Abstract: An extrusion molding composition comprises a cellulose or cellulose derivative, an ionic liquid, and a ceramic material. The composition can be extrusion molded into a ceramic part at a high molding speed and without drying cracks.

Abstract: The invention relates to a bilayer pressure-sensitive adhesive. Provision is made for the bilayer pressure-sensitive adhesive to comprise an apolar layer and a polar layer, the apolar layer and the polar layer each comprising a polyacrylate pressure-sensitive adhesive having a static glass transition temperature of not more than +15° C., and the surface energy of the apolar layer differing from the surface energy of the polar layer by at least 5 mN/m.

Abstract: The disclosure relates to a material suitable for forming a honeycomb monolith for liquid filtration and, more particularly, to a mullite material for forming a cross-flow filtration device for separating a feed stock into filtrate and retentate, methods for forming the filtration device, and filtration devices formed from the material.

Abstract: Tray assemblies and methods for manufacturing ceramic articles are provided. In one embodiment, a tray assembly includes a tray body having a supporting surface operable to support a ceramic article for passage through a microwave drying apparatus during a microwave drying process and a microwave coupling cover associated with the tray body. The microwave coupling cover envelopes at least a portion of the ceramic article during the microwave drying process. The microwave coupling cover has a dielectric property such that a greater percentage of microwave energy is coupled into the ceramic article with the microwave coupling cover present during the microwave drying process than with the microwave coupling cover not present. Methods may include rotating the ceramic article when the ceramic article is about 40%-60 dry.

Abstract: The invention relates to a process for obtaining a porous material made of recrystallized SiC, especially in the form of a structure for filtering a particulate-laden gas, starting from at least two powders of fine and coarse SiC particles, blended with an organic material comprising an organic pore former and/or a binder, in suitable proportions and in the presence of a sufficient amount of a solvent, such as water, so as to allow forming of said blend and firing thereof between 1600° C. and 2400° C., said process being characterized in that the difference between the percentile d90 of the coarse particle powder and the percentile d10 of the fine particle powder multiplied by the volume of organic material in the initial blend, expressed as a percentage relative to the total volume of the SiC particles, is between 250 and 1500. The invention also relates to the porous material made of recrystallized SiC that can be obtained by said process.

Abstract: The present invention relates to a process for the production of an absorbing sanitary article comprising lactic acid producing bacteria. The process comprises dispersion of lactic acid producing bacteria in a carrier, and application of the resulting dispersion of bacteria by continuous or discontinuous gentle feeding on and/or in at least one component that are to form part of the final article. Furthermore, the present invention relates to an absorbing sanitary article comprising lactic acid producing bacteria dispersed in an essentially hydrophobic carrier. The dispersion of bacteria forms at least one continuous or discontinuous string on and/or in the final sanitary article.

Abstract: A porous ceramic material is disclosed having a principal cordierite phase, the porous ceramic material exhibiting a normalized strength greater than 20 MPa. The cordierite phase has a reticular microstructure. A method for forming a porous ceramic body having a predominant phase of cordierite is provided which includes forming a body from a plasticized mixture of inorganic ceramic-forming ingredients that include a magnesia source, a silica source, and an alumina source, the alumina source including alumina-containing elongated particles, wherein at least 90 wt % of the alumina-containing elongated particles have a length of 50 to 150 ?m, and then firing the body.

Abstract: This invention relates to a process for manufacturing a dense material containing UO2, comprising: a) introducing at least two powders each comprising uranium dioxide UO2 into a vibrating grinder, wherein at least two powders are provided by two different synthesis routes and each powder has a specific surface area close to that of any other uranium-dioxide containing powder introduced into said grinder; b) shaking said powders by means of said vibrating grinder so as to form a particulate material, the grinding intensity being sufficient to break up the agglomerates and the aggregates in the powders without at the same time breaking up the crystallites in the powders, and the grinding energy provided to the powders being such that substantially all of the agglomerates and aggregates are destroyed; c) introducing said particulate material into a mould; d) applying a shaping stress to said particulate material in order to obtain a compacted material; e) carrying out the sintering of said compacted material so

Abstract: A method for sintering anhydrous calcium sulfate material as biomedical material, includes the steps of: (a) preparing the anhydrous calcium sulfate material; (b) mixing the anhydrous calcium sulfate material with a sintering-support agent thoroughly to obtain a mixture waited for sintering; (c) die-pressing the mixture into a predetermined shape; and (d) executing a heat treatment onto the mixture to make the mixture be sintered to form the biomedical material having the predetermined shape.

