发明申请
US20090239071A1 Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution
审中-公开
通过聚合单体溶液的液滴生产具有较高渗透性的吸水性聚合物颗粒的方法
- 专利标题： Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution
- 专利标题（中）： 通过聚合单体溶液的液滴生产具有较高渗透性的吸水性聚合物颗粒的方法
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申请号： US12306790申请日： 2007-07-11
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公开(公告)号： US20090239071A1公开(公告)日： 2009-09-24
- 发明人: Uwe Stueven , Matthias Weismantel , Heide Wilfried , Marco Kruger , Volker Seidi , Stefan Blei , Dennis Lösch , Rüdiger Funk , Annemarie Hillebrecht
- 申请人： Uwe Stueven , Matthias Weismantel , Heide Wilfried , Marco Kruger , Volker Seidi , Stefan Blei , Dennis Lösch , Rüdiger Funk , Annemarie Hillebrecht
- 优先权： EPEP061174892 20060719
- 国际申请： PCT/EP07/57082 WO 20070711
- 主分类号： B32B5/16
- IPC分类号： B32B5/16 ; B29B9/00
摘要：
A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.
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