| abstract |
The present invention relates to hydrophilic, swellable polymers which consists of radicals of the general formula I <IMAGE> (I) wherein R1 to R3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions. |