| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | ORTHODONTIC APPLIANCES INCLUDING POLYCRYSTALLINE ALUMINA-BASED CERAMIC MATERIAL, KITS, AND METHODS | US10034997 | 2001-12-28 | US20030165790A1 | 2003-09-04 | Darren T. Castro; Richard P. Rusin; William E. Wyllie II |
| An orthodontic appliance that includes a polycrystalline translucent aluminum oxide ceramic material having an average grain size of no greater than 1.0 micron and a Contrast Ratio value of less than about 0.7. | ||||||
| 242 | High temperature amorphous composition based on aluminum phosphate | US10266832 | 2002-10-08 | US20030138673A1 | 2003-07-24 | Sankar Sambasivan; Kimberly A. Steiner |
| A composition providing thermal, corrosion, and oxidation protection at high temperatures is based on a synthetic aluminum phosphate, in which the molar content of aluminum is greater than phosphorous. The composition is annealed and is metastable at temperatures up to 1400null C. | ||||||
| 243 | Manufacturing method and drying device for ceramic honeycomb form | US10284343 | 2002-10-31 | US20030090038A1 | 2003-05-15 | Satoshi Ishikawa; Shoichi Goto; Hiromi Katou |
| The present invention manufactures a ceramic honeycomb structure, and includes an extrusion process for forming the honeycomb form, a cutting process for cutting the honeycomb form into predetermined lengths, a drying process for drying the honeycomb form, and a firing process for firing the honeycomb form, a heating step with a honeycomb form arranged with its axis inclined away from the vertical and a rotating step for changing the arrangement of the honeycomb form by rotating it being alternated in the drying process. | ||||||
| 244 | High temperature amorphous composition based on aluminum phosphate | US09644495 | 2000-08-23 | US06461415B1 | 2002-10-08 | Sankar Sambasivan; Kimberly Ann Steiner |
| A composition providing thermal, corrosion, and oxidation protection at high temperatures is based on a synthetic aluminum phosphate, in which the molar content of aluminum is greater than phosphorous. The composition is annealed and is metastable at temperatures up to 1400° C. | ||||||
| 245 | Synthetic garnite tiles and a method of producing the same from beach sand garnet | US904626 | 1997-08-01 | US06063720A | 2000-05-16 | Amitabha Kumar; Goutam Banerjee; Dinesh Kumar Das; Nar Singh; Santosh Kumar Haldar |
| This invention relates to synthetic garnite tiles made essentially from garnite sand and a process for the production of synthetic garnite tiles essentially from garnet sand which is a by-product of beach sand from rare earths extraction, said process comprising mixing beach sand garnet, feldspar and clay thoroughly; pressing the mixture using a press at a pressure in the range of 40-80 MPa to form tiles of desired shapes and sizes; drying the tiles so formed at a temperature of 100-120.degree. C.; firing the dried tiles at a temperature in the range of 1050-1250.degree. C. with a soaking for a period ranging from 1.5 to 2.5 hours, and polishing the resultant tiles. | ||||||
| 246 | Reaction products of lyotropic liquid crystal salt complexes | US239619 | 1994-05-09 | US5443753A | 1995-08-22 | Stanley B. Elliott |
| The invention provides novel polymeric and non-polymeric, liquid crystal type, chemical salt complexes of aroyl acids and monovalent and polyvalent metals. They are formed by covalent and coordinate bonding for use as electrical superconductors, as electrolytes in alkali metal batteries, electrochromic windows, static dissipative polymers, etc. The invention also provides processes for manufacturing such complexes, including the in situ formation in and on various metals and oxides. The processes also include the use of supercritical solvents such as carbon dioxide to solubilize the complexes for introduction into plastics and inorganic superconductors. The chemical complexes include the triads formed of liquid crystal aroyl salts, non-polymeric ligand solvents, and polymeric aroylacrylate salts. Both homopolymer and copolymer complexes of the metal aroylacrylates may be prepared and the latter may be cross-linked. Novel covalent, liquid crystal, reaction product complexes of lyotropic liquid crystal, metal aroylacrylate complexes and isocyanates (both polymeric and non-polymeric) are prepared. These are dyes having a high degree of conjugated unsaturation. Solutions of the reaction products of monovalent and polyvalent metal complexes can be prepared. Excess ligand solvents used in preparing these materials can be vaporized in a controlled way to produce liquid crystal systems. These systems can be cross-linked. Supercritical fluids such as carbon dioxide can be used to dissolve these various complexes and allow their distribution into both plastic particles and powdered inorganic superconductors so as to distribute complexes uniformly throughout the particles so as to enhance properties such as electrical conductivity when the particles are formed into larger systems. | ||||||
| 247 | Plate product of ceramic material and process for the manufacturing thereof | US841254 | 1992-02-24 | US5264168A | 1993-11-23 | Marcello Toncelli |
