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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201 | CORDIERITE FILTERS WITH REDUCED PRESSURE DROP | EP04750684.5 | 2004-04-26 | EP1639236A2 | 2006-03-29 | MERKEL, Gregory, A; TAO, Tinghong |
A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25-800˚C) of less than 13x10-7/˚C, a bulk filter density of less than 0.60 g/cm3, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm≤3.75, wherein Pm is equal to 10.2474{1/[(d50)2 (%porosity/100)]} + 0.0366183(d90) - 0.00040119(d90)2 + 0.468815(100/%porosity)2 + 0.0297715(d50) + 1.61639(d50-d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10 < d50 < d90. A method of making the same is also provided. | ||||||
202 | FABRICATION OF ULTRA LOW THERMAL EXPANSION CORDIERITE STRUCTURES | EP99965944.4 | 1999-11-30 | EP1144334B1 | 2005-08-31 | BEALL, Douglas, M.; MERKEL, Gregory, A. |
203 | Verfahren zum Ausbessern von fehlerhaften Vertiefungen in Keramikgütern | EP01123841.7 | 2001-10-05 | EP1201626B1 | 2005-06-29 | Lenhart, Armin, Prof. Dr. |
204 | HIGH MOLECULAR WEIGHT ADDITIVES FOR CALCINED GYPSUM AND CEMENTITIOUS COMPOSITIONS | EP03718076.7 | 2003-03-27 | EP1487756A1 | 2004-12-22 | LETTKEMAN, Dennis, Mark; WHITESIDE, Eldon, L.; BEDWELL, William, K.; KALIGIAN, Raymond, A., II |
A mixture is used in conjunction with water is used for preparing a slurry that hydrates to form an exterior gypsum cement. The mixture includes 30-70 % by weight hydraulic cement, 30-70 % by weight calcined gypsum and 0.05-2.5 % polycarboxylate. When the mixture is added to water less than 40 weight % based on the weight of the mixture, a slurry is formed that expands very little while it cures. | ||||||
205 | CORDIERITE CERAMIC HONEYCOMB OF LOW THERMAL EXPANSION AND METHOD FOR MANUFACTURING THE SAME | EP01919815 | 2001-04-06 | EP1270531A4 | 2004-11-17 | NOGUCHI YASUSHI; MAKINO KYOKO |
A cordierite ceramic honeycomb having a low thermal expansion, characterized in that it comprises 60 % or more of a codierite crystal phase and 30 % or less of an indialite crystal phase, wherein the sum of cordierite and indialite phases accounts for 85 % or more of the total phase thereof; and a method for manufacturing the honey comb, wherein a raw material batch is provided by admixing a raw material with a forming aid, the batch is formed by extrusion, dried and then subjected to firing, characterized in that, in the firing step, the rate of the decrease in temperature from the maximum to 1300 DEG C is 100 DEG C/hr or less. The low thermal expansion of the ceramic honey comb has been achieved by controlling its crystal phase through adjusting the temperature during the formation of its crystal. | ||||||
206 | HIGH PERFORMANCE ELASTOMER-CONTAINING CONCRETE MATERIAL | EP02718776.4 | 2002-01-04 | EP1351898A2 | 2003-10-15 | FRENKEL, David, Yakovlevich |
A concrete material that includes an elastomeric polymer in an amount sufficient to provide flexibility to the resultant material; a silicone resin in an amount sufficient to improve adhesion between the elastomeric polymer and the cement; a cement that has low shrinkage and expansion properties; a filler; and water in an amount sufficient to cure the cement and form the concrete material. The polymer is present in an amount which fills at least some of the pores in the material and the silicone resin helps the polymer bond the filler to the cement. Also, a concrete material property improving additive in the form of a polymer admixture that includes the elastomeric polymer, a silicone resin and at least one solvent in an amount sufficient to form a viscous flowable mass. Another embodiment is a method of forming a concrete material by forming and curing a mixture of the additive, a cement that has low shrinkage and expansion properties, a filler, and water in an amount sufficient to cure the cement. Another embodiment is a method of repairing a crack or fracture in a concrete or cement surface by cleaning surfaces of the crack or fracture to remove loose material and to create a cavity, applying the concrete material of the invention under pressure into the cavity, and allowing the concrete material to cure to repair the crack or fracture. The resultant repaired surface forms yet another embodiment of the invention. | ||||||
207 | Procédé de traitement et d'utilisation d'un mâchefer résultant de l'incinération d'ordures ménagères | EP99402533.6 | 1999-10-14 | EP0994082B1 | 2003-05-02 | Basuyau, Vincent Cabinet Christian Schmit&Associés |
208 | Cordierite honeycomb ceramics and method producing the same | EP95301436.2 | 1995-03-06 | EP0671369A3 | 1997-11-12 | 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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209 | HIGH POROSITY CERAMIC HONEYCOMB ARTICLE CONTAINING RARE EARTH OXIDE AND METHOD OF MANUFACTURING SAME | EP08779779.1 | 2008-06-26 | EP2160370B1 | 2018-05-23 | BEALL, Douglas, M; BROCHETON, Yves, A.; MERKEL, Gregory, A. |
The present invention describes a high porosity (% P≧45%), refractory, ceramic article comprising a cordierite ceramic phase and at least about 0.1 wt. % of a rare earth oxide, such as yttrium oxide or lanthanum oxide. When compared to typical high-porosity cordierite articles, the articles of the present invention may exhibit relatively high strength, relatively low microcracking, relatively high strain tolerance (MOR/E), and/or relatively high thermal shock resistance (TSP). | ||||||
