Patents for C04B 24 - Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers (15,791)
01/2001
01/25/2001CA2379430A1 Low density well cement compositions
01/23/2001US6176921 Cement dispersants and method of producing concrete by using same
01/23/2001US6176314 Cementing well using low density well cement slurry compositions that are formed by the addition of a free-fluid inhibitor additive to a mixture comprising a hydraulic cement and water; a suitable inhibitor is hydroxy ethyl cellulose
01/23/2001CA2209758C Corrosion inhibitors for cement compositions
01/18/2001WO2001004212A1 Water re-dispersible powders containing polyphenols
01/18/2001WO2001004185A1 Oligomeric dispersant
01/18/2001WO2001004068A1 Cement composition containing polyisocyanates
01/17/2001EP1068160A1 Method for damp-proofing gypsum plaster
01/17/2001EP1068159A1 Method for damp-proofing gypsum plaster using at least an alkylhydrogenopolysiloxane and at least a hydrocolloid
01/17/2001CN1060788C Composite containing unsaturated polyester resin and its preparation
01/16/2001US6174980 Cements and water with polycarboxylic acid
01/16/2001US6173778 A storable cement slurry, including an aqueous base fluid, a hydraulically-active cementious material, a set retarder, and a iota carrageenan suspending agent for cementing a oil or gas well bore
01/11/2001WO2001002495A1 Coating composition comprising redispersible polymer, and a method of coating using them
01/10/2001EP1067115A1 Zwitterionic monomer having aminomulticarboxylic acid functionality
01/09/2001US6172147 Additive for production of highly workable mortar cement
01/09/2001US6171388 Lightweight gypsum composition
01/09/2001US6171386 Cementing compositions, a method of making therefor, and a method for cementing wells
01/03/2001EP1065224A1 Process for preparing polyvinylalcohol stabilised polymers
01/03/2001EP1065186A1 Well cementing method
01/03/2001EP1064237A1 Lightweight gypsum composition
01/03/2001EP1064236A2 Ready made cementitious composition
12/2000
12/28/2000WO2000079065A1 Building material
12/28/2000WO2000078688A1 Concrete admixture
12/28/2000DE19928933A1 Verfahren zur Herstellung von Polyvinylalkohol-stabilisierten Polymerisaten A method for preparing polyvinyl alcohol-stabilized polymers
12/27/2000EP1063223A1 Polyenepolycarboxylic acids, derivatives thereof with respect to carboxyl groups, or salts of these
12/26/2000US6166149 Hydrophilic graft polymer, production process therefor, composition containing the polymer, and use thereof
12/26/2000US6166119 Flowability additive
12/26/2000US6166113 Polymer containing vinyl acetate and ethylene
12/26/2000US6166112 Mixture containing acrylated polyether
12/26/2000US6165262 Thickening, inhibits segregation of materials, workability
12/21/2000WO2000077058A1 Copolymers based on unsaturated mono- or dicarboxylic acid derivatives and oxyalkylene glycol alkenyl ethers, method for the production and use thereof
12/21/2000WO2000076936A1 High early strength cement and additives and methods for making the same
12/20/2000EP1061089A1 Multipurpose, cement dispersing polymers for high flow and high strength concrete
12/20/2000EP1060325A1 Compositions for use in well construction, repair and/or abandonment
12/20/2000EP1060147A1 Retarding systems and application to oil well cementing
12/20/2000CN1059650C Graft polymers of keto-aldehyde condensation or co-condensation products
12/19/2000US6162839 Composition for producing light plaster, production of the foaming agent used therefor and its use
12/14/2000WO2000075208A1 Cement superplasticiser
12/14/2000DE19926611A1 Copolymere auf Basis von ungesättigten Mono- oder Dicarbonsäure-Derivaten und Oxyalkylenglykol-Alkenylethern, Verfahren zu deren Herstellung und ihre Verwendung Copolymers based on unsaturated mono- or dicarboxylic acid derivatives and oxyalkylene glycol alkenyl ethers, process for their preparation and their use
12/14/2000DE19926355A1 Wasserlösliche Mischpolymere und ihre Verwendung für Exploration und Förderung von Erdöl und Erdgas Water-soluble copolymers and their use for exploration and production of oil and natural gas
12/13/2000EP1059316A1 Water-soluble copolymers and their use for the exploration and recuperation of oil and gas
12/12/2000US6159281 Deterioration preventive for concrete or mortar and method for preventing deterioration of concrete or mortar
12/12/2000CA2138599C Set retarded ultra fine cement compositions and methods
12/09/2000CA2310913A1 Well cementing methods using compositions containing liquid polymeric additives
12/07/2000WO2000073237A1 Silicate-bound materials such as coating, molding, adhesive and filler material, binders and methods for their production
12/07/2000DE19925412A1 Silikatgebundene Materialien wie Beschichtungs-, Form-, Klebe- und Spachtelmaterial, Bindemittel und Verfahren zu deren Herstellung Silicate-bound materials, such as coating, molding, adhesive and filler material, binding agent and processes for their preparation
12/06/2000CN1275966A Cement additives
11/2000
11/29/2000EP1055648A1 Light-weight cellular concrete with excellent carbonatization resistance
