MIXED SILVER FILLERS - Continuous ceramic (e.g., silicon carbide) nanofibers ( | 08-19-2010 |
20100205921 | CORDIERITE-BASED CERAMIC HONEYCOMB FILTER AND ITS PRODUCTION METHOD - A cordierite-based ceramic honeycomb filter comprising a honeycomb structure having a large number of flow paths partitioned by porous cell walls, and plugs alternately formed in said flow paths on the exhaust-gas-inlet side or the exhaust-gas-outlet side for permitting an exhaust gas to pass through said porous cell walls to remove particulate matter from the exhaust gas, said porous cell walls having porosity of 45-58%, an average pore size of 15-30 μm, the volume of pores having pore sizes exceeding 50 μm being more than 10% and 25% or less of the total pore volume, the volume of pores having pore sizes of 100 μm or more being 1-8% of the total pore volume, the volume of pores having pore sizes of less than 10 μm being 3-10% of the total pore volume, and said pores having a pore size distribution deviation σ [=log(D20)−log(D80)] of 0.6 or less, wherein D20 represents a pore size (μm) at a pore volume corresponding to 20% of the total pore volume, and D80 represents a pore size (μm) at a pore volume corresponding to 80% of the total pore volume, both in a curve representing the relation between the pore size and the cumulative pore volume, and D8008-19-2010 | |
20100218472 | Ceramic Structures And Methods Of Making Ceramic Structures - A method of firing a green structure to produce a ceramic structure may comprise heating a firing environment during a first stage of firing of a green structure over a first timed temperature cycle having an average ramp rate sufficient to substantially complete burnout of organic material prior to initiation of clay dehydration proximate a core of the ceramic structure. The method may further comprise heating the firing environment during a second stage of the firing over a second timed temperature cycle having an average ramp rate that is faster than the average ramp rate of the first timed temperature cycle. | 09-02-2010 |
20100218473 | SILICON CARBIDE POROUS BODY - There is provided a silicon carbide porous article containing silicon carbide particles as an aggregate and an oxide as a bonding material. The silicon carbide particles are bonded together in a state that pores are held among the silicon carbide particles, and an additive amount of the oxide is 0.5 g/m | 09-02-2010 |
20100242426 | CERAMIC HONEYCOMB STRUCTURE - There is disclosed a ceramic honeycomb structure which is not easily damaged and is excellent in durability even in a case where irregular canning conditions such as an overload and an offset load are generated. The ceramic honeycomb structure has a cell tilt angle of 0.5° or more and 35° or less and a substantially elliptic or oblong sectional shape vertical to a central axis direction. | 09-30-2010 |
20100257830 | PARTIALLY PLUG-LESS DPF - There is provided a ceramic filter capable of controlling extraordinary rise of the internal temperature upon regeneration by reducing an amount of deposited soot (particulates) by increasing a passage flow rate in the through-cells and realizing improvement of the regeneration limit and correspondence of PM emission and a method for manufacturing a ceramic filter. A plurality of circulation holes | 10-14-2010 |
20100293910 | Single crystal silicon carbaide nanowire, method of preparation thereof, and filter comprising the same - Single-crystal silicon carbide nanowires and a method for producing the nanowires are provided. The single-crystal silicon carbide nanowires have a very high aspect ratio and can be used for the fabrication of nanoelectronic devices, including electron gun emitters and MEMS probe tips, for use in a variety of displays and analyzers. Further provided is a filter comprising the nanowires. The filter is applied to systems for filtering vehicle engine exhaust gases to achieve improved filtering performance and increased lifetime. | 11-25-2010 |
20100300053 | CERAMIC HONEYCOMB STRUCTURES - Ceramic honeycomb structures may include a mullite phase and a tialite phase, and methods for manufacturing ceramic honeycomb structures may include making ceramic honeycomb structures including a mullite phase and a tialite phase. Ceramic honeycomb structures may include andalusite, and methods for manufacturing ceramic honeycomb structures may include using andalusite and making ceramic honeycomb structures including andalusite. | 12-02-2010 |
20100319309 | HONEYCOMB STRUCTURAL BODY AND MANUFACTURING METHOD THEREOF - A honeycomb structural body including a ceramic block having a flat shape and comprising a plurality of honeycomb units, a sealing material layer bonding the honeycomb units and comprising a sealing material paste, and a peripheral sealing material layer formed on a peripheral portion of the ceramic block. The flat shape has a cross-section which is bisected by an axis, the sealing material layer forms an angle diagonal with respect to the axis of the flat shape, the sealing material layer has end portions abutting against the peripheral sealing layer at a diagonal angle, and each of the honeycomb units has through holes extending in a longitudinal direction of the ceramic block and a partition wall portion between the through holes. | 12-23-2010 |
