专利名称：METHOD FOR THE STABILIZATION OF
POLYVINYLPYRROLIDONES
发明人：KOLTER, KARL,GARCIA CASTRO,
IVETTE,PINNEKER, OLGA,WIDMAIER,RALF,STRUBE, KARL-HERMANN,FUSSNEGGER, BERNHARD,KROLL,MANFRED,HOEFER, FRANK,ASCHERL,HERMANN,SCHMIDT, PETER
申请号：EP06708084.6申请日：20060208公开号：EP1851269B1公开日：20100609
摘要：Disclosed is a method for stabilizing polyvinylpyrrolidones, which is
characterized in that the polyvinylpyrrolidones are treated with sulfur dioxide, sulfurousacid, or alkali metal sulfites and then with radical absorber, and the treated solutions aretransformed into the powdered polyvinylpyrrolidones by means of drying.
申请人：BASF SE,BASF SE,BASF SE
地址：DE
国籍：DE
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