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1. 发明授权

US06297319B1 Water-absorbing agent and production process therefor 有权
标题翻译：吸水剂及其生产工艺
公开(公告)号：US06297319B1
公开(公告)日：2001-10-02
申请号：US09432018
申请日：1999-11-02
申请人： Kinya Nagasuna , Shinichi Fujino , Masatoshi Nakamura , Kunihiko Ishizaki
发明人： Kinya Nagasuna , Shinichi Fujino , Masatoshi Nakamura , Kunihiko Ishizaki
IPC分类号： C08F800
CPC分类号： C08L101/00 , A61L15/60 , C08F8/30 , C08L101/14 , C08L2666/20 , C08L2666/14
摘要： The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption capacities under no load and under a load and further in the blocking ratio under a load, and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as sanitary materials; and such a water-absorbing agent. The water-absorbent resin is mixed and treated with an oxazoline compound, wherein the oxazoline compound has at least three structural units of general formula (1) below: wherein R1˜R4 separately denote a hydrogen atom, an alkyl group, an aromatic group, a halogen group, a substituted alkyl group, or a substituted aromatic group.
摘要翻译：本发明提供一种通过使用高安全性的交联剂制造吸水剂的方法，其中吸水剂在空载和负载下的吸收容量优异，即使吸水性树脂用于卫生材料等材料，即使吸水性树脂（树脂浓度）的重量百分比高，也能显示优异的吸收性能; 和这种吸水剂。吸水性树脂混合并用恶唑啉化合物处理，其中恶唑啉化合物具有至少三个下列通式（1）的结构单元：其中R1〜R4分别表示氢原子，烷基，芳基，卤素基，取代的烷基或取代的芳基。

2. 发明授权

US06265488B1 Production process for water-absorbing agent 有权
标题翻译：吸水剂生产工艺
公开(公告)号：US06265488B1
公开(公告)日：2001-07-24
申请号：US09253858
申请日：1999-02-21
申请人： Shinichi Fujino , Masatoshi Nakamura , Kinya Nagasuna
发明人： Shinichi Fujino , Masatoshi Nakamura , Kinya Nagasuna
IPC分类号： C08L3302
CPC分类号： B01J20/267 , C08F8/00 , C08F2810/20 , C08F220/06
摘要： The invention provides a process for producing a water-absorbing agent by using a crosslinking agent of high molecular weight, wherein the water-absorbing agent is excellent with good balance in respect to the absorption capacities under no load and under a heavy load and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as hygienic products. In a production process for a water-absorbing agent comprising the steps of mixing a water-absorbent resin with a crosslinking agent and heating the resultant mixture wherein the water-absorbent resin has a carboxyl group; the invention is characterized in that the crosslinking agent has a group reactable upon the carboxyl group, an average molecular weight of 500 or more, and a repeating structural unit of general formula (1) below: —[(CH2CH2O)m—CH2—CH(OH)CH2—O]— (1) wherein m is an integer of 1 to 10.
摘要翻译：本发明提供了一种通过使用高分子量交联剂制备吸水剂的方法，其中吸水剂在空载和重载下的吸收容量方面具有优异的平衡性，并能显示出即使吸水性树脂用于卫生产品等材料，即使吸水性树脂（树脂浓度）的重量百分比较高，吸收性也优异。在吸水剂的制造方法中，包括以下步骤：将吸水性树脂与交联剂混合，加热所得到的混合物，其中吸水性树脂具有羧基; 本发明的特征在于交联剂具有可在羧基上反应的基团，平均分子量为500以上的基团和下述通式（1）的重复结构单元：其中m为1〜10的整数。

3. 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。

4. 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。

5. 发明授权

US08802800B2 Production method for water-absorbent resin 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：US08802800B2
公开(公告)日：2014-08-12
申请号：US13392698
申请日：2010-08-30
申请人： Shinichi Fujino , Kozo Nogi , Kunihiko Ishizaki
发明人： Shinichi Fujino , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F2/00 , C08F20/06
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： A production method for a water-absorbent resin, comprising a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction, and a drying step for drying the hydrogel, wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine, the pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and the area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.
摘要翻译：一种吸水性树脂的制造方法，其特征在于，包括通过使单体水溶液进行聚合反应而得到水凝胶的聚合工序和干燥水凝胶的干燥工序，干燥工序中的干燥是使用连续通孔流式带式干燥机，连续通流式带式干燥机中通流带的开孔率为20〜50％，供给干燥工序的水凝胶的固体成分为35重量％以上，相对于贯流带，水凝胶的面积占有率为85〜100％。

