序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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141 | Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same | EP13152854.9 | 2007-06-27 | EP2594543A3 | 2016-05-25 | Merkel, Gregory A.; Tepesch, Patrick D.; Wusirika, Raja R. |
Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same. |
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142 | HONEYCOMB STRUCTURE | EP15157949.7 | 2015-03-06 | EP2918341A1 | 2015-09-16 | Hosoi, Yusuke; Watanabe, Tsuyoshi; Inoue, Takayuki |
There is disclosed a honeycomb structure which is a catalyst carrier, also functions as a heater when a voltage is applied thereto, can inhibit an unevenness of a temperature distribution, and is excellent in thermal shock resistance. The honeycomb structure includes a honeycomb structure body 4 and a pair of electrode members 21 disposed on a side surface 5 of the honeycomb structure body 4, each of the pair of electrode members 21 is shaped in the form of a band extending in a cell extending direction of the honeycomb structure body 4, and in a cross section perpendicular to the extending direction of cells 2, one electrode member 21 is disposed on a side opposite to the other electrode member 21 via a center of the honeycomb structure body 4, one or more slits 6 opened in the side surface 5 are formed in the honeycomb structure body 4, the honeycomb structure body 4 has a charging material 7 charged into the at least one slit 6, the charging material 7 contains aggregates and a neck material, and a ratio (α2/α1) of a thermal expansion coefficient α2 of the charging material 7 to a thermal expansion coefficient α1 of the honeycomb structure body 4 is from 0.6 to 1.5. |
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143 | ALUMINUM TITANATE CERAMIC ARTICLES | EP05812348.0 | 2005-03-22 | EP1737554B1 | 2014-10-29 | ELLISON, Adam, J.; TEPESCH, Patrick, D.; WARREN, Christopher, J. |
144 | VERFAHREN ZUR HERSTELLUNG EINER DENTAL-RESTAURATION MITTELS CAD-CAST-VERFAHREN | EP11805530.0 | 2011-12-23 | EP2655287A2 | 2013-10-30 | DIERKES, Stephan; SEIFERT, Severin; STRIETZEL, Roland |
A method for producing a dental restoration (D) by CAD casting is described, said method comprising the steps of a) recording three-dimensional, digital data of the dentition or of part of the dentition of a patient, b) creating a virtual dental restoration (VD) using the recorded three-dimensional, digital data, wherein the virtual dental restoration (VD) is expanded in relation to the dental restoration (D) to be produced, c) preparing a model (M) using the created virtual dental restoration, such that the model (M) is expanded in relation to the dental restoration (D) to be produced, d) embedding the model (M) in an embedding compound (EM), e) hardening the embedding compound (EM) and removing the model (M), such that a casting mould is obtained, f) filling the casting mould, preferably by pouring, with a casting material (GM) and cooling the casting material (GM), such that the dental restoration (D) is obtained, and optionally the further steps of g) working the dental restoration (D), and h) veneering the dental restoration (D). A novel embedding compound (EM) is also described that has no expansion or at least only a slight expansion on setting. | ||||||
145 | HIGH STRENGTH FLOORING COMPOSITIONS | EP03745634.0 | 2003-03-27 | EP1485330B1 | 2011-01-19 | LETTKEMAN, Dennis, Mark; WHITESIDE, Eldon, L.; BEDWELL, William, K.; KALIGIAN, Raymond, A., II; MEISEMAN, Sharon |
A composition is disclosed for a mixture to be used in conjunction with water for preparing a slurry that hydrates to form a high strength flooring compound. The mixture includes from about 50% to about 98% by weight calcium sulfate hemihydrate, having at least 25% of the calcium sulfate hemihydrate in the beta-calcined form. A polycarboxylate dispersant is included in the mixture in amounts from about 0.2% to about 10% by weight. The mixture also includes 0.05-50% by weight enhancing component. When combined with recommended amounts of water, a slurry is formed that is useful as a flooring composition. | ||||||
146 | HIGH POROSITY CORDIERITE COMPOSITION | EP07756175.1 | 2007-05-02 | EP2016033A2 | 2009-01-21 | MIAO, Weiguo; OGUNWUMI, Steven, B.; SHUSTACK, Paul, J.; WANG, Jianguo |
