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6156091 |
Controlled porosity for ceramic contact sheets and setter tiles
A ceramic contact sheet and setter tile with controlled porosity is introduced, along with the method for making the same. The amount of porosity is controlled by the volume percentage, particle...
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6120713 |
Method of making a casting mould having a cellular structure
A method of making a ceramic casting mould contains forming a contact layer on a disposable wax-type pattern of the article to be cast, placing the pattern in a preparation mould for defining the...
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6060080 |
Liposomal products
A liposomal aqueous dispersion and method of making the liposomal aqueous dispersion is useful for encapsulation of drugs. The liposomal aqueous dispersion comprises: an aqueous suspension medium;...
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6042763 |
Method of preparing porous ceramics provided with amorphous pore surfaces
This invention relates to a method for treating various kinds of drain water and waste liquid which treatment now becomes a problem, for example, drain water and waste liquid containing hardly...
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5993852 |
Biphasic lipid vesicle composition for transdermal administration of an immunogen
A composition for transdermal administration of an immunogen is described. The immunogen is entrapped in lipid vesicles having a oil-in-water emulsion in the central core compartment. The vesicles...
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5989467 |
Ceramic foam precursor resin composition
The present invention is embodied in a ceramic foam made by mixing a liquid pre-ceramic resin and a liquid phenolic resin, allowing the resultant mixture to chemically foam, curing the mixture for...
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5976454 |
Process for producing open-celled, inorganic sintered foam products
A process for producing open-celled, inorganic sintered foam products which comprises: a. converting slip material comprising sinterable inorganic powder, a fluid, vaporizable material which...
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5968426 |
Method of producing porous silicon nitride ceramics having high strength and low thermal conductivity
The present invention relates to a method for producing a porous silicon nitride sintered body having high strength and low thermal conductivity, which comprises of adding more than 10 volume % of...
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5938992 |
Production method of thin wall cordierite honeycomb structure
A production method of a honeycomb structure is provided. The production method of a thin wall cordierite honeycomb structure having cordierite as the main component of the crystalline phase...
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5928583 |
Process for making ceramic bodies having a graded porosity
Process for making graded porosity ceramics. A process for making graded porosity ceramics is described which includes the steps of placing a chosen amount of ceramic powder into a mold, compacting...
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5925309 |
Method for the extrusion of ceramic filter media
A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of...
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5874126 |
Making aggregates and articles made therefrom
The process for making a porous mass containing dense aggregates or granu includes the steps of mixing powder with more than 10% by weight of a binder to form agglomerated powder, heating the...
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5871677 |
Method of manufacturing a light, open-pored, mineral insulating board
In order to manufacture a light, open-pored, mineral insulating board with a gross density below 130 kg/m 3 the following steps are employed: a) producing a water-solids suspension by intensive...
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5851460 |
Process for the manufacture of a ceramic foam part
To provide a process for the manufacture of a ceramic part which is a ceramic part resistant to temperature changes and, in particular, suitable also for high temperatures, it is suggested that a...
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5846460 |
Method of preparing silicon nitride porous body
A silicon nitride ceramic porous body having excellent acid and alkali resistance, mechanical strength, and durability can be employed as a filter or a catalytic carrier. The silicon nitride porous...
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5827457 |
Method for manufacturing a lightweight ceramic foamed substance
A method for manufacturing a lightweight foamed ceramic body from components comprising: (a) at least one expandable volcanic mineral; (b) at least one alkaline earth metal oxide, hydroxide, or...
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5772735 |
Supported inorganic membranes
Supported inorganic membranes capable of molecular sieving, and methods for their production, are provided. The subject membranes exhibit high flux and high selectivity. The subject membranes are...
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5705118 |
Process for producing a ceramic body
A process for preparing a ceramic body in which a ceramic mixture is formed into a green body and thereafter fired. The ceramic mixture is prepared by mixing at least about 40 weight percent of...
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5695700 |
Method of preparing a ceramic porous body
A ceramics porous body having high porosity as well as high strength is especially suitable for use as a filter for removing foreign matter from a fluid or as a catalytic carrier. The porous body...
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5696042 |
Ceramic porous body and method for preparing the same
A ceramic porous body for a filter or a catalyst carrier, having a structure in which voids each having the same volume as that of a sphere of 10 μm to 500 μm in diameter are formed and the voids...
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5690729 |
Cement mixtures with alkali-intolerant matter and method
A method of reinforcing cement/concrete mixtures with alkali-intolerant reinforcements and/or aggregate, such as uncoated, common glass filament, plastic filament, fabric and roving made therefrom...
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5685932 |
Process for the production of a microporous body having heat insulation properties
A process for the production of a microporous body having heat insulation properties by (a) mixing of (I) 0.5%-60% by weight of at least one compound selected from the group consisting of...
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5683635 |
Method for preparing uniformly foamed gypsum product with less foam agitation
The invention provides an improved method for preparing foamed gypsum products. The invention can utilize a single mixing chamber and significantly improve the efficiency of foaming agent usage. In...
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5676833 |
High-temperature ceramic filter
A high-temperature ceramic filter having a three-dimensional reticulated skeleton structure is prepared by applying a ceramic slurry to a synthetic resin foam having an open cell three-dimensional...
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5648027 |
Porous carbonaceous material and a method for producing the same
A slurry containing a precursor fiber convertible to carbon fiber and/or a carbon fiber and, based on 100 parts by weight of the fiber, 10 to 300 parts by weight of a thermosetting resin, e.g....
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5643512 |
Methods for producing ceramic foams using pre-ceramic resins combined with liquid phenolic resin
The present invention is embodied in a method of producing a ceramic foam. The steps for producing the ceramic foam include first mixing a liquid pre-ceramic resin with a liquid phenolic resin,...
