| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 08/12/2009 | CN101506121A Fiberboard with improved water resistance |
| 08/12/2009 | CN101506120A A method of inertising the impurities in phosphogypsum |
| 08/12/2009 | CN101503283A Composition for purification treatment of waste phosphogypsum, treating method and construction material obtained thereby |
| 08/11/2009 | US7572329 Method of making a gypsum slurry with modifiers and dispersants |
| 08/11/2009 | US7572328 Fast drying gypsum products |
| 08/06/2009 | US20090197991 Rheology modifying additive for dry cast cementitious compositions |
| 08/05/2009 | EP1487756B1 High molecular weight additives for calcined gypsum and cementitious compositions |
| 08/05/2009 | CN201284292Y Central heating system for gypsum board and construction gypsum production line |
| 08/05/2009 | CN101497504A Method for improving gypsum gel strength gray model optimized grain composition |
| 08/05/2009 | CN100522860C Method for producing cement and vitriol from desulfurized gesso of flue gas |
| 08/05/2009 | CN100522858C Foamed fireproofing composition and method |
| 07/29/2009 | CN201280515Y Steam internal heating type gypsum continual conversion device |
| 07/29/2009 | CN201280514Y Hot blast colliding beta-semi-hydrated gypsum converter |
| 07/29/2009 | CN100519461C Device for calcining gypsum in highland and method for calcining gypsum |
| 07/22/2009 | EP2079669A1 Process for preparing a stabilized soluble anhydrite iii-based hydraulic binder, hydraulic binder obtained, use of said binder and industrial installation for implementing the process |
| 07/22/2009 | CN201276491Y Gypsum powder boiling frying pan |
| 07/22/2009 | CN101486536A Sulfuric acid modified method for phosphogypsum |
| 07/16/2009 | US20090178591 Carbohydrate-gypsum composite |
| 07/15/2009 | CN100513341C Method for producing cement and vitriol from high silicon ardealite |
| 07/08/2009 | CN101479209A Process for producing calcined gypsum and gypsum board |
| 07/08/2009 | CN101475329A Modified phosphogypsum powder and product thereof |
| 07/08/2009 | CN101475328A Gypsum rotating crystal excitant and use for producing construction gypsum from marine gypsum |
| 07/08/2009 | CN100509676C Method of separating and preparing low fluorine good quality fluorogypsum |
| 07/07/2009 | US7556685 Composition of architectural papier-mâché and articles made therewith |
| 07/02/2009 | US20090169864 Hard water foaming agents and methods for gypsum board production |
| 07/01/2009 | CN100506732C Method for on-line detection and automatic process of injurant in fluorine gypsum using process |
| 06/30/2009 | CA2376187C Gypsum compositions and related methods |
| 06/25/2009 | DE102007062061A1 Production of gypsum fiber board comprises forming layer of slurry of beta-gypsum hemihydrate and paper fibers and applying vacuum to its underside while its upper surface is sealed, compressing layer as water is removed from it |
| 06/24/2009 | CN101462840A Masonry cement |
| 06/18/2009 | WO2009075598A1 Waterproof gypsum binder- gypsovit |
| 06/18/2009 | US20090151602 Non-cement fire door core |
| 06/18/2009 | US20090151187 Device For Drying And/Or Calcining Gypsum |
| 06/17/2009 | EP2069254A2 A method of inertising the impurities in phosphogypsum |
| 06/17/2009 | CN101456687A Method for producing building plaster powder for gypsum lath made by high potassium and sodium-containing phosphogypsum |
| 06/17/2009 | CN101456686A Novel industrial waste gypsum self forming energy-saving process |
| 06/10/2009 | CN101454256A Method for stabilising metastable soluble anhydrite III, method for producing a hydraulic binder based thereon, the obtained hydraulic binder, the uses thereof and an industrial plant for carrying out |
| 06/10/2009 | CN100497230C Continuous indirect heating desulfated gypsum fluid bed and its drying and calcining process |
| 06/10/2009 | CN100497229C Method for preparing coagulation material using chemical gypsum |
| 06/03/2009 | EP2064397A2 Reduced dust acoustic panel |
| 05/27/2009 | EP2061731A1 Calcium sulfate hemihydrate treatment process |
| 05/27/2009 | CN201245564Y Gypsum calciner |
| 05/27/2009 | CN101439940A Technological process for calcining gypsum |
| 05/22/2009 | WO2009064602A1 Wet-grinding gypsum with polycarboxylates |
| 05/22/2009 | CA2705309A1 Wet-grinding gypsum with polycarboxylates |
| 05/20/2009 | CN100488908C Method for modifying pre-processing titanium gypsum |
| 05/14/2009 | WO2009061675A1 Activated carbon as mercury release control agent in gypsum calcination |
| 05/14/2009 | CA2702631A1 Activated carbon as mercury release control agent in gypsum calcination |
| 05/13/2009 | CN101432240A Wax emulsions for gypsum products |
| 05/06/2009 | CN201232049Y Equipment for producing desulfurized gypsum retarders |
| 05/06/2009 | CN101423351A Novel plastering gypsum |
| 05/06/2009 | CN101423350A Anhydrite cement for building and method for producing the same |
| 04/30/2009 | WO2006138280A3 Effective use of dispersants in wallboard containing foam |
| 04/23/2009 | WO2007027341A3 Fiberboard with improved water resistance |
| 04/23/2009 | WO2006138277A3 Modifiers for gypsum slurries and method of using them |
