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    Water-absorbing agent and production process therefor, and sanitary material
    1.
    发明授权
    Water-absorbing agent and production process therefor, and sanitary material 有权
    吸水剂及其生产工艺及卫生材料

    公开(公告)号：US07312278B2

    公开(公告)日：2007-12-25

    申请号：US10333614

    申请日：2002-06-07

    申请人： Yasuhisa Nakashima ,  Hiroyuki Ikeuchi ,  Yasuhiro Fujita ,  Makoto Nagasawa ,  Shigeru Sakamoto ,  Yorimichi Dairoku ,  Katsuyuki Wada ,  Shinichi Fujino ,  Toshimasa Kitayama ,  Kazuhisa Hitomi

    发明人： Yasuhisa Nakashima ,  Hiroyuki Ikeuchi ,  Yasuhiro Fujita ,  Makoto Nagasawa ,  Shigeru Sakamoto ,  Yorimichi Dairoku ,  Katsuyuki Wada ,  Shinichi Fujino ,  Toshimasa Kitayama ,  Kazuhisa Hitomi

    IPC分类号： C08L33/02 ,  C08L63/00

    CPC分类号： A61L15/60

    摘要： There is provided: a production process for a water-absorbing agent having stable properties in a short time; and a water-absorbing agent. The production process comprises the step of blending an acid-group-containing water-absorbent resin powder with a noncrosslinkable water-soluble inorganic base and/or an irreducible alkaline-metal-salt pH buffer and further with a dehydratable crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, or comprises the step of blending an acid-group-containing water-absorbent resin powder with the above base and/or pH buffer and further with a crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, wherein the resin powder has a weight-average particle diameter of 300 to 600 μm wherein the ratio of fine powders having particle diameters of not larger than 150 μm in the resin powder is not more than 10 weight %.

    摘要翻译： 提供了一种在短时间内具有稳定性能的吸水剂的生产方法; 和吸水剂。 生产方法包括将含酸基的吸水性树脂粉末与不可交联的水溶性无机碱和/或不可还原的碱金属盐pH缓冲剂以及可与酸反应的可脱水交联剂 从而使树脂粉末进行交联处理，或者包括将含酸基的吸水性树脂粉末与上述碱和/或pH缓冲剂以及与酸基反应的交联剂进一步混合的步骤，由此 使树脂粉末进行交联处理，其中树脂粉末的重均粒径为300〜600μm，其中树脂粉末中粒径不大于150μm的细粉末的比率不大于10重量％ 。

    Particulate water absorbing agent, water-absorbent core and absorbing article
    3.
    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
    4.
    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。

    Water-absorbent composition, process for production thereof, absorbent and absorbing product
    6.
    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 AND PRODUCTION METHOD FOR THE SAME
    8.
    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。

    Water absorbent resin composition and method for producing the same
    10.
    发明授权
    Water absorbent resin composition and method for producing the same 有权
    吸水性树脂组合物及其制造方法

    公开(公告)号：US08026294B2

    公开(公告)日：2011-09-27

    申请号：US12681874

    申请日：2008-10-10

    申请人： Katsuyuki Wada ,  Yasuhisa Nakashima

    发明人： Katsuyuki Wada ,  Yasuhisa Nakashima

    IPC分类号： A61L9/013

    CPC分类号： C08L33/02 ,  B01J20/261 ,  B01J2220/44 ,  B01J2220/46 ,  C08K5/09 ,  C08K5/1535 ,  C08L97/00 ,  C08L2666/26

    摘要： An object is to provide a water absorbent resin composition containing a water absorbent resin as a main component, with excellent deodorant property and antimicrobial property without impairing appearance and absorption characteristics of the water absorbent resin. The water absorbent resin composition according to the first aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and an extract of bamboo and an extract of tea. The water absorbent resin composition according to the second aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and at least two kinds of compounds selected from a group consisting of hexanoic acid (salt), ethyl butyrate, and 3-methyl-2-cyclopenten-1-one. In addition, the method for producing the water absorbent resin composition according to the third aspect includes the step of adding an alcoholic solution of an extract of bamboo, before or after polymerization of an unsaturated monomer containing an acrylic acid (salt) as a main component.

    摘要翻译： 本发明的目的是提供一种吸水性树脂作为主要成分的吸水性树脂组合物，具有优异的除臭性和抗菌性，而不损害吸水性树脂的外观和吸收特性。 根据第一方面的吸水性树脂组合物包括含有以聚丙烯酸（盐）为基础的吸水性树脂作为主要成分的吸水性树脂，以及竹子提取物和茶提取物。 根据第二方面的吸水性树脂组合物包括含有基于聚丙烯酸（盐）的吸水性树脂作为主要成分的吸水性树脂和至少两种选自己酸（盐） ，丁酸乙酯和3-甲基-2-环戊烯-1-酮。 此外，根据第三方面的吸水性树脂组合物的制造方法包括在含有丙烯酸（盐）作为主要成分的不饱和单体的聚合前后添加竹提取物的醇溶液的步骤 。