Abstract: A porous substrate and method of forming a porous substrate including providing a fiber material, providing at least one extrusion aid, and providing at least one washcoat precursor. The fiber material, the at least one extrusion aid and the at least one washcoat precursor are mixed to provide an extrudable batch. The extrudable batch is extruded into a green substrate. The green substrate is fired to form a porous rigid substrate and to form a washcoat at least partially coating the fiber material.

Abstract: A member of an element for feeding fluid and pasty products in cylinder or sleeve form, able to withstand high thermal transitions, comprises, arranged concentrically relative to each other, a part made of ceramic material (6, 16) intended to come into contact with the fluid and a support made of polymer material (14, 22) overmoulded on the part made of ceramic material (6, 16). The part made of ceramic material (6, 16) has, on its external lateral face, at least one relief (24) comprising at least one dextrogyral helical groove and at least one levogyral helical groove that extend over the surface of the ceramic part in contact with the support made of polymer material which both prevent any relative movement of this part (6, 16) and of the support (14, 22), and distribute the tensions that can be produced by high temperature differentials.

Abstract: A porous ceramic substrate is disclosed that is fabricated from biosoluble ceramic fibers. Porosity and permeability of the substrate is provided by intertangled biosoluble fibers, that can be formed into a honeycomb form substrate through an extrusion process. The fibrous structure is formed from mixing biosoluble fibers with additives that include a bonding agent, and a fluid to provide an extrudable mixture. The structure is sintered at a temperature that exceeds the glass formation temperature of the bonding agent, but less than the maximum operational limits of the biosoluble fiber, to form a structure that has sufficient strength and porosity to provide for filtration and/or as a catalytic host.

Abstract: The present invention relates to methods for the formation of ceramic bodies. Methods of the invention involve processing ceramic-forming compositions to form an integrally self-supporting or stabilized structure, which may then be sintered to give the full-density ceramic product. Methods of the invention may also involve densification of the ceramic body. In one set of embodiments, the volume of the integrally self-supporting structure is reduced by at least 20%. The present invention may produce ceramic bodies having greater strength and durability, since the ceramic-forming compositions may be low in viscosity and may be homogeneously blended, decreasing the possibility for defects.

Abstract: An alumina fiber aggregate which is minimized in scatter of fibers, excels in handling characteristics and working environmental hygiene and finds its useful application to support mats for catalytic converters and such is provided. An alumina fiber aggregate comprising alumina short fibers having such properties that when diameters of said alumina short fibers are represented by x (?m), the rate at which the natural logarithmic value ln x in lognormal distribution of x is less than ln 3 is not more than 2%, and the value left after deducting from the length-weighted geometric mean of said fiber diameters a value twice its standard error is not more than 6 ?m; and a support mat for catalytic converters comprising such an alumina fiber aggregate.

Abstract: A coherent nonwoven fibrous web comprises directly formed elastic fibers that have a molecular orientation sufficient to provide a birefringence number of at least 1×10?5 and preferably at least 1×10?2. The web can be made by a method that comprises a) extruding filaments of elastic-fiber-forming material; b) directing the filaments through a processing chamber in which gaseous currents apply a longitudinal stress to the filaments that attenuates and draws the filaments; c) maintaining the filaments at their orienting temperature while the filaments are under attenuating and drawing stress for a sufficient time for molecules within the filaments to become oriented along the length of the filaments; d) cooling the filaments to their orientation-locking temperature while the filaments are under attenuating and drawing stress and further cooling the filaments to a solidified fiber form; and e) collecting the solidified fibers as a fibrous nonwoven web.

