Superabsorbent polymers having improved processability
    4.
    发明授权
    Superabsorbent polymers having improved processability 有权
    超吸收性聚合物具有改善的加工性能

    公开(公告)号:US06323252B1

    公开(公告)日:2001-11-27

    申请号:US09403812

    申请日:2000-01-10

    IPC分类号: C08J928

    摘要: A composition comprising aqueous fluid absorbent polymer particles which have been heat-treated at temperatures greater than 170° C. for more than 10 minutes, wherein the composition has been remoisturized, after the heat-treatment, with an aqueous additive solution, in the absence of an organic solvent or water-insoluble, non-swellable powder, and comprises 1 to 10 percent by weight, based on the total weight of the composition, water and wherein the composition is characterized by the ability to absorb at least 20 grams of a 0.9 weight percent aqueous saline solution under a pressure of 0.3 psi (21,000 dynes/cm2), that is, a 60 minute 0.3 psi (21,000 dynes/cm2) AUL greater than 20 grams/gram. A process for preparing such a composition.

    摘要翻译: 一种组合物,其包含在大于170℃的温度下热处理超过10分钟的含水液体吸收聚合物颗粒,其中在热处理后,将组合物用水性添加剂溶液在不存在的情况下被再润湿 的有机溶剂或水不溶性的不溶胀粉末,并且基于组合物的总重量,包含1-10重量%的水,并且其中所述组合物的特征在于能够吸收至少20克的 0.9重量%的盐水溶液,在0.3psi(21,000达因/厘米2)的压力下,即大于20克/克的60分钟0.3psi(21,000达因/厘米2)AUL。 制备这种组合物的方法。

    High internal phase polyelectrolyte emulsions for the manufacture of superabsorbent polymers and superabsorbent polymers made therefrom
    5.
    发明授权
    High internal phase polyelectrolyte emulsions for the manufacture of superabsorbent polymers and superabsorbent polymers made therefrom 失效
    用于制造由其制备的超吸收聚合物和超吸收聚合物的高内相聚电解质乳液

    公开(公告)号:US06916864B2

    公开(公告)日:2005-07-12

    申请号:US10848314

    申请日:2004-05-18

    CPC分类号: C08F2/32 A61L15/60 C08L33/02

    摘要: The present invention refers to a high internal phase polyelectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyelectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.

    摘要翻译: 本发明涉及高内相聚电解质乳液,其可用于制造具有两相的超吸收聚合物:i)连续油相,和ii)在聚合之前含有单体水溶液的分散水相和聚电解质 水溶性或水溶胀性或非常轻微的交联形式,其中聚合发生在分散的水相中,并且其中分散的水相含有高浓度的聚电解质。 本发明还涉及一种制备这种乳液并反转这些乳液以形成超吸收性聚合物的膜或其它图案的方法。 也考虑了含有SAP薄膜或本发明制备的其它图案的吸收结构。

    Manufacture of superabsorbents in high internal phase emulsions
    7.
    发明授权
    Manufacture of superabsorbents in high internal phase emulsions 失效
    高内相乳液中超吸收剂的制造

    公开(公告)号:US06835783B1

    公开(公告)日:2004-12-28

    申请号:US09913621

    申请日:2001-08-15

    IPC分类号: A61L1524

    CPC分类号: C08F2/32 A61L15/60 C08L33/02

    摘要: The present invention refers to a high internal phase polyclectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyclectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.

    摘要翻译: 本发明涉及一种高内相聚电解质乳液,其可用于制造具有两相的超吸收聚合物:i)连续油相和ii)在聚合之前含有单体水溶液的分散水相和聚合电解质 水溶性或水溶胀性或非常轻微交联的形式,其中聚合发生在分散的水相中,并且其中分散的水相含有高浓度的聚电解质。 本发明还涉及一种制备这种乳液并反转这些乳液以形成超吸收性聚合物的膜或其它图案的方法。 也考虑了含有SAP薄膜或本发明制备的其它图案的吸收结构。