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1. 发明授权

US08546492B2 Surface treatment method for water-absorbing resin and production method for water-absorbing resin 有权
标题翻译：吸水树脂的表面处理方法和吸水性树脂的制造方法
公开(公告)号：US08546492B2
公开(公告)日：2013-10-01
申请号：US12937056
申请日：2009-04-10
申请人： Atsushi Motoyama , Seiji Kato , Makoto Matsumoto , Takaaki Kawano , Yoshio Irie
发明人： Atsushi Motoyama , Seiji Kato , Makoto Matsumoto , Takaaki Kawano , Yoshio Irie
IPC分类号： C08J3/24 , C08L33/02 , C08F20/06
CPC分类号： C08J3/128 , C08F220/06 , C08J3/24 , C08J2300/14 , C08J2333/02 , C08L33/02 , C08F222/1006
摘要： The present invention provides a surface treatment method for a water-absorbing resin comprising three steps of: 1) a humidifying and mixing step for mixing a base polymer and a surface cross-linking agent solution to obtain a “humidified substance”; 2) a pretreatment step for raising temperature of said humidified substance to obtain a “pretreated substance”; and 3) a surface cross-linking reaction step for cross-linking said pretreated substance to obtain a surface cross-linked “water-absorbing resin”; wherein dew point in the pretreatment step of the above 2) is from 50° C. to 95° C., and temperature of said humidified substance is raised from temperature below the dew point up to a temperature of 10° C. higher than the dew point.
摘要翻译：本发明提供一种吸水性树脂的表面处理方法，包括以下三个步骤：1）加湿混合步骤，用于混合基础聚合物和表面交联剂溶液以获得“加湿物质”; 2）用于升高所述加湿物质的温度以获得“预处理物质”的预处理步骤; 和3）用于交联所述预处理物质以获得表面交联的“吸水树脂”的表面交联反应步骤; 其中上述2）的预处理步骤中的露点为50℃至95℃，并且所述加湿物质的温度从低于露点的温度升高至高于10℃的温度露点

2. 发明授权

US08497226B2 Water absorbent and producing method of same 有权
标题翻译：吸水剂及其制备方法
公开(公告)号：US08497226B2
公开(公告)日：2013-07-30
申请号：US12805685
申请日：2010-08-13
申请人： Kazushi Torii , Hirofumi Shibata , Taku Iwamura , Yoshio Irie , Yorimichi Dairoku , Yoshiro Mitsukami , Sayaka Machida
发明人： Kazushi Torii , Hirofumi Shibata , Taku Iwamura , Yoshio Irie , Yorimichi Dairoku , Yoshiro Mitsukami , Sayaka Machida
IPC分类号： B01J20/26 , C08F20/06
CPC分类号： C08J3/245 , A61L15/60 , B01J20/261 , B01J2220/68 , C08F20/06 , C08J2333/00
摘要： An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.
摘要翻译：本发明的目的是提供一种具有优异凝胶性能的吸水剂，并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。此外，本发明的另一个目的是提供一种安全且透液性优异的吸水剂，其中用于提高液体渗透性的液体渗透性改进剂的量减少。吸水剂由具有高交联度，高液体保持性和高凝胶强度（凝胶层的溶胀压力为35kDyne / cm2）的特定聚合方法制成的吸水性树脂或者更多）。该吸水剂被进一步处理以具有特定的粒度分布（其颗粒的95重量％以上小于850微米但不小于106微米，对数标准偏差（fDfÄ）在0.25至0.45的范围内），然后表面交联。之后，加入液体渗透性改进剂。

