Invention Grant
- Patent Title: Method for grading water-absorbent polymer particles
- Patent Title (中): 吸水性聚合物颗粒分级方法
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Application No.: US12438486Application Date: 2007-09-24
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Publication No.: US07967148B2Publication Date: 2011-06-28
- Inventor: Uwe Stueven , Rüdiger Funk , Matthias Weismantel , Karl J. Possemiers , Filip Mees
- Applicant: Uwe Stueven , Rüdiger Funk , Matthias Weismantel , Karl J. Possemiers , Filip Mees
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: EP06121230 20060925
- International Application: PCT/EP2007/060073 WO 20070924
- International Announcement: WO2008/037673 WO 20080403
- Main IPC: B07B1/00
- IPC: B07B1/00
Abstract:
A process for classifying water-absorbing polymer beads, wherein screens having different mesh sizes are used before and after the postcrosslinking to remove the oversize.
Public/Granted literature
- US20090194462A1 Method for Grading Water-Absorbent Polymer Particles Public/Granted day:2009-08-06
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