20100326029 | Permeable Material, Articles made therefrom and method of manufacture - The invention is directed to a honeycomb comprising cordierite and beta-spudomene, the honeycomb a having total porosity of greater than 30% and a mean pore diameter of less than 5 μm. The honeycomb is made from a mixture of activated kaolin and a mineral selected from the group consisting of lithium fluorhectorite, lithium hydroxyhectorite and mixtures thereof. In one embodiment up to 20 wt % SiO2, based on the total weight of the kaolin and minerals (fluarhectorite, hydroxyhectorite) is added and mixed therein prior to the formation of the green body. In another embodiment the amount of added SiO2 is up to 10 wt %. In one embodiment the total porosity is greater than 50% and the mean pore diameter is less than 5 μm. | 12-30-2010 |
20110192127 | STAINLESS STEEL FOR FILTER APPLICATIONS - A filter comprising a porous sintered stainless steel is provided. The filter includes 10-30% chromium, 5-25% nickel, 0.5-3% manganese; 1-4% silicon, and 0-3% molybdenum with the remainder being iron and inevitable impurities. The sintered steel has a density less than 80% of full density. The use of a stainless steel powder for the preparation of a filter having improved permeability at high temperatures also is described. | 08-11-2011 |
20110203242 | HONEYCOMB STRUCTURE - A honeycomb structure wherein the thickness of each partition wall is 50.8 μm inclusive to 161.5 μm exclusive, the cell density is 15.5 to 62.0 cells/cm | 08-25-2011 |
20110209451 | NONWOVEN FABRIC FOR EXHAUST-GAS TREATMENT, EXHAUST-GAS PURIFICATION DEVICE AND METHOD FOR PRODUCING A NONWOVEN FABRIC FOR EXHAUST-GAS TREATMENT - A nonwoven fabric for exhaust-gas treatment includes a multiplicity of metallic filaments having at least two types of different contours of the metallic filaments. An exhaust-gas purification device includes a channel structure through which exhaust gas can at least partially flow. The channel structure is made at least partially with such a nonwoven fabric. A method for producing a nonwoven fabric for exhaust-gas treatment is also provided. | 09-01-2011 |
20110265439 | HONEYCOMB STRUCTURE - A honeycomb structure includes a ceramic block, a coating layer and at least one of the bonding layer and the coating layer. The ceramic block includes a plurality of honeycomb units that are bonded together and that have a plurality of cells partitioned by cell walls using a bonding layer. The coating layer is provided on an outer peripheral portion of the ceramic block. The at least one of the bonding layer and the coating layer includes bubble marks having a diameter in a range of approximately 100 μm to approximately 300 μm and includes no bubble marks having a size exceeding approximately 300 μm. | 11-03-2011 |
20110283670 | Method for Producing a Ceramic Filter Element and Filter Element - In a method for producing a ceramic filter element for an exhaust gas filter for an internal combustion engine or a catalyst support, a combustible non-ceramic support web is used and holes or recesses are introduced into the non-ceramic support web at defined locations. | 11-24-2011 |
20120023879 | CERAMIC HONEYCOMB STRUCTURE AND ITS PRODUCTION METHOD - A ceramic honeycomb structure having a large number of flow paths defined by porous cell walls; said porous cell walls being composed of cordierite crystals, mullite crystals, corundum crystals and/or spinel crystals; the percentage of the X-ray diffraction intensity of the cordierite crystals being 72% or more and less than 85%, the percentage of the X-ray diffraction intensity of the mullite crystals being 15-25%, and the percentage of the total X-ray diffraction intensity of the corundum crystals and the spinel crystals being 5% or less, per the total X-ray diffraction intensity of these crystals; said porous cell walls having a true density of 2.55-2.70 g/cm | 02-02-2012 |
20120031061 | Honeycomb Manufacturing Method Using Ground Nut Shells And Honeycomb Body Produced Thereby - A method of manufacturing a honeycomb body is disclosed having the steps of mixing inorganic source materials, a nut shell pore former, and forming aids to form a plasticized batch, wherein the nut shell pore former has a particle size distribution with 20 μm≦d | 02-09-2012 |
20120031062 | HONEYCOMB STRUCTURAL BODY - An object of the present invention is to provide a honeycomb structural body which is low in pressure loss and can prolong a period up to a regenerating process. The present invention is directed to a columnar honeycomb structural body comprising a large number of through holes placed in parallel with one another in a length direction with wall portion interposed therebetween, wherein: each of the through holes has one of ends sealed; one end face of the through hole differs in opening area from the other end face thereof; a ceramic material which constitutes the wall portion has an average pore diameter in a range from 5 to 30 μm; and the rate of capacity of micro pores each having a pore diameter two or more times larger than the average pore diameter is set to 30% or less of the capacity of the entire micro pores. | 02-09-2012 |
20120073255 | PROCESS FOR PRODUCING ALUMINUM TITANATE-BASED CERAMICS BODY - The invention is to provide a process for producing an aluminum titanate-based ceramics body, wherein, as a regenerated starting material, a fired body recovered in a production process for an aluminum titanate-based ceramics body is used and the aluminum titanate-based ceramics body excellent in a mechanical strength and in a thermal characteristics such as low thermal expansion and heat resistance can be obtained. The invention provides a process for producing an aluminum titanate-based ceramics body using a fired ceramics body recovered in a production process for an aluminum titanate-based ceramics body, comprising the following steps: a step of preparing a pulverized product having a median particle diameter of 100 μm or less from the fired ceramics body; a step of preparing a regenerated clay containing the pulverized product and water; a step of shaping the regenerated clay to form a shaped body; and a step of firing the shaped body. | 03-29-2012 |
