Patent ID: 8394895

Claim:
A process for continuously preparing postcrosslinked water-absorbing polymer particles, the water-absorbing polymer particles being obtained by polymerizing a monomer solution or suspension comprising a) at least one ethylenically unsaturated monomer bearing acid groups, b) at least one crosslinker, c) at least one initiator, d) optionally one or more ethylenically unsaturated monomer copolymerizable with the monomer specified under a), and e) optionally one or more water-soluble polymer, at least one postcrosslinker being applied to the water-absorbing polymer particles by means of at least one nozzle and the water-absorbing polymer particles being thermally postcrosslinked, wherein the at least one nozzle is exchanged or cleaned during the continuous process via an interior of a glovebox adjoining a plant section comprising the nozzle.