Invention Grant
- Patent Title: Method for producing water-absorbing polymer particles by suspension polymerization
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Application No.: US15532153Application Date: 2015-11-24
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Publication No.: US11203005B2Publication Date: 2021-12-21
- Inventor: Tina Mark , Thomas Daniel , Erich Lutz , Stefan Molter , Anna Kowalski
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: EP14196175 20141204
- International Application: PCT/EP2015/077431 WO 20151124
- International Announcement: WO2016/087262 WO 20160609
- Main IPC: C08F2/18
- IPC: C08F2/18 ; B01J20/26 ; A61L15/60 ; C08J3/24 ; A61F13/53 ; A61L15/24 ; B01J20/30 ; C08F20/06
Abstract:
A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.
Public/Granted literature
- US20170266640A1 METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION Public/Granted day:2017-09-21
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