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1. 发明授权

US10307506B2 Process for producing water-absorbing resin 有权
公开(公告)号：US10307506B2
公开(公告)日：2019-06-04
申请号：US13634128
申请日：2011-03-14
申请人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
发明人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
IPC分类号： C08F6/00 , C08J3/12 , C08J3/24 , A61L15/56 , A61L15/60 , B01J20/26
摘要： The disclosed process for continuously producing a water-absorbing resin comprising a plurality of joined continuous steps; a polymerization step of polymerizing an aqueous unsaturated monomer solution, a drying step of drying a particulated water-containing gel-like crosslinked polymer obtained in a finely crushing step during the polymerization or after the polymerization, a pulverizing step after the drying, a classification step after the drying, and a surface treatment step for the water-absorbing resin powder after the classification step. In the process, with some of the above steps kept running, the other steps are interrupted, and subsequently all the steps are restarted.

2. 发明授权

US09976001B2 Process for producing water-absorbing resin powder 有权
公开(公告)号：US09976001B2
公开(公告)日：2018-05-22
申请号：US13578118
申请日：2011-02-10
申请人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
发明人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
IPC分类号： C08J3/00 , C08L33/02 , C08J3/12 , C08J3/24 , B01J20/26
CPC分类号： C08J3/12 , B01J20/267 , B01J2220/68 , C08J3/245 , C08J2300/14
摘要： Provided is a process for producing a water-absorbing resin powder which contains a given amount of water added thereto, has a low dust content, and has high material properties. When a water-absorbing resin powder which has undergone surface crosslinking is produced on an industrial scale, various problems concerning production are eliminated and a long-term stable operation is possible without causing a deterioration in the material properties of the resin. Even when the process is continued over a long period, the material properties are stabilized (decrease in standard deviation) or improved (improvement in AAP). The process for producing a water-absorbing resin comprises, in the following order, a first classification step for classifying a water-absorbing resin, a surface crosslinking step after the classification, a water addition step for adding water to the water-absorbing resin powder after or during the surface crosslinking, a second classification step, and a conveying step.

3. 发明授权

US09453091B2 Method of producing water absorbent resin 有权
标题翻译：生产吸水性树脂的方法
公开(公告)号：US09453091B2
公开(公告)日：2016-09-27
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： A61L15/24 , C08F120/06 , C08F220/06 , C08J3/24 , B07B1/56 , C08F6/00 , B07B13/16 , G01N15/02 , B07B1/28
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： A method for producing a water absorbent resin, the method including a polymerization step, a drying step, a classification step, and a surface crosslinking step. The classification step carried out before or after the surface crosslinking step requires use of a metal sieve mesh having stretch tension from 35 to 100 N/cm, in which an air jet cleaner or an air jet brush cleaner and plural tapping balls or tapping blocks are installed below the metal sieve mesh, a classification aid particle having specific gravity different from that of the water absorbent resin powder is added, and a fine powder of the water absorbent resin and the classification aid particle are removed.
摘要翻译：一种吸水性树脂的制造方法，其包括聚合工序，干燥工序，分级工序以及表面交联工序。在表面交联步骤之前或之后进行的分级步骤需要使用具有35至100N / cm的拉伸张力的金属筛网，其中空气喷射清洁器或空气喷射刷清洁器和多个敲击球或攻丝块是在金属筛网的下方，添加比重与吸水性树脂粉末不同的分级助剂粒子，除去吸水性树脂和分级助剂粒子的细粉末。

4. 发明授权

US09233186B2 Process for producing water-absorbing resin 有权
标题翻译：吸水树脂的制造方法
公开(公告)号：US09233186B2
公开(公告)日：2016-01-12
申请号：US13634151
申请日：2011-03-14
申请人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
发明人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
IPC分类号： A61L15/56 , A61L15/60 , C08J3/12 , C08F6/00 , B01J20/26 , C08J3/24
CPC分类号： A61L15/56 , A61L15/60 , B01J20/261 , B01J20/267 , B01J2220/68 , C08F6/008 , C08J3/12 , C08J3/122 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： The disclosed process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization; a pulverizing step after the drying, a classification step after the drying, and a surface treatment step after the classification. In the process is, the surface-treatment step is interrupted with a heating treatment apparatus kept in a heated state and thereafter the surface treatment step is restarted.
摘要翻译：所公开的生产吸水性树脂的方法，包括：使含水不饱和单体聚合的聚合步骤; 干燥步骤，在聚合过程中或在聚合后，在细粉碎步骤中得到颗粒状含水凝胶状交联聚合物; 干燥后的粉碎工序，干燥后的分级工序，分级后的表面处理工序。在该过程中，表面处理步骤被保持在加热状态的加热处理装置中断，然后重新开始表面处理步骤。

5. 发明授权

US09051067B2 Method for producing particulate water-absorbing agent composed principally of water-absorbing resin 有权
标题翻译：主要由吸水树脂组成的颗粒状吸水剂的制造方法
公开(公告)号：US09051067B2
公开(公告)日：2015-06-09
申请号：US12921877
申请日：2009-03-13
申请人： Kozo Nogi , Sumio Okuda , Keiji Inoue , Kazumasa Konishi , Toru Nishioka , Yusuke Watanabe
发明人： Kozo Nogi , Sumio Okuda , Keiji Inoue , Kazumasa Konishi , Toru Nishioka , Yusuke Watanabe
IPC分类号： C08J3/24 , C08F20/06 , B65B1/08 , B01J20/26 , B65B37/04 , B65B1/06 , B65B1/22 , B01J20/30
CPC分类号： B65B1/08 , B01J20/26 , B01J20/267 , B01J20/30 , B01J2220/68 , B65B1/06 , B65B1/22 , B65B37/04