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    • 4. 发明申请
    • SUPER-ABSORBING POLYMERS WITH RAPID ABSORPTION PROPERTIES AND METHOD FOR PRODUCING THE SAME
    • 用以制定快速吸收性能和方法高吸水性树脂
    • WO2013072268A1
    • 2013-05-23
    • PCT/EP2012072352
    • 2012-11-12
    • EVONIK DEGUSSA GMBHWATTEBLED LAURENTHARREN JOERGNAUMANN MATTHIASFURNO FRANCKLOBERT MATTHIASTENI RAINER
    • WATTEBLED LAURENTHARREN JOERGNAUMANN MATTHIASFURNO FRANCKLOBERT MATTHIASTENI RAINER
    • C08F220/06A61L15/00C08J9/28
    • A61L15/225A61L15/24A61L15/60B01J20/267B01J20/3064C08F216/1416C08F220/06C08F222/1006C08J3/245C08J2333/02C08L33/02
    • This invention relates to a method for producing a water-absorbing polymer, including the following steps: (i) mixing (alpha1) 0.1 to 99.999 wt%, preferably 20 to 98.99 wt%, and particularly preferably 30 to 98.95 wt% polymerizable, ethylenically unsaturated, acid-group-containing monomers or their salts, or polymerizable, ethylenically unsaturated, monomers containing a protonated or quaternized nitrogen atom, or their mixtures, wherein mixtures containing at least ethylenically unsaturated, acid-group containing monomers, preferably acrylic acid, are especially preferred; (alpha2) 0 to 70 wt%, preferably 1 to 60 wt%, and particularly preferably 1 to 40 wt% polymerized, ethylenically unsaturated, monomers that are copolymerizable with (alpha1); (alpha3) 0.001 to 10 wt%, preferably 0.01 to 7 wt%, and particularly preferably 0.05 to 5 wt% one or more cross-linking agent(s); (alpha4) 0 to 30 wt%, preferably 1 to 20 wt%, and particularly preferably 5 to 10 wt% water-soluble polymers; and (alpha5) 0 to 20 wt%, preferably 0.01 to 7 wt%, and particularly preferably 0.05 to 5 wt% one or more additive(s), wherein the total quantity by weight of (alpha1) to (alpha5) amounts to 100 wt%, (ii) radical polymerization while cross-linking, in order to form a water-insoluble, aqueous untreated hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sifting the water-absorbing polymer, (v) surface post-cross-linking the ground and sifted hydrogel polymer, and (vi) drying and processing the water-absorbing polymer, wherein, before the admixture of the initiator and the start of radical polymerization, 0.01 to 5 wt%, preferably 0.02 to 2wt%, and particularly preferably 0.07 to 1 wt% of at least one surfactant, relative to acrylic acid, from the group of non-ionic, ionic or amphoteric surfactants and, if required, 0.01 to 5 wt%, preferably 0.02 to 2 wt%, and particularly preferably 0.07 to 1 wt% foaming agent with a particle size of 10 µm to 900 µm, are added, relative to the water-absorbing polymer; method for producing a hydrogel polymer; the product obtained by this method; and use.
    • 本发明涉及一种用于生产吸水性聚合物,其特征在于该方法步骤(i)Mischenvon(α1)为0.1〜99.999重量%,优选为20〜98.99重量%和特别优选30〜98.95重量 .-%含聚合性基团或它们的盐或可聚合的烯键式不饱和,质子化的或季铵化的单体,或它们的混合物,其中至少烯属不饱和,含酸基的单体的含氮,优选含丙烯酸的混合物是特别优选的(α-2的烯属不饱和单体 )0至70重量%,优选为1〜60重量%,特别优选为1至40重量聚合的%,烯属不饱和共聚(α1)的单体,(素α3)0.001〜10%(重量), 优选为0.01〜7重量%,更优选为0.05〜5重量的一种或多种交联剂%,(的α4)0至30重量%,优选为1b中 是20%的重量%和水溶性聚合物的特别优选为5〜10重量%,和(素α5)0至20重量%,优选0.01〜7重量%,特别优选为0.05〜5 .-一种或多种助剂,其中所述量的重量比(α1)至(素α5)的总和为100重量%,(ⅱ)自由基聚合,与交联的%,以形成不溶于水的,含水的未处理的水凝胶聚合物,(III) 干燥的水凝胶聚合物,(IV)研磨和筛分吸水性聚合物,(v)的经研磨和筛分的水凝胶聚合物的表面后交联,和(vi)干燥和吸水性聚合物的包装,其中,在加入引发剂和之前的单体水溶液 自由基聚合的开始,0.01〜5重量%,优选为0.02〜2重量%,至少一种表面活性剂的特别优选为0.07〜1重量%,基于丙烯酸,选自 非离子,非离子或两性十 侧和任选0.01至5重量%,优选为0.02〜2重量%,特别优选为0.07〜1加入到重量%的发泡剂具有10微米的颗粒大小至900微米,基于 的吸水性聚合物,用于制备水凝胶聚合物,该方法和使用该产品的方法。