Patent application number | Description | Published |
20100209379 | SUPERABSORBENT COMPOSITION WITH TANNINS FOR ODOR CONTROL - The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures, on the surface of which is at least one tannin fraction which has a number-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, which has a weight-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, or which is a hydrolysable gallotannin. | 08-19-2010 |
20110009272 | SUPERABSORBENT COMPOSITION WITH METAL SALICYLATE FOR ODOR CONTROL - The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures and a compound of the structure I | 01-13-2011 |
20120001122 | USE OF HOLLOW BODIES FOR PRODUCING WATER-ABSORBING POLYMER STRUCTURES - The present invention relates to water-absorbing polymer structures at least partly comprising hollow bodies with a shell of an inorganic or organic material. The invention further relates to a process for producing water-absorbing polymer structures, to the water-absorbing polymer structures obtainable by this process, to a composite, to a process for producing a composite, to the composite obtainable by this process, to chemical products, for instance foams, moldings or fibers, to the use of water-absorbing polymer structures or of a composite in chemical products, for instance foams, moldings or fibers, and to the use of hollow bodies with a shell of an inorganic or organic material. | 01-05-2012 |
20120157582 | Thermoplastic Starch Compositions - The present invention relates to improvements in prevention of discoloration of thermoplastic starch materials and their blends with other thermoplastic materials. | 06-21-2012 |
20120302445 | PROCESS FOR RECYCLING POLYMER FINES - The present invention relates to a process for producing a water-absorbing polymer structure based on acid group-containing monomers, comprising the process steps of:
| 11-29-2012 |
20140045683 | PROCESS FOR PRODUCING IMPROVED ABSORBENT POLYMERS BY MEANS OF CRYOGENIC GRINDING - A process for producing a water-absorbing polymer comprises: (i) mixing (α1) 0.1-99.99% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof, or ethylenically unsaturated monomers including a protonated or quaternized nitrogen, or mixtures thereof, (α2) 0-70% by weight of ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001-10% by weight of one or more crosslinkers, (α4) 0-30% by weight of water-soluble polymers, and (α5) 0-20% by weight of one or more assistants, where the sum of the weights (α1) to (α5) is 100%; (ii) free-radical polymerization with crosslinking to form an untreated hydrogel polymer; (iii) coarse comminution of the untreated hydrogel polymer to give pieces having a diameter from 0.1 mm to 5.0 cm; (iv) cooling and grinding the untreated hydrogel polymer; (v) drying the untreated hydrogel polymer after grinding at a temperature from 85° C. to 260° C.; (vi) postcrosslinking the hydrogel polymer and (vii) drying the water-absorbing polymer. | 02-13-2014 |
20140054497 | WATER-ABSORBING POLYMER HAVING A HIGH ABSORPTION RATE - A process for producing a water-absorbing polymer composition, comprising the process steps of (i) mixing (α1) 0.1 to 99.999% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof (α2) 0 to 70% by weight of polymerized, ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001 to 10% by weight of one or more crosslinkers, (α4) 0 to 30% by weight of water-soluble polymers, and (α5) 0 to 20% by weight of one or more assistants, where the sum of their weights (α1) to (α5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble aqueous untreated hydrogel polymer, and surface postcrosslinking the ground hydrogel polymer wherein blowing agents having a particle size of 100 μm to 900 μm are added to the aqueous monomer solution prior to the addition of the initiator and the start of the free-radical polymerization. | 02-27-2014 |
20140257223 | SUPER-ABSORBING POLYMERS WITH RAPID ABSORPTION PROPERTIES AND METHOD FOR PRODUCING THE SAME - The present invention relates to a particulate absorbent polymer material having:
| 09-11-2014 |
20140312273 | SUPERABSORBING POLYMERS WITH RAPID ABSORPTION PROPERTIES AND METHOD FOR PRODUCING THE SAME - This invention relates to a method for producing a water-absorbing polymer, including the following steps: (i) mixing (α1) 0.1 to 99.999 wt % polymerizable, ethylenically unsaturated, acid-group-containing monomers; (α2) 0 to 70 wt % polymerized ethylenically unsaturated, monomers copolymerizable with (α1); (α3) 0.00 1 to 10 wt %, cross-linking agent(s); (α4) 0 to 30 wt % water-soluble polymers; and (α5) 0 to 20 wt % additive(s), wherein the total quantity by weight of (α1) to (α5) amounts to 100 wt %, (ii) radical polymerization while cross-linking, in order to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sifting the water-absorbing polymer, (v) surface post-cross-linking the hydrogel polymer, and (vi) drying and processing the polymer, wherein, before the admixture of the initiator and the start of radical polymerization, 0.01 to 5 wt % of a surfactant, relative to acrylic acid, 0.01 to 5 wt % foaming agent, are added. | 10-23-2014 |