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1. 发明授权

US06586549B1 Water-absorbing composition and its use 有权
标题翻译：吸水组合物及其用途
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。

2. 发明授权

US07183456B2 Water-absorbent resin and production process therefor 有权
标题翻译：吸水树脂及其生产工艺
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
IPC分类号： A61F13/15 , B32B5/16 , C08F8/00
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。

3. 发明授权

US06720389B2 Water-absorbent resin and production process therefor 有权
标题翻译：吸水树脂及其生产工艺
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。

4. 发明授权

US07420018B2 Water-absorbing agent production process with surface crosslinking and ion blocking 有权
标题翻译：吸水剂生产工艺具有表面交联和离子封闭
公开(公告)号：US07420018B2
公开(公告)日：2008-09-02
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
IPC分类号： C08J3/12 , C08J3/24 , C08F120/06 , B01J8/00 , B01J20/26 , B01J20/32 , A61L15/64
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。

5. 发明申请

US20050272600A1 Water-absorbing agent and its production process and use 有权
标题翻译：吸水剂及其生产工艺和用途
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
IPC分类号： A61L15/60 , B01J20/00 , B01J20/26 , B01J20/28 , G01N5/02 , G01N15/08
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。

6. 发明授权

US06599989B2 Water-absorbent agents containing polycarboxylic amine chelating agents 有权
标题翻译：含有多羧酸胺螯合剂的吸水剂
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。

7. 发明授权

US09180220B2 Water absorbing agent, water absorbent core using the agent, and manufacturing method for water absorbing agent 有权
标题翻译：吸水剂，使用该吸水剂的吸水芯，以及吸水剂的制造方法
公开(公告)号：US09180220B2
公开(公告)日：2015-11-10
申请号：US13467236
申请日：2012-05-09
申请人： Kazushi Torii , Hirofumi Shibata , Kazuki Kimura , Yasuhisa Nakashima , Motohiro Imura , Hiroko Ueda , Katsuyuki Wada
发明人： Kazushi Torii , Hirofumi Shibata , Kazuki Kimura , Yasuhisa Nakashima , Motohiro Imura , Hiroko Ueda , Katsuyuki Wada
IPC分类号： C08G63/91 , C08F20/00 , B01J20/10 , B01J20/22 , B01J20/28 , B01J20/32 , A61L15/60 , A61L15/18 , B01J20/26 , C08L101/14
CPC分类号： A61L15/60 , A61L15/18 , B01J20/103 , B01J20/26 , B01J20/261 , B01J20/267 , B01J2220/46 , B01J2220/68 , C08K3/36 , C08L101/14 , Y10T428/253
摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.
摘要翻译：本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。该试剂满足条件（a）至（d）：（a）该试剂含有量为10ppm至1,900ppm的水不溶性无机颗粒; （b）该试剂含有5质量％以下的粒径，使其能够通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

8. 发明授权

US08487048B2 Water-absorbent resin and its production process 有权
标题翻译：吸水树脂及其生产工艺
公开(公告)号：US08487048B2
公开(公告)日：2013-07-16
申请号：US10555707
申请日：2004-05-07
申请人： Katsuyuki Wada , Masatoshi Nakamura , Kazuki Kimura , Kunihiko Ishizaki
发明人： Katsuyuki Wada , Masatoshi Nakamura , Kazuki Kimura , Kunihiko Ishizaki
IPC分类号： C08F8/00 , C08F8/14 , C08F8/32 , A61F13/53
CPC分类号： C08J3/243 , A61L15/60 , C08F8/00 , C08F2800/20 , C08F2810/20 , C08J3/245 , C08J2300/14 , Y10T428/254 , C08L33/02 , C08F220/04
摘要： Objects of the present invention are: to provide a water-absorbent resin which exhibits excellent balances between water absorption performances; and further to provide a process by which a water-absorbent resin having excellent absorption properties can be produced even if no hydrophilic organic solvent is used, or even if its amount is extremely reduced, when carrying out the surface-crosslinking treatment; and further to provide a water-absorbent resin optimum to absorbent articles such as diapers. As a means of achieving these objects, the process according to the present invention for production of the water-absorbent resin comprises: a step (1) of polymerizing a monomer component including an acid-group-containing unsaturated monomer as an essential component to thereby obtain a hydrogel polymer; a step (2) of drying and pulverizing the hydrogel polymer to thereby obtain a water-absorbent resin powder; a step (3) of adding a surface-crosslink-treating agent to the water-absorbent resin powder, wherein the surface-crosslink-treating agent includes a surface-crosslinking agent and water as essential components and has a hydrophilic organic solvent content of 0 to 10 mass % relative to the surface-crosslink-treating agent; and a step (4) of heating the resultant mixture to thereby carry out surface-crosslinking treatment; wherein a time of from the end of the step (3) till the beginning of the step (4) is within 5 minutes.
摘要翻译：本发明的目的是提供吸水性能优异的平衡性的吸水性树脂; 进一步提供一种在进行表面交联处理时即使不使用亲水性有机溶剂也可以产生吸水性优异的吸水性树脂，或者即使其量极少地减少的方法; 并且进一步提供对吸收制品如尿布最佳的吸水性树脂。作为实现这些目的的手段，本发明的制造吸水性树脂的方法包括：使包含含酸基的不饱和单体作为必要成分的单体成分聚合的工序（1）获得水凝胶聚合物; 干燥粉碎水凝胶聚合物从而获得吸水性树脂粉末的步骤（2）; 将表面交联处理剂添加到吸水性树脂粉末中的步骤（3），其中表面交联处理剂包括表面交联剂和水作为必要组分，并且亲水性有机溶剂含量为0 相对于表面交联处理剂为10质量％和加热所得混合物从而进行表面交联处理的步骤（4）; 其中从步骤（3）的结束到步骤（4）的开始的时间在5分钟内。