11/29/2000CN1275141A Water-redispersible film-forming polymer powders prepared from ethylenically unsaturated monomer and containing naphthalenesulphonates
11/29/2000CN1274696A Solid concrete water reducing agent and its preparation
11/28/2000US6153006 Concrete durability enhancing admixture
11/28/2000US6153005 Foamed concrete composition and process
11/21/2000US6150437 A flow control agent comprising a graft polymers prepared by radical grafting of a polyalkylene oxide with an ethylenically unsaturated acid or the anhydride thereof, and then modified by a primary or secondary amine or alcohol
11/21/2000US6149725 Injection cement comprising corrosion inhibitors
11/21/2000CA2047485C Cementing oil and gas wells
11/16/2000WO2000068272A1 Substituted polysaccharide sulfates, method for producing them and their use as high-performance flow agents for cement mixtures
11/16/2000WO2000068163A1 Silicate material
11/16/2000WO2000068162A1 Use of polysulfate-free preparations as an additive for loam or clay-based construction materials
11/16/2000WO2000068161A1 Segregation reducing agent consisting of curdlan and alkaline solution and hydraulic composition containing the segregation reducing agent
11/16/2000DE19921815A1 Verwendung von polysulfidfreien Zubereitungen als Zusatz zu Baumaterialien auf Basis von Lehm oder Ton Use of polysulfidfreien preparations as an additive to building materials based on loam or clay
11/16/2000DE19921175A1 Substituierte Polysaccharidsulfate, Verfahren zur Herstellung und ihre Anwendung als Hochleistungsfließmittel für Zementmischungen Substituted Polysaccharidsulfate, methods of preparation and their use as high-performance superplasticizer for cement mixtures
11/16/2000CA2373132A1 Silicate composition
11/15/2000EP1052500A2 Grinding aids for the X-ray fluorescence analysis
11/15/2000EP1052232A1 Process for producing dispersant for powdery hydraulic composition
11/15/2000CN1058474C New dispersant composition for cement having excellent property in inhibition of slump-loss
11/09/2000WO2000066511A1 Novel acrylic copolymer agents based on urethane for improving the workability of hydraulic binders, preparation method, binders containing same and uses thereof
11/09/2000CA2372479A1 Novel acrylic copolymer agents based on urethane for improving the workability of hydraulic binders, preparation method, binders containing same and uses thereof
11/08/2000EP1050518A1 Silicate composition
11/02/2000EP1048676A2 Polymer compositions
10/2000
10/31/2000US6140440 Cement dispersants
10/31/2000US6139623 Emulsified comb polymer and defoaming agent composition and method of making same
10/31/2000US6139622 Emulsion contains at least one alkoxysilane
10/26/2000WO2000063294A1 Water repellent compositions, processes and applications therefor
10/26/2000WO2000063134A1 Foamed well cement slurries, additives and methods
10/26/2000CA2335257A1 Water repellent compositions, processes and applications therefor
10/25/2000EP1046621A1 Corrosion inhibiting admixture for concrete
10/25/2000CN1270936A Method for producing non-organic moulded products
10/24/2000US6136950 Highly efficient cement dispersants
10/24/2000US6136935 Method for control of fluid loss and gas migration in well cementing
10/24/2000US6136899 SBR for asphalt cement modification
10/19/2000WO2000061519A1 Concrete formulation
10/19/2000WO2000061515A1 Improved cement-based compositions
10/19/2000CA2306261A1 Corrosion inhibiting admixture for concrete
10/18/2000EP1044942A1 Process for producing an inorganic molded product
10/18/2000EP1044175A1 High pozzolan cement mixtures
10/18/2000CN1270150A Composite additive for concrete
10/17/2000US6133347 Oligomeric dispersant
10/17/2000US6133345 Process for preparing pulverulent polymers by drying aqueous polymer dispersions
10/11/2000EP1043285A1 Additive for mineral binder based on the product of internal dehydration of a hydrogenated sugar, mineral binders containing said additive and method for preparing them
10/04/2000EP1041053A1 Cement additive
10/04/2000EP0843653B1 Roll press grinding aid for granulated blast furnace slag
10/04/2000CN1057072C Hydraulic composition
10/03/2000US6127483 Redispersible, dispersion-powder composition
09/2000
09/28/2000WO2000056679A1 Polymer-cement composites and methods of making same
09/28/2000DE10009834A1 Verzögerer für Calciumsulfoaluminatzemente Retarder Calciumsulfoaluminatzemente
09/27/2000EP1038916A2 Additivation of essentially amorphous cellulose nanofibrils with carboxyl cellulose with a high degree of substitution
09/27/2000CN1268101A Admixture and method for optimizing addition of EO/PO superplasticizer to concrete containing smectite clay-containing aggregates
09/27/2000CN1267649A Cement concrete modifying method with condensate of melamine sulfonate and formaldehyde
09/26/2000US6124383 Cement and polymer adjuvant which reduces water loss from cement slurries comprising a tetrapolymer of an unsaturated amide, hydroxy acrylate, and two more specified monomers such as vinyl morpholine and a second different unsaturated amide
09/20/2000EP0973807B1 Method for producing aqueous polymer dispersions