Process for Producing Water-Absorbing Polymer Particles in a Polymerization Reactor with At Least Two Axially Parallel Rotating Shafts

摘要

A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a polymerization reactor with at least two axially parallel rotating shafts, wherein the polymerization is performed in the presence of an inert gas and under positive pressure.