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    Water-absorbent composition, process for production thereof, absorbent and absorbing product
    2.
    发明授权
    Water-absorbent composition, process for production thereof, absorbent and absorbing product 有权
    吸水剂组合物，其制造方法，吸收和吸收产品

    公开(公告)号：US07825169B2

    公开(公告)日：2010-11-02

    申请号：US10448456

    申请日：2003-05-30

    申请人： Katsuyuki Wada ,  Hiroko Ueda ,  Kunihiko Ishizaki ,  Yoshio Irie ,  Yasuhisa Nakashima

    发明人： Katsuyuki Wada ,  Hiroko Ueda ,  Kunihiko Ishizaki ,  Yoshio Irie ,  Yasuhisa Nakashima

    IPC分类号： A61L9/013

    CPC分类号： A61L15/60 ,  A61F13/8405 ,  A61L9/01 ,  A61L15/40 ,  B01J20/267 ,  B01J2220/4875

    摘要： A water-absorbent composition includes: a specific plant extract; a water-absorbent resin whose surface portion and/or periphery thereof is treated; and/or a water-absorbent resin having a specific property. Specifically, it is preferable to use a water-absorbent resin having three characteristics: (1) a specific neutralization rate, (2) a specific particle diameter, and (3) a specific plant extract. The water-absorbent composition has a superior deodorant performance and an absorbent characteristic when the water-absorbent composition is used (provided) in an absorbing product such as a paper diaper, thereby providing a superior deodorant performance and a superior absorbent characteristic to the foregoing absorbing product.

    摘要翻译： 吸水组合物包括：特定植物提取物; 其表面部分和/或其周边被处理的吸水性树脂; 和/或具有特定性质的吸水性树脂。 具体而言，优选使用具有三个特征的吸水性树脂：（1）特定中和率，（2）特定粒径，和（3）特定植物提取物。 吸水性组合物在纸尿布等吸收体中使用（设置）吸水性组合物时具有优异的除臭性能和吸收特性，从而为上述吸收性物质提供优异的除臭性能和优异的吸收特性 产品。

    Particulate water absorbing agent, water-absorbent core and absorbing article
    5.
    发明授权
    Particulate water absorbing agent, water-absorbent core and absorbing article 有权
    颗粒吸水剂，吸水芯和吸收制品

    公开(公告)号：US07745537B2

    公开(公告)日：2010-06-29

    申请号：US11817839

    申请日：2006-04-06

    申请人： Yasuhisa Nakashima ,  Toshihiro Takaai ,  Katsuyuki Wada

    发明人： Yasuhisa Nakashima ,  Toshihiro Takaai ,  Katsuyuki Wada

    IPC分类号： C08L33/02

    CPC分类号： A61L15/60 ,  Y10T428/2982

    摘要： The present invention provides a particulate water absorbing agent for absorbent cores which is excellent in powder conveying property, and achieves sufficient absorption performances for use in absorbent cores in particulate water absorbing agents including a water absorbing resin as a principal component, and which further is suitable for practical applications. In the present invention, characteristics that had not been known conventionally at all, i.e., “permeability potential under pressure (PPUP)” and “frictional charge being a positive charge” of the particulate water absorbing agent are regulated at a time, and furthermore, regulation of the “moisture content of 2 to 10% by weight” is perfected. Also, the particulate water absorbing agent including (A) a water-swelling crosslinked polymer having a constitutional unit derived from an unsaturated monomer containing an acid group and/or a salt thereof; and (B) water fulfills certain requirements.

