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公开(公告)号：US06469080B2
公开(公告)日：2002-10-22
申请号：US09734190
申请日：2000-12-12
IPC分类号： C08K509
摘要： The present invention provides a water-absorbent resin composition which contains an aminoacetic chelating agent and is excellent in the urine resistance, wherein the water-absorbent resin composition is excellent further in the light resistance and becomes little colored and might have deodorizability. A water-absorbent resin composition, which comprises a water-absorbent resin and an aminoacetic chelating agent, wherein the mixing ratio of the aminoacetic chelating agent in the water-absorbent resin composition is not less than 10 ppm of the water-absorbent resin, and wherein the total content of nitrilotriacetic acid and its salt in the water-absorbent resin composition is not more than 1 ppm of the water-absorbent resin composition.
摘要翻译： 本发明提供一种含有氨基乙酸螯合剂并且耐尿性优异的吸水性树脂组合物，其中吸水性树脂组合物在耐光性方面进一步优异且变色少且可能具有除臭性。 一种吸水性树脂组合物，其包含吸水性树脂和氨基乙酸螯合剂，其中吸水性树脂组合物中氨基乙酸螯合剂的混合比不小于吸水性树脂的10ppm， 其中吸水性树脂组合物中次氮基三乙酸及其盐的总含量不超过吸水性树脂组合物的1ppm。
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公开(公告)号：US07183456B2
公开(公告)日：2007-02-27
申请号：US10764535
申请日：2004-01-27
申请人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
发明人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
CPC分类号： C08J3/122 , A61L15/60 , C08J3/245 , C08J2300/14 , Y10S524/916 , Y10T428/2982
摘要： In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
摘要翻译： 在吸水性树脂的制造方法中，包括以下步骤：将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂，本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法，结果是良好平衡 具有各种优异性能的吸水性树脂，这种无负载的吸收能力，负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴（C）的混合装置将吸水性树脂（A）和液体材料（B）喷雾共混的步骤，其中液体材料（B）从喷雾 喷嘴（C）及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外，制造方法包括在露点不高于60℃，温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤，其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。
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公开(公告)号：US06720389B2
公开(公告)日：2004-04-13
申请号：US09945812
申请日：2001-09-05
申请人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
发明人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
IPC分类号： C08J324
CPC分类号： C08J3/122 , A61L15/60 , C08J3/245 , C08J2300/14 , Y10S524/916 , Y10T428/2982
摘要： In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
摘要翻译： 在吸水性树脂的制造方法中，包括以下步骤：将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂，本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法，结果是良好平衡 具有各种优异性能的吸水性树脂，这种无负载的吸收能力，负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴（C）的混合装置将吸水性树脂（A）和液体材料（B）喷雾共混的步骤，其中液体材料（B）从喷雾 喷嘴（C）及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外，制造方法包括在露点不高于60℃，温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤，其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。
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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。
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5.发明授权公开(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
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％ 。
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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。
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公开(公告)号：US06964998B2
公开(公告)日：2005-11-15
申请号：US10378498
申请日：2003-03-02
申请人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takuni Hatsuda
发明人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takuni Hatsuda
IPC分类号： A61L15/60 , B01J20/00 , B01J20/26 , B01J20/28 , G01N5/02 , G01N15/08 , C08J3/25 , C08J5/10 , C08J4/04
CPC分类号： C08J3/245 , A61F13/53 , A61F2013/530715 , A61F2013/530729 , A61L15/60 , B01J20/26 , B01J20/261 , B01J20/264 , B01J20/265 , B01J20/267 , B01J20/30 , B01J2220/68 , C08F220/06 , C08F222/1006 , C08F222/385 , G01N5/025 , G01N2015/0866
摘要： The present invention provides: a water-absorbing agent which has excellent urine resistance; a water-absorbing agent which has not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time; and production processes and uses for these water-absorbing agents. The present invention water-absorbing agent exhibits a specific or larger value of absorption capacity under a load in a process in which the absorption capacity under a load is measured in a new manner using a specific liquid to be absorbed, and the present invention provides an absorbent matter and an absorbent article which display a specific or larger value of new absorption index as is, for example, led from the absorption capacity under a load or from the resin concentration using the above water-absorbing agent. The present invention further provides a production process for a water-absorbing agent having the above specific parameter.
