Patent application number | Description | Published |
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 |
20120001000 | Method for the Production of Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, comprising classification by means of a tumbler screening machine, wherein the tumbler screening machine used for classification is equipped with at least one ball knock cleaning system and entrained balls are removed outside the tumbler screening machine by means of a capture device. | 01-05-2012 |
20120041152 | Method for Removing Metal Impurities - A process for removing metallic impurities from a product mass flow comprising water-absorbing polymer particles by means of bar magnets, wherein the water-absorbing polymer particles comprise a surfactant and have direct contact with the bar magnets. | 02-16-2012 |
20120184684 | Process for Remoisturizing Surface-Postcrosslinked Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and delivered pneumatically, and wherein the time between remoisturization and pneumatic delivery is less than one hour. | 07-19-2012 |
20120184690 | Method for Continuous Production of Water-Absorbent Polymer Particles - A process for continuously producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension on a continuous belt, drying, grinding, classifying and at least partly recycling the undersize obtained in the classification, wherein the recycled undersize is mixed with the monomer solution or suspension. | 07-19-2012 |
20120196987 | METHOD FOR RE-WETTING SURFACE POST-CROSS-LINKED, WATER-ABSORBENT POLYMER PARTICLES - A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and classified, and wherein the time between remoisturization and classification is at least 15 minutes. | 08-02-2012 |
20120202952 | Use of Heating Steam Condensate for Producing Water-Absorbent Polymer Particles - The present invention relates to a process for producing water-absorbing polymer particles, wherein an aqueous monomer solution is polymerized and the monomer solution is prepared using steam condensate. | 08-09-2012 |
20120309917 | Process for Continuously Producing Water-Absorbing Polymer Particles - A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant. | 12-06-2012 |
20120309920 | Process for Continuously Producing Water-Absorbing Polymer Particles - A process for continuously producing water-absorbing polymer particles, wherein the acrylic acid used to produce the polymer particles has a low purity. | 12-06-2012 |