20120096821 | PROCESS FOR PRODUCING ALUMINUM TITANATE CERAMICS BODY - The invention is to provide a process for producing an aluminum titanate-based ceramics body, wherein a regenerated unfired starting material recovered in a production process for an aluminum titanate-based ceramics body is used and a regenerated clay is easy to prepare and an aluminum titanate-based ceramics body excellent in a mechanical strength and in a thermal characteristics such as low thermal expansion and heat resistance can be obtained. The invention is a process for producing an aluminum titanate-based ceramics body using an unfired regenerated starting material recovered in a production process for an aluminum titanate-based ceramics body, comprising the following steps: a step of preparing a pulverized material having a diameter of 1 mm or less from the unfired regenerated starting material; a step of preparing a regenerated clay containing the pulverized material and water; a step of shaping the regenerated clay to form a shaped body; and a step of firing the shaped body. | 04-26-2012 |
20120096822 | FUSED GRAINS OF OXIDES COMPRISING AL, TI, SI AND CERAMIC PRODUCTS COMPRISING SUCH GRAINS - Fused particles containing, by weight percent: more than 15% but less than 55% of Al | 04-26-2012 |
20120110965 | CEMENT CONTAINING MULTI-MODAL FIBERS FOR MAKING THERMAL SHOCK RESISTANT CERAMIC HONEYCOMB STRUCTURES - A ceramic honeycomb structure comprised of at least two separate smaller ceramic honeycombs that have been adhered together by a cement comprised of inorganic fibers and a binding phase wherein the smaller honey-combs and fibers are bonded together by the binding phase which is comprised of an silicate, aluminate or alumino-silicate. The fibers have a multi-modal size distribution in which some fibers have lengths of up to 1000 micons and other fibers have lengths in excess of 1 mm. The cement composition may be made in the absence of other inorganic and organic additives while achieving a shear thinning cement, for example, by mixing oppositely charged inorganic binders in water together so as to make a useful cement composition for applying to the smaller honeycombs to be cemented. | 05-10-2012 |
20120124953 | MOLTEN OXIDE GRAINS INCLUDING AL AND TI, AND CERAMIC MATERIALS COMPRISING SAID GRAINS - Fused particles having the following chemical composition, as a percentage by weight on the basis of the oxides:
| 05-24-2012 |
20120186211 | HONEYCOMB FILTER FOR PURIFYING EXHAUST GASES, ADHESIVE, COATING MATERIAL, AND MANUFACTURING METHOD OF HONEYCOMB FILTER FOR PURIFYING EXHAUST GASES - A honeycomb filter includes a ceramic laminated body including columnar porous ceramic members and an adhesive layer combining the columnar porous ceramic members with one another. The columnar porous ceramic members each have a partition wall and through holes, the through holes extend in parallel with one another in a length direction of the columnar porous ceramic members, the partition wall separates the through holes and filters particulates in an exhaust gas, and the adhesive layer includes an inorganic binder, an inorganic fiber, inorganic particles and an inorganic balloon. | 07-26-2012 |
20120198805 | PROCESS FOR PRODUCING ALUMINUM TITANATE-BASED CERAMICS, AND ALUMINUM TITANATE-BASED CERAMICS - The present invention is a process for producing an aluminum titanate ceramics, comprising firing a starting material mixture containing a titanium source powder and an aluminum source powder, wherein a content of niobium, expressed on the oxide basis, is not less than 0.2 parts by mass and not more than 2.5 parts by mass in 100 parts by mass of the starting material mixture. | 08-09-2012 |
20120240541 | HONEYCOMB FILTER AND MANUFACTURING METHOD OF THE SAME - There is provided a honeycomb filter including: a honeycomb base material; plugged portions; and a porous collecting layer disposed on the surface of the partition wall parent material in at least the remaining cells. The collecting layer has a constitution in which a plurality of particles combine or intertwine with one another, and the collecting layer includes fibrous fiber particles as the plurality of particles, and includes the particles having an average fiber diameter of 0.1 to 15 μm and an average aspect ratio of 3 or larger. An open area ratio of the surface of the collecting layer is 20% or larger. | 09-27-2012 |
20120240542 | HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME - There is provided a honeycomb structure including a honeycomb base material including a porous partition wall parent material; plugged portions; and a porous collecting layer disposed on the surface of the partition wall parent material in the remaining cells. A melting point of a material constituting the collecting layer is higher than that of a material constituting the partition wall parent material, a pore surface area per unit volume of the collecting layer is 2.0 times or more a pore surface area per unit volume of the partition wall parent material, and a thickness of a portion of the collecting layer which penetrates into pores of the partition wall parent material is 6% or smaller of that of each of partition walls including the partition wall parent material and the collecting layer. | 09-27-2012 |
