Invention Grant
- Patent Title: Process for producing surface-postcrosslinked water-absorbent polymer particles
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Application No.: US14443082Application Date: 2013-11-07
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Publication No.: US10208170B2Publication Date: 2019-02-19
- Inventor: Thomas Daniel , Norbert Herfert , Stephan Bauer , Katrin Baumann , Birgit Reinhard , Jürgen Freiberg , Christophe Bauduin , Katarzyna Dobrosielska-Oura , Michael A. Mitchell
- 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: EP13181703 20130826
- International Application: PCT/EP2013/073236 WO 20131107
- International Announcement: WO2014/079694 WO 20140530
- Main IPC: C08J3/24
- IPC: C08J3/24 ; A61L15/22 ; A61L15/42 ; B01J20/26 ; B01J20/28 ; C08F220/06 ; C08J9/00 ; A61L15/60 ; C08F222/10
Abstract:
The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles by coating of water-absorbent polymer particles having a content of residual monomers in the range from 0.03 to 15% by weight with at least one surface-postcrosslinker and thermal surface-postcrosslinking at temperatures in the range from 100 to 180° C.
Public/Granted literature
- US20150299404A1 PROCESS FOR PRODUCING SURFACE- POSTCROSSLINKED WATER-ABSORBENT POLYMER PARTICLES Public/Granted day:2015-10-22
Information query
