A PROCESS FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION
摘要
The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises thermal postcrosslinking in the presence of steam.
申请公布号
EP2550306(B1)
申请公布日期
2014.07.02
申请号
EP20110709720
申请日期
2011.03.23
申请人
BASF SE
发明人
DANIEL, THOMAS;KRÜGER, MARCO;FLORE, KARIN;BLEI, STEFAN;STUEVEN, UWE;HERFERT, NORBERT;MITCHELL, MICHAEL A.