20120311985 | PROCESS FOR PRODUCING AN ALUMINUM TITANATE-BASED CERAMICS - The present invention is a process for producing an aluminum titanate-based ceramics comprising a step of firing a starting material mixture containing a titanium source powder, an aluminum source powder, and a copper source. | 12-13-2012 |
20120317945 | EXHAUST GAS PURIFICATION FILTER - An exhaust gas purification filter | 12-20-2012 |
20120317946 | EXHAUST GAS PURIFICATION FILTER - An exhaust gas purification filter | 12-20-2012 |
20120317947 | CERAMIC HONEYCOMB STRUCTURE AND ITS PRODUCTION METHOD - A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls meeting the conditions; (a) the cell walls having porosity of 55-80%, (b) the cell walls having a median pore diameter D50 (measured by mercury porosimetry) of 5-27 μm, (c) pores open on cell wall surfaces having an opening area ratio of 20% or more, (d) pores open on cell wall surfaces having a median opening diameter d50 (determined from equivalent circle diameters on an area basis) of 10-45 μm, (e) the density of pores open on cell wall surfaces having equivalent circle diameters of 10 μm or more and less than 40 μm being 350/mm | 12-20-2012 |
20130019579 | CERAMIC HONEYCOMB FILTER AND ITS PRODUCTION METHOD - A ceramic honeycomb filter comprising a ceramic honeycomb structure having large numbers of flow paths partitioned by porous cell walls, and plugs disposed in the flow paths alternately on the exhaust gas inlet or outlet side, to remove particulate matter from an exhaust gas passing through the porous cell walls; the porous cell walls having porosity of 45-75%, the median pore diameter A (μm) of the cell walls measured by mercury porosimetry, and the median pore diameter B (μm) of the cell walls measured by a bubble point method meeting the formula of 35<(A−B)/B×100≦70, and the maximum pore diameter of the cell walls measured by a bubble point method being 100 μm or less. | 01-24-2013 |
20130025247 | EXHAUST GAS PURIFICATION FILTER, AND METHOD OF MANUFACTURING EXHAUST GAS PURIFICATION FILTER - An object is to provide an exhaust gas purification filter that can achieve high trapping efficiency of particulate matter and low pressure loss, and the exhaust gas purification filter includes an inflow surface through which exhaust gas containing particulate matter flows in, a discharge surface from which purified gas is discharged, and a filter base body that is formed from a porous body, wherein the filter base body includes porous partition walls and gas flow paths surrounded by the partition walls, a porous film having a pore size smaller than that of pores of the partition walls is provided on each surface of the partition walls, and microgrooves having a depth shallower than the thickness of the porous film are formed on at least a part of a surface of the porous film. | 01-31-2013 |
20130036719 | HONEYCOMB STRUCTURE - The honeycomb structure is provided with a honeycomb structural section, a pair of lateral electrodes on the side face of the honeycomb structural section, and at least one intermediate layer between the honeycomb structural section and the lateral electrodes. The honeycomb structural section has silicon carbide particles having an average particle diameter of 3 to 40 μm and silicon, and the ratio (Si/SiC) of silicon (Si) to silicon carbide (SiC) is 10/90 to 40/60. The lateral electrodes have an average particle diameter of the silicon carbide particles of 10 to 70 μm and a Si/SiC ratio of 20/80 to 50/50. The intermediate layer has an average particle diameter of silicon carbide particles and Si/SiC between those of the honeycomb structural section and those of the lateral electrodes. The electric resistance between the lateral electrodes of the honeycomb structural section is 2 to 100Ω. | 02-14-2013 |
20130055694 | CERAMIC HONEYCOMB STRUCTURES - A ceramic honeycomb structure suitable for particulate filters, having an inlet face and an outlet face, comprising a plurality of inlet cells and a plurality of outlet cells extending through the structure from the inlet face to the outlet face, the inlet cells being open at the inlet face and closed where adjoining the outlet face, and the outlet cells being open at the outlet face and closed where adjoining the inlet face. The inlet and/or outlet cells are quadrangular in cross-section and are arranged in an alternating pattern; the outlet cells may have a cross-sectional area generally smaller than that of inlet cells and no point of a given inlet cell is closer to an adjacent inlet cell than to an adjacent outlet cell. A process for preparing the ceramic honeycomb structure is also disclosed. | 03-07-2013 |
20130111862 | CORDIERITE ALUMINUM MAGNESIUM TITANATE COMPOSITIONS AND CERAMIC ARTICLES COMPRISING SAME - Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same. | 05-09-2013 |
20130145735 | HONEYCOMB FILTER, AND MANUFACTURING METHOD OF THE SAME - A honeycomb filter includes a tubular honeycomb structure having porous partition walls with which there are formed a plurality of cells extending from one end surface to the other end surface to become through channels of a fluid; and plugged portions arranged in one open end portion of each of predetermined cells and the other open end portion of each of the remaining cells, porosities of the partition walls are 46% or less, a pore volume ratio of pores having pore diameters of 40 μm or more is 7.5% or less, and a pore volume ratio of pores having pore diameters of 10 μm or less is 25% or less, a permeability of the honeycomb structure is 0.8 μm | 06-13-2013 |
