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    PROCESS FOR SUPERABSORBENT POLYMER AND CROSSLINKER COMPOSITION
    2.
    发明公开
    PROCESS FOR SUPERABSORBENT POLYMER AND CROSSLINKER COMPOSITION 有权
    程序对高吸水性聚合物和联网组成

    公开(公告)号：EP2797972A1

    公开(公告)日：2014-11-05

    申请号：EP12795801.5

    申请日：2012-12-03

    申请人： Evonik Corporation

    发明人： NAUMANN, Matthias ,  SCHUBERT, Frank ,  LOICK, Christoph ,  MCINTOSH, Stanley A

    IPC分类号： C08F220/06 ,  A61L15/60

    CPC分类号： B01J20/261 ,  A61L15/60 ,  C07D301/00 ,  C07D303/36 ,  C08F220/06 ,  C08F220/32

    摘要： The present invention further relates to a process to make a superabsorbent polymer comprising the steps of a) preparing a neutralized monomer solution comprising a polymerizable monomer selected from unsaturated acid groups-containing monomers, ethylenically unsaturated carboxylic acid anhydride, salts, or derivatives thereof and a caustic agent selection from an alkali agent, wherein the polymerizable monomer is neutralized to from about 50mol% to about 85mol%; b) forming a crosslinker monomer mixture by adding an internal crosslinker composition to the neutralized monomer solution wherein the internal crosslinking composition is the reaction product of a stoichiometric excess of amine with a glycidyl compound, wherein the internal crosslinker composition has a residual amount of glycidyl compounds of less than about 500ppm based on the mass of the internal crosslinker composition; and c) polymerizing the crosslinker monomer mixture to make a superabsorbent polymer.