Abstract: The embodiments of the invention are directed to a synthetic ceramic comprising pyroxene-containing crystalline phase, a clast, and a glass phase, wherein at least a portion of the synthetic ceramic is plastically deformable in a certain temperature range. Other embodiments of the invention relate to a method of making a synthetic ceramic, comprising heating a green ceramic material to 900-1400° C., to a temperature sufficient to initiate partial melting of at least a portion of the green ceramic material, transferring the heated green ceramic material to a press, pressing the heated green ceramic material in a die at 1,000 to 10,000 psi, and transferring the heated, pressed green ceramic material to a furnace for cooling to form the synthetic ceramic.

Abstract: Provided is a method for making a ceramic clay brick using waste battery powder. Valuables of the waste batteries are separated through a crushing, pyrolysis, pulverizing, and magnetic separation processes. The remaining waste battery powder is processed in order to utilize the remaining waste battery powder as a colorant in a brick making process. Clay powder is added to the processed waste battery powder to make a black-colored, dark red-colored, or dark brown-colored brick according to its contents. According to the present invention, since the waste battery powder mainly including manganese and zinc can be processed into the colorant and mixed with the clay powder to make the black-colored, dark red-colored, or dark brown-colored brick according to its contents, purchase costs MnO2 used as the colorant during the making process of the ceramic brick can be remarkably reduced. In addition, superior bricks can be made at low cost.

Abstract: This invention relates to a new non-woven fabric or laminate produced in a spunbond process using ultra low polymeric resins above 100 MFR as the raw materials using filament speeds above 5,000 meters per minute. The new materials produced possess an excellent combination of the softness and the strength resulting from ultra fine filaments attained through high spinning speed and the favorable filament structure allowing for strong binding achieved. One spunbond process that can be used for producing the fabric using the ultra low polymeric resins as raw materials is the process described in U.S. Pat. No. 5,688,468 and U.S. Pat. No. 6,183,684 that provides for filament speeds above 5,000 meters per minute.

Abstract: The disclosure relates to a material suitable for forming a honeycomb monolith for liquid filtration and, more particularly, to a mullite material for forming a cross-flow filtration device for separating a feed stock into filtrate and retentate, methods for forming the filtration device, and filtration devices formed from the material.

Abstract: A pasty molding material is divided by a process wherein, for the division, the pasty molding material is brought into contact with at least on stream containing at least one fluid medium.

Abstract: A composition for ceramic extrusion-molded bodies includes a ceramic material, a water-soluble cellulose ether, a styrenesulfonate and water. A method for manufacturing a ceramic extrusion-molded body using the composition is also provided.

Abstract: This invention relates to a method for manufacturing an artificial ultra-lightweight aggregate having a specific gravity of 0.8-0.9 using raw sewage sludge. According to the invention, raw sewage sludge and water-free waste are mixed into a blend having a water content that allows the optimal extrusion, whereby excellent ultra-lightweight aggregate which has low water absorption rate and, low slump loss can be produced. In addition, the collective treatment of waste and the mass production of recycled products are possible without addition of a drying process for raw sewage sludge, and thus excellent ultra-lightweight aggregate can be supplied at low cost.

Abstract: A method of producing a non-lofted fiber veil of an orientable polymer for the production of insulation, e.g. thermal, for blown-in applications, having X, Y and Z vector directions of the fibers comprising, melt blowing the polymer to form molten fibers, having molecules oriented along the length of the fibers, the X vector direction, placing the fibers on a roller spinning at a rate to provide additional orientation of the molecules of the fibers, displacing some said fibers into the Y vector direction, and cooling the fibers while on the roller to form the non-lofted fiber veil. Also included is the product of the method, a blown in insulation, intermediate products, an apparatus and a method of producing a product for blown-in installation.

Abstract: A porous ceramic substrate is disclosed that is fabricated from biosoluble ceramic fibers. Porosity and permeability of the substrate is provided by intertangled biosoluble fibers, that can be formed into a honeycomb form substrate through an extrusion process. The fibrous structure is formed from mixing biosoluble fibers with additives that include a bonding agent, and a fluid to provide an extrudable mixture. The structure is sintered at a temperature that exceeds the glass formation temperature of the bonding agent, but less than the maximum operational limits of the biosoluble fiber, to form a structure that has sufficient strength and porosity to provide for filtration and/or as a catalytic host.

