发明授权
- 专利标题: Method for producing water-absorbent polymer particles with a higher permeability by polymerizing 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聚合物颗粒的方法
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申请号: US12306800申请日: 2007-07-12
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公开(公告)号: US08748000B2公开(公告)日: 2014-06-10
- 发明人: Uwe Stueven , Matthias Weismantel , Wilfried Heide , Marco Krüger , Volker Seidl , Stefan Blei , Dennis Loesch , Rüdiger Funk , Annemarie Hillebrecht
- 申请人: Uwe Stueven , Matthias Weismantel , Wilfried Heide , Marco Krüger , Volker Seidl , Stefan Blei , Dennis Loesch , Rüdiger Funk , Annemarie Hillebrecht
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Marshall, Gerstein & Borun LLP
- 优先权: EP06117487 20060719
- 国际申请: PCT/EP2007/057141 WO 20070712
- 国际公布: WO2008/009612 WO 20080124
- 主分类号: B32B5/16
- IPC分类号: B32B5/16 ; B32B9/00 ; B32B15/02
摘要:
A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm.
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