Invention Grant
- Patent Title: Method for the production of water absorbent polymer particles by polymerizing drops of a monomer solution
- Patent Title (中): 通过聚合单体溶液滴制备吸水性聚合物颗粒的方法
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Application No.: US12443554Application Date: 2007-10-02
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Publication No.: US08013087B2Publication Date: 2011-09-06
- Inventor: Dennis Lösch , Marco Krüger , Achim Stammer
- Applicant: Dennis Lösch , Marco Krüger , Achim Stammer
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: EP06121840 20061005
- International Application: PCT/EP2007/060418 WO 20071002
- International Announcement: WO2008/040715 WO 20080410
- Main IPC: C08F20/06
- IPC: C08F20/06 ; C08F2/00 ; B01J20/22 ; B01J20/26
Abstract:
A process for preparing water-absorbing polymer beads by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, the initiator being added to the monomer solution from 0.5 to 60 seconds before the droplets are generated.
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