Patent application number | Description | Published |
20100108944 | Absorbent Article Comprising Water-Absorbing Material - The present disclosure relates to an absorbent structure for use in a diaper for babies and infants, a feminine hygiene article and/or an incontinence article, said absorbent structure comprising a water-absorbing material, the water-absorbing material being obtainable by a process comprising the steps of A) treating a particulate, non-surface-crosslinked, water-absorbing polymer with a mixture comprising an aqueous solvent and at least one salt of a transition metal and B) irradiating the polymer treated according to A) with UV radiation, and to a process for its production. | 05-06-2010 |
20100184594 | Water-Absorbing Polymeric Particles and Method for the Production Thereof - The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with
| 07-22-2010 |
20110178251 | Water Absorbing Material - The present invention relates to a water-absorbing material obtainable by a process comprising the steps of A) treating a particulate, non-surface-crosslinked, water-absorbing polymer with a mixture comprising an aqueous solvent and at least one salt of a transition metal and B) irradiating the polymer treated according to A) with UV radiation, to a process for its production and to articles comprising the water-absorbing material. | 07-21-2011 |
20110224379 | Mixture of Surface Postcrosslinked Superabsorbers with Different Surface Postcrosslinking - A mixture of superabsorbents having differing surface postcrosslinking, more particularly a mixture of differingly surface-postcrosslinked sieve cuts of a base polymer, exhibits improved absorption and retention over a unitarily surface-postcrosslinked superabsorbent. | 09-15-2011 |
Patent application number | Description | Published |
20080221260 | Hydrogels with a Low Freezing Point - The invention relates to hydrogels having a low freezing point, comprising at least one water-absorbing polymer, at least one nonaqueous solvent and water, to a process for their production and to the use of hydrogels in cooling elements. | 09-11-2008 |
20090029044 | Absorbent Article Comprising Water-Absorbing Polymeric Particles And Method For The Production Thereof - The invention refers to absorbent structures for use in an absorbent article, the absorbent structure comprising a water absorbing material. The water absorbing material is obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with at least one postcrosslinker, at least one Nitrogen-containing water-soluble polymer, and at least one hydrophobic polymer. The particles are heat-treated at a temperature in the range from 120° C. to 300° C. | 01-29-2009 |
20100190932 | Water-Absorbing Polymeric Particles and Method for the Production Thereof - The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with a) at least one post-crosslinker, b) 0.1-1.0 wt. % of at least one water-insoluble metal phosphate, based on the non surface-crosslinked water-absorbing polymer, and at least one further ingredient selected from c) at least one Nitrogen-containing water-soluble polymer of which the Nitrogen can be protonated, and d) at least one hydrophobic polymer and heat-treating the particles thus obtained at a temperature in the range from 120° C. to 300° C. and a method for the production thereof. | 07-29-2010 |
20110257341 | Postcrosslinking of Water-Absorbing Polymers - The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained. | 10-20-2011 |
20120101459 | Absorbent Structures Comprising Post-Crosslinked Water-Absorbent Articles - Absorbent structures comprising vacuum-treated (optionally coated) post-crosslinked water-absorbing polymeric particles, obtainable by vacuum-treating and optionally plasma-treating post-crosslinked water-absorbent polymeric particles (that may optionally be coated), the resulting vacuum-treated post-crosslinked water-absorbing polymeric particles having an improved absorption, whilst having good gel bed permeability. | 04-26-2012 |