Disclosed are ceramic articles, which in one aspect are composed predominately of a cordierite having a composition close to that of Mg2Al4Si5O18. The ceramic articles possess a microstructure characterized by a unique combination of relatively high porosity and relatively narrow pore size distribution, both as measured by mercury porosimetry, that render the ceramic structure useful for ceramic filter applications requiring high thermal durability and high filtration efficiency coupled with low pressure drop along the length of the filter. Such ceramic bodies are particularly well suited for filtration applications, such as diesel exhaust filters or DPFs. Also disclosed are methods for the manufacture of the ceramic articles described herein. | ||||||
147 | ALUMINUM TITANATE CERAMIC ARTICLES AND METHODS OF MAKING SAME | EP05812348.0 | 2005-03-22 | EP1737554A2 | 2007-01-03 | ELLISON, Adam, J.; TEPESCH, Patrick, D.; WARREN, Christopher, J. |
An aluminum titanate ceramic article having a predominant crystal phase of aluminum titanate and a material composition including aluminum, titanium, silica, an alkaline earth metal (e.g., at least one selected from the group of strontium, calcium, barium, or combinations), and a rare earth metal (e.g., at least one selected from the group consisting of yttrium, lanthanum, and combinations) and methods of making such aluminum titanate bodies are described. An oxide of yttrium metal or lanthanide metals is preferably used as a sintering aid in combination with the other compositional components to enable firing of the resulting green body at a lower heating temperature of less than 1500° C., and more preferably between 1400°-1450° C., with a preferable hold time of less than 8 hours, more preferably of 6 to 8 hours. | ||||||
148 | FABRICATION OF LOW THERMAL EXPANSION, HIGH STRENGTH CORDIERITE STRUCTURES | EP99961650 | 1999-11-10 | EP1133457A4 | 2006-04-19 | BEALL DOUGLAS M; MURTAGH MARTIN J |
The present invention is directed at sintered ceramic articles exhibiting a crystalline phase assemblage comprising, by weight, of 65-95 % cordierite and 5-35 % of a secondary phase selected from the group consisting of mullite, magnesium-aluminate spinel, and sapphirine and having a bulk analytical composition consisting esentially of about, by weight, 32-51 % SiO2, 35-49 % Al2O3, 7-16% MgO. Furthermore, the ceramic articles exhibit an effective strength of greater than about 3000, a CTE of less than about 15x10-7/°C, over the temperature range of 25 °C to 1000 °C, and a total intrusion porosity, as measured by a Hg intrusion method, of at least 20 %. This invention also relates to a method for producing a sintered ceramic article having the aforementioned cordierite and secondary minor phase mixture. | ||||||
149 | HIGH STRENGTH FLOORING COMPOSITIONS | EP03745634.0 | 2003-03-27 | EP1485330A1 | 2004-12-15 | LETTKEMAN, Dennis, Mark; WHITESIDE, Eldon, L.; BEDWELL, William, K.; KALIGIAN, Raymond, A., II; MEISEMAN, Sharon |
A composition is disclosed for a mixture to be used in conjunction with water for preparing a slurry that hydrates to form a high strength flooring compound. The mixture includes from about 50% to about 98% by weight calcium sulfate hemihydrate, having at least 25% of the calcium sulfate hemihydrate in the beta-calcined form. A polycarboxylate dispersant is included in the mixture in amounts from about 0.2% to about 10% by weight. The mixture also includes 0.05-50% by weight enhancing component. When combined with recommended amounts of water, a slurry is formed that is useful as a flooring composition. | ||||||
150 | Zementgebundene Fliessestriche | EP04003785.5 | 2004-02-19 | EP1452503A1 | 2004-09-01 | Wagner, Volker |
Die vorliegende Erfindung betrifft einen zementgebundenen Fließestrich aus Zement, Zuschlagstoffen, Zusatzmitteln und Wasser, wobei die Mischung 200 bis 500 kg/m3 Gesteinsmehl einer maximalen Korngröße von 0,09 mm und einer durchschnittlichen Korngröße von 0,03 bis 0,05 mm enthält und als Zusatzmittel eine Mischung aus einem Fließmittel mit einer Dosierung von 0,5 bis 6 %, Aluminiumpulver mit einer Dosierung von 0,02 bis 0,25 % und einer Kunststoffdispersion mit einer Dosierung von 1 bis 3 %, jeweils bezogen auf das Zementgewicht, enthalten ist. |
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151 | LOW EXPANSION, HIGH POROSITY, HIGH STRENGTH CORDIERITE BODY AND METHOD | EP00944627 | 2000-06-08 | EP1200369A4 | 2004-05-26 | BEALL DOUGLAS M; MALARKEY CHRISTOPHER J; MERKEL GREGORY A |