20130152532 | BETA-SPODUMENE-CORDIERITE COMPOSITION, ARTICLE, AND METHOD - Porous spodumene-cordierite honeycomb bodies of high strength but low volumetric density, useful for the manufacture of close-coupled engine exhaust converters, gasoline engine particulate exhaust filters, and NOx integrated engine exhaust filters, are provided through the reactive sintering of batches comprising sources of magnesia, alumina and silica together with a lithia source, such as a spodumene or petalite ore. | 06-20-2013 |
20130160412 | PERMEABLE MATERIAL, ARTICLES MADE THEREFROM AND METHOD OF MANUFACTURE - The invention is directed to a honeycomb comprising cordierite and β-spudomene, the honeycomb having a having total porosity of greater than 30% and a mean pore diameter of less than 5 μm. The honeycomb is made from a mixture of activated kaolin and a mineral selected from the group consisting of lithium fluorhectorite, lithium hydroxyhectorite and mixtures thereof. In one embodiment up to 20 wt % weight SiO | 06-27-2013 |
20130255211 | Ceramic Filter and Method for Manufacturing the Same - [Problem] To provide a filter whose initial collection efficiency can be increased and whose pressure loss increase can be suppressed. | 10-03-2013 |
20130269303 | GREEN FORMED BODY, AND PROCESS FOR PRODUCTION OF HONEYCOMB STRUCTURE - The present invention provides a green molded body capable of easily controlling the porosity of a honeycomb structure. One aspect of the present invention is a green molded body composed of a honeycomb-shaped cylindrical body | 10-17-2013 |
20130305673 | Porous Metal Body of Sintered Metal Powders and Metal Fibers - A sintered porous body made from a green compact of a flowable air laid mixture of metal particles and metal fibers is disclosed. The green compact is sintered to provide the porous sintered body with an isotropic distribution of metal particles and metal fibers throughout the matrix. The porous sintered body includes metal particles which act as nodes and are sintered to fibers and portions of fibers are sintered to other fibers. | 11-21-2013 |
20140116016 | HONEYCOMB FILTER - A honeycomb filter includes a honeycomb structure and plugged portions. Partition walls of the honeycomb structure are made of a partition wall material including a plurality of aggregates containing silicon carbide or silicon nitride as a main component, and a binding material at a content of 15 to 35 mass %. The binding material is made of a material in which mullite particles as reinforcing particles may be dispersed in cordierite. A thermal expansion coefficient of the partition walls at 40 to 800° C. is 4.2×10 | 05-01-2014 |
20140123611 | SEALED HONEYCOMB STRUCTURE AND DEVICE FOR CLEANING EXHAUST - A sealed honeycomb structure which can suppress increase of pressure loss and improve durability favorably is disclosed. A sealed honeycomb structure | 05-08-2014 |
20140123612 | DUST COLLECTING HONEYCOMB FILTER - A dust collecting honeycomb filter includes a honeycomb base material having porous partition walls to define and form a plurality of cells, and a flange section disposed on an outer periphery of the honeycomb base material and having porous flange partition walls to define and form “a plurality of flange cells extending in the same direction as in the cells”. The flange section is formed so as to project outwardly from the outer periphery of the honeycomb base material, the partition walls and the flange partition walls are continuously connected without forming any boundaries therein, the flange section has flange plugging portions. | 05-08-2014 |
20140150389 | CORDIERITE ALUMINUM MAGNESIUM TITANATE COMPOSITIONS AND CERAMIC ARTICLES COMPRISING SAME - Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same. | 06-05-2014 |
20140165519 | 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. The partition walls are made of a material containing SiC as a main component, at least one of an average open diameter of 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 of the exhaust gas passing 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 80 to 110 W/mK. | 06-19-2014 |
20140202124 | HONEYCOMB FILTER AND MANUFACTURING METHOD OF THE SAME - There is provided a honeycomb filter including a honeycomb base material including a porous partition wall parent material; plugged portions arranged in open frontal areas of predetermined cells in an end surface on an inflow side of the fluid, and open frontal areas of the remaining cells in an end surface on an outflow side of the fluid; and a porous collecting layer disposed on the surface of the partition wall parent material in the remaining cells. In a cross section orthogonal to an extending direction of the cells, a shape of the cells is a rectangular shape, and a thickness of a portion of the collecting layer which is positioned in each of corner portions of each of the cells is from one to three times that of a portion of the collecting layer which is positioned in the center of each of sides of the cell. | 07-24-2014 |
20140202125 | 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. | 07-24-2014 |
20140208706 | HONEYCOMB STRUCTURE - A honeycomb structure | 07-31-2014 |
