| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 06/23/2010 | CN101746978A Plaster calcining furnace |
| 06/22/2010 | US7740700 Primer layer of polyvinyl alcohol catalyst, Portland cement, and sand; veneer layer comprises a mixture of magnesium sulfate, filler, magnesium oxide, gypsum cement, and polyvinyl alcohol catalyst; tiles, panels; coatings with improved durability |
| 06/16/2010 | CN101734871A Method for preparing alpha semi-hydrated gypsum by utilizing desulfurized gypsum |
| 06/16/2010 | CN101734870A Production method of semi-hydrated gypsum powder |
| 06/16/2010 | CN101255024B Method for producing architectural gypsum by lemon acid gypsum |
| 06/15/2010 | CA2413602C Quick binder for self-compacting concrete, use and applications of same |
| 06/10/2010 | WO2009064602A8 Wet-grinding gypsum with polycarboxylates |
| 06/09/2010 | CN101730671A Gypsum based compositions |
| 06/08/2010 | US7731794 lightweight, high strength gupsum wallboard is made of a set gypsum containing slurry, between two parallel sheet, including stucco, a pregelatinized starch, formaldehyde-naphthalenesulfonate condensate, dispersant, and sodium trimetaphosphate; low dusting |
| 06/08/2010 | US7731792 Adding pulp sludge ashes and water to waste gypsum generated from the treatment of acidic wastewater with calcium hydroxide; precipitating sludge, and mixing the precipitated sludge with pulp sludge ashes having pozzolanic properties |
| 06/02/2010 | CN101717213A Soil body reinforcing agent and preparation method and application thereof |
| 06/02/2010 | CN101717212A Gypsum rotary kiln with residual heat utilizing device |
| 06/02/2010 | CN101717211A Gypsum rotary kiln with smoke and powder purifying device |
| 06/02/2010 | CN101716454A Process for desulphurizing and dedusting catalytic cracking regenerated smoke |
| 05/26/2010 | EP1377532B1 Cementitious compositions and a method of their use |
| 05/19/2010 | CN101708967A Preparation method of semi-hydrated gypsum |
| 05/18/2010 | US7718019 introducing a heat resistant accelerator (HRA) slurry into a post-mixer aqueous dispersion of calcined gypsum in a discharge apparatus; aqueous dispersion is discharged from the second mixing device into a discharge apparatus; the HRA slurry is introduced into the discharge apparatus |
| 05/14/2010 | WO2010054309A1 Wax emulsion for use in building products |
| 04/20/2010 | CA2361847C Implant comprising calcium cement and hydrophobic liquid |
| 04/14/2010 | EP2173680A1 Plant for producing a multi-component sulphate-containing binder having high mechanical performances, from gypsum and/or derivatives thereof, process for manufacturing such a binder and resulting binder |
| 04/14/2010 | CN101693614A ceramic-like coating |
| 04/14/2010 | CN101693604A Batching apparatus of wet desulfurization gypsum |
| 04/13/2010 | US7695561 including forming calcium sulfate dihydrate (CaSO4.2H2O) into a briquette, calcining the briquette to transform the calcium sulfate dihydrate to calcium sulfate hemihydrate [alpha-type], drying and grinding |
| 04/07/2010 | CN101691453A Method for whitening natural anhydrite |
| 04/07/2010 | CN101691286A Alpha-type semi-hydrated gypsum autoclave and production method thereof |
| 04/07/2010 | CN101293749B Method for preparing desulfurization gypsum beta-powder |
| 03/25/2010 | US20100072294 Set accelerator and technique for spraying with the same |
| 03/24/2010 | CN201427930Y Gypsum calcining furnace |
| 03/24/2010 | CN101679115A Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| 03/18/2010 | WO2010028847A1 Method and system for the production of hard plaster |
| 03/18/2010 | WO2010006997A3 Process for manufacturing a monosulphonate aluminate cement and resulting binder |
| 03/18/2010 | CA2737065A1 Method and system for the production of hard plaster |
| 03/17/2010 | EP2163532A1 Method and device for manufacturing stone plaster |
| 03/17/2010 | CN101671135A Curing method of industrial waste gypsum |
| 03/16/2010 | US7678189 Mixing plaster of Paris and calcium carbonate, supplying water, and adding phosphoric acid to react with the calcium carbonate and release gaseous carbon dioxide; hydration of plaster to gypsum; cut blocks used for reinforcement of steel beams,insoluble iron phosphate coatings formed;construction |
| 03/11/2010 | US20100062255 Gypsum product and process for its preparation |
| 03/10/2010 | CN101665335A Activating agent for mine conglutinating powder |
| 02/25/2010 | US20100043674 Gypsum Building Boards |
| 02/17/2010 | EP1948354B1 Aeration system and method |
| 02/17/2010 | CN101648783A Method for preparing gypsum-based self-leveling material by using desulfurization gypsum |
| 02/11/2010 | WO2009142791A3 Process of manufacturing cement based armor panels |
| 02/10/2010 | EP2150504A1 Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| 02/10/2010 | CN101643331A Method for preparing gypsum powder by microwave activation |
| 02/04/2010 | CA2852385A1 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process |
| 01/27/2010 | EP2146940A1 Gypsum based compositions |
| 01/27/2010 | CN100584790C Acoustic-insulation heat-preservation material using attapulgite particle |
| 01/26/2010 | US7651565 Device for drying and/or calcining gypsum |