A sintered ceramic that exhibits an average linear coefficient of thermal expansion (25-800°C) below about 5.0x10-7°C-1, a total porosity between the range of 20% to about 30%. Furthermore, the sintered ceramic article exhibits a pore size distribution such that at least about 86% of pores are of a pore size of less than about 2νm. Lastly, the ceramic article exhibits an interconnected pore structure with the pores exhibiting a generally elongated shape, i.e., the pores are predominately oriented with their long axis in the plane of the webs. This invention also relates to a method for producing a sintered cordierite ceramic article involving first compounding and plasticizing a cordierite-forming inorganic powder batch comprising a platy talc having median particle of size less than about 2νm, and preferably a talc morphology index greater than about 0.75. The batch further comprises at least 4% by weight of the inorganic powder batch mixture of a dispersible A1¿2?O3-forming source having a specific surface area in excess of 50m?2¿/g and one or more of the components of kaolin, calcined kaolin, silica, and corundum, each having a median particle sizes less than 5νm. The plasticized powder batch thus provided is next formed into a green honeycomb by extrusion through a honeycomb extrusion die and the green honeycomb is fired to a temperature and for a time sufficient to convert the green honeycomb into a crystallized cordierite ceramic article having the aforementioned properties. | ||||||
152 | CORDIERITE CERAMIC HONEYCOMB OF LOW THERMAL EXPANSION AND METHOD FOR MANUFACTURING THE SAME | EP01919815.9 | 2001-04-06 | EP1270531A1 | 2003-01-02 | NOGUCHI, Yasushi, c/o NGK INSULATORS, LTD.; MAKINO, Kyoko, c/o NGK INSULATORS, LTD. |
A low thermal expansion cordierite ceramic honeycomb is obtained by controlling crystal phases in such a manner that a cordierite crystal phase is not lower than 60% and an indialite crystal phase is not greater than 30%, wherein a sum of the cordierite crystal phase and the indialite crystal phase is not lower than 85%. Moreover, to this end, a method of producing the low thermal expansion cordierite ceramic honeycomb, having the steps of mixing raw materials and forming agents to obtain a raw materials batch, extruding and drying the raw material batch to obtain a formed body, and sintering the formed body, is characterized in that, during the sintering step, a temperature descending rate at least from a maximum temperature to 1300°C is not greater than 100°C/hour. |
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153 | LOW EXPANSION, HIGH POROSITY, HIGH STRENGTH CORDIERITE BODY AND METHOD | EP00944627.9 | 2000-06-08 | EP1200369A1 | 2002-05-02 | BEALL, Douglas, M.; MALARKEY, Christopher, J.; MERKEL, Gregory, A. |
A sintered ceramic that exhibits an average linear coefficient of thermal expansion (25-800°C) below about 5.0x10-7°C-1, a total porosity between the range of 20% to about 30%. Furthermore, the sintered ceramic article exhibits a pore size distribution such that at least about 86% of pores are of a pore size of less than about 2νm. Lastly, the ceramic article exhibits an interconnected pore structure with the pores exhibiting a generally elongated shape, i.e., the pores are predominately oriented with their long axis in the plane of the webs. This invention also relates to a method for producing a sintered cordierite ceramic article involving first compounding and plasticizing a cordierite-forming inorganic powder batch comprising a platy talc having median particle of size less than about 2νm, and preferably a talc morphology index greater than about 0.75. The batch further comprises at least 4% by weight of the inorganic powder batch mixture of a dispersible A1¿2?O3-forming source having a specific surface area in excess of 50m?2¿/g and one or more of the components of kaolin, calcined kaolin, silica, and corundum, each having a median particle sizes less than 5νm. The plasticized powder batch thus provided is next formed into a green honeycomb by extrusion through a honeycomb extrusion die and the green honeycomb is fired to a temperature and for a time sufficient to convert the green honeycomb into a crystallized cordierite ceramic article having the aforementioned properties. | ||||||
154 | DIMENSION STABLE BINDING AGENT SYSTEMS | EP99956443.8 | 1999-10-08 | EP1121087A1 | 2001-08-08 | KRAFT, Lars; HERMANSSON, Leif |
Chemically bound ceramic system, the binder phase of which essentially consisting of a cement based system, which material comprises one or more expansion compensating additives adapted to give the material dimension stable long time properties. | ||||||
