| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Producing method of cement | JP34945699 | 1999-12-08 | JP2001163644A | 2001-06-19 | SUGAYA HIDEYUKI; GOTO KOJI |
| PROBLEM TO BE SOLVED: To provide a producing method of cement by which a mixing time is shortened, therethrough, the productivity of cement products, etc., is improved and the cement which retains the resistance for separation, is improved in fluidity and viscosity and has an excellent operability can be produced. SOLUTION: In this producing method of cement in which prescribed amounts of gypsum dihydrate is added to cement clinker which is carried out of a rotary kiln, and the cement clinker is pulverized by a finishing mill, the water, which includes a pulverizing assistant agent, of 0.3-2.0 wt.% with respect to the total amount of the cement clinker and the gypsum dihydrate is sprinkled, and the cement clinker and the gypsum dihydrate sprinkled with the water are pulverized in such a manner that the temperature of the cement at the outlet of the finishing mill comes to ≥120°C. COPYRIGHT: (C)2001,JPO | ||||||
| 62 | Treatment of by-produced gypsum | JP2343591 | 1991-02-18 | JPH0789752A | 1995-04-04 | PAURU KUREMENSU; EREN UANTSURA; GIYUNTAA FUIICHIYU; HERUMUUTO MAIYAA; DETOREEFU KUNTSUE; HANSUUYURUGEN HARUTOMAN; UORUFUGANGU SHIYUNERE |
| PURPOSE: To obtain a gypsum supplying material which has high strength and may be denatured in high activity by subjecting by-produced gypsum, more particularly REA-gypsum to a dehydration treatment under specific heat management conditions by using a fluidized bed. CONSTITUTION: The by-produced gypsum, more particularly REA-gypsum, having a grain size of 2000 μm or below is introduced into a fluidized bed reactor which the gypsum may be stirred. A hot gas is introduced into a cylindrical reaction space from a tangential direction to heat the gypsum in such a manner that the material temp. attains 333 to 363 K, more preferably 353 K. The dehydration reaction treatment is then executed in a reduced pressure range of 2.5 to 8 kPa, more preferably 4.5 kPa. The treatment is ended when the weight ratio of anhydride III based on the dehydration product attains 50 to 100%. Natural gypsum of a grain size of a plus sieve ≤5% of 200 μm may be incorporated into the introduced by-produced gypsum. Recycling of the reaction waste gas up to 30% into the introduced hot gas is possible. Up to 15 wt.% REA- gypsum and/or up to 60 wt.% fly ash may be added to the dehydration product of the anhydride III. COPYRIGHT: (C)1995,JPO | ||||||
| 63 | JPS6031786B2 - | JP13979982 | 1982-08-13 | JPS6031786B2 | 1985-07-24 | OOI NOBUKAZU; OONO KOJI; TOZAKI SATOSHI |
| 64 | Method of compressing plasterrbase mixture under pressure | JP1288978 | 1978-02-07 | JPS53124536A | 1978-10-31 | MISHIERU DARUIRU |
| 65 | Takoseisetsukoseikeibutsunoseizoho | JP10503975 | 1975-09-01 | JPS5150933A | 1976-05-06 | HANSU KIRI; KAARU BURENDORE; MARUTEIN MYUURAA; HAINRITSUHI HAINE |
| 66 | COMPOSITE GYPSUM BOARD AND METHODS RELATED THERETO | EP16738261.3 | 2016-06-22 | EP3313659A1 | 2018-05-02 | LI, Alfred C.; SONG, Weixin D.; SANG, Yijun; DIEFENBACHER, Gregg G.; VILINSKA, Annamaria; CHRIST, Brian J.; JONES, Frederick T.; TODD, Bradley W. |
| Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board. | ||||||
| 67 | PROCESS FOR MANUFACTURING ULTRA LOW CONSISTENCY ALPHA- AND BETA- BLEND STUCCO | EP07811478.2 | 2007-08-22 | EP2069243A2 | 2009-06-17 | YU, Qiang; LYNN Michael,R.; SONG Weixin,David; CLOUD, Michael, Lee; LIU, Qingxia |
| A process is disclosed for making a blend of alpha- and beta-stucco including a slurry calcination step to produce alpha calcium sulfate hemihydrate followed by a fluidized bed calcination step to produce beta calcium sulfate hemihydrate. The process starts with 50-75% gypsum-containing solids slurry, and then steam calcines the slurry in a first reactor to form partially calcined gypsum slurry which contains calcium sulfate dihydrate and alpha calcium sulfate hemihydrate. The partially calcined slurry is then dewatered. Then the filter cake is fed into a kettle to complete the calcination process by converting the calcium sulfate dihydrate of the filter cake material into beta calcium sulfate hemihydrate. | ||||||