Abstract: A ceramic honeycomb product comprising a thin-walled ceramic honeycomb structure incorporating a plurality of parallel channels bounded by thin channel walls traversing the body from a first end face to a second end face thereof; and a composite coating disposed on at least one end face of the structure comprising a powder of an abrasion-resistant ceramic dispersed in a dried siliceous matrix.

Abstract: The present invention relates to processes for making anodes suitable for use in the production of titanium metals. The processes use a kneaded mixture of TiO2 particles, carbon particles, a binder, and a solvent. The mixture is extruded and the solvent is allowed to evaporate to form a green body which is subsequently fired. During firing of the green body, the carbon particles aid in reducing the titanium dioxide to a lower oxide or oxycarbide which can be electrochemically processed into titanium metal.

Abstract: A porous mullite composition is made by Forming a mixture of one or more precursor compounds having the elements present in mullite (e.g., clay, alumina, silica) and a property enhancing compound. The property enhancing compound is a compound having an element selected from the group consisting of Mg, Ca, Fe, Na, K, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb, Lu, B, Y, Sc, La and combination thereof. The mixture is shaped and to form a porous green shape which is heated under an atmosphere having a fluorine containing gas to a temperature sufficient to form a mullite composition comprised substantially of acicular mullite grains that are essentially chemically bound.

Abstract: A method for manufacturing a composite material is disclosed, and the method includes providing a core object, submerging the core object in the thermosetting resin to form the composite material, heating up and solidifying the thermosetting resin, and extruding to form a shape by extrusion molding.

Abstract: A porous substrate and method of forming a porous substrate including providing a fiber material, providing at least one extrusion aid, and providing at least one washcoat precursor. The fiber material, the at least one extrusion aid and the at least one washcoat precursor are mixed to provide an extrudable batch. The extrudable batch is extruded into a green substrate.

Abstract: A method for producing a ceramic article comprising the steps of providing a plasticized ceramic precursor batch composition comprising an inorganic ceramic powder batch composition; a liquid vehicle; and an organic binder system comprising at least one organic lubricant grafted to a cellulose ether binder. An extruded green body can be formed from the plasticized ceramic precursor batch composition and subsequently fired under conditions effective to convert the extruded green body into a unitary ceramic article. Also provided are ceramic articles manufactured by the methods disclosed herein.

Abstract: This invention deals with a family of inorganic-organic hybrid, melt-extruded filaments having variable cross-sectional geometry with a cross-sectional area ranging between 100 ?2 and 4 mm2, wherein the inorganic component comprises at least 10 weight percent of the total system and is present as dispersed micro-/nanoparticles in an organic absorbable or non-absorbable matrix representing no more than 90 weight percent. Hybrid filaments are particularly useful for the production of absorbable/disintegratable coil components of an absorbable/disintegratable endoureteral stent and radiopaque surgical markers or sutures.

Abstract: Methods and machines for making fastener products having molded projections or other molded features carried on a surface feature transferring resin in discrete doses through an orifice defined in an outer surface of a rotating die wheel.

Abstract: Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a?0.95; 0?b?0.5, 0.0?c?0.10, and 0?d?0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

Abstract: A new type of composite with wooden quality, which contains a plastic inner layer and an outer envelope is described. The plastic inner layer is crosslinked with the outer envelope, the latter of which is made up from a plastic material containing a 5-20 wt. % of wood flour.

Abstract: A composite material is obtained by mixing with water 100 parts in weight of binder, between 250 and 800 parts in weight of steel-based shot having a granulometric distribution comprised between 120 jim and 3000 jim, between 10 and 15 parts in weight of non-densified silica fume and a highly water-reducing superplasticizer. The ratio between the weight quantity of water and the weight quantity of hydraulic binder is comprised between 0.16 and 0.25. The composite material presents a very high abrasion resistance, an abrasion index measured according to the C.N.R protocol comprised between 0.15 and 1.0, the value of the D10 grain size of the shot being at least eight times greater than the value of the D90 grain size of the hydraulic binder.

