Patent application number | Description | Published |
20100047445 | Method for Coating Water-Absorbing Polymer Particles - A process for preparing water-absorbing polymer particles by spraying a liquid onto water-absorbing polymer particles by means of at least one thermally insulated and/or trace-heated spray nozzle in a mixer. | 02-25-2010 |
20100093949 | Superabsorbents Having Superior Permeability and Conveying Properties - A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34. | 04-15-2010 |
20100104761 | Method for Coating Water-Absorbing Polymer Particles - A process for preparing water-absorbing polymer particles by spraying a liquid below the product bed surface by means of at least one spray nozzle in a mixer with moving mixing tools. | 04-29-2010 |
20100112200 | Method for Coating Water-Absorbing Polymer Particles - A process for preparing water-absorbing polymer particles by coating water-absorbing polymer particles with a particulate solid in a mixer, wherein the particulate solid is dispersed by means of a gas stream and the supply of the dispersed particulate solid in the mixer ends below the product bed surface. | 05-06-2010 |
20100323885 | Process for Producing Re-Moisturised Surface-Crosslinked Superabsorbents - Re-moisturised, surface-crosslinked superabsorbents are produced using a process that comprises the steps of contacting a superabsorbent base polymer with an organic crosslinker and a polyvalent metal salt solution in the presence of an alcohol, heat-treating to produce a surface-crosslinked, dry superabsorbent and re-moisturising the surface-crosslinked dry superabsorbent. | 12-23-2010 |
Patent application number | Description | Published |
20080281049 | Process for Preparing Water-Absorbing Polymers with High Absorption Capacity and High Permeability - A process for preparing water-absorbing polymers by polymerizing a monomer solution comprising
| 11-13-2008 |
20090008051 | WET STRENGTH ENHANCERS FOR PAPER - They are mixtures of
| 01-08-2009 |
20090204087 | Superabsorbent Polymers Having Superior Gel Integrity, Absorption Capacity, and Permeability - Superabsorbent polymer particles having superior gel integrity, absorption capacity, and permeability are disclosed. A method of producing the superabsorbent polymer particles by applying a polyamine coating to the particles also is disclosed. | 08-13-2009 |
20100010461 | Polyamine Coated Superabsorbent Polymers Having Transient Hydrophobicity - Superabsorbent polymer particles having a transient hydrophobicity, excellent gel integrity, and free swell gel bed permeability are disclosed. A method of producing the superabsorbent polymer particles by applying a polyamine coating and a cosolvent to the particles also is disclosed. | 01-14-2010 |
20120302714 | Process for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a kneader having at least two shafts in axially parallel rotation, wherein the reaction mixture is transported in axial direction and the region at the start of the kneader is trace-heated. | 11-29-2012 |
20150065594 | PROCESS FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES - A process for preparing water-absorbing polymer particles, comprising polymerisation of a foamed aqueous monomer solution or suspension, drying, grinding and classification, whereas the process further comprising adjusting the amount of foaming agent in the aqueous monomer solution by admixing the aqueous monomer solution with a foaming agent of 1% to 15% by weight based on the amount of ethylenically unsaturated monomer and keeping the solution on a pressure of 6 bar to 15 bar and then expanding the solution. | 03-05-2015 |