| 68 | Verfahren zur Herstellung von Schwerlöslichem Calciumsulfat-Anhydrit-II | EP97112185.0 | 1997-07-16 | EP0832860B1 | 2001-03-07 | Morgenroth, Henning, Dr.; Glückler, Martin, Dr.; Hendan, Benedikt, Dr.; Koslowski, Thomas, Dr. |
| 69 | Verfahren zur Herstellung von Schwerlöslichem Calciumsulfat-Anhydrit-II | EP97112185.0 | 1997-07-16 | EP0832860A1 | 1998-04-01 | Morgenroth, Henning, Dr.; Glückler, Martin, Dr.; Hendan, Benedikt, Dr.; Koslowski, Thomas, Dr. |
Die Erfindung betrifft ein Verfahren zur Herstellung von schwerlöslichem Calciumsulfat-Anhydrit-II, bei dem feinteiliges Calciumsulfat-Dihydrat in trockenem Zustand in einem Calcinieraggregat durch entsprechende Wärmeeinwirkung entwässert, auf der Calciniertemperatur unter Wasserdampfatmosphäre gehalten und das calcinierte Material aufgemahlen wird. Hierbei wird das feinteilige Calciumsulfat-Dihydrat auf eine Temperatur von 580 bis 650°C erhitzt und auf dieser Temperatur unter Wasserdampfatmosphäre mit einem Wasserdampfpartialdruck < 0,2 bar während einer ausreichenden Haltezeit derart gehalten, daß ein Phasengemisch aus überwiegend schwerlöslichem Calciumsulfat-Anhydrit-II sowie einem geringeren Anteil an unlöslichem Calciumsulfat-Anhydrit-II und Calciumsulfat-Anhydrit-III gebildet wird, wobei das erhaltene Phasengemisch auf eine spezifische Oberfläche nach Blaine von > 4000 cm2/g aufgemahlen wird. |
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| 70 | Trockene Putzmörtelmischung | EP93120697.3 | 1993-12-23 | EP0611735A1 | 1994-08-24 | Enenkel, Wolfgang, Dipl.-Ing.; Deutsch, Peter, Dipl.-Ing. |
Beschrieben wird eine trockene Putzmörtelmischung mit Gips bzw. Gips-Kalk als Bindemittel und einem Gehalt an einem Rundgranulat aus Glas sowie Zuschlagstoffen und Stellmitteln, wobei das Rundgranulat aus Glas feinporig ist und in einer Menge von 0,5 bis 5 Gew.% und einer Körnung von 0,25 bis 1 mm vorliegt, daß sie weiterhin 3 bis 12 Gew.% einer Mischung aus Perlite, Kalksteinmehl und/oder Kalksteingries enthält, und daß es nach einer auf einen hohen Füllgrad ausgerichteten Sieblinie zum feinporigen Rundgranulat aus Glas passende Zuschlagstoffe enthält und der Gewichtsanteil des Bindemittels Gips oder Gips-Kalk 40 bis 95 Gew.% beträgt. |
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| 71 | Fliessestrich | EP92103661.2 | 1992-03-04 | EP0503451A1 | 1992-09-16 | Ruf, Heinz, Dr.; Limmer, Bärbel; Hüller, Rolf, Dr.; Wirsching, Franz, Dr. |
Der Fließestrich aus grob vermahlenem Naturanhydrit der Korngröße < 3 mm, Bindemitteln und üblichen Zusätzen, wie alkalische Anreger, Fließmittel sowie gegebenenfalls Verzögerer, enthält als Bindemittel 10 bis 25 Gew.-% feinstvermahlener Naturanhydrit mit einer Korngröße < 60 µm, vorzugsweise < 40 µm, sowie gewünschtenfalls zusätzlich als Bindemittel bis zu 20 Gew.-% Calciumsulfat-Halbhydrat, vorzugsweise α-Halbhydrat. |
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| 72 | Continuous production of gypsum board | EP90115340.3 | 1990-08-10 | EP0470288A3 | 1992-03-04 | Conroy, Alan P. |
A continuous process for the production of gypsum board of variable yet predictable density, wherein a fibrous form of stucco produced from gypsum crystals or fibers is combined with standard calcined gypsum and formed into the board. The density of the resultant board varies inversely with the content of fibrous stucco. The process yields lightweight boards suitable as standard wallboards and inorganic insulating boards. |
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| 73 | Continuous production of gypsum board | EP90115340.3 | 1990-08-10 | EP0470288A2 | 1992-02-12 | Conroy, Alan P. |
A continuous process for the production of gypsum board of variable yet predictable density, wherein a fibrous form of stucco produced from gypsum crystals or fibers is combined with standard calcined gypsum and formed into the board. The density of the resultant board varies inversely with the content of fibrous stucco. The process yields lightweight boards suitable as standard wallboards and inorganic insulating boards. |
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| 74 | A filling composition | EP84850142.5 | 1984-05-02 | EP0125226A1 | 1984-11-14 | Hoppe, Carl Axel Gustaf; Persson, Lars-Erik Herbert |