| Plates of ceramic material are prepared starting from stone material, particularly feldspar, quartz, porphyry, granites, silica, syenites, nephelines, ceramic materials, clays, kaolins, bentonites, in granular and/or powder form, mixed with a small amount of ceramic binder to form a mixture. This mixture is distributed onto a plane delimited from a containing frame and then subjected to the simultaneous action of a vacuum and of a vibratory motion combined with a pressing action. After the moulding step, a drying step and then a firing step are carried out, the latter taking place at the standard temperatures for the manufacturing of ceramic products.The resulting plate has high mechanical properties, is highly resistant to atmospherical and chemical agents, and has a very valuable aesthetic appearance. | ||||||
| 248 | Process for producing a kaolin clay product | US738911 | 1991-08-01 | US5223463A | 1993-06-29 | Bomi M. Bilimoria; William E. Thompson |
| A process for producing a high brightness, high solids kaolin clay aqueous slurry. An aqueous low solids suspension of crude kaolin clay is degritted, and subjected to a particle size classification. The aqueous suspension of the fine particle fraction is acidified to a pH of 5.0 or lower to produce an acid flocculated suspension which is treated with a bleaching agent to reduce ferric ion impurities to ferrous ion impurities. A ferrous ion chelating agent is added to the bleached acid flocculated suspension after which an alkaline agent is added to raise the pH to a level greater than 5.0 to form a dispersed aqueous suspension of the beneficiated kaolin. The dispersed suspension is then subjected to membrane filtration to partially dewater same, and additional water is thermally evaporated from the partially dewatered dispersed kaolin suspension to produce the high solids product suspension. | ||||||
| 249 | Refractory material produced from red mud | US636749 | 1991-01-02 | US5106797A | 1992-04-21 | Claude Allaire |
| A process for producing a refractory material and to the material so-produced. The process comprises calcining red mud obtained as a by-product of the Bayer process of producing alumina, grinding the calcined product to form particles of -4 Tyler mesh, mixing the ground product with a binder (e.g. colloidal silica, colloidal alumina, sodium silicate or sodium aluminate) and sufficient water to produce a formable mixture. The mixture is then formed into a desired shape and fired, preferably after curing and drying. The resulting fired products have good resistance to high temperatures and to corrosive chemicals such as cryolite. Consequently, the products can be used as refractory linings for aluminium production cells, and in similar applications. | ||||||
| 250 | Method of producing a spinel type ceramic sintered body | US880815 | 1986-07-01 | US4751208A | 1988-06-14 | Rokuro Aoki; Nobuo Takagi |
| A spinel type ceramic sintered body is provided starting from a chromiferous slag which is a waste discharged from sodium chromate production, said sintered body being reproducable by selecting the mole ratios of R.sub.2 O/MgO to 0.9-2.0 and SiO.sub.2 /MgO to 1-6 wherein R represents collectively Al, Fe and Cr, the sintered body having high thermal conductivity falling within the range of 1.3-2.5 kcal/mh.degree. C., specific electric resistance falling within the range of 10.sup.2 -10.sup.7 cm high mechanical strengths and unique coloration and which can be used as a functional tile. | ||||||
| 251 | Ceramic plates and method for the production thereof | US484724 | 1983-04-13 | US4495118A | 1985-01-22 | Hideo Ikami |
| Large and thin ceramic plates of, particularly at least 30.times.30 cm in size and not greater than 20 mm especially not greater than 8 mm in thickness and having oriented crystals are produced by a method comprising drawing a green body from an extruder in a curved shape, cutting and spreading the green body in a plate form, rolling the plates in the same direction as that of drawing, subjecting the rolled plates to the treatment with far infrared rays or high-frequency heating before the plates contain a moisture reduced to less than 15% while the plates are transferred in the same direction as that of drawing, drying the plates thus treated while the plates are further transferred in the same direction, and then firing the plates in a kiln. The ceramic plates are large and thin but nevertheless easy to handle. | ||||||
| 252 | Drying step in a method of producing ceramic articles | US22464 | 1979-03-21 | US4272894A | 1981-06-16 | Antonio Salviati |
| A method of drying green ceramic articles with a hot air stream in a drier, wherein the green articles, immediately or soon after entering the drier, are heated to 100.degree. C. while the moisture content thereof is maintained equal to that of the green articles at the beginning of heating step. | ||||||
| 253 | Ceramic composition for making stoneware products | US703605 | 1976-07-08 | US4119470A | 1978-10-10 | Dieter Hums |
