| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 106808000 | Organic nitrogen | 15 |
| 20080216716 | Fresh Concrete and Admixture for Fresh Concrete - The invention relates to a composition of fresh concrete and admixtures for fresh concrete and can be used in the construction industry for producing monolithic and precast concrete and ferroconcrete structures, in spraying mixtures and in the oil extraction industry for producing squeeze cement and insulation cement products. The admixture for fresh cement comprises super plasticizer C-3 and hydrophobing agent Lignopan B having a molecular weight ranging from 10 to 50 kJ, an antifoaming agent as the hydrophobing agent (139-282) and fixing salt and/or ammonium rhodanide or sodium and sodium carbonate having the following ratio of components (mass proportion): 0 to 40 of the super plasticizer C-3, 0.02 to 0.06 of the indicated hydrophobing agent, 10 to 20 of the indicated Lignopan B, 40 to 55 of the fixing salt and/or the ammonium rhodanide or sodium, 1 to 2 of sodium carbonate. The inventive compositions accelerate the setting and hardening of the fresh concrete and increase the strength of the concrete. | 09-11-2008 |
| 20110290158 | DEFOAMERS FOR HYDRATABLE CEMENTITIOUS COMPOSITIONS - The present invention discloses additive compositions, cementitious compositions, and methods for controlling air in cementitious compositions, wherein a polyalkoxylated polyalkylene polyamine defoamer is deployed in combination with one or more air-entraining agents, such as higher alkanolamines, water-reducing agents including oxyalkylene-containing superplasticizers, or other air entraining agents. | 12-01-2011 |
| 20120000397 | CEMENT SLURRY COMPOSITION - The present invention provides a cement slurry composition, containing a hydraulic cement material, (A) a first water-soluble low molecular weight compound and (B) a second water-soluble low molecular weight compound differing from the compound (A), wherein a combination of the compounds (A) and (B) is (I) the compound (A) selected from cationic surfactants and the compound (B) selected from anionic aromatic compounds; or (II) the compound (A) selected from cationic surfactants and the compound (B) selected from brominated compounds, and in the compound (A), a ratio of compounds having a hydrocarbon group of 18 or more carbon atoms is not less than 45% by weight. | 01-05-2012 |
| 20120174831 | ADDITIVE FOR MINERAL BINDING AGENTS - An additive composition comprising at least one lignosulfonate is used for reducing the amount of soot floating on mineral binding agents. Methods for reducing the amount of soot floating on mineral binding agents where an additive composition comprising at least one lignosulfonate is added to a mineral binding agent. | 07-12-2012 |
| 20120216724 | Sulphonic Acid And Aromatic Groups Containing Hardening Accelerator Compositions - The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of an aqueous solution of a water-soluble polymer, which contains sulphonic acid and/or sulphonate groups and aromatic groups. The invention concerns also the reaction product of said processes and its use as hardening accelerator for building materials. | 08-30-2012 |
| 20120247372 | CONCRETE COLORING COMPOSITIONS AND METHODS - The present invention provides acidic compositions and methods that are adapted to impart color to cementitious or mineral substrate surfaces. Specifically, the present invention relates to acidic compositions and methods adapted to treat cementitious or mineral substrate surfaces that have the advantage of using a less corrosive acid-based solution. The acidic composition incorporates species including a weak base in equilibrium with a conjugate acid. The presence of such species moderates the corrosive behavior of the acid while still allowing excellent coloring action to occur. | 10-04-2012 |
| 20120291676 | DEFOAMERS FOR HYDRATABLE CEMENTITIOUS COMPOSITIONS - The present invention discloses additive compositions, cementitious compositions, and methods for controlling air in cementitious compositions, wherein a polyalkoxylated polyalkylene polyamine defoamer is deployed in combination with one or more air-entraining agents, such as higher alkanolamines, water-reducing agents including oxyalkylene-containing superplasticizers, or other air entraining agents. | 11-22-2012 |
| 20130180436 | Biomass-Derived Grinding Aids - Compositions and methods for increasing grinding efficiency of cement, cement clinker, raw materials for cement, and other inorganic particles. Use of biomass-derived polyols such as diols, triols, or mixtures thereof, optionally with a conventional grinding aid, cement quality improver, and/or hexavalent chromium reducer, are believed to provide less risk of sludging when compared to glycerides obtained from fossil fuel sources. | 07-18-2013 |
| 20130291764 | WATER-SOLUBLE ANTIFOAM ADDITIVE FOR A CEMENT COMPOSITION, AQUEOUS SOLUTION CONTAINING SAME AND USE THEREOF IN MORTARS OR CONCRETES - An anti-foam additive for a cement composition, including a fatty alcohol ester that is soluble in an aqueous medium at acidic pH, and hydrolysable in a basic medium, i.e. when the ester is incorporated into the cement composition, while releasing an active anti-foam molecule. This ester is preferably a fatty alcohol ester of a quaternary ammonium carboxylate, that is soluble in an aqueous solution of a superplasticizer, such as a polycarboxylate with poly(ethylene oxide) side chains. The additive can used for reducing the amount of air entrained during mixing or blending of mortars or concretes. | 11-07-2013 |
| 20140076205 | HARDENING ACCELERATOR FOR MINERAL BINDER COMPOSITIONS - A hardening accelerator for mineral binder compositions, in particular for cementitious binder compositions, is provided. The hardening accelerator contains a combination of a) a first amino alcohol (A) including at least one primary alcohol group, and b) a second amino alcohol (E) including at least one secondary alcohol group. | 03-20-2014 |
| 20140366780 | SETTING RETARDER FOR HYDRATE-FORMING BINDERS - A setting retarder for hydrate-forming binders is produced by reacting a first reactant A, including an amino acid and/or an amino acid derivative, with a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, in a reaction mixture to form a reaction product, the reaction mixture further containing at least one base, and alternatingly adding partial quantities of the at least one base and partial quantities of the second reactant C to the reaction mixture so that the reaction is carried out at a pH value in a range of from 7.5-11.5, wherein the setting retarder is in liquid or solid form. | 12-18-2014 |
| 20150007755 | Biomass-Derived Grinding Aids - Compositions and methods for increasing grinding efficiency of cement, cement clinker, raw materials for cement, and other inorganic particles. Use of biomass-derived polyols such as diols, triols, or mixtures thereof, optionally with a conventional grinding aid, cement quality improver, and/or hexavalent chromium reducer, are believed to provide less risk of sludging when compared to glycerides obtained from fossil fuel sources. | 01-08-2015 |
| 20150096470 | METHODS AND COMPOSITIONS USING CALCIUM CARBONATE AND STABILIZER - Provided herein are compositions, methods, and systems for a material containing metastable carbonate and stabilizer. Methods for making the compositions and using the compositions are also provided. | 04-09-2015 |
| 20150122155 | CEMENTITIOUS COMPOSITION FOR FORMING MORTARS OR CONCRETES HAVING REDUCED TENDENCY TO REACT WITH ALKALI - The invention has as object a cementitious composition for forming mortars or concretes having reduced tendency to react with alkali, characterized in that it comprises as additive at least a compound of general formula: | 05-07-2015 |
| 20160176758 | ADJUVANT COMBINATION OF A MILLING ASSISTANT AND A CONCRETE ADMIXTURE FOR ACCELERATED HYDRATION OF CEMENTITIOUS BINDERS | 06-23-2016 |
