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    Water absorbent resin composition and production method thereof
    1.
    发明申请
    Water absorbent resin composition and production method thereof 有权
    吸水性树脂组合物及其制造方法

    公开(公告)号：US20070106013A1

    公开(公告)日：2007-05-10

    申请号：US10562140

    申请日：2004-06-23

    申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

    发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

    IPC分类号： C09D5/02

    CPC分类号： A61L15/60 ,  A61F2013/530686 ,  A61F2013/530744

    摘要： The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 μm and not less, than 106 μm are contained, and a weight average particle diameter of the particles is less than 500 μm and not less than 300 μm and a logarithmic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superior absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

    摘要翻译： 含有颗粒状吸水性树脂的吸水性树脂组合物的制造方法，其中含有95重量％以上的粒径小于850μm，不小于106μm的颗粒，重量平均粒径为 粒子小于500μm且不小于300μm，粒度分布的对数标准偏差（sigmaxi）为0.45以下，吸水性组合物的水溶性成分为35重量％以下， 含有多价金属成分，多价金属成分的提取率为5.0重量％以上且小于100重量％，因此提供了在高湿度下没有任何凝结的高吸湿性树脂组合物，其具有优异的 就吸收性而言，在压力下的扩散吸收性。

    Water absorbent resin composition and production method thereof
    2.
    发明授权
    Water absorbent resin composition and production method thereof 有权
    吸水性树脂组合物及其制造方法

    公开(公告)号：US07960469B2

    公开(公告)日：2011-06-14

    申请号：US10562140

    申请日：2004-06-23

    申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

    发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

    IPC分类号： C08L33/00 ,  C08F220/04 ,  C08K3/10 ,  C08K3/08 ,  C08L29/04

    CPC分类号： A61L15/60 ,  A61F2013/530686 ,  A61F2013/530744

    摘要： The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 μm and not less, than 106 μm are contained, and a weight average particle diameter of the particles is less than 500 μm and not less than 300 μm and a logarithmic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superior absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

    摘要翻译： 含有颗粒状吸水性树脂的吸水性树脂组合物的制造方法，其中，含有95重量％以上的粒径小于850μm且不小于106μm的颗粒，重均粒径为 颗粒小于500μm且不小于300μm，并且颗粒尺寸分布的对数标准偏差（＆amp; mgr）为0.45或更小，并且吸水组合物的水溶性组分为35重量％或 并且含有多价金属成分，多价金属成分的提取率为5.0重量％以上且小于100重量％，从而提供在高湿度下没有任何凝结的吸水性树脂组合物， 其在压力下的吸收性和扩散吸收性方面具有优异的吸收性。

    Particulate water absorbing agent with irregularly pulverized shape
    3.
    发明授权
    Particulate water absorbing agent with irregularly pulverized shape 有权
    颗粒状吸水剂不规则粉碎形状

    公开(公告)号：US07473470B2

    公开(公告)日：2009-01-06

    申请号：US10588530

    申请日：2005-03-29

    申请人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

    发明人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

    IPC分类号： B32B5/16

    CPC分类号： C08J3/12 ,  C08J3/245 ,  C08J2300/14 ,  Y10T428/249924 ,  Y10T428/254 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T442/2344

    摘要： The present invention provides a particulate water absorbing agent for a thin type absorbing substrate suitable for actual use. A particulate water absorbing agent having irregularly pulverized shape, characterized by comprising, a surface crosslinked water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer with an acid group and/or salts thereof, which absorbing agent contains agglomerated particles therein and further satisfies (i) centrifuge retention capacity (CRC) in a physiological saline solution of not lower than 32 g/g, (ii) mass median particle size (D50) of 200 to 400 μm, and (iii) particles smaller than 600 μm and not smaller than 150 μm of 95 to 100% by weight. By using the particulate water absorbing agent, such absorbing articles can be obtained as have few rugged surface after water absorption, excellent liquid permeation property.