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5641509 |
Preparation for topical use
The invention relates to a preparation for topical use, having light protection properties and in a special application form. In the known light protection agents containing the naturally occurring...
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5632931 |
Bloated mineral oxide carrier for packed-bed fluid stream chemical processes
Bloated minerals previously used as aggregates for light-weight concrete are here fragmented, wetted, and intermixed with particulate chemical reactants or catalysts, to serve as inert carriers...
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5624756 |
Diamond-based ultra-high-pressure-sintered material having excellent chipping resistance, cutting tool made therefrom, and method of manufacturing the cutting tool
A cutting tool blank formed of material having a composition comprising of 0.1 to 20 wt % of BaCO 3 and/or MgCO 3 , and/or 0.05 to 10 wt % of CaMg(CO 3 ) 2 or CaCO3, the balance being preferably...
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5567663 |
Cordierite honeycomb ceramics and method producing the same
Cordierite honeycomb ceramics comprises a cordierite phase as a main ingredient. A value of [Fe 2 O 3 wt %/(MgO wt %+Fe 2 O 3 wt %)]×100 is 2-10, where a ferric component is calculated as Fe 2...
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5558760 |
Filter/heating body produced by a method of spraying a shape
An improvement process for producing a coated porous ceramic, ceramic composite or metal structure, wherein the impregnation step is carried out by (a) fluidizing said slurry with steam or heated...
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5543096 |
Method for producing activated carbon bodies having silicone resin binder
An activated carbon body and method for making the body which involves forming a wet mixture of in percent by weight based on activated carbon, about 2% to 10% organic binder which can be cellulose...
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5516351 |
Foamed glass manufacture
A foamed glass product and its manufacturer are disclosed. According to the present invention, crushed glass particles and a foaming agent, preferably selected from CaCO 3 and CaSO 4 , are...
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5474587 |
Porous fluid-permeable moldings of silicon carbide and process of production
A process for producing a porous fluid permeable body which is heatable by the passage of electric current therethrough. The process involves coating silicon-containing particles with a cokable...
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5397759 |
Hollow porous microspheres made from dispersed particle compositions
Hollow porous microspheres of uniform diameter and of uniform wall thickness are disclosed. The walls of the hollow microspheres comprise sintered together particles which define interconnecting...
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5395572 |
Process for making cellular silicon carbide
A process for making a structural member wherein bead members are mixed with a selected material and the mixture is compressed and molded into a shape. The compressed mixture is then heated and the...
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5384290 |
Porous ceramic beads
Ceramic beads having a bimodal pore distribution are prepared by a process involving a) formation of a ceramic particle slurry, b) adding a foamable prepolymer to the slurry to form a mixture, c)...
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5364570 |
Ceramic material
A lightweight ceramic material is provided, useful for example as thermal insulation, kiln furniture or for metallurgical applications. Accordingly, a lightweight fired ceramic material comprises a...
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5344799 |
Formable ceramic compositions and method of use therefor
A plastically deformable mixture and method for making a body from the mixture are disclosed. The mixture is composed of powder materials, which when fired form as predominant phases: ceramic,...
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5308556 |
Method of making extrusion dies from powders
A method of forming an extrusion die fabricated from sinterable ceramic or metal powders, for use in forming honeycomb monolith structures including machining of the die in the green state or after...
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5258150 |
Fabrication of low thermal expansion, high porosity cordierite body
A body is made up of at least about 93% by weight cordierite, having a coefficient of thermal expansion of no greater than about 4×10 -7 °C -1 , from about 25° C. to about 800°0 C., and a...
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5230953 |
Silica particles and process for producing the same
Silica particles having an average particle size of 5 to 100 μm, a BET specific surface area of not more than 20 m 2 /g and a pore volume of not more than 0.1 ml/g, each of which has on its...
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5229046 |
Process for producing thermal shock-resistant silicon nitride sintered material
There is provided a thermal shock-resistant silicon nitride sintered material including silicon nitride and rare earth element compounds, which material contains at least 10 pore groups per mm 2 ,...
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5227342 |
Process of making porous ceramic materials with controlled porosity
A method of making metal oxide ceramic material is disclosed by which the porosity of the resulting material can be selectively controlled by manipulating the sol used to make the material. The...
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5225247 |
Process for producing a gas purging plug with increased resistance to infiltration and oriented porosity
A process for producing a plug with increased resistance to infiltration and oriented porosity for use in metallurgical melting crucibles, in which the matrix material of the plug is subjected to...
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5225123 |
Methods for producing hollow microspheres made from dispersed particle compositions
Method for making hollow microspheres of substantially uniform diameter and of substantially uniform wall thickness is disclosed. The walls of the hollow microspheres comprise sintered together...
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5215941 |
Process for producing a sintered apatite article having a porous surface using an acidic buffer solution
A process for producing a sintered apatite article having a porous surface by contacting a dense sintered apatite article with an acidic buffer solution, provided that the acidic buffer solution...
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5213612 |
Method of forming porous bodies of molybdenum or tungsten
A method for forming a porous body of a metal from the group consisting of molybdenum, molybdenum alloy, tungsten, tungsten alloy, or mixtures thereof comprises foaming a mixture of a sinterable...
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5195843 |
Ceramic foam body having closed cell structure
A cylindrical ceramic foam body that can be the sole buoyant member of an oil-containment boom is produced by firing a mixture of fine particles of ceramic precursor, a source of carbon such as...
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5177035 |
Molten metal filter and method for making same
A porous ceramic body of high structural strength and integrity is disclosed, along with the method of fabricating such, whereby a curable resin and a sinterable ceramic are mixed and then admixed...
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