6. 发明申请

US20130123435A1 METHOD OF PRODUCING ABSORBENT RESIN 有权
标题翻译：生产吸收树脂的方法
公开(公告)号：US20130123435A1
公开(公告)日：2013-05-16
申请号：US13635045
申请日：2011-03-17
申请人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
发明人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
IPC分类号： C08J3/24
CPC分类号： C08F120/06 , B07B1/28 , B07B1/54 , B07B1/56 , B07B13/16 , C08F6/008 , C08F220/06 , C08J3/24 , C08J3/245 , C08J2300/14 , G01N15/0272 , G01N2015/0277 , G01N2015/0288
摘要： Provided is a method which does not require alteration of the raw materials or high capital investment, and improves and stabilizes the physical property (for example, liquid permeability) of a water absorbent resin by means of a simple technique. A method for producing a water absorbent resin is disclosed, which method includes a polymerization step of polymerizing an aqueous solution of acrylic acid (salt) to obtain a water-containing gel-like crosslinked polymer; a drying step of drying the water-containing gel-like crosslinked polymer to obtain a water absorbent resin powder; a classification step of classifying the water absorbent resin powder; and a surface crosslinking step of surface crosslinking the water absorbent resin powder, wherein in the classification steps that are carried before the surface crosslinking step and/or after the surface crosslinking step, the stretch tension (tension) of the metal sieve mesh used in the classification step is from 35 [N/cm] to 100 [N/cm].
摘要翻译：提供了不需要改变原材料或高资本投资的方法，并且通过简单的技术提高和稳定吸水性树脂的物理性能（例如，透液性）。公开了一种吸水性树脂的制造方法，该方法包括聚合丙烯酸（盐）水溶液以获得含水凝胶状交联聚合物的聚合步骤; 干燥步骤，干燥含水凝胶状交联聚合物以获得吸水性树脂粉末; 吸水性树脂粉末的分类步骤; 和表面交联吸水性树脂粉末的表面交联步骤，其中在表面交联步骤之前和/或表面交联步骤之后承载的分级步骤中，所用的金属筛网的拉伸张力（张力）分级步骤为35 [N / cm]至100 [N / cm]。

7. 发明申请

US20120157648A1 PRODUCTION METHOD FOR WATER-ABSORBENT RESIN 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：US20120157648A1
公开(公告)日：2012-06-21
申请号：US13392909
申请日：2010-08-30
申请人： Koji Matsumoto , Kozo Nogi , Shinichi Fujino , Yorimichi Dairoku , Kunihiko Ishizaki
发明人： Koji Matsumoto , Kozo Nogi , Shinichi Fujino , Yorimichi Dairoku , Kunihiko Ishizaki
IPC分类号： C08F220/06
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： [PROBLEM]It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property.[SOLUTION]A production method for a water-absorbent resin, comprising: a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction; and a drying step for drying the hydrogel; wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine; solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: [MATH. 1] Thickness variation rate (1)=(Maximum thickness of hydrogel in a width direction of the through-flow belt)/(Average thickness of hydrogel in a width direction of the through-flow belt). [EXPRESSION 1]
摘要翻译：本发明的目的在于有效地获得具有优异性能的吸水性树脂。 [解决方案]一种吸水性树脂的制备方法，包括：通过使单体水溶液进行聚合反应获得水凝胶的聚合步骤; 和干燥步骤，用于干燥水凝胶; 其中干燥步骤中的干燥是使用连续的通流式带式干燥机进行的; 提供给干燥步骤的水凝胶的固体含量为35重量％以上，并且由连续贯流带中的贯流带上的水凝胶的以下表达式1表示的厚度变化率（1）为1.05 到5：[MATH。 1]厚度变化率（1）=（贯穿流动带的宽度方向的水凝胶的最大厚度）/（贯通带的宽度方向的水凝胶的平均厚度）。 [表达1]