    摘要翻译： 本发明提供一种适用于实际使用的薄型吸收性基材用颗粒状吸水剂。 具有不规则粉碎形状的颗粒状吸水剂，其特征在于，包含通过使不饱和单体与酸基和/或其盐交联聚合得到的表面交联吸水性树脂，所述吸收剂含有附聚颗粒，并进一步满足（ i）在不低于32g / g的生理盐水溶液中离心保留容量（CRC），（ii）质量中值粒径（D50）为200-400μm，和（iii）小于600μm的颗粒而不是更小的颗粒 95％至100％重量的150mg。 通过使用颗粒状吸水剂，可以获得这样的吸收制品，其吸水后的表面几乎不渗透，液体渗透性优异。

    Particulate water absorbing agent with irregularly pulverized shape
    4.
    发明申请
    Particulate water absorbing agent with irregularly pulverized shape 有权
    颗粒状吸水剂不规则粉碎形状

    公开(公告)号：US20070141338A1

    公开(公告)日：2007-06-21

    申请号：US10588530

    申请日：2005-03-29

    申请人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

    发明人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

    IPC分类号： B32B1/00 ,  B01J20/00 ,  B01J20/22 ,  B01J20/26 ,  B32B5/16

    CPC分类号： C08J3/12 ,  C08J3/245 ,  C08J2300/14 ,  Y10T428/249924 ,  Y10T428/254 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T442/2344

    摘要： The present invention provides a particulate water absorbing agent for a thin type absorbing substrate suitable for actual use. A particulate water absorbing agent having irregularly pulverized shape, characterized by comprising, a surface crosslinked water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer with an acid group and/or salts thereof, which absorbing agent contains agglomerated particles therein and further satisfies (i) centrifuge retention capacity (CRC) in a physiological saline solution of not lower than 32 g/g, (ii) mass median particle size (D50) of 200 to 400 μm, and (iii) particles smaller than 600 μm and not smaller than 150 μm of 95 to 100% by weight. By using the particulate water absorbing agent, such absorbing articles can be obtained as have few rugged surface after water absorption, excellent liquid permeation property.

    摘要翻译： 本发明提供一种适用于实际使用的薄型吸收性基材用颗粒状吸水剂。 具有不规则粉碎形状的颗粒状吸水剂，其特征在于，包含通过使不饱和单体与酸基和/或其盐交联聚合得到的表面交联吸水性树脂，所述吸收剂含有附聚颗粒，并进一步满足（ i）在不低于32g / g的生理盐水溶液中离心保留容量（CRC），（ii）质量中值粒径（D50）为200-400μm，和（iii）小于600μm的颗粒而不是更小的颗粒 95％至100％重量的150mg。 通过使用颗粒状吸水剂，可以获得这样的吸收制品，其吸水后的表面几乎不渗透，液体渗透性优异。

    Particulate water absorbent containing water absorbent resin as a main component
    5.
    发明申请
    Particulate water absorbent containing water absorbent resin as a main component 有权
    含吸水性树脂的颗粒吸水剂为主要成分

    公开(公告)号：US20050221980A1

    公开(公告)日：2005-10-06

    申请号：US10509000

    申请日：2004-02-09

    申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Hiroyuki Ikeuchi ,  Katsuyuki Wada

    发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Hiroyuki Ikeuchi ,  Katsuyuki Wada

    IPC分类号： B01J20/26

    CPC分类号： C08F220/06 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28016 ,  C08F222/1006 ,  Y10T428/2998 ,  Y10T428/31855 ,  Y10T428/3188

    摘要： A particulate water absorbent contains a water absorbent resin as a main component, the water absorbent resin being a crosslinked polymer of a water-soluble unsaturated monomer. The water absorbent resin is particular in shape and contains particles of a particle size in a range of not less than 106 μm and less than 850 μm in an amount of not less than 90 mass percent with respect to the total mass of the water absorbent resin contained in the particulate water absorbent. The particulate water absorbent has a first salt concentration absorption index of not less than 0.60 as measured by a formula below when ion exchange water is used as an aqueous solution of a constant salt concentration: (salt concentration absorption index)=(absorbency against a pressure of 4.83 kPa with respect to the aqueous solution of a constant salt concentration)/(absorbency against no pressure with respect to the aqueous solution of a constant salt concentration).