Abstract: A ceramic composite material is comprised of a fabric of fibers of an inorganic substance; and a matrix for combining the fibers. The matrix consists essentially of a ceramic. The matrix is formed by burying the fabric in a mixture of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.

Abstract: The present invention provides a method for producing a cellulose acylate film comprising: a foreign matter evaluation step for arbitrarily extracting a part of a cellulose acylate resin, which is a raw material before being melted by an extruder, melting the part of raw material to prepare a sample with a thickness of 300 ?m or less, and observing the sample by a polarization microscope to evaluate whether the sample has the number of foreign matters of 30 pieces/mm3 or less; a resin supply step for placing into the extruder a raw material selected by the foreign matter evaluation step as the raw material having the number of foreign matters of 30 pieces/mm3 or less; an extrusion step for melting the raw material by the extruder and extruding the raw material as a molten resin into a pipe for supply to a die; and a film formation step for discharging the molten resin extruded to the pipe from the die onto a traveling or rotating cooling support in a form of sheet to cool and solidify the sheet.

Abstract: Compositions, and articles having low thermal expansion suitable for high temperature applications, such as automotive exhaust treatment and method of manufacturing such articles are disclosed.

Abstract: A method for producing ceramic micromanufactured items comprises the following stages: a starting material constituting at least a micromanufactured item (1) is prepared and used to from the micromanufactured item (1); said starting material includes at least a pre-ceramic polymer, and the method further comprises a stage in which the inner structure of the starting material is modified, said structure being turned from a polymeric structure to a ceramic structure after the forming stage of said micromanufactured item (1).

Abstract: The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the binder system comprises 30-70 wt % poly(ethylene-co-vinylacetate) and balance (Polyethylene)-blend-(Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy)-based wax. The solids loading of the feedstock, ?, is 0.51<?<0.53, calculated using the equation: ? = ? f - ? b ? s - ? b where ?s is the density of the material as sintered, ?b is the density of the binder system and ?f is the density of the feedstock, measured with a helium pycnometer. Debinding is performed by heating in a furnace in flowing hydrogen atmosphere.

Abstract: The invention relates to a method for the production of a sintered, microcrystalline ?-Al2O3-based shaped body, which are used, for example, as abrasive bodies, wherein an ?-Al2O3 powder is used as starting material, said powder having an average particle diameter of <2 ?m, and processed with at least one binder and a solvent with the purpose of obtaining an extrudable material that is subsequently extruded. The extrudate is then further processed into a shaped body that is sintered at a temperature range of between 1300° C. and 1750° C.

Abstract: A method of manufacturing a ceramic honeycomb structure of the present invention, comprising the steps of: stamping sheets onto opposite end faces of a ceramic honeycomb body having a plurality of cells and formed into a honeycomb shape; drilling holes in the sheets at positions corresponding to opening parts of the cells; filling, through the holes, a slurry for sealing into the opening parts of the cells in the opposite end faces of the ceramic honeycomb body; firing the body; and alternately sealing the opening parts of the cells, characterized by comprising the steps of: forming the ceramic honeycomb body into a shape having at least one reference cell different in the shape of the opening part in the end face from the other cells; and drilling the holes in the sheets at the positions corresponding to the opening parts of the reference cell and the other cells with the reference cell taken as a reference point, whereby the ceramic honeycomb structure thus obtained can be manufactured at a low cost, since

Abstract: This invention relates to an exhaust gas purifying apparatus having a particulate filter for collecting particulates in exhaust gas. This particulate filter (22) contains partition walls defining paths (50, 51) in which exhaust gas flows. This partition wall is formed of porous material. This particulate filter (22) is created by gathering tips of the partition walls and then baking with the adjacent partition walls being in contact with each other. The adjacent partition walls are bonded together at a predetermined bonding strength if the partition walls are baked such that they are in contact. According to this invention, the end portion of the particulate filter (22) has a higher strength than the predetermined bonding strength.