20140208707 | CERAMIC FILTER - Provided is a ceramic filter that can be used for a long time at a high temperature, including a porous substrate having a partition wall that defines and forms a cell extending from one end face to the other end face, the porous substrate being made of ceramic a separation membrane disposed on a wall face in the cell; and glass seal disposed at the one end face and the other end face so as not to block open frontal areas of the cell. The glass seal includes glass and inorganic particles dispersed in the glass, the inorganic particles being made of clay, and a ratio of a coefficient of thermal expansion of the glass seal to a coefficient of thermal expansion of the porous substrate is 90% or less. | 07-31-2014 |
20140290195 | POROUS MATERIAL, HONEYCOMB STRUCTURE, AND METHOD OF MANUFACTURING POROUS MATERIAL - There is disclosed a porous material which has an improved thermal shock resistance. The porous material contains aggregates and a composite binder. The composite binder includes glass as a binder and mullite particles as reinforcing particles, and the mullite particles are dispersed in the glass. The aggregates are connected to each other by the composite binder in a state where pores are formed in the porous material. Preferably, a lower limit of a percentage of a content of the composite binder to a total mass of the aggregates and composite binder is 12 mass %, and an upper limit of the percentage of the content of the composite binder to the total mass of the aggregates and composite binder is 50 mass %. Preferably, the glass contains MgO, Al | 10-02-2014 |
20140290196 | MANUFACTURING METHOD FOR HONEYCOMB STRUCTURE AND HONEYCOMB STRUCTURE - Provided is a technique to manufacture a honeycomb structure reducing a width of dimensional difference generated during firing between an end part and a central part and having excellent thermal shock resistance, and the method includes: a honeycomb formed body preparing step of extruding a kneaded material including a cordierite forming raw material A, to prepare a formed body; a plugged honeycomb formed body preparing step of filling cell openings thereof with a plugging material which includes a forming raw material containing a cordierite forming raw material B and resin balloon of 1.0 to 15 mass % and has a difference in firing shrinkage rate of −1.0 to +2.0% from the formed body, to prepare a plugged formed body; and a honeycomb structure preparing step of firing the prepared plugged formed body, to prepare a honeycomb structure provided with porous plugged portions. | 10-02-2014 |
20140311111 | POROUS ALPHA-SIC-CONTAINING SHAPED BODY HAVING A CONTIGUOUS OPEN PORE STRUCTURE - The present invention relates to a porous alpha-SiC-containing shaped body with a gas-permeable, open-pored pore structure comprising platelet-shaped crystallites which are connected to form an interconnected, continuous skeletal structure, wherein the skeletal structure consists of more than 80 wt.-% alpha-SiC, relative to the total weight of SiC, a process for producing same and its use as a filter component. | 10-23-2014 |
20140338296 | POROUS CERAMIC ARTICLE AND METHOD OF MANUFACTURING THE SAME - The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle. | 11-20-2014 |
20140338297 | ARTIFACT FREE INERT FILTER MEDIUM FOR COLLECTION OF ORGANIC PARTICLES - An artifact free inert filter medium for collection of organic particles is a fibrous material is developed that can be formed into filters used in ambient and indoor air sampling equipment for subsequent laboratory chemical analysis by one of several thermal optical or thermal analysis methods for the determination of organic carbon (OC), elemental carbon (EC), pyrolysis carbon (PC), and total carbon (TC, sum of OC+EC), carbon fractions determined by thermal or thermal-optical analysis methods (OC1, OC2, OC3, OC4, PC, EC1, EC2, EC3) as well can be analyzed in the laboratory for individual organic species by a range of thermal analysis and or extraction/analysis methods. | 11-20-2014 |
20150020490 | CERAMIC FILTER - A ceramic filter includes a porous ceramic body which is a sintered body of ceramic particles, and a coating portion formed on a surface of each ceramic particle to support the catalyst. The porous ceramic body has a specific surface area equal to or greater than 0.5 m | 01-22-2015 |
20150033690 | HONEYCOMB FILTER - A honeycomb filter includes a silicon carbide honeycomb fired body, an end face, and porous cell walls. The silicon carbide honeycomb fired body includes a plurality of cells through which exhaust gas is to flow and which include exhaust gas introduction cells and exhaust gas emission cells. The silicon carbide honeycomb fired body includes silicon carbide grains having a silicon-containing oxide layer with a thickness of 0.1 to 2 μm on surfaces of the silicon carbide grains. The end face has an aperture ratio of not less than 20% at the exhaust gas emission side. The porous cell walls define rims of the plurality of cells. The plugged portions of the exhaust gas introduction cells are arranged in vertical and horizontal lines with the porous cell walls residing between the plugged portions in the end face at the exhaust gas emission side. | 02-05-2015 |
20150033691 | HONEYCOMB FILTER - A honeycomb filter includes a plurality of cells and porous cell walls. The plurality of cells include exhaust gas introduction cells and exhaust gas emission cells. Each of the exhaust gas emission cells is adjacently surrounded fully by the exhaust gas introduction cells across the porous cell walls. The exhaust gas introduction cells include first exhaust gas introduction cells and second exhaust gas introduction cells. Each of the first exhaust gas introduction cells has the cross sectional area equal to or smaller than 0.7 mm | 02-05-2015 |