210 | METHOD OF MANUFACTURING POROUS CERAMIC FILTERS USING REACTIVE BINDERS | EP07753271.1 | 2007-03-16 | EP2001820B1 | 2017-05-03 | MIAO, Weiguo; WANG, Jianguo |
211 | SCHNELLTROCKNENDE BAUSTOFFZUSAMMENSETZUNG AUF BASIS EINES MINERALISCHEN HYBRIDBINDEMITTELS | EP15741864.1 | 2015-03-30 | EP3126308A1 | 2017-02-08 | MOTZET, Hubert; BÖRSTING, Wolfgang; KNOEBEL, Markus; MEINERSMANN, Thomas |
The invention relates to a quick-drying gypsum composition, in particular for use as gypsum filling compound and for the production of floorcoverings, wherein the gypsum composition contains 20 to 70% of a mixture of calcium aluminate and calcium sulfate hemihydrate and/or anhydrite and/or calcium sulfate dihydrate as hydraulic binders and 30 to 80% by weight of fillers, and wherein the weight ratio of calcium aluminate to calcium sulfate hemihydrate and/or anhydrite and/or calcium sulfate dihydrate binders lies in the range from 1:1 to 1:5. Gypsum compositions of this type are characterized by a particularly beneficial shrinkage behavior, such that stresses and cracks in the dried composition can be avoided. At the same time, the gypsum compositions dry to readiness for covering in a time that is compatible with conventional cement filling compounds. | ||||||
212 | PRODUCT | EP12836123 | 2012-09-28 | EP2760804A4 | 2015-06-03 | SAGOE-CRENTSIL KWESI KURENTSIR; DEVENISH DAVID ALAN; SHAPIRO GENRIETTA; YAN SHIQIN; GESTHUIZEN LEIGH; BROWN TREVOR |
A method for manufacturing a cellular geopolymer product, which method comprises the steps: (a) forming an activated geopolymer premix by addition to a geopolymer premix of an activator compound that initiates a condensation reaction in the geopolymer premix; (b) casting the activated geopolymer premix in a desired configuration; and (c) generating gas bubbles in the activated geopolymer premix as the condensation reaction proceeds and the activated geopolymer premix stiffens to produce a self-supporting cellular structure; and (d) curing the self-supporting cellular structure to produce the cellular geopolymer product, wherein in step (c) the characteristics of the activated geopolymer premix and the reaction kinetics of the condensation reaction are controlled to achieve formation of the self-supporting cellular structure. | ||||||
213 | COMPOSITIONS AND METHODS FOR WELL COMPLETIONS | EP10745185.8 | 2010-08-18 | EP2606013A1 | 2013-06-26 | LOISEAU, Anthony; CHOUGNET-SIRAPIAN, Alice; TOMILINA, Elena; JAMES, Simon |
Incorporation of carbonaceous materials in a cement slurry increases the linear thermal- expansion coefficient of the set cement. When placed in a subterranean well having at least one casing string, cement sheaths with linear thermal-expansion coefficients similar to that of the casing will be subjected to lower compressive and tensile stresses during downhole-temperature changes. Such cement slurries are particularly advantageous in the context of thermal -recovery wells. | ||||||
214 | Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same | EP13152854.9 | 2007-06-27 | EP2594543A2 | 2013-05-22 | 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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215 | METHODS FOR FORMING CERAMIC HONEYCOMB ARTICLES | EP11724875.7 | 2011-05-26 | EP2576479A2 | 2013-04-10 | MIAO, Weiguo; WANG, Jianguo |
Processes for manufacturing porous ceramic honeycomb articles are disclosed. The processes include mixing a batch of inorganic components with processing aids to form a plasticized batch. The batch of inorganic components include talc having dpt50≦̸10 μm, a silica-forming source having dps50≦̸20 μm, an alumina-forming source having a median particle diameter dpa50 of less than or equal to 10.0 μm, and a pore former having dpp50≦̸20 μm. The plasticized batch is formed into a green honeycomb article and fired under conditions effective to form a porous ceramic honeycomb article comprising a cordierite crystal phase and having a microcrack parameter (Nb3) of from about 0.05 to about 0.25. After firing, the green honeycomb article the porous ceramic honeycomb article is exposed to a microcracking condition, which increases the microcrack parameter (Nb3) by at least 20%. | ||||||
216 | HIGH POROSITY CORDIERITE COMPOSITION | EP07756175.1 | 2007-05-02 | EP2016033B1 | 2012-02-29 | 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. | ||||||
217 | IMROVED DIESEL PARTICULATE FILTER | EP07810664.8 | 2007-07-20 | EP2046696B1 | 2011-05-11 | 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. | ||||||
218 | CEMENTITIOUS COMPOSITION AND CONCRETE OF SUCH COMPOSITION | EP06747622 | 2006-04-26 | EP1883611A4 | 2011-01-26 | EIDE HALLVAR |
A cementitious composition comprising an hydraulic cement and one or more aggregates being added to or mixed with the cement and water. The cement contains more than 20 percent of weight micronized aplite. | ||||||
219 | Honeycomb filter | EP06020401.3 | 2006-09-28 | EP1769838B1 | 2010-04-14 | Hayakawa, Syuhei |
220 | CORDIERITE FILTERS WITH REDUCED PRESSURE DROP | EP04750684 | 2004-04-26 | EP1639236A4 | 2009-05-13 | MERKEL GREGORY A; TAO TINGHONG |
A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25-800˚C) of less than 13x10<-7>/˚C, a bulk filter density of less than 0.60 g/cm<3>, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm<=3.75, WHEREIN Pm is equal to 10.2474{1/[(d50)<2> (%porosity/100)]} + 0.0366183(d90) - 0.00040119(d90)<2> + 0.468815(100/%porosity)<2> + 0.0297715(d50) + 1.61639(d50-d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10 < D50 < D90. A method of making the same is also provided. |