    摘要翻译： 颗粒状吸水剂含有吸水性树脂作为主要成分，吸水性树脂为水溶性不饱和单体的交联聚合物。 吸水性树脂特别是形状，并且相对于吸水性树脂的总质量，其粒径在不小于106μm和小于850μm的范围内，其量不小于90质量％ 包含在颗粒状吸水剂中。 当使用离子交换水作为恒盐浓度的水溶液时，颗粒状吸水剂的第一盐浓度吸收指数为不低于0.60;（盐浓度吸收指数）=（吸收压力 相对于恒盐浓度的水溶液为4.83kPa）/（相对于恒盐浓度的水溶液的无压吸收性）。

    Particulate water absorbent containing water absorbent resin as a main component
    6.
    发明授权
    Particulate water absorbent containing water absorbent resin as a main component 有权
    含吸水性树脂的颗粒吸水剂为主要成分

    公开(公告)号：US07435477B2

    公开(公告)日：2008-10-14

    申请号：US10509000

    申请日：2004-02-09

    申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Hiroyuki Ikeuchi ,  Katsuyuki Wada

    发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Hiroyuki Ikeuchi ,  Katsuyuki Wada

    IPC分类号： B32B5/16

    CPC分类号： C08F220/06 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28016 ,  C08F222/1006 ,  Y10T428/2998 ,  Y10T428/31855 ,  Y10T428/3188

    摘要： A particulate water absorbent contains a water absorbent resin as a main component, the water absorbent resin being a crosslinked polymer of a water-soluble unsaturated monomer. The water absorbent resin is particular in shape and contains particles of a particle size in a range of not less than 106 μm and less than 850 μm in an amount of not less than 90 mass percent with respect to the total mass of the water absorbent resin contained in the particulate water absorbent. The particulate water absorbent has a first salt concentration absorption index of not less than 0.60 as measured by a formula below when ion exchange water is used as an aqueous solution of a constant salt concentration: (salt concentration absorption index)=(absorbency against a pressure of 4.83 kPa with respect to the aqueous solution of a constant salt concentration)/(absorbency against no pressure with respect to the aqueous solution of a constant salt concentration).

    摘要翻译： 颗粒状吸水剂含有吸水性树脂作为主要成分，吸水性树脂为水溶性不饱和单体的交联聚合物。 吸水性树脂特别是形状，并且相对于吸水性树脂的总质量，其粒径在不小于106μm和小于850μm的范围内，其量不小于90质量％ 包含在颗粒状吸水剂中。 当使用离子交换水作为恒盐浓度的水溶液时，颗粒状吸水剂的第一盐浓度吸收指数为不低于0.60;（盐浓度吸收指数）=（吸收压力 相对于恒盐浓度的水溶液为4.83kPa）/（相对于恒盐浓度的水溶液的无压吸收性）。

    Water absorbing agent and production method thereof
    8.
    发明申请
    Water absorbing agent and production method thereof 有权
    吸水剂及其制备方法

    公开(公告)号：US20090182294A1

    公开(公告)日：2009-07-16

    申请号：US12295495

    申请日：2007-08-31

    申请人： Hiroyuki Ikeuchi ,  Shigeru Sakamoto ,  Sayaka Machida ,  Katsuyuki Wada

    发明人： Hiroyuki Ikeuchi ,  Shigeru Sakamoto ,  Sayaka Machida ,  Katsuyuki Wada

    IPC分类号： A61F13/53 ,  B01J20/26

    CPC分类号： C08F220/00 ,  A61L15/60 ,  B01J20/267 ,  C08F2/14

    摘要： A water absorbing agent includes water absorbent resin particles which are obtained by polymerizing a water-soluble ethylenic unsaturated monomer and which internally include a cross-linked structure, wherein a pressurized void average radius index is 140 or more. As a result, it is possible to provide a water absorbing agent which essentially includes water absorbent resin particles and is suitable for use in a sanitary material. Specifically, it is possible to improve not only a performance for absorbing and retaining aqueous liquid without pressure or under pressure but also (i) a performance for quickly absorbing aqueous liquid with a great help of a performance of a fibrous material, (ii) a performance for dispersing the aqueous liquid after absorbing the aqueous liquid, and (iii) a performance for retaining the aqueous liquid after absorbing the aqueous liquid.

    摘要翻译： 吸水剂包括通过使水溶性烯属不饱和单体聚合并且内部包含交联结构而获得的吸水性树脂颗粒，其中加压空隙平均半径指数为140以上。 结果，可以提供基本上包含吸水性树脂颗粒并适用于卫生材料的吸水剂。 具体而言，不仅可以改善在没有压力或压力的情况下吸收和保留水性液体的性能，还可以（i）在纤维材料的性能的帮助下快速吸收含水液体的性能，（ii） 吸收水性液体后分散水性液体的性能，（iii）在吸收水性液体后保持水性液体的性能。