3. 发明申请

US20110313113A1 Polyacrylic water-absorbent resin powder and method for producing the same 有权
标题翻译：聚丙烯酸吸水性树脂粉末及其制造方法
公开(公告)号：US20110313113A1
公开(公告)日：2011-12-22
申请号：US13201701
申请日：2010-02-17
申请人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
发明人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F222/20 , C08F2/34 , C08F2/04 , C08F8/00
CPC分类号： C08C19/00 , C08F2/10 , C08F2/16 , C08F2/34 , C08F8/00 , C08F20/10 , C08F220/06 , C08F222/20
摘要： A production method of the present invention is a polyacrylic water-absorbent resin powder production method including the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the acrylic monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after the step of polymerizing, fragmenting a hydrated gel crosslinked polymer obtained by polymerizing the acrylic monomer solution; and drying by heat the hydrated gel crosslinked polymer thus fragmented, the gas being dissolved and/or dispersed in the acrylic monomer solution by at least one of the methods (a) to (c): (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; and (c) introducing the gas with the acrylic monomer solution via fine holes. Accordingly, the production method of the present invention makes it possible to efficiently produce a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like.
摘要翻译：本发明的制造方法是聚丙烯酸类吸水性树脂粉末的制造方法，其特征在于，包括以下工序：制造溶解和/或分散有气体的丙烯酸类单体溶液; 在不存在表面活性剂的情况下或在不超过300ppm的表面活性剂的存在下聚合丙烯酸类单体溶液; 在通过聚合丙烯酸类单体溶液获得的水合凝胶交联聚合物聚合步骤期间或之后，并通过加热干燥由此分解的水合凝胶交联聚合物，气体通过方法（a）至（c）中的至少一种溶解和/或分散在丙烯酸单体溶液中：（a）向丙烯酸单体溶液施加压力和气体; （b）产生丙烯酸单体溶液和气体的旋流; 和（c）通过细孔将丙烯酸单体溶液引入气体。因此，本发明的制造方法能够有效地制造吸水率优异的吸水性树脂，而不会降低卫生用品等的吸液性。

4. 发明申请

US20100308263A1 WATER ABSORBENT AND PRODUCING METHOD OF SAME 有权
标题翻译：吸水及其生产方法
公开(公告)号：US20100308263A1
公开(公告)日：2010-12-09
申请号：US12805685
申请日：2010-08-13
申请人： Kazushi Torii , Hirofumi Shibata , Taku Iwamura , Yoshio Irie , Yorimichi Dairoku , Yoshiro Mitsukami , Sayaka Machida
发明人： Kazushi Torii , Hirofumi Shibata , Taku Iwamura , Yoshio Irie , Yorimichi Dairoku , Yoshiro Mitsukami , Sayaka Machida
IPC分类号： B01J20/26 , C08F120/06
CPC分类号： C08J3/245 , A61L15/60 , B01J20/261 , B01J2220/68 , C08F20/06 , C08J2333/00
摘要： An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.
摘要翻译：本发明的目的是提供一种具有优异凝胶性能的吸水剂，并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。此外，本发明的另一个目的是提供一种安全且透液性优异的吸水剂，其中用于提高液体渗透性的液体渗透性改进剂的量减少。吸水剂由具有高交联度，高液体保持性和高凝胶强度（凝胶层的溶胀压力为35kDyne / cm2）的特定聚合方法制成的吸水性树脂或者更多）。该吸水剂被进一步处理以具有特定的粒度分布（其颗粒的95重量％或更多小于850度，但不小于106度，对数标准偏差（ƒðƒÄ）在0.25至0.45的范围内），然后表面交联。之后，加入液体渗透性改进剂。

5. 发明授权

US07741400B2 Water-absorbent resin, hydropolymer, process for producing them, and uses of them 有权
公开(公告)号：US07741400B2
公开(公告)日：2010-06-22
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： C08K5/20
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 %.

6. 发明授权

US07582705B2 Particulate water absorbent agent and production method thereof, and water absorbent article 有权
标题翻译：颗粒状吸水剂及其制造方法和吸水性物品
公开(公告)号：US07582705B2
公开(公告)日：2009-09-01
申请号：US12078802
申请日：2008-04-04
申请人： Yorimichi Dairoku , Yoshifumi Adachi , Kozo Nogi , Hiroki Inoue , Katsuyuki Wada , Yoshio Irie
发明人： Yorimichi Dairoku , Yoshifumi Adachi , Kozo Nogi , Hiroki Inoue , Katsuyuki Wada , Yoshio Irie
IPC分类号： C08F8/32
CPC分类号： C08J3/243 , A61L15/60 , B01J20/26 , B01J20/267 , B01J2220/68 , C08J2300/102
摘要： A particulate water absorbing agent of the present invention includes a water absorbent resin, having a cross-linking structure, whose surface has been cross-linked by adding a surface treatment agent, wherein: (i) a mass average particle diameter (D50) ranges from 200 to 600 μm and 95 to 100 wt % of a particulate water absorbing agent whose particle diameter ranges from less than 850 μm to not less than 150 μm is contained with respect to 100 wt % of whole the particulate water absorbing agent, and (ii) a logarithmic standard deviation (σζ) of particle size distribution ranges from 0.25 to 0.45, and (iii) a compressibility rate defined by a following equation ranges from 0 to 18%, and (iv) a surface tension of a supernatant liquid obtained in 4 minutes after dispersing 0.5 g of the particulate water absorbing agent in 50 ml of physiological saline whose temperature is 20° C. is 55 mN/m or more, the compressibility rate (%)=(P−A)/P ×100 where P represents a tapped bulk density of the particulate water absorbing agent and A represents a loose bulk density of the particulate water absorbing agent.
摘要翻译：本发明的颗粒状吸水剂包括具有交联结构的吸水性树脂，其表面通过添加表面处理剂进行交联，其中：（i）质量平均粒径（D50）范围相对于全部颗粒状吸水剂的100重量％，含有200〜600μm，95〜100wt％粒径范围在850μm〜150μm以下的颗粒状吸水剂，（ ii）粒度分布的对数标准偏差（sigmazeta）范围为0.25〜0.45，（iii）由下式表示的压缩率为0〜18％，（iv）得到的上清液的表面张力在将0.5g颗粒状吸水剂分散在温度为20℃的50ml生理盐水中的4分钟内，在＆lt;＆lt;直线式说明书=“在线式”末端 =“铅”？>压缩性 y率（％）=（PA）/ P x100 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中P表示颗粒状吸水剂的抽头堆积密度，A表示颗粒状吸水剂的松散堆积密度。