| A ceramic composition capable of quick firing to form a stoneware product. The composition contains water, a clay component and a lime component. The clay component is a conventional stoneware clay. The lime component is a hydrothermally cured, highly porous lime-sand product having a major proportion of spherical pores. The lime-sand product can be a conventional lightweight cellular concrete product having a density of 0.4 to 0.8 g/cm.sup.3 and is preferably waste product resulting from the manufacture of lightweight concrete products. The composition is made by grinding the clay and lime-sand product, forming an aqueous slurry of the ground material, drying the slurry, and granulating the dried material. The granulated composition is utilized by pressing to shape, drying, and firing at a temperature of 900.degree. to 1100.degree. C for not more than 6 hours. The material is also suitable for conventional firing schedules. | ||||||
| 254 | Fired construction shapes and process and binder therefor | US468574 | 1974-05-06 | US3963506A | 1976-06-15 | Thomas Clifford Shutt; Howard Campbell |
| Structural clay products such as bricks, tile and blocks are made using waste soda lime glass, other inorganic materials and ball clay. The products are produced at the relatively low firing temperatures between 1300.degree. and 1900.degree.F and are of minimum porosity. | ||||||
| 255 | Method for drying ceramic tape | US511673 | 1974-10-03 | US3953703A | 1976-04-27 | Steven Hurwitt |
| In the manufacture of ceramic products by the tape casting process faster drying rates result from subjecting the layer of cast ceramic slip to high frequency electromagnetic energy evenly distributed along at least the initial portion of the length of a drying chamber and of sufficient intensity to heat the slip to a uniform cross-sectional temperature above the evaporation temperature of the solvent. The high frequency energy, preferably in the microwave range, raises the temperature of the cast slip uniformly to evaporate the volatile solvents from the interior without forming a barrier skin on the surface of the layer. For typical slip thickness, tape speed, and solvent composition, energy densities of about 1 watt per square inch will provide an optimum heating rate without boiling the solvent. | ||||||
| 256 | Sequestration of metal ions by the use of poly-alpha-hydroxyacrylates | US48354174 | 1974-06-27 | US3920570A | 1975-11-18 | MULDERS JULIEN |
| A process for sequestering metal ions by a polyelectrolyte, including presenting to the metal ions to be sequestered, as the sequestering polyelectrolyte, an alkali metal or ammonium salt of a poly- Alpha -hydroxyacrylic acid of the formula
WHERE R1 and R2 are selected from the group consisting of hydrogen and alkyl of between 1 and 3 carbon atoms, M is selected from the group consisting of alkali metal and ammonium, and n is a positive integer between 3 and a higher value such that substantial solubility is maintained. D R A W I N G |
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| 257 | Refractories | US40238173 | 1973-10-01 | US3912526A | 1975-10-14 | CLARK NORMAN OWEN |
| An improved process for producing a refractory material is described in which an aqueous suspension of a raw material is dewatered and the dewatered solid thus obtained is calcined to form the desired refractory, the improvement comprising dewatering the aqueous suspension of the raw material at a specified pressure.
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| 258 | Clay-attached micronutrients | US16809371 | 1971-08-02 | US3902886A | 1975-09-02 | BANIN AMOS |
| Cation-saturated clays such as iron-clay, zinc-clay, manganeseclay and copper-clay are utilized as a source of micronutrients for plants.
|
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| 259 | Sequestration of metal ions by the use of poly-alpha-hydroxyacrylates | US20796571 | 1971-12-14 | US3839215A | 1974-10-01 | MULDERS J |
| A process for sequestering metal ions by a polyelectrolyte, including presenting to the metal ions to be sequestered, as the sequestering polyelectrolyte, an alkali metal or ammonium salt of a poly- Alpha -hydroxyacrylic acid of the formula
WHERE R1 and R2 are selected from the group consisting of hydrogen and alkyl of between one and three carbon atoms, M is selected from the group consisting of alkali metal and ammonium, and n is a positive integer between 3 and a higher value such that substantial solubility is maintained. |
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| 260 | Method of lining metallurgical furnaces and a lining material | US33655673 | 1973-02-28 | US3837630A | 1974-09-24 | KOHL H; FORHAUSER S; HESS H; SCHIEFER P; MANTELL D; GRANITZKI K |
| A method of lining a metallurgical furnace particularly induction furnaces using a form which is placed at a spaced location from the furnace wall comprises filling the hollow space between the furnace wall and the form with a granular and dry refractory material, compacting the material, subjecting the compacted material to a ceramic sintering process by heating it to an intermediate termperature in the range of from about 300* to 800* C. until the material attains a sufficient stability of shape, thereafter removing the form and subjecting the refractory material to a further ceramic sintering process by further heating. A self supporting lining for the metallurgical furnaces comprises a highly compacted and dry structure of a refractory oxide or an oxide mixture to which a dry sintering agent is added and which has been consolidated at a temperature of from between 300* to 800* C.
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