The present invention relates to a filling composition, which exhibits substantially no shrinkage tendencies when drying-out, the composition comprising 90-0 parts of dihydrate gypsum and 10-100 parts of anhydrite gypsum, and 50-110 parts by weight water for each 100 parts by weight gypsum. Further additives in the form of setting accelerators, setting inhibitors, wood-fibre substances and polyelectrolytes, together with other additives, may also be included in the composition. |
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| 75 | Plattenförmiges Bauelement mit einem Gipskern und einer Kartonummantelung | EP83109220.0 | 1983-09-17 | EP0111639A2 | 1984-06-27 | Deutsch, Peter, Dipl.-Ing.; Beck, Horst; Rennen, Heinz, Dr.; Hilscher, Gerald |
Beschrieben wird ein plattenförmiges Bauelement mit einem Gipskern und einer Kartonummantelung, wobei der Gipskern äus einer Vielzahl von Granalien besteht, die ähnlich wie bei der Gipskartonplattenherstellung auf die Rückseite des rinnenförmig gefalteten Ansichtsseitenkartons aufgetragen werden und wobei die Granalien gerade nur soviel Wasser enthalten, wie zur Rehydratisierung des Halbhydratgipses erforderlich ist und worauf diese Granalienschicht durch einen Karton abgedeckt und das Bauelement kalibriert wird; eine Trocknung im herkömmlichen Sinne ist nicht mehr erforderlich. |
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| 76 | PROCESS FOR MANUFACTURING ULTRA LOW CONSISTENCY ALPHA- AND BETA- BLEND STUCCO | EP07811478.2 | 2007-08-22 | EP2069243B1 | 2017-06-21 | YU, Qiang; LYNN Michael,R.; SONG Weixin,David; CLOUD, Michael, Lee; LIU, Qingxia |
| 77 | LOWER HEAT PROCESSED CALCIUM SULPHATES FOR EARLY STRENGTH CEMENTS AND GENERAL USE | EP14723903.2 | 2014-02-18 | EP3024794A1 | 2016-06-01 | Ozsüt, Mustafa |
| The Invention is related to increasing of early strength and final strengths of cements classified under EN and ASTM as Portland or CEM cements and also related to all clinker employing cements and to any kinds which employ calcium sulphates for set optimization and is for composing of new cements by only assesing new methods for production and is for composing of new cements by only assessing new methods to formation and inclusion of calcium sulphate resources which are used for set optimization.A new calcium sulphate resource is obtained by employing lower heats and this input is arranged to different dehydration levels at which they can be most efficient for the selected use. These different dehydration levels are called intermediate phases of dehydrate or hemihydrates or called as monohydrate.. The Invention clarifies a well defined reactivity power concept which was not defined by the existing scientific basis. As a result, cements which have much higher early strengths than the known could be produced. | ||||||
| 78 | PROCESS FOR MANUFACTURING ULTRA LOW CONSISTENCY ALPHA- AND BETA- BLEND STUCCO | EP07811478 | 2007-08-22 | EP2069243A4 | 2011-10-05 | YU QIANG; LYNN MICHAEL R; SONG WEIXIN DAVID; CLOUD MICHAEL LEE; LIU QINGXIA |
| 79 | IMPROVED GYPSUM-CONTAINING PRODUCTS CONTAINING ALPHA-HEMIHYDRATE | EP06789012.9 | 2006-08-01 | EP1928800A2 | 2008-06-11 | SONG, Weixin David; YU, Quiang; LIU, Qiangxia |
| The invention provides gypsum wallboard, made from gypsum-containing slurries having outstanding hydration rate characteristics comprising alpha-hemihydrate ground to a particular particle size distribution range and having a Blaine surface area in the range from about 3100 cm2/g to about 9000 cm2/g, alone or in combination with beta-hemihydrate. | ||||||
| 80 | COMPOSITE GYPSUM BOARD | EP96903230 | 1996-02-23 | EP0811585A4 | 1998-05-20 | NAGATA NORIFUMI; TANABE SHINKICHI; NAKAKUKI YOSHIKAZU; MASUDA KENTA; UCHIYAMA KENICHI; AIKAWA MASAYUKI; SASANO TETSURO |
| A composite gypsum board comprising a gypsum material and a filler, characterized in that the filler contains paper chips and/or a paper chip assembly as the essential component, the paper chips and/or the chip assembly being arranged substantially parallel to the plane perpendicular to the thicknesswise direction of the board. A process for preparing the board is also provided. The board has markedly improved bending strength and resistance to pulling out of screws and nails. Further, it is valuable also from the viewpoint of effective utilization of wastes, a problem awaiting solution in recent years. | ||||||