7. 发明授权

US07265190B2 Process and apparatus for production of water-absorbent resin 有权
标题翻译：吸水树脂生产工艺和设备
公开(公告)号：US07265190B2
公开(公告)日：2007-09-04
申请号：US10691586
申请日：2003-10-24
申请人： Yorimichi Dairoku , Yasuhiro Fujita , Shinichi Fujino , Hirofumi Shibata , Kenji Tada , Yoshio Irie
发明人： Yorimichi Dairoku , Yasuhiro Fujita , Shinichi Fujino , Hirofumi Shibata , Kenji Tada , Yoshio Irie
IPC分类号： C08F2/04 , C08F2/32 , C08F20/06
CPC分类号： C08F2/01 , B01J14/00 , B01J19/24 , C08F220/06 , C08F222/1006 , Y10S526/918
摘要： There is disclosed a process to uniformly and rapidly carry out the mixing of a monomer liquid and a polymerization initiator and thus for the resulting polymer not to adhere to the inner surface of the piping or the inside of the apparatus in an art of producing a water-absorbent resin by continuously mixing the monomer liquid and the polymerization initiator together and thereby carrying out polymerization. This process comprises the steps of: (a) continuously supplying a monomer liquid 20 to such as a supply pipe 10 to continuously stir the monomer liquid 20 in the supply pipe 10 with such as a stirring apparatus 12; (b) causing a polymerization initiator 30 to join into a flow of the monomer liquid 20 being in a stirred state, thereby obtaining a mixed liquid 40 of the monomer liquid 20 and the polymerization initiator 30; and (c) continuously supplying the mixed liquid 40 from the supply pipe line 10 to a polymerization apparatus to cause the mixed liquid 40 to run a polymerization reaction.
摘要翻译：公开了一种均匀且快速地进行单体液体和聚合引发剂的混合的方法，因此在生产水的技术中所得聚合物不粘附到管道或设备内部的内表面通过将单体液体和聚合引发剂连续混合在一起，从而进行聚合。该方法包括以下步骤：（a）将单体液体20连续地供给到供给管10，以通过搅拌装置12连续地搅拌供给管10中的单体液20; （b）使聚合引发剂30接合到处于搅拌状态的单体液体20的流动中，从而得到单体液20和聚合引发剂30的混合液40; 和（c）将混合液40从供给管线10连续供给聚合装置，使混合液40进行聚合反应。

