METHOD FOR PRODUCING POLYVINYLAMINE CROSSLINKED POLYMER PARTICLES

    公开(公告)号:EP3196217A4

    公开(公告)日:2018-06-13

    申请号:EP15842896

    申请日:2015-05-26

    申请人: HYMO CORP

    发明人: HONDA GO

    摘要: A method for efficiently producing polyvinylamine crosslinked polymer particles by simple operation without using an organic solvent is provided. In the present invention, polyvinylamine crosslinked polymer particles can be produced by performing suspension polymerization in salt water containing N-vinylcarboxylic acid amide and a polyvinyl compound in the presence of a dispersant to obtain particles of a polyvinyl carboxylic acid amide crosslinked polymer and subsequently hydrolyzing the polyvinyl carboxylic acid amide crosslinked polymer. Divinylbenzene is preferred as the polyvinyl compound. N-Vinylcarboxylic acid amide, acrylonitrile, and a polyvinyl compound may be used.