| abstract |
The present invention relates to hydrophilic, swellable graft polymers which, in statistical distribution, contain 0.5 to 50% by weight of residues of the general formula and residues of the general formula II 49 to 99% by weight of an acidic group containing radicals of the general formula III and 0.1 to 2% by weight of residues of a crosslinking agent which have resulted from monomers having at least two olefinically unsaturated double bonds, the residues R 1 to R 4 , X and Y and n and m as indicated in claim 1 , are defined, their production and use as absorbents for water and aqueous solutions. |