8. 发明申请

US20070149760A1 Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin 有权
标题翻译：表面交联吸水树脂的方法和吸水树脂的制造方法
公开(公告)号：US20070149760A1
公开(公告)日：2007-06-28
申请号：US11641885
申请日：2006-12-20
申请人： Kenji Kadonaga , Yorimichi Dairoku , Shin-ichi Fujino , Hiroko Okochi , Yoshio Irie , Hideyuki Tahara
发明人： Kenji Kadonaga , Yorimichi Dairoku , Shin-ichi Fujino , Hiroko Okochi , Yoshio Irie , Hideyuki Tahara
IPC分类号： C08F6/00
CPC分类号： B01J8/10 , B01F7/0045 , B01F7/00466 , B01F7/10 , B01J2208/00212 , B01J2208/00867 , B01J2219/182 , C08J3/245 , Y10S524/916
摘要： A method for surface crosslinking water-absorbing resin of the present invention includes a step (1) of obtaining a wet mixture, a step (2) of obtaining a dried particulate composition, and a step (3) of carrying out a surface crosslinking reaction. With this, since a processing time of each step becomes short, it is possible to mass produce the water-absorbing resin having excellent physical properties. Moreover, a method for manufacturing the water-absorbing resin of the present invention includes a modifying step and a cooling step. The modifying step and/or the cooling step are/is carried out by using stirring means including a rotation axis having a plurality of stirring boards, and the stirring means includes the stirring board having a specific thickness and/or a scraping blade having a specific shape. With this, it is possible to suppress the generation of the fine powder in the modifying step and/or the cooling step.
摘要翻译：本发明的表面交联吸水性树脂的方法包括获得湿混合物的步骤（1），获得干燥的颗粒组合物的步骤（2）和进行表面交联反应的步骤（3）。由此，由于每个步骤的处理时间变短，因此可以大量生产具有优异物理性能的吸水性树脂。此外，本发明的吸水性树脂的制造方法包括改性工序和冷却工序。通过使用包括具有多个搅拌板的旋转轴的搅拌装置进行修改步骤和/或冷却步骤，并且搅拌装置包括具有特定厚度的搅拌板和/或具有特定厚度的刮板形状。由此，可以抑制修饰工序和/或冷却工序中的细粉的产生。

9. 发明申请

US20070149701A1 Production method for hydrophilic polymer 有权
标题翻译：亲水性聚合物的生产方法
公开(公告)号：US20070149701A1
公开(公告)日：2007-06-28
申请号：US11638580
申请日：2006-12-14
申请人： Yorimichi Dairoku , Yoshiro Mitsukami , Yoshio Irie , Shin-ichi Fujino
发明人： Yorimichi Dairoku , Yoshiro Mitsukami , Yoshio Irie , Shin-ichi Fujino
IPC分类号： C09D5/02
CPC分类号： C08F2/20 , C08F2/22 , C08F220/06 , C08F222/1006 , C08J3/245 , C08J2333/02
摘要： The subject invention provides a hydrophilic polymer (water-absorbing resin) which is superior in performance and productivity. According to the production method of the present invention, a hydrophilichigh-molecular-weight compound is dispersed in an aqueous solution containing a hydrophilic monomer. The dispersed hydrophilic high-molecular-weight compound is dissolved by heat of neutralization (heat of hydration) and/or heat of polymerization generated in the process of producing a hydrophilic polymer.
摘要翻译：本发明提供了性能和生产率优异的亲水性聚合物（吸水性树脂）。根据本发明的制造方法，将亲水性高分子量化合物分散在含有亲水性单体的水溶液中。分散的亲水性高分子量化合物在制备亲水性聚合物的过程中产生的中和热（水合热）和/或聚合热溶解。

10. 发明授权

US07201941B2 Process for production of surface-treated particulate water-absorbent resin 有权
标题翻译：表面处理颗粒状吸水性树脂的制造方法
公开(公告)号：US07201941B2
公开(公告)日：2007-04-10
申请号：US10918507
申请日：2004-08-16
申请人： Yoshio Irie , Takaaki Kawano
发明人： Yoshio Irie , Takaaki Kawano
IPC分类号： B05D7/00 , C08F2/46
CPC分类号： C08F291/18 , Y10T428/2982 , Y10T428/2991 , Y10T428/2998
摘要： An object of the present invention is to provide an excellent process for production of a surface-treated particulate water-absorbent resin wherein the process adopts a surface-treatment process that can enhance the properties (which the water-absorbent resin is desired to have) to extremely high levels, and also can solve the prior problems in such as safety, and further can sufficiently carry out the treatment even at a reaction temperature near room temperature. As a means of achieving this object, the process according to the present invention for production of a surface-treated particulate water-absorbent resin is characterized by comprising the steps of: adding a treating liquid to a particulate water-absorbent resin as a base polymer, wherein the treating liquid contains a radically polymerizable compound; and then irradiating the particulate water-absorbent resin with active energy rays while fluidizing the particulate water-absorbent resin, thereby surface-treating it.
摘要翻译：本发明的目的是提供一种制备表面处理颗粒状吸水性树脂的优良方法，其中该方法采用能提高吸水性树脂所需的性能的表面处理方法，达到极高水平，并且也可以解决诸如安全性的先前问题，并且即使在接近室温的反应温度下也能够充分地进行处理。作为实现该目的的手段，根据本发明的用于制备表面处理颗粒吸水性树脂的方法的特征在于包括以下步骤：将处理液添加到作为基础聚合物的颗粒状吸水性树脂其中处理液含有自由基聚合性化合物; 然后在颗粒状吸水性树脂流化的同时用活性能量射线照射颗粒状吸水性树脂，进行表面处理。

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