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公开(公告)号：US06586549B1
公开(公告)日：2003-07-01
申请号：US09610967
申请日：2000-07-06
申请人： Takumi Hatsuda , Kazuki Kimura , Koji Miyake , Eri Goto , Katsuyuki Wada
发明人： Takumi Hatsuda , Kazuki Kimura , Koji Miyake , Eri Goto , Katsuyuki Wada
IPC分类号： C08J22046
CPC分类号： C08J3/245 , A61L15/60 , C08J3/12 , C08J2300/14 , C08L33/02 , C08L63/00 , C08L2666/14
摘要： The present invention provides: a water-absorbing composition such that portions containing the water-absorbing composition in a high concentration exhibit excessive-liquid permeation buffering effects in absorbent articles comprising the water-absorbing composition and hydrophilic fibers; and a use of this water-absorbing composition. The water-absorbing composition comprises a water-absorbent resin and an excessive-liquid permeation buffer, wherein the water-absorbent resin is a product by a process including the step of further crosslinking the surface vicinity of a crosslinked polymer, and this water-absorbing composition is characterized by having a liquid permeation buffering index of not less than 0.4 and exhibiting an absorption capacity of not less than 25 g/g in absorbent structures under load, and further having an average particle diameter in the range of 200˜600 &mgr;m, wherein the ratio of particles having particle diameters smaller than 106 &mgr;m in the water-absorbing composition is not more than 5 weight %. This water-absorbing composition is, for example, used for the absorbent articles comprising the water-absorbing composition and the hydrophilic fibers.
摘要翻译： 本发明提供一种吸水性组合物，使得含有高浓度吸水性组合物的部分在含有吸水性组合物和亲水性纤维的吸收性物品中表现出过度的液体渗透缓冲效果; 以及这种吸水组合物的用途。 吸水性组合物包含吸水性树脂和过量液体渗透缓冲液，其中吸水性树脂是通过包括进一步交联交联聚合物表面附近的步骤的方法的产物，并且该吸水性树脂 其组成的特征在于在负载下的吸收结构体中的液体渗透缓冲指数为0.4以上，吸收能力为25g / g以上，平均粒径在200〜600μm的范围内， 其中，吸水性组合物中粒径小于106μm的粒子的比例为5重量％以下。 该吸水性组合物例如用于包含吸水性组合物和亲水性纤维的吸收性物品。
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公开(公告)号：US20050272600A1
公开(公告)日：2005-12-08
申请号：US11177725
申请日：2005-07-09
申请人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
发明人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
CPC分类号： C08J3/245 , A61F13/53 , A61F2013/530715 , A61F2013/530729 , A61L15/60 , B01J20/26 , B01J20/261 , B01J20/264 , B01J20/265 , B01J20/267 , B01J20/30 , B01J2220/68 , C08F220/06 , C08F222/1006 , C08F222/385 , G01N5/025 , G01N2015/0866
摘要： The present invention provides: a water-absorbing agent which has excellent urine resistance; a water-absorbing agent which has not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time; and production processes and uses for these water-absorbing agents. The present invention water-absorbing agent exhibits a specific or larger value of absorption capacity under a load in a process in which the absorption capacity under a load is measured in a new manner using a specific liquid to be absorbed, and the present invention provides an absorbent matter and an absorbent article which display a specific or larger value of new absorption index as is, for example, led from the absorption capacity under a load or from the resin concentration using the above water-absorbing agent. The present invention further provides a production process for a water-absorbing agent having the above specific parameter.
摘要翻译： 本发明提供一种耐尿性优异的吸水剂， 吸水剂不仅具有优异的耐尿性，而且具有优异的吸收性能，对于任何尿组合物都是稳定的，随时间变化不大; 以及这些吸水剂的生产方法和用途。 本发明的吸水剂在使用特定待吸收液体的新方式测定负荷下的吸收容量的工序中，在负荷下具有特定的或较大的吸收容量值，本发明提供一种 吸收性物质和吸收性物品，其具有特定或更大的新吸收指数值，例如由负载下的吸收能力或使用上述吸水剂的树脂浓度引起。 本发明还提供了具有上述特定参数的吸水剂的制造方法。
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公开(公告)号：US06599989B2
公开(公告)日：2003-07-29
申请号：US09255433
申请日：1999-02-22
申请人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
发明人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
IPC分类号： C08J324
CPC分类号： C08J3/245 , A61F13/53 , A61F2013/530715 , A61F2013/530729 , A61L15/60 , B01J20/26 , B01J20/261 , B01J20/264 , B01J20/265 , B01J20/267 , B01J20/30 , B01J2220/68 , C08F220/06 , C08F222/1006 , C08F222/385 , G01N5/025 , G01N2015/0866
摘要： Water-absorbing agents containing polycarboxylic amine chelating agents. The water-absorbing agents are obtained by a process including the step of adding to a water-absorbent resin at least one chelating agent selected from the group consisting of polycarboxylic amines and maleic hydrophilic polymers. The polycarboxylic amine may be selected from a class that includes N-carboxymethyl-aspartic acid as one of its members or selected from a class that includes N,N′-bis(1,2-dicarboxyethyl)-ethylenediamine as one of its members. The water-absorbing agents have not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time.
摘要翻译： 含有多羧酸胺螯合剂的吸水剂。 吸水剂通过包括向吸水性树脂中加入选自多元羧酸胺和马来酸亲水性聚合物中的至少一种螯合剂的方法获得。 多羧酸胺可以选自包括N-羧甲基 - 天冬氨酸作为其成员之一或选自包括N，N'-双（1,2-二羧基乙基） - 乙二胺作为其成员之一的类别。 吸水剂不仅具有优异的耐尿性，而且具有优异的吸收性能，对于任何尿组合物都是稳定的，随时间变化不大。
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