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    RETARDED SUPERABSORBENT POLYMERS
    5.
    发明申请
    RETARDED SUPERABSORBENT POLYMERS 审中-公开
    阻滞超吸收聚合物

    公开(公告)号：US20110095227A1

    公开(公告)日：2011-04-28

    申请号：US12994201

    申请日：2009-05-15

    申请人： Gregor Herth ,  Michael Schinabeck ,  Stefan Friedrich

    发明人： Gregor Herth ,  Michael Schinabeck ,  Stefan Friedrich

    IPC分类号： B01J20/26 ,  C08F228/02 ,  C08F220/56 ,  C08J3/28

    CPC分类号： C08F220/60 ,  C04B24/2652 ,  C04B28/02 ,  C04B40/0039 ,  C04B2103/0051 ,  C04B2103/0062 ,  C04B40/0608 ,  C04B24/26

    摘要： What is claimed is a superabsorbent polymer (SAP) with anionic and/or cationic properties and retarded swelling action, which was prepared by polymerizing ethylenically unsaturated vinyl compounds. This SAP is characterized in that its swelling begins no earlier than after 5 minutes and in that it was prepared with the aid of at least one process variant selected from the group of a) polymerizing the monomer components in the presence of a combination consisting of at least one hydrolysis-stable crosslinker and at least one hydrolysis-labile crosslinker; b) polymerizing at least one permanently anionic monomer and at least one hydrolysable cationic monomer; c) coating a core polymer component with at least one further polyelectrolyte as a shell polymer; d) polymerizing at least one hydrolysis-stable monomer with at least one hydrolysis-labile monomer in the presence of at least one crosslinker. Owing to the variability of the three preparation alternatives with regard to the starting materials and the process conditions, but also owing to the possible combinations with one another, the present invention can provide superabsorbent polymers which are suitable especially for use in foams, mouldings and fibres, but also as carriers for plant growth- and fungal growth-regulating agents, and for controlled release of active ingredients, or in construction materials. The present polymers are suitable especially for use as construction material additives.

    摘要翻译： 所要求的是具有阴离子和/或阳离子性质和延迟溶胀作用的超吸收聚合物（SAP），其通过聚合烯属不饱和乙烯基化合物制备。 该SAP的特征在于其溶胀不迟于5分钟之后开始，并且其在至少一种选自以下的方法变体制备：a）在由以下组合组成的组合的存在下聚合单体组分： 至少一种水解稳定的交联剂和至少一种水解不稳定的交联剂; b）聚合至少一种永久性阴离子单体和至少一种可水解阳离子单体; c）用至少一种另外的聚电解质作为壳聚合物涂覆芯聚合物组分; d）在至少一种交联剂的存在下，使至少一种水解不稳定的单体与至少一种水解稳定的单体聚合。 由于起始材料和工艺条件的三种制备替代品的可变性，而且由于彼此可能的组合，本发明可以提供特别适用于泡沫，模制品和纤维的超吸收聚合物 ，也可用作植物生长和真菌生长调节剂的载体，以及活性成分的控制释放或建筑材料。 本发明的聚合物特别适用于建筑材料添加剂。