| abstract |
A water-insoluble, water-swellable, steric or electrostatic spacer-coated hydrogel is described which, prior to coating, has the following characteristics: Absorbency under pressure (AUL) of at least 20 g / g (0.7 psi), having a gel strength of at least 1600 Pa, wherein the coated hydrogel advantageously has the following characteristics: a centrifugal retention capacity (CRC) of at least 24 g / g, at least 30 × 10 -7 cm 3 s / g saline flow conduction Kute Ibi Tei (SFC) and at the free swell rate of 0.15 g / gs (FSR) and / or up to 160 seconds vortexed time of. |