Patents for C04B 24 - Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers (15,791)
01/1992
01/04/1992CA2046066A1 Aqueous polymer dispersions and polymer powders prepared therefrom by spray drying
01/01/1992CN1057449A Dense water glass acid-proof concrete and its preparation method
01/01/1992CN1057448A Refractory covering materials
12/1991
12/31/1991US5076852 Drilling fluid, sulfonated styrene copolymers asdispersants; p romoters of acetic acid, esters thereof
12/27/1991EP0462602A1 Method of manufacture of concrete products from raw concrete
12/25/1991CN1015168B Aminoarylslfonic acid-phenol-formaldehyde condensate and concrete admixture comprising same
12/20/1991CA2044982A1 Method of manufacture of concrete products from raw concrete
12/18/1991EP0461738A1 Strength enhancing additive and water repellant mortars containing same
12/17/1991CA1293272C Cement additive containing superplasticizer and bentonite
12/17/1991CA1293111C Method for producing hardened cement mineral material, especially concrete, and an apparatus for implementation of the method
12/13/1991CA2044362A1 Strength enhancing additive and water repellant mortars containing same
12/11/1991EP0460744A1 Cement based mortar compositions having elastomeric properties, and method of manufacture
12/10/1991CA1293087C Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete admixture comprising the same
12/04/1991EP0458852A1 Thinned cement slurry for use in the cementation of wells for producing hydrocarbons
12/03/1991US5069721 Mortar concrete composition
11/1991
11/27/1991EP0458328A1 Thickening system for watercontaining building material mixtures
11/26/1991CA2043252A1 Thickening system for water-based building material mixes
11/21/1991EP0457642A1 Process for preparing polychloroprene
11/21/1991EP0324501B1 Method for stabilizing concrete residues
11/19/1991WO1991017968A1 A silica fume hydrating and plasticizing admixture for concrete
11/19/1991US5066745 Water-swellable crosslinked hydrogels, gel strength, absorption
11/19/1991CA2063985A1 Silica fume hydrating and plasticizing admixture for concrete
11/19/1991CA1292342C Organomineral foamed materials and process for their preparation
11/19/1991CA1292243C Process for the oxidation aldoses, catalyst used in said process and products thus obtained
11/14/1991WO1991017127A1 Admixture of cement-based grout, mortar or concrete
11/14/1991WO1991017126A1 Admixture for concrete products
11/05/1991US5062897 Carbon fiber-reinforced hydraulic composite material
10/1991
10/31/1991WO1991016522A1 Dispersant compositions for subterranean well drilling and completion
10/31/1991WO1991016464A1 Treatment of particulate materials with reticulated cellulose
10/31/1991WO1991016365A1 Dispersant compositions for subterranean well drilling and completion
10/31/1991CA2081465A1 Dispersant compositions for subterranean well drilling and completion
10/30/1991EP0454087A1 Molded calcium silicate articles and method for producing same
10/30/1991EP0453921A1 Non-emulsion masonry cement additives and method of producing masonry cement compositions containing same
10/27/1991CA2040479A1 Non-emulsion masonry cement additives and method of producing masonry cement compositions containing same
10/26/1991WO1991016275A1 Refractory coating material
10/23/1991CN1055532A Prepn. of magnesite concrete products
10/22/1991US5059371 Method and apparatus for extrusion molding fiber-and cement-containing W/O type emulsion
10/19/1991CA2040676A1 Compound binder, process for obtaining it and its application in highway surfacings
10/15/1991CA1290561C Inhibiting corrosion in reinforced concrete
10/02/1991EP0449482A2 Cement additive
10/02/1991EP0448717A1 Cement admixture, production thereof, and cement composition
09/1991
09/25/1991EP0447499A1 Method for preparing a resin concrete
09/25/1991EP0258384B1 Lightweight joint compound having improved paintability
09/19/1991WO1991013961A1 Foaming tenside preparations
09/19/1991DE4007755A1 Schaeumende tensidzubereitungen Foaming surfactant
09/19/1991DE4007459A1 Naphthalene-sulphonic-formaldehyde condensates with low free aldehyde - obtd. by immediately adjusting the condensation prod. up to specific pH at 80 deg. C., etc.
