Dennis Lösch,Matthias Weismantel,Marco Krüger,Antje Ziemer
申请号：
US13957073
公开号：
US10450395B2
申请日:
2013.08.01
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A process for preparing water-absorbing polymer beads by polymerizing droplets comprising at least one monomer in a gas phase surrounding the droplets, the droplets being obtained by enveloping a first monomer solution with a second monomer solution and polymerizing the second monomer solution and polymerizing to give a more highly crosslinked polymer than the first monomer solution.
