Invention Grant
US07655733B2 Postcrosslinking of water absorbing polymers with cyclic carbamates and/or cyclic ureas
有权
吸水聚合物与环状氨基甲酸酯和/或环脲的后交联
- Patent Title: Postcrosslinking of water absorbing polymers with cyclic carbamates and/or cyclic ureas
- Patent Title (中): 吸水聚合物与环状氨基甲酸酯和/或环脲的后交联
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Application No.: US11630949Application Date: 2005-07-28
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Publication No.: US07655733B2Publication Date: 2010-02-02
- Inventor: Kai Michael Exner , Thomas Daniel , Mark Elliott , Ulrich Riegel
- Applicant: Kai Michael Exner , Thomas Daniel , Mark Elliott , Ulrich Riegel
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: DE102004038015 20040804
- International Application: PCT/EP2005/008198 WO 20050728
- International Announcement: WO2006/015729 WO 20060216
- Main IPC: C08F8/30
- IPC: C08F8/30 ; C08B37/00
Abstract:
Disclosed is a process for postcrosslinking a water absorbing polymer by the polymer being treated with at least one postcrosslinker and postcrosslinked and dried during or after the treatment by raising the temperature, the at least one postcrosslinker being a cyclic carbamate or a cyclic urea, wherein the cyclic carbamate or the cyclic urea was obtained by reacting respectively an aminoalcohol or a diamine with a cyclic carbonate.
Public/Granted literature
- US20080171837A1 Postcrosslining of Water Absorbing Polymers With Cyclic Carbamates and/or Cyclic Ureas Public/Granted day:2008-07-17
Information query
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