09/17/1991US5049311 Surfactants
09/17/1991US5049288 Set retarded cement compositions and methods for well cementing
09/10/1991US5047463 Instead of starch and containing water,and fillers; molding alkaline paste, drying
09/10/1991US5047087 Unsaturated Acid-Unsaturated Acid Ester Interpolymer, Plasticizing
09/10/1991US5047085 In the bubbled frother solution
09/10/1991US5046562 Fluid loss control additives for oil well cementing compositions
09/04/1991EP0444542A1 Cementing compositions containing polyethyleneimine phosphonate derivatives as dispersants
09/04/1991EP0444509A2 Fluorurethan groups containing polymers of ethylenically unsaturated monomers, process for their preparation and their use
09/04/1991EP0444489A1 Cementing compositions containing a copolymer as a fluid loss control additive
09/04/1991EP0422163A4 Method for manufacturing a mineral wool panel
09/03/1991US5045616 Disperson polymers which contain urea groups and are based on ethylenically unsaturated monomers, process for their preparation and their use
09/03/1991CA1288443C High strength cured cement article and process for manufacturing the same
08/1991
08/28/1991EP0443341A2 Process for preparing naphthalensulfonic acid formaldehyde condensates with low formaldehyde content
08/28/1991CA2036805A1 Fluorourethane group-containing polymers made from ethylenically unsaturated monomers, process for their preparation and their use
08/20/1991WO1991012214A1 Flowability improving agent, a process for the production thereof and a use thereof
08/20/1991US5041630 Sulfoalkylation of naphthol with a carbonyl and a sulfur compound; reduces viscosity, retards gelation
08/20/1991US5041475 Method for production of inclusion water for hardening gypsum, method for production of shaped article of gypsum, and shaped article of gypsum
08/20/1991CA2035341A1 Process for the preparation of naphthalene-sulfonic acid/formaldehyde condensates having a low free formaldehydecontent
08/14/1991CN1013497B 3-alkoxy-2-hydroxypropyl derives of celluiose and use thereof in building compositions
08/13/1991US5039341 Adhesive
08/13/1991US5038863 Cementing oil and gas wells
08/13/1991CA1287628C Water-soluble ethers substituted with alkenyl or alkyl succinic acidesters
08/01/1991DE4038147A1 Spraying of concrete mixts.
07/1991
07/31/1991EP0236497B1 Coating compositions and method for improving the properties of coated substrates
07/17/1991EP0436674A1 Aluminium hydroxide and fibrous-based insulating material, in particular for injection onto a floor surface
07/16/1991CA1286434C Vinyl monomer compositions with accelerated surface cure
07/09/1991US5030366 Spacer fluids
07/02/1991US5028271 Vinyl grafted lignite fluid loss additives
07/02/1991US5028261 Used in construction materials
06/1991
06/26/1991CN1052471A Polymer-modified cements with improved chemical resistance
06/26/1991CN1052470A Preparing water-and moisture-proof powder for building from filtrate residue of sugar refinery
06/19/1991EP0432920A2 Polymer-modified cements with improved chemical resistance
06/19/1991EP0432770A1 Hydraulic composition, formed products therefrom and segregation reduction agent for hydraulic substances
06/18/1991US5025040 Of water, hydraulic cement and a blend of acrylamide-vinylimidzole copolymer and acrylamide-vinylimidazole-acrylamidomethyl propane sulfonic acid sodium salt terpolymer
06/18/1991US5024703 Reducing cereal storage proteins with ferrous sulfate, tin and copper chloride; air entrainment
06/15/1991CA2031404A1 Polymer-modified cements with improved chemical resistance
06/12/1991EP0431600A1 Cement admixture and cement composition
06/12/1991EP0431503A2 Hydraulic compositions and high-strength composite materials
06/05/1991EP0430644A1 Spacer fluids
06/05/1991EP0430576A1 Cellular or foamed hydraulic compositions
06/05/1991EP0430575A1 Cellular or foamed hydraulic compositions
06/04/1991US5021094 Swellable clays, thinner with salt of polycarboxylic acid, water; for sealing bore holes or subterranean cavities.
06/04/1991US5020598 Process for cementing a well
05/1991
05/30/1991WO1991007362A1 Water-repellent mortar
05/29/1991CN1051716A Process for preparing early strengthening agent for solidification of sulfur dregs cement
05/28/1991CA1284496C Process for the oxidation of di-, tri-, oligo- and polysaccharides into polyhydroxycarboxylic acids, catalyst used and products thus obtained
05/28/1991CA1284452C Coating compositions and method for improving the properties of coated substrates
05/23/1991DE3938078A1 Verwendung eines gemisches von metallseifen, quarzsand und anionischen tensiden als luftporenbildner fuer salzhaltige moertel Using a mixture of metal soaps, quartz sand and anionic surfactants as entraining agents for salty dry building mixtures
05/23/1991CA2029635A1 Foamed hydraulic composition containing copolymeric foam stabilizer
05/23/1991CA2029632A1 Foamed cementitious compositions comprising low water and poly (carboxylic) acid stabilizer
05/22/1991EP0275288B1 A method and a composition for preparing a shaped article
05/21/1991US5017234 Processing additives for blended cements
05/15/1991CA2002994A1 Reinforced cement composites with cellulosic fibers-ii
05/08/1991EP0425586A1 Mixture for producing a noise-damping compound for railway installations.