Abstract: A ceramic filter for trapping and combusting diesel exhaust particulates composed of an end-plugged cordierite honeycomb structure exhibiting a pore size distribution as determined by mercury porosimetry in which the quantity d50/(d50+d90) as related to pore size distribution is less than 0.70, a soot loaded permeability factor Sf, as defined by the equation [d50/(d50+d90)]/[% porosity/100], of less than 1.55, and, a coefficient of thermal expansion (25–800° C.) of no greater than 17×10?7/° C. The ceramic filter further exhibits a median pore diameter, d50, of at least 4 micrometers and up to 40 micrometers. A method of making the filter is provided.

Abstract: There is provided a honeycomb structure in which the structure is not segmented, or a smaller number of segments are integrated to suppress a local temperature rise and to reduce breakage by thermal stress at the time of use, and a method of manufacturing the structure. There is disclosed a honeycomb structure 1 comprising: a large number of cells 3 partitioned by cell walls 2 and extending through an axial direction. A flow channel separator 6 is formed in the honeycomb structure 1. There is disclosed a method of manufacturing the honeycomb structure 1 in which the flow channel separator 6 is formed by extrusion. There is disclosed a method of manufacturing the honeycomb structure 1 in which the flow channel separator 6 is formed by clogging.

Abstract: A mixed polymer liquid is prepared by mixing a polycarbosilane-dissolved organic solvent with poly(methylsilane) and moderated to viscosity of 5–20 Pa·s by heat-treatment to promote partial cross-linking reaction. The mixed-polymer is then melt-spun to fiber at 250–350° C. The fiber is cured by treatment at 100–200° C. in an oxidizing atmosphere, and baked at 1000° C. or higher. Due to thermosetting action of poly(methylsilane), the mixed polymer liquid is continuously melt-spun without breakage, and SiC fiber produced in this way is useful for reinforcement of SiC composite excellent in toughness, strength and heat-resistance.

Abstract: A method for plugging a subset of cells of a honeycomb structure having a plurality of open-end cells extending therethrough including providing at least one cylindrically-shaped first roller including an engagement surface having a plurality of outwardly-extending teeth spaced along a length and about a circumference of the at least one first roller, wherein the teeth are spaced so as to engage a first subset of a total number of cells exposed on a first end of the honeycomb structure. The method also includes rolling the engagement surface of the at least one first roller across the first end of the honeycomb structure with the teeth extending into the first subset of cells, thereby deforming the first end of the honeycomb structure and plugging a second subset of the total number of cells substantially different from the first subset of cells.

Abstract: There is provided a particulate filter for trapping particulates contained in an exhaust gas discharged from a combustion chamber of an engine, comprising a plurality of exhaust gas flow passages each formed by three porous partitions extending substantially parallel with each other, each of the exhaust gas flow passages having a triangular cross section, wherein the partitions defining one of the adjacent exhaust gas flow passages are deformed at one end area of the filter so that the partitions at one end area of the filter approach each other toward one of the ends of the filter, the deformed portions of the partitions are connected to each other at their ends, thereby an opening of one of the adjacent exhaust gas flow passages is at least partially closed, the partitions defining the other exhaust gas flow passage are deformed at the other end area of the filter so that the partitions at the other end area of the filter approach each other toward the other end of the filter, and the deformed portions of t

Abstract: A thermochemically stable oxidic thermal insulating material presenting phase stability, which can be used advantageously as a thermal insulating layer on parts subjected to high thermal stress, such as turbine blades or such like. The thermal insulating material can be processed by plasma spraying and consists preferably of a magnetoplumbite phase whose preferred composition is MMeAl11O19, where M is La or Nd and where Me is chosen from among zinc, the alkaline earth metals, transition metals, and rare earths, preferably from magnesium, zinc, cobalt, manganese, iron, nickel and chromium.

Abstract: A method of fabricating a substrate used for purifying an exhaust gas is provided. This method comprises the step of transforming a pre-mold having a first end, a second end, a plurality of partition walls extending between the first end and the second end, the first transforming step for transforming the end portions of the partition walls at the first end in such a manner that the ends of the partition walls defining one of two adjacent passages at the first end of the pre-mold are collected toward the center of a corresponding passage and connected to each other, and the second transforming step for transforming the ends of the partition walls at the first end in such a manner that the end surfaces of the partition walls at the first end are depressed toward the center of each of the end surfaces.