20150047307 | HONEYCOMB STRUCTURAL BODY - A honeycomb structural body Is made of cordierite ceramic, and composed of partition walls and cells. A cell density is changed continuously or step by step from a central section to an outer peripheral section in a radial direction. The honeycomb structural body has a relationship of M1>M2>M3, and a relationship of K102-19-2015 | |
20150059305 | HONEYCOMB FILTER AND METHOD FOR PRODUCING HONEYCOMB FILTER - An object of the present invention is to provide a honeycomb filter capable of achieving a combination of high collection efficiency and low pressure loss. The honeycomb filter comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed by a sealing material, wherein the thickness of the filter layer increases gradually from the fluid inlet side toward the fluid outlet side. | 03-05-2015 |
20150068176 | HONEYCOMB FILTER - The honeycomb filter of the present invention comprises a ceramic honeycomb substrate formed from a porous body of sintered ceramic particles, and a filter layer formed on the surface of the cell walls, wherein a portion of the filter layer penetrates from the surface of the cell walls into pores formed by the ceramic particles to form inter-particle filtration bodies, these inter-particle filtration bodies are formed from a plurality of spherical ceramic particles and crosslinking bodies which bind the spherical ceramic particles to each other, and the spherical ceramic particles and the crosslinking bodies form a three-dimensional network structure. | 03-12-2015 |
20150096275 | HONEYCOMB FILTER - A honeycomb filter includes a plurality of honeycomb fired bodies and adhesive layers. Each of the plurality of honeycomb fired bodies includes a plurality of cells, porous cell walls, and an outer wall. The plurality of cells includes exhaust gas introduction cells and exhaust gas emission cells. The exhaust gas introduction cells and the exhaust gas emission cells each have a uniform cross-sectional shape throughout from the exhaust gas inlet side to the exhaust gas outlet side excluding a plugged portion in a cross section perpendicular to a longitudinal direction of the plurality of cells. Each of the exhaust gas emission cells is adjacently surrounded fully by the exhaust gas introduction cells across the porous cell walls. The plurality of cells includes outer cells which are adjacent to the outer wall and which include the exhaust gas introduction cells. | 04-09-2015 |
20150107206 | POROUS BODY, HONEYCOMB FILTER, AND MANUFACTURING METHOD OF POROUS BODY - The porous body satisfies at least one of the following three conditions; “the average value of multiple in-plane uniformity indices γ | 04-23-2015 |
20150121824 | HONEYCOMB FILTER AND PRODUCTION METHOD FOR HONEYCOMB FILTER - An object of the present invention is to provide a honeycomb filter capable of preventing depth filtration and achieving a combination of high collection efficiency and low pressure loss. The honeycomb filter of the present invention comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed, wherein the filter layer is composed of a plurality of spherical ceramic particles, and crosslinking bodies which bind the spherical ceramic particles to each other by crosslinking the spherical ceramic particles, and the spherical ceramic particles and the crosslinking bodies form a three-dimensional network structure. | 05-07-2015 |
20150121825 | HONEYCOMB FILTER - An object of the present invention is to provide a honeycomb filter which is resistant to detachment of the filter layer during regeneration processing, while suppressing any sudden increase in pressure loss caused by depth filtration. The honeycomb filter of the present invention comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed, wherein the filter layer comprises hollow particles. | 05-07-2015 |
20150121826 | HONEYCOMB FILTER - An object of the present invention is to provide a honeycomb filter having low pressure loss and high collection efficiency. The honeycomb filter of the present invention comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed by a sealing material, wherein the filter layer comprises spherical ceramic particles, and the average particle size of the spherical ceramic particles increases gradually from the fluid inlet side toward the fluid outlet side. | 05-07-2015 |
20150121827 | METHOD OF MAKING POROUS PLUGS IN CERAMIC HONEYCOMB FILTER - A ceramic plugging paste useful to make plugs having through holes (partial plugs) in a ceramic honeycomb filter in which the plugging paste is comprised of a ceramic particulate and fluid carrier, wherein the ceramic particulate has at least 90% by number of the particulates being less than 50 micrometers and the fluid carrier is present in an amount sufficient such that the plugging paste is fluid enough to be inserted into a ceramic honeycomb channel and be retained in said channel without any other support other than the walls of the honeycomb defining the channel. Such a paste may be easily injected in the same manner as regular pastes. Such pastes and methods advantageously realize plugs having a through hole resulting in honeycomb filters having low pressure drop while still retaining effective particulate filtration. | 05-07-2015 |