    摘要翻译： 本发明提供了一种吸收芯粒状吸水剂，其粉末输送性优异，在吸水性树脂作为主要成分的颗粒状吸水剂中，在吸收芯中得到充分的吸收性能，并且还适合 适用于实际应用。 在本发明中，一次调整了传统上一般不知道的特征，即“压力下的渗透势（PPUP）”和“微粒吸收剂的摩擦带电为正电荷”，此外， “含水量为2〜10重量％”的调节得到了完善。 此外，所述颗粒状吸水剂包括（A）具有衍生自含有酸基的不饱和单体和/或其盐的结构单元的水溶胀性交联聚合物; 和（B）水满足一定的要求。

    Particulate Water Absorbing Agent, Water-Absorbent Core and Absorbing Article
    6.
    发明申请
    Particulate Water Absorbing Agent, Water-Absorbent Core and Absorbing Article 有权
    颗粒吸水剂，吸水芯和吸收制品

    公开(公告)号：US20090008604A1

    公开(公告)日：2009-01-08

    申请号：US11817839

    申请日：2006-04-06

    申请人： Yasuhisa Nakashima ,  Toshihiro Takaai ,  Katsuyuki Wada

    发明人： Yasuhisa Nakashima ,  Toshihiro Takaai ,  Katsuyuki Wada

    IPC分类号： C09K3/00 ,  B32B5/16 ,  C08F120/02

    CPC分类号： A61L15/60 ,  Y10T428/2982

    摘要： The present invention provides a particulate water absorbing agent for absorbent cores which is excellent in powder conveying property, and achieves sufficient absorption performances for use in absorbent cores in particulate water absorbing agents including a water absorbing resin as a principal component, and which further is suitable for practical applications. In the present invention, characteristics that had not been known conventionally at all, i.e., “permeability potential under pressure (PPUP)” and “frictional charge being a positive charge” of the particulate water absorbing agent are regulated at a time, and furthermore, regulation of the “moisture content of 2 to 10% by weight” is perfected. Also, the particulate water absorbing agent including (A) a water-swelling crosslinked polymer having a constitutional unit derived from an unsaturated monomer containing an acid group and/or a salt thereof; and (B) water fulfills certain requirements.

    摘要翻译： 本发明提供了一种吸收芯粒状吸水剂，其粉末输送性优异，在吸水性树脂作为主要成分的颗粒状吸水剂中，在吸收芯中得到充分的吸收性能，并且还适合 适用于实际应用。 在本发明中，一次调整了传统上一般不知道的特征，即“压力下的渗透势（PPUP）”和“微粒吸收剂的摩擦带电为正电荷”，此外， “含水量为2〜10重量％”的调节得到了完善。 此外，所述颗粒状吸水剂包括（A）具有衍生自含有酸基的不饱和单体和/或其盐的结构单元的水溶胀性交联聚合物; 和（B）水满足一定的要求。

    Polyacrylic acid (salt)-based water absorbent resin powder and method for producing the same
    8.
    发明授权
    Polyacrylic acid (salt)-based water absorbent resin powder and method for producing the same 有权
    聚丙烯酸（盐）系吸水树脂粉末及其制造方法

    公开(公告)号：US09044525B2

    公开(公告)日：2015-06-02

    申请号：US14129792

    申请日：2012-06-29

    申请人： Kazushi Torii ,  Reiko Nakatsuru ,  Yasuhisa Nakashima ,  Katsuyuki Wada ,  Kunihiko Ishizaki

    发明人： Kazushi Torii ,  Reiko Nakatsuru ,  Yasuhisa Nakashima ,  Katsuyuki Wada ,  Kunihiko Ishizaki

    IPC分类号： A61L15/26 ,  A61L15/60 ,  C08F20/06 ,  C08J3/24 ,  C08K5/00 ,  C08L33/02 ,  C08K5/17

    CPC分类号： A61L15/26 ,  A61L15/60 ,  C08F20/06 ,  C08F220/06 ,  C08J3/245 ,  C08J2333/02 ,  C08K5/0091 ,  C08K5/175 ,  C08L33/02 ,  Y10T428/2982 ,  C08F2222/1013