155 | Procédé de traitement et d'utilisation d'un mâchefer résultant de l'incinération d'ordures ménagères | EP99402533.6 | 1999-10-14 | EP0994082A1 | 2000-04-19 | Basuyau, Vincent Cabinet Christian Schmit&Associés |
Pour résoudre les problèmes de gonflement qui naissent dans tous les mâchefers, traités ou non avec du ciment, on montre qu'il faut les traiter avec un ciment de type CPA, ciment portland artificiel, à grande qualité mécanique. Pour permettre une utilisation du mâchefer traité en technique routière, on utilisera de préférence un tel ciment dans lequel l'aluminium tricalcique comme composant minéral sera dans une proportion très faible, de préférence inférieure ou égale à 2 %. En outre à titre de perfectionnement, on adjoindra à ces ciments CPA un retardateur de prise. |
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156 | Cordierite honeycomb ceramics and method producing the same | EP95301436.2 | 1995-03-06 | EP0671369A2 | 1995-09-13 | Kotani, Wataru; Ono, Yoshiro; Kumazawa, Kazuhiko, NGK Takeda-Kita-Shataku |
Cordierite honeycomb ceramics comprises a cordierite phase as a main ingredient. A value of [Fe2O3 wt%/(MgO wt%+Fe2O3 wt%)]x100 is 2-10, where a ferric component is calculated as Fe2O3. A thermal expansion coefficient of the cordierite honeycomb ceramics is less than 0.5x10-6/°C within a temperature range of 40-800°C in a direction parallel to a flow passage of a honeycomb body. In the cordierite honeycomb ceramics including a ferric component, a ferric component is added from a talc as raw materials. The cordierite honeycomb ceramics having a low thermal expansion coefficient is obtained by mixing raw materials for cordierite generation to obtain a batch, extruding the batch into a honeycomb formed body, drying the honeycomb formed body, and firing the dried honeycomb formed body at a temperature range of 1350-1450°C. After that, the sintered honeycomb body is immersed in an acid solution if necessary. |
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157 | IMROVED DIESEL PARTICULATE FILTER | PCT/US2007016488 | 2007-07-20 | WO2008011167A3 | 2008-06-05 | PYZIK ALEKSANDER JOZEF; NEWMAN ROBERT ALAN; SHINKEL NICHOLAS MYRON |
An improved particulate filtration system has an inlet, for the fluid to be filtered, connected to a housing containing a filter medium such that the fluid passes through the filter medium, and an outlet for the filtered fluid to exit. The filtration system's improvement is the filter medium being comprised of a porous ceramic of fused platelet grains. In a particular embodiment, the porous ceramic is a celsian porous ceramic, where the celsian grains have a hexagonal morphology and display a continuous volume thermal expansion coefficient from 100°C to 1000°C. | ||||||
158 | HIGH STRENGTH FLOORING COMPOSITIONS | PCT/US0309400 | 2003-03-27 | WO03082766A8 | 2004-02-12 | LETTKEMAN DENNIS MARK; WHITESIDE ELDON L; BEDWELL WILLIAM K; KALIGIAN RAYMOND A II; MEISEMAN SHARON |
A composition is disclosed for a mixture to be used in conjunction with water for preparing a slurry that hydrates to form a high strength flooring compound. The mixture includes from about 50% to about 98% by weight calcium sulfate hemihydrate, having at least 25% of the calcium sulfate hemihydrate in the beta-calcined form. A polycarboxylate dispersant is included in the mixture in amounts from about 0.2% to about 10% by weight. The mixture also includes 0.05-50% by weight enhancing component. When combined with recommended amounts of water, a slurry is formed that is useful as a flooring composition. | ||||||
159 | セラミックにおける細孔形成のための架橋澱粉 | JP2016522780 | 2014-10-15 | JP2016534001A | 2016-11-04 | アラン ルイス,マーク; オラム,パスカル; ウェイン タナー,キャメロン; マリー ヴィレノ,エリザベス |
本明細書において:少なくとも1つのセラミック成形用粉末;少なくとも1つのバインダ;及び追加添加として少なくとも約20重量%の量で存在する少なくとも1つの架橋澱粉を含む未焼成体を開示する。本明細書において:少なくとも1つのセラミック成形用粉末、少なくとも1つの溶媒、少なくとも1つのバインダ、及び追加添加として少なくとも約20重量%の量で存在する少なくとも1つの架橋澱粉を混合してバッチ組成物を形成するステップ;上記バッチ組成物を押出成形して未焼成体を形成するステップ;上記未焼成体を乾燥させるステップ;並びに上記未焼成体を焼成して多孔質セラミック体を形成するステップを含む、多孔質セラミック体を作製する方法を更に開示する。また、本明細書において、多孔質セラミック体を作製するために未焼成体をスクリーニングする方法を開示する。 | ||||||
160 | ハニカム構造体 | JP2014050842 | 2014-03-13 | JP2015174011A | 2015-10-05 | 細井 祐介; 渡邊 剛; 井上 崇行 |
【課題】触媒担体であると共に電圧を印加することによりヒーターとしても機能し、温度分布の偏りを抑制することができると共に耐熱衝撃性に優れたハニカム構造体を提供する。 【解決手段】ハニカム構造部4と、ハニカム構造部4の側面5に配設された一対の電極部21とを備え、一対の電極部21のそれぞれが、ハニカム構造部4のセルの延びる方向に延びる帯状に形成され、セル2の延びる方向に直交する断面において、一方の電極部21が、他方の電極部21に対して、ハニカム構造部4の中心を挟んで反対側に配設され、ハニカム構造部4に、側面5に開口するスリット6が1本以上形成され、ハニカム構造部4が、少なくとも1本のスリット6に充填された充填材7を有し、充填材7が、骨材と、ネック材とを含有し、ハニカム構造部4の熱膨張係数α1に対する、充填材7の熱膨張係数α2の比率(α2/α1)が、0.6〜1.5である。 【選択図】図1 |