20150135667 | APPARATUS AND METHOD FOR SKINNING ARTICLES - A skinning apparatus and a method of skinning a porous ceramic. The apparatus includes an axial skinning manifold. The axial skinning manifold includes a curved adaptive pipe to flow cement in a circumferential direction from an inlet at a first position and through an adaptive opening along an inner bend of the curve through a land channel disposed along the inner bend. The land channel emits the cement at a constant velocity from a land opening extending proximate the first position to a second position spaced apart from the first position. The land outlet emits cement at a constant velocity around the outer periphery of the porous ceramic to dispose a uniform skin thereon as the porous ceramic moves axially relative to the land outlet. | 05-21-2015 |
20150143786 | ALUMINUM TITANATE COMPOSITIONS, CERAMIC ARTICLES COMPRISING SAME, AND METHODS OF MANUFACTURING SAME - Disclosed are ceramic bodies comprised of a tialite phase and at least one silicate phase with a rare earth oxide and zirconium additions and methods for the manufacture of the same. | 05-28-2015 |
20150337701 | HONEYCOMB STRUCTURE COMPRISING AN OUTER CEMENT SKIN AND A CEMENT THEREFOR - Disclosed is a honeycomb catalyst support structure comprising a honeycomb body and an outer layer or skin formed of a cement comprising an amorphous glass powder with a multimodal particle size distribution applied to an exterior surface of the honeycomb body. The multimodal particle size distribution is achieved through the use of a first glass powder having a first median particle size and at least a second glass powder having a second median particle size. In some embodiments, the first and second glass powders are the same amorphous glass consisting of fused silica. The cement may further include a fine-grained, sub-micron sized silica in the form of colloidal silica. The cement exhibits a coefficient of thermal expansion less than 15×10 | 11-26-2015 |
20150360162 | CERAMIC HONEYCOMB STRUCTURE AND ITS PRODUCTION METHOD - A ceramic honeycomb structure including large numbers of flow paths partitioned by porous cell walls; (a) the cell walls having porosity of 55-65%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to specific percentages of the total pore volume being within specific ranges and satisfying specific relationships; (ii) the difference of a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less; and (iii) the volume of pores of more than 100 μm being 0.05 cm | 12-17-2015 |
20150376070 | METHOD FOR PRODUCING A MOLDED ARTICLE AND MOLDED ARTICLE - In order to provide a method for producing a molded article by means of which a molded article with good temperature resistance is easily producible, it is proposed that the method includes providing a mixture including a powdered base material which includes a pre-fired and/or ground cordierite material and/or a pre-fired and/or ground mullite material; producing a molded article by molding the mixture; and firing the molded article so that particles of the base material are bonded to one another while preserving the particulate property. | 12-31-2015 |
20160061076 | HONEY COMB ASSEMBLY - The present invention relates to a composition comprising a non-oxide silicon containing component, a water soluble phosphate component, a metal oxide ceramic component, a polysaccharide component and water to 100% w/w. This composition can be transformed into a cement that holds individual honey comb filter segments of a honey comb filter together. | 03-03-2016 |
20160068441 | HIGH CORDIERITE-TO-MULLITE RATIO CORDIERITE-MULLITE-ALUMINUM MAGNESIUM TITANATE COMPOSITIONS AND CERAMIC ARTICLES COMPRISING SAME - Disclosed are ceramic bodies comprised of composite cordierite-mullite-aluminum magnesium titanate (CMAT) ceramic compositions having high cordierite-to-mullite ratio and methods for the manufacture of same. | 03-10-2016 |
20160160720 | PARTICULATE FILTER - This particulate filter | 06-09-2016 |
20160185010 | METHOD FOR PRODUCING HONEYCOMB STRUCTURES - A plurality of inlet-side octagonal cells and outlet-side quadrangular cells partitioned by partition walls on an upper surface and a lower surface are opened in a green honeycomb molded body in which a plurality of through-holes partitioned from each other by the partition walls are open in an end surface of a columnar body. Four outlet-side quadrangular cells having a smaller opening area adjoin around one inlet-side octagonal cell through the partition walls. The partition walls are joined together and the inlet-side octagonal cells are opened while closing the outlet-side quadrangular cells on the inlet side and the outlet-side quadrangular cells are opened while closing the inlet-side octagonal cells on the outlet side in a particulate-matter-removing filter such as a diesel particulate filter. | 06-30-2016 |
20160200282 | FILTRATION DEVICES FOR USE IN AUTOMOTIVE AIRBAG APPLICATIONS AND RELATED METHODS | 07-14-2016 |
20160375395 | SEALED HONEYCOMB STRUCTURE - A sealed honeycomb structure may include porous walls dividedly forming inlet cells and outlet cells extending from an end surface of an inlet side to an end surface of an outlet side, an outlet side sealing portion, and an inlet side sealing portion, wherein at least one outlet cell is a reinforced cell, where a reinforced part for reinforcing the outlet cell is formed at at least one corner portion at which the walls on a cross-section vertical to an extending direction of the cell cross each other, and wherein the inlet cell is a non-reinforced cell where the reinforced part is not formed at all the corner portions at which the walls on the cross-section vertical to the extending direction of the cell cross each other. | 12-29-2016 |
20170233298 | APPARATUS AND METHOD FOR SKINNING ARTICLES | 08-17-2017 |
20190145298 | CATALYTIC CONVERTER SUBSTRATES COMPRISING TRIPLY PERIODIC MINIMAL SURFACES | 05-16-2019 |