Invention Application
- Patent Title: METHOD FOR PREPARING AN AQUEOUS POLYACRYLAMIDE SOLUTION
- Patent Title (中): 制备水性聚丙烯酰胺溶液的方法
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Application No.: PCT/EP2017/059759Application Date: 2017-04-25
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Publication No.: WO2017186697A1Publication Date: 2017-11-02
- Inventor: SPRAFKE, Hazel Anne , EL-TOUFAILI, Faissal-Ali , LANGLOTZ, Bjoern , BARRATT, John , BRINGMANN, Tobias , FONSECA ZEPEDA, Gabriela Eugenia , JECK, Sandra , LOESCH, Dennis , MECKELNBURG, Dirk , OSTERMAYR, Markus , SCHUBE, Bernd , SOETJE, Oliver
- Applicant: BASF SE
- Applicant Address: Carl-Bosch-Str. 38 67056 Ludwigshafen am Rhein DE
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: Carl-Bosch-Str. 38 67056 Ludwigshafen am Rhein DE
- Agency: HERZOG FIESSER & PARTNER PATENTANWÄLTE PARTG MBB
- Priority: EP16167080.7 20160426
- Main IPC: C08F20/56
- IPC: C08F20/56
Abstract:
A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: - hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, - directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and - directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution.
Information query
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