| 04/23/2009 | DE102007013212B4 Verfahren zur Herstellung fester Gegenstände aus nassem synthetischen Gips sowie Verwendung einer Vorrichtung zur Durchführung eines derartigen Verfahrens Process for the preparation of solid objects from the wet synthetic gypsum, as well as use of an apparatus for performing such a method |
| 04/22/2009 | CN101412594A Method for preparing calcined phosphogypsum from industrial waste phosphogypsum |
| 04/16/2009 | WO2008088520A3 Gypsum compositions with naphthalene sulfonate and modifiers |
| 04/15/2009 | CN100478295C Anhydrite agglutinate antifrost method and antifrost anhydrite agglutinate thereof |
| 04/09/2009 | WO2006138001A3 Method of making a gypsum slurry with modifiers and dispersants |
| 04/02/2009 | WO2006137999A3 High strength flooring compositions |
| 04/01/2009 | CN101397194A Method for manufacturing cement retarding ball |
| 04/01/2009 | CN100473622C Novel calcination technique for gypsum |
| 03/24/2009 | US7507287 providing effective mercury release control during gypsum calcination is disclosed. The method comprises providing a reactor and gypsum containing mercury; providing a mercury sorbent, such as activated carbon and/or derivatives thereof in the reactor; and calcining the gypsum in the reactor form stucco |
| 03/18/2009 | EP2036869A1 Process for producing calcined gypsum and gypsum board |
| 03/17/2009 | US7504165 High strength flooring compositions |
| 03/11/2009 | CN101381209A Method for transforming desulfating gypsum to alpha-half hydrated gypsum in atmospheric KCl solution |
| 03/11/2009 | CN100467414C Early-intensified quick-hardened cement and its uses in construction product |
| 03/03/2009 | US7498014 Gypsum building materials wherein heat generated from the drying of gypsum-based building materials is recovered and used for calcination; separating chamber that includes a steam dome and a condenser, whereby excess steam can be collected, condensed and stored for subsequent use |
| 02/26/2009 | US20090050025 Use of Encapsulated Water Soluble Material as a Construction Material |
| 02/25/2009 | EP2026960A2 Method of water dispersing pregelatinized starch in making gypsum products |
| 02/25/2009 | CN101372404A Method for preparing high-strength alpha type hemihydrate gypsum using desulphurized dihydrate gypsum |
| 02/19/2009 | US20090047545 comprising set gypsum formed from at least calcined gypsum, water and sodium trimetaphosphate, wherein the amount of the sodium trimetaphosphate compound is from about 0.004 to about 2.0% by weight of the calcined gypsum; shrinkage inhibition, sag resistance |
| 02/18/2009 | EP2025652A2 Method for obtaining stabilised anhydrite iii |
| 02/18/2009 | CN101367658A Dampproof flame-proof plaster slab and method of manufacturing the same |
| 02/12/2009 | WO2009019601A1 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 |
| 02/12/2009 | CA2694342A1 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 |
| 02/10/2009 | US7488383 Gypsum products and method for their manufacture |
| 01/28/2009 | CN101353233A Radiation protection cement and sulphuric acid production method |
| 01/28/2009 | CN101352668A Desulfurated gypsum wet granulation method |
| 01/21/2009 | CN101348359A Cementitious compositions and a method of their use |
| 01/21/2009 | CN101348341A Manufacturing method for producing construction gypsum from boiler tail gas |
| 01/21/2009 | CN101348340A Gypsum based gel material prepared from undisturbed industry by-product gypsum and preparation thereof |
| 01/21/2009 | CN101348339A Flash-burning machine for producing construction gypsum powder from industrial residue |
| 01/21/2009 | CN101348338A Radiation protection gypsum lath and preparation thereof |
| 01/21/2009 | CN101348337A High-temperature calcination gypsum powder machine |
| 01/21/2009 | CN100453450C Coproducing cement technological method of producing acid using phosphogypsum and sulfur |
| 01/14/2009 | CN101343153A Water resistant fortifier special for gypsum |
| 01/07/2009 | EP1628917A4 Calcium sulphate-based compositions and methods of making same |
| 12/31/2008 | CN101333086A Method for preparing alpha semi-hydrated gypsum pulp and plaster products by desulphurizing gypsum |
| 12/25/2008 | US20080314295 Lightweight concrete compositions |
| 12/24/2008 | CN101330967A Aeration system and method |
| 12/24/2008 | CN100445497C Cementitious veneer and laminate material |
| 12/17/2008 | CN101323518A Method for producing baking-free brick from industry gypsum waste slag |
| 12/16/2008 | US7465350 Hydraulic composition |
| 12/10/2008 | CN101318631A Method and apparatus for decomposing phosphogypsum to produce sulphuric acid, generating electricity power and cement with quiescent state reduction |
| 12/04/2008 | WO2008030341A3 Reduced dust acoustic panel |
| 12/04/2008 | US20080299413 Acoustical gypsum board panel and method of making it |
| 12/03/2008 | CN201158619Y Gypsum calcining furnace |
| 12/03/2008 | CN201158618Y Gypsum calcining furnace |
| 12/03/2008 | CN101314530A Method for producing building material with low-temperature ceramic modified industry by-product gypsum |