9. 发明申请

US20090298685A1 WATER ABSORBING AGENT, WATER ABSORBENT CORE USING THE AGENT, AND MANUFACTURING METHOD FOR WATER ABSORBING AGENT 有权
标题翻译：吸水剂，使用该水剂的吸水芯，以及吸水剂的制造方法
公开(公告)号：US20090298685A1
公开(公告)日：2009-12-03
申请号：US12294328
申请日：2007-03-20
申请人： Kazushi Torii , Hirofumi Shibata , Kazuki Kimura , Yasuhisa Nakashima , Motohiro Imura , Hiroko Ueda , Katsuyuki Wada
发明人： Kazushi Torii , Hirofumi Shibata , Kazuki Kimura , Yasuhisa Nakashima , Motohiro Imura , Hiroko Ueda , Katsuyuki Wada
IPC分类号： B01J20/26
CPC分类号： A61L15/60 , A61L15/18 , B01J20/103 , B01J20/26 , B01J20/261 , B01J20/267 , B01J2220/46 , B01J2220/68 , C08K3/36 , C08L101/14 , Y10T428/253
摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.
摘要翻译：本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。该试剂满足条件（a）至（d）：（a）该试剂含有10ppm至1,900ppm含量的水不溶性无机颗粒; （b）该试剂含有5质量％以下的颗粒，其尺寸可以通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

10. 发明申请

US20070066167A1 Particulate water absorbing agent with water-absorbing resin as main component 审中-公开
标题翻译：颗粒吸水剂以吸水树脂为主要成分
公开(公告)号：US20070066167A1
公开(公告)日：2007-03-22
申请号：US10570965
申请日：2005-03-29
申请人： Katsuyuki Wada , Kazuki Kimura , Hiroko Ueda , Teruyuki Kanto , Hirotama Fujimaru
发明人： Katsuyuki Wada , Kazuki Kimura , Hiroko Ueda , Teruyuki Kanto , Hirotama Fujimaru
IPC分类号： B32B5/02
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 water absorbing agent which maintains excellent water absorbing properties for a long time, even when urine composition of human urine varies depending. A particulate water absorbing agent comprising a water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer, which exhibits Centrifuge retention capacity in a physiological saline solution of not lower than 32 g/g, mass median particle size (D50) of 200 to 400 μm, ratio of particles with diameter of smaller than 150 μm of 0 to 2% by weight, and increased extractables by deterioration of 0 to 15% by weight and extractables for one hour in deterioration test liquid of 0.1 to 30% by weight.
摘要翻译：本发明提供一种长时间保持优异的吸水性的吸水剂，即使在尿液的尿组成变化的情况下也是如此。一种颗粒状吸水剂，其特征在于，含有通过使不饱和单体交联聚合而获得的吸水性树脂，其在生理盐水溶液中的离心保持容量不低于32g / g，质量中值粒径（D50）为200〜400 妈妈，直径小于150μm的粒子的比例为0〜2重量％，通过劣化0〜15重量％的提高物，0.1〜30重量％的劣化试验液中的提取物1小时。

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