| 01/26/2010 | US7651564 Comprising dry mixture of beta gypsum, Class C fly ash, a conventional water reducing aid such as sulfonated melamines, sulfonated naphthalenes and related formaldehyde condensates, and conventional set retarder; produces self-leveling slurry that quickly hydrates to form high strength floor underlay |
| 01/21/2010 | WO2010006997A2 Process for manufacturing a monosulphonate aluminate cement and resulting binder |
| 01/21/2010 | US20100011995 Cement manufacturing apparatus and method |
| 01/14/2010 | WO2010003827A1 Process for the industrial manufacture of compositions based on anhydrous calcium sulphate in the β-anhydrite iii' form, and corresponding compositions and binders |
| 01/12/2010 | CA2639962C Wax emulsions for gypsum products |
| 01/06/2010 | CN100577588C Method for producing building gypsum from modified phosphorus gypsum |
| 12/31/2009 | US20090324931 Foaming plaster |
| 12/29/2009 | US7637996 Slurry includes water, hydraulic component including stucco and polycarboxylate dispersant; wallboard, panels |
| 12/29/2009 | US7637995 Gypsum, inhibitor; and accelerator |
| 12/23/2009 | CN201367395Y Combined production device of building plaster powder |
| 12/23/2009 | CN201367394Y Airflow desulfurization gypsum calcining system |
| 12/17/2009 | US20090308284 System and Method for the Production of Alpha Type Gypsum Using Heat Recovery |
| 12/16/2009 | CN201362655Y Gypsum dewatering calcinator |
| 12/10/2009 | US20090306250 Construction material and method of preparation |
| 12/10/2009 | US20090301356 Method of treating a precipitate comprising iron (ii) sulfate monohydrate, a plant, granular material and its uses |
| 12/09/2009 | CN101597147A Technological method adopting ardealite and desulphurization gypsum for preparing high strength building gypsum |
| 12/09/2009 | CN101597079A Technologic method for producing plastic compression gypsum powder |
| 12/09/2009 | CN100567192C Process for preparing modified ardealite by water-free calcining |
| 11/26/2009 | WO2009142791A2 Process of manufacturing cement based armor panels |
| 11/26/2009 | CA2717512A1 Process of manufacturing cement based armor panels |
| 11/25/2009 | EP2123613A1 Method and system for calcinating phosphorus plaster |
| 11/25/2009 | EP2121535A2 Gypsum compositions with naphthalene sulfonate and modifiers |
| 11/25/2009 | CN201351144Y Phosphogypsum treatment installation |
| 11/25/2009 | CN101589001A Gypsum compositions with naphthalene sulfonate and modifiers |
| 11/25/2009 | CN100562504C Gypsum fluidizing and roasting furnace and process for producing building gypsum using said roasting furnace |
| 11/18/2009 | CN101580372A Method for producing high-strength environment-friendly whitewash gypsum by using desulfurization gypsum |
| 11/12/2009 | WO2009135688A1 Calcination method and system |
| 11/12/2009 | WO2009135687A1 Method and device for calcinating phosphorous plaster |
| 11/11/2009 | EP2116294A1 Calcination method and facility |
| 11/11/2009 | CN101575901A Process for producing thistle boards from phosphogypsum, desulfurization gypsum and natural gypsum |
| 11/11/2009 | CN101575900A Process for producing thistle boards from phosphogypsum and natural gypsum |
| 11/05/2009 | US20090275250 Use of pre-coated mat for preparing gypsum board |
| 10/29/2009 | WO2009129977A1 Process and plant for the heat treatment of fine-grained mineral solids |
| 10/29/2009 | CA2718385A1 Process and plant for the heat treatment of fine-grained mineral solids |
| 10/28/2009 | CN101565995A Process for producing thistle board by using desulphurization gypsum and natural gypsum |
| 10/21/2009 | CN101563303A Calcium sulfate hemihydrate treatment process |
| 10/14/2009 | CN101555106A Composite cementitious material and ground self-leveling mortar using same |
| 10/13/2009 | US7601214 Modified landplaster as a wallboard filler |
| 10/13/2009 | CA2399746C High early-strength cementitious composition |
| 10/07/2009 | EP2106390A1 Gypsum wallboard containing acoustical tile |
| 10/07/2009 | CN101550585A Method for producing dehydrated calcium sulfate whisker |
| 10/07/2009 | CN101549970A Energy-saving environment protection apparatus for drying and producing chemical gypsum powder by using tail gas |
| 10/07/2009 | CN101549969A Method of controlling a dihydrate gypsum for preparing alpha-hemihydrate in salt solution |
| 10/07/2009 | CN101549968A Method for preparing building dry-powder cementing materials by calcination-free comprehensive utilization of industrial by-product gypsum |
| 09/29/2009 | US7594963 Joint compound composition for building elements and method of producing a structure |
| 09/23/2009 | CN101538130A Special insulating cement |
| 09/16/2009 | CN101531477A Production method and device of plaster of paris featuring adjustable working pressure |
| 09/15/2009 | US7588634 Process for manufacturing ultra low consistency alpha- and beta- blend stucco |
| 08/26/2009 | CN101514111A Method for preparing porous gypsum insulation material |
| 08/20/2009 | US20090208392 Process for producing alpha-hemihydrate gypsum |
| 08/19/2009 | EP1837315A4 Plant for hydrothermally treating and drying plaster stone |
| 08/12/2009 | CN201288148Y Novel multifuel combustion kiln |
| 08/12/2009 | CN101506442A Reduced dust acoustic panel |