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1. (WO2013117496) METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES

Pub. No.:    WO/2013/117496    International Application No.:    PCT/EP2013/052003
Publication Date: Fri Aug 16 01:59:59 CEST 2013 International Filing Date: Sat Feb 02 00:59:59 CET 2013
IPC: C08F 220/06
Applicants: BASF SE
Inventors: FLORE, Karin
DANIEL, Thomas
VOITL, Agnes
IFFLAND, Gabriele
Title: METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
Abstract:
The invention relates to a method for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution or monomer suspension, comprising at least one ethylenically unsaturated, acid-group-bearing monomer, which monomer is at least partially neutralized by adding a neutralizing agent, wherein the neutralizing agent is filtered before being added.