8. 发明申请

US20110034603A1 Polyacrylic acid (salt)-based water-absorbent resin and method for producing same 审中-公开
标题翻译：聚丙烯酸（盐）系吸水性树脂及其制造方法
公开(公告)号：US20110034603A1
公开(公告)日：2011-02-10
申请号：US12936823
申请日：2009-04-24
申请人： Shinichi Fujino , Eri Nagasawa , Kunihiko Ishizaki , Hiroto Kasuga
发明人： Shinichi Fujino , Eri Nagasawa , Kunihiko Ishizaki , Hiroto Kasuga
IPC分类号： C08L33/02 , C08F220/06 , C08K5/09
CPC分类号： C08F6/008 , A61F2013/530481 , A61L15/22 , A61L15/60 , C08F6/10 , C08F220/06 , C08J3/126 , C08J3/128 , C08J3/245 , C08J2333/02 , C08L33/02
摘要： In order to realize, while preventing gelatification of a monomer not yet to be polymerized, a water-absorbent resin which is more stable in color over time and has a significant enhancement in a problem concerning surface color and an excellent absorption property, a method for producing a polyacrylic acid-based water-absorbent resin includes: a preparation step in which a monomer is prepared from acrylic acid including hydroxyacetone in an amount not larger than 300 mass ppm; a polymerization step in which the monomer is polymerized so that a hydrogel is obtained; and a drying step in which the hydrogel is dried. Also, a method of the present invention for producing polyacrylic acid-based water-absorbent resin includes: a preparation step in which a monomer is prepared from acrylic acid; a polymerization step in which the monomer is polymerized in presence of phenol so that a hydrogel is obtained; and a drying step in which the hydrogel is dried.
摘要翻译：为了在防止尚未聚合的单体的凝胶化的同时，实现随着时间的推移，颜色更稳定并且显着提高了表面颜色和吸收性优异的问题的吸水性树脂，制备聚丙烯酸类吸水性树脂包括：制备步骤，其中单体由不大于300质量ppm的羟基丙酮的丙烯酸制备; 聚合步骤，其中单体聚合以获得水凝胶; 和干燥步骤，其中水凝胶被干燥。此外，本发明的聚丙烯酸类吸水性树脂的制造方法还包括：由丙烯酸制备单体的制备工序; 聚合步骤，其中单体在苯酚存在下聚合以获得水凝胶; 和干燥步骤，其中水凝胶被干燥。

9. 发明申请

US20060229370A1 Water-absorbent resin, hydropolymer, process for producing them, and uses of them 有权
公开(公告)号：US20060229370A1
公开(公告)日：2006-10-12
申请号：US11452223
申请日：2006-06-14
申请人： Yorimichi Dairoku , Yoshio Irie , Shinichi Fujino , Yasuhiro Fujita , Takashi Azumi , Kunihiko Ishizaki
发明人： Yorimichi Dairoku , Yoshio Irie , Shinichi Fujino , Yasuhiro Fujita , Takashi Azumi , Kunihiko Ishizaki
IPC分类号： C08J9/00
CPC分类号： C08F220/06 , A61L15/24 , C08F2/001 , C08F2/01 , C08F2/10 , C08F20/06 , C08F222/1006 , C08L33/02
摘要： The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.

10. 发明授权

US07091253B2 Water-absorbent resin, hydropolymer, process for producing them, and uses of them 有权
公开(公告)号：US07091253B2
公开(公告)日：2006-08-15
申请号：US10942851
申请日：2004-09-17
申请人： Yorimichi Dairoku , Yoshio Irie , Shinichi Fujino , Yasuhiro Fujita , Takashi Azumi , Kunihiko Ishizaki
发明人： Yorimichi Dairoku , Yoshio Irie , Shinichi Fujino , Yasuhiro Fujita , Takashi Azumi , Kunihiko Ishizaki
IPC分类号： C08J9/00
CPC分类号： C08F220/06 , A61L15/24 , C08F2/001 , C08F2/01 , C08F2/10 , C08F20/06 , C08F222/1006 , C08L33/02
摘要： The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.

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