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    Water-absorbing foamy crosslinked polymer
    1.
    发明专利
    Water-absorbing foamy crosslinked polymer 有权
    吸水泡沫交联聚合物

    公开(公告)号：JP2008024943A

    公开(公告)日：2008-02-07

    申请号：JP2007215899

    申请日：2007-08-22

    Applicant: Basf Ag ,  ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft

    Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN DR ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

    IPC: C08J9/12 ,  A61F13/00 ,  A61F13/15 ,  A61F13/49 ,  A61F13/53 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  B01J20/26 ,  C05G3/04 ,  C08F2/44 ,  C08F2/48 ,  C08J9/30

    CPC classification number: C05G3/04 ,  A61L15/425 ,  A61L15/60 ,  C08J9/30

    Abstract: PROBLEM TO BE SOLVED: To provide a water-absorbing foamy crosslinked polymer.
    SOLUTION: The process for producing the polymer comprises a first step (I) of foaming a polymerizable aqueous mixture of (a) a monoethylene unsaturated monomer having an acid radical in which at least its 50 mol% is neutralized, (b) optionally other monoethylene unsaturated monomer, (c) a crosslinking agent, (d) an initiator, (e) 0.1-20 wt.% of at least one kind of surfactant, (f) optionally at least one kind of solubilizer, and (g) optionally, a thickener, foam stabilizer, polymerization regulator, filler and/or foam nucleus-forming agent, and of dispersing fine foams of inactive gas into the radical to carry out foaming, and a second step (II) of forming a foamy hydrogel and optionally adjusting a water content of the foamy polymer to 1-60 wt.% to polymerize the foamed mixture.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供吸水泡沫交联聚合物。 解决方案：制备聚合物的方法包括：（a）具有至少其50mol％中和的酸基的单亚乙烯不饱和单体的可聚合水性混合物的发泡的第一步骤（I），（b） 任选的其它单乙烯不饱和单体，（c）交联剂，（d）引发剂，（e）0.1-20重量％的至少一种表面活性剂，（f）任选至少一种增溶剂，和（g ）任选的增稠剂，泡沫稳定剂，聚合调节剂，填料和/或泡沫成核剂，以及将惰性气体的细泡沫分散到自由基中以进行发泡;以及形成泡沫状水凝胶的第二步骤（II） 并且任选地将泡沫聚合物的水含量调节至1-60重量％以聚合发泡混合物。 版权所有（C）2008，JPO＆INPIT

    6.
    发明专利
    未知

    公开(公告)号：ES2166068T3

    公开(公告)日：2002-04-01

    申请号：ES97907048

    申请日：1997-02-27

    Applicant: BASF AG

    Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

    IPC: A61F13/00 ,  A61F13/53 ,  A61L15/00 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  C05G3/80 ,  C08F2/44 ,  C08F2/48 ,  C08F220/06 ,  C08J9/30 ,  C08L33/02

    Abstract: Water-absorbing foamlike crosslinked polymers which are obtainable by(I) foaming a polymerizable aqueous mixture which consists of(a) monoethylenically unsaturated monomers containing acid groups, which are at least 50 mol % neutralized,(b) with or without other monoethylenically unsaturated monomers,(c) crosslinker,(d) initiators,(e) from 0.1 to 20% by weight of at least one surfactant,(f) with or without one or more solubilizers and(g) with or without thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,the foaming being performed by dispersing fine bubbles of a gas inert to free radicals, and(II) polymerizing the foamed mixture with formation of a foamed hydrogel, with or without adjusting the water content of the foamed polymer to from 1 to 60% by weight, processes for their preparation and their use in sanitary articles which are used for absorbing body fluids and in dressing materials for covering wounds are described.

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