Patent application number | Description | Published |
20090162638 | Composites of inorganic and/or organic microparticles and nano-calcium carbonate particles - The present invention relates to composites, comprising inorganic and/or organic pigments and/or fillers in the form of microparticles, the surface of which is coated at least partially with finely divided nano-calcium carbonate with the help of binders based on copolymers comprising as monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines, a method for producing such composites, aqueous slurries thereof and their use in papermaking or in the field of paint and plastic production and the use of the inventive binders for coating the microparticles with nano-calcium carbonate. | 06-25-2009 |
20090169894 | Composite of Inorganic and/or Organic Microparticles and Nano-Dolomite Particles - The present invention relates to composites, comprising inorganic and/or organic pigments and/or fillers in the form of microparticles, the surface of which is coated at least partially with finely divided nano-dolomiie with the help of binders based on copolymers comprising as monomers one or more diearboxyjic acids and one or more monomers from the group of diamines, triammcs, dialkanolamines or maikanohitnmes, a method for producing such composites, aqueous slurries thereof, their use, and the use of the inventive binders for coating the microparticles with nano-dolomite. | 07-02-2009 |
20090312459 | Method for Dry Grinding a Material Containing a Carbonate Ore - A first objective of the present invention is a method for dry milling material which contains carbonate ore, characterized in that the said method comprises the following steps: a) dry milling of the said material in at least one milling unit: (i) in the presence of at least one polyalkylene glycol polymer where at least 90% but preferably 95% at least, and very preferably 98% at least of the monomer units forming the backbone of the said polymer are constituted by ethylene oxide, propylene oxide or their mixtures, and where the molecular weight is at least equal to 400 g/mole, (ii) such that the quantity of water in the said milling until is less than 10% in dry weight of the said material in the said milling unit; b) the milled material may then be classified according to step a) with at least one classification unit; c) the steps a) and/or b) may be repeated with all or part of the milled material from step a) and/or step b). Another aim of the present invention is a product coming from step a) and/or b) and/or c) of the method of the invention. A third object of the present invention is the use of the said product from step a) and/or b) and/or c) for making sealant, paper, paint, plastic or else for formula used in agriculture. | 12-17-2009 |
20100297426 | COMPOSITES OF INORGANIC MICROPARTICLES HAVING A PHOSPHATED SURFACE AND ALKALINE EARTH CARBONATE NANOPARTICLES - The present invention relates to composites comprising inorganic micro pigments and/or fillers in the form of surface-phosphated microparticles, whose surface is at least partially coated with finely divided with alkaline earth carbonate nanoparticles by means of binders based on copolymers comprising as the monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method for producing such composites, aqueous slurries thereof and the use thereof in papermaking or in the field of production of paints and plastics as well as the use of the binders for the coating of microparticles with nano alkaline earth carbonate. | 11-25-2010 |
20100331457 | SURFACE-MINERALIZED ORGANIC FIBERS - The present invention relates to surface-mineralized organic fibers comprising organic fibers having a length in the millimeter range, the surface of which is at least partially coated with finely divided alkaline earth carbonate nanoparticles by means of binders based on copolymers comprising as monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method for producing such surface-mineralized organic fibers, aqueous slurries thereof, their use in papermaking, in surface finishing of paper, plastic, cement and clay surfaces, in paints and varnishes and the use of the inventive binders for coating the organic fibers with nano alkaline earth carbonates. | 12-30-2010 |
20120318895 | PROCESS FOR DRY GRINDING OF ONE OR MORE MINERAL MATERIALS INCLUDING AT LEAST ONE CALCIUM CARBONATE - The present invention provides a process for dry grinding one or more mineral materials which include at least calcium carbonate. The process includes a) crushing the mineral material or materials in at least one crushing unit until a crushed material is obtained with a d95 of less than 10 cm, and dry grinding the material in at least one grinding unit (i) in the presence of at least one comb-type hydrophilic polymer containing at least polyalkylene oxide function grafted on to at least one unsaturated ethylene monomer, and (ii) in such a manner that the quantity of liquid in the grinding unit is less than 15% by dry weight of the material crushed in the crushing unit, wherein recovered material has a d50 of 0.5 to 500 microns. | 12-20-2012 |
20130164411 | MICRONIZED CaCO3 SLURRY INJECTION SYSTEM FOR THE REMINERALIZATION OF DESALINATED AND FRESH WATER - The present invention concerns a process for treating water and the use of calcium carbonate in such a process. In particular, the present invention is directed to a process for remineralization of water comprising the steps of providing feed water, and injecting gaseous carbon dioxide and a slurry into the feed water, wherein the slurry comprises micronized calcium carbonate. | 06-27-2013 |
20140147370 | METHOD FOR IMPROVING HANDLEABILITY OF CALCIUM CARBONATE CONTAINING MATERIALS - The present invention concerns a calcium carbonate containing material having increased bulk density at equal or improved flowability, and a method of producing such a material. The inventive process comprises the step of contacting a calcium carbonate containing mineral powder with a solution or emulsion or dispersion of a binder. | 05-29-2014 |
20140341792 | INSTALLATION FOR THE PURIFICATION OF MINERALS, PIGMENTS AND/OR FILLERS AND/OR THE PREPARATION OF PRECIPITATED EARTH ALKALI CARBONATE - The present invention relates to an installation for the purification of minerals, pigments and/or fillers and/or the preparation of precipitated earth alkali carbonate and/or mineralization of water and to the use of such an installation for the purification of minerals, pigments and/or fillers and/or mineralization of water and/or the preparation of precipitated earth alkali carbonate. | 11-20-2014 |
20140360940 | PROCESS FOR THE PREPARATION OF AN AQUEOUS SOLUTION COMPRISING AT LEAST ONE EARTH ALKALI HYDROGEN CARBONATE AND ITS USE - The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses. The process is carried out in a reactor system that comprises a tank ( | 12-11-2014 |