发明授权
- 专利标题: Method for manufacturing water-absorbing polymer particles with a low centrifuge retention capacity
- 专利标题(中): 制造具有低离心保留能力的吸水性聚合物颗粒的方法
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申请号: US12920403申请日: 2009-03-16
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公开(公告)号: US08497336B2公开(公告)日: 2013-07-30
- 发明人: Matthias Weismantel , Rüdiger Funk , Ronny De Kaey , Karl J. Possemiers
- 申请人: Matthias Weismantel , Rüdiger Funk , Ronny De Kaey , Karl J. Possemiers
- 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: EP08153136 20080320
- 国际申请: PCT/EP2009/053030 WO 20090316
- 国际公布: WO2009/115472 WO 20090924
- 主分类号: C08F2/00
- IPC分类号: C08F2/00 ; C08F220/06 ; C08F20/06
摘要:
A process for producing water-absorbing polymer particles with a low centrifuge retention capacity by polymerizing in a continuous kneading reactor under an inert gas volume flow of at most 10 m3/h per m3 of reactor volume.
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