Patent application number | Description | Published |
20090192035 | Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution - A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm. | 07-30-2009 |
20090239071 | Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution - A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm. | 09-24-2009 |
20090258994 | Method for Producing Post-Cured Water-Absorbent Polymer Particles with a Higher Absorption by Polymerising Droplets of a Monomer Solution - A process for preparing postcrosslinked water-absorbing polymer beads with high absorption by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the solids content of the monomer solution is at least 35% by weight and the polymer beads have a mean diameter of at least 150 μm. | 10-15-2009 |
20090315204 | Method for Producing Polymer Particles by the Polymerization of Fluid Drops in a Gas Phase - A process for producing polymer particles by polymerizing liquid droplets in a gas phase by metering a liquid comprising at least one monomer from at least one feed by means of a multitude of bores into a reaction chamber comprising the gas phase, wherein ratio of length of the feed to greatest diameter of the feed in the region of the multitude of bores is at least 10. | 12-24-2009 |
20100016505 | Method for Producing Polymer Particles by the Polymerization of Liquid Droplets in a Gas Phase - A process for producing polymer particles by polymerizing liquid droplets in a gas phase surrounding the droplets, said droplets comprising at least one monomer and being coated with particulate solids during the polymerization. | 01-21-2010 |
20100035059 | Method for Producing Water-Absorbent Polymer Particles by the Polymerization of Droplets of a Monomer Solution - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, the resulting polymer particles having a water content of at least 5% by weight, and being aftertreated thermally in the fluidized state in the presence of steam at a temperature of at least 60° C. | 02-11-2010 |
20100062932 | Method for Producing Water-Absorbent Polymer Particles by the Polymerization of Droplets of a Monomer Solution - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, said monomer solution comprising at least one azo compound and at least one persulfate, the resulting polymer particles having a water content of at least 5% by weight, and being aftertreated thermally at a temperature of at least 100° C. for at least 5 minutes. | 03-11-2010 |
20110105707 | Method for the Production of Water-Absorbing Polymer Articles by Polymerizing Drops of a Monomer Solution - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises at least | 05-05-2011 |
20110111231 | METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore. | 05-12-2011 |
20110112252 | Method for Post-Crosslinking of the Surface of Water-Absorbing Polymer Particles - A process for thermally surface postcrosslinking water-absorbing polymer particles in a fluidized bed generated by means of a carrier gas, wherein the surface postcrosslinker is supplied to the fluidized bed in gaseous form. | 05-12-2011 |
20110204288 | Process for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is dried in a forced-air belt drier on a circulating conveyor belt and the surface of the conveyor belt has a roughness of at least 0.9 μm. | 08-25-2011 |
20110207906 | Process for Producing Water-Absorbing Particles - A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is dried in a forced-air belt drier on a circulating conveyor belt and the surface of the conveyor belt has a multitude of elevations or depressions which are suitable for restricting the mobility of the aqueous polymer gel in transverse direction. | 08-25-2011 |
20110224361 | METHOD FOR PRODUCING PERMEABLE WATER-ABSORBING POLYMER PARTICLES THROUGH POLYMERIZATION OF DROPS OF A MONOMER SOLUTION - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the polymer particles are coated with a permeability improver. | 09-15-2011 |
20110237754 | Process for Producing Water-Absorbent Polymer Particles by Polymerizing Droplets of a Monomer Solution - The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises thermal postcrosslinking in the presence of steam. | 09-29-2011 |
20120077727 | PROCESS FOR PRODUCING GRANULES COMPRISING ONE OR MORE COMPLEXING AGENT SALTS - A process for producing granules containing one or more complexing agent salts of the general formula | 03-29-2012 |
20120082864 | Process For Preparing Porous Metal-Organic Frameworks Based On Aluminum Fumarate - The present invention relates to a process for preparing a porous metal-organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion, where the at least one metal ion is based on an aluminum ion and the at least one at least bidentate organic compound is based on fumaric acid, by reacting at least one aluminum compound with at least fumaric acid in an alkaline aqueous medium, optionally in the presence of at least one base, at a temperature in the range from 20° C. to 100° C. at an absolute pressure of not more than 2 bar for from 0.2 to 4 hours. | 04-05-2012 |
20120141792 | Method for Producing Post-Cured Water-Absorbent Polymer Particles with a Higher Absorption by Polymerizing Droplets of a Monomer Solution - A process for preparing postcrosslinked water-absorbing polymer beads with high absorption by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the solids content of the monomer solution is at least 35% by weight and the polymer beads have a mean diameter of at least 150 μm. | 06-07-2012 |
20120263775 | PRODUCTION OF PESTICIDE GRANULATES IN A SPOUTED BED APPARATUS - The present invention relates to a method for producing granules comprising a pesticide, comprising the spraying-on of a pesticide-containing spray liquid in the region of a near-circular gas/material stream of a spouted-bed apparatus onto the particle surface of the material, and the drying and granulation in the gas stream. Furthermore, the invention relates to granules comprising a pesticide, obtainable by said method, where the granules have a roundness of at least 0.85. | 10-18-2012 |
20140038817 | METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore. | 02-06-2014 |
20140243251 | PROCESS FOR PRODUCING GRANULES COMPRISING ONE OR MORE COMPLEXING AGENT SALTS - A process for producing granules comprising one or more complexing agent salts of formula (I): | 08-28-2014 |
20140302321 | METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH A HIGHER PERMEABILITY BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION - A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm. | 10-09-2014 |