Patent ID: 8789774
Filing Date: 2014-07-29
Classification: C08F,C08J,F26B

Abstract:
1. A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution or suspension comprising a) at least one ethylenically unsaturated monomer which bears an acid group and may be at least partly neutralized, b) at least one crosslinker, c) at least one initiator, d) optionally one or more ethylenically unsaturated monomer copolymerizable with the monomer mentioned under a) and e) optionally one or more water-soluble polymer, comprising drying the resulting aqueous polymer gel on a forced-air belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is applied by means of a swivel belt to the conveyor belt of the forced-air belt drier, the swivel belt, proceeding from one end position, is accelerated through a first pivot angle β