    摘要： Provided is a water absorbent resin having excellent liquid permeability, water absorbent speed, anti-impact stability, and weather resistance. Provided is a polyacrylic acid (salt)-based water absorbent resin powder in which the water absorption capacity without load (CRC) is 30 to 45 [g/g], the water absorption capacity under load (AAP 0.3) is 20 to 35 [g/g], the water absorption capacity under load (AAP 0.7) is 10 to 28 [g/g], and the weight average particle diameter (D50) is 300 to 500 μm, characterized by including p-methoxyphenol; having a degradable soluble component (0.05% L-A (saline) for 2 hours/60° C., one hour extraction rinse/room temperature) of 40% by weight or less; and having a internal gas bubbles ratio of 0.1 to 2.5%, as specified by the following equation. (Internal gas bubbles ratio)[%]={(True density)−(Apparent density)}/(True density)×100

    摘要翻译： 提供具有优异的透液性，吸水速度，抗冲击稳定性和耐候性的吸水性树脂。 本发明提供无负载吸水能力（CRC）为30〜45 [g / g]的聚丙烯酸（盐）系吸水性树脂粉末，负荷吸水量（AAP 0.3）为20〜35 [ g / g]，负荷下的吸水量（AAP 0.7）为10〜28 [g / g]，重均粒径（D50）为300〜500μm，其特征在于包括对甲氧基苯酚; 具有40重量％以下的可降解可溶成分（0.05％L-A（盐水）2小时/ 60℃，1小时萃取冲洗/室温） 内部气泡比为0.1〜2.5％，如下式所示。 （内部气泡比）[％] = {（真密度） - （表观密度）} /（真密度）×100

    PARTICULATE WATER-ABSORBING AGENT AND PRODUCTION METHOD FOR THE SAME
    10.
    发明申请
    PARTICULATE WATER-ABSORBING AGENT AND PRODUCTION METHOD FOR THE SAME 有权
    颗粒吸水剂及其制备方法

    公开(公告)号：US20130175473A1

    公开(公告)日：2013-07-11

    申请号：US13876728

    申请日：2011-09-30

    申请人： Katsuyuki Wada ,  Yasuhisa Nakashima

    发明人： Katsuyuki Wada ,  Yasuhisa Nakashima

    IPC分类号： B01J20/28

    CPC分类号： B01J20/28011 ,  A61L15/60 ,  B01J20/223 ,  B01J20/267 ,  B01J20/3085 ,  C08F220/06 ,  C08J3/203 ,  C08J3/245 ,  C08J2333/02 ,  C08F2222/1013

    摘要： Provided is a water-absorbing agent having enhanced performance in both the centrifuge retention capacity and the absorption against pressure (particularly, the vertical diffusion absorption amount) of a water-absorbing resin, and also, a water-absorbing agent which can provide an absorbent core having a large absorption amount in a diaper, having improved diffusibility and liquid permeability, and having a smaller re-wet amount, is provided at low cost.Disclosed is a particulate water-absorbing agent containing a surface-crosslinked polyacrylic acid (salt)-type water-absorbing resin as a main component, and containing at least one spacer selected from a polycation and water-insoluble fine particles, the particulate water-absorbing agent satisfying an free swell capacity (FSC) of 55 to 65 [g/g], an absorption against pressure (AAP—4.83 kPa) of 20 to 30 [g/g], and a vertical diffusion absorption amount under pressure (VDAUP—4.83 kPa) of 30 to 80 g.

    摘要翻译： 本发明提供一种在吸水树脂的离心保留能力和耐压吸收（特别是垂直扩散吸收量）两方面具有增强性能的吸水剂，以及可提供吸收性能的吸水剂 以低成本提供具有改善的扩散性和液体渗透性并且具有较小再湿度的尿布中吸收量大的芯。 本发明提供一种含有表面交联聚丙烯酸（盐）型吸水性树脂作为主要成分并含有至少一种选自聚阳离子和水不溶性微粒的间隔物的颗粒状吸水剂， 满足55〜65 [g / g]的自由溶胀能力（FSC），20〜30 [g / g]的压力吸收（AAP-4.83kPa）和压力下的垂直扩散吸收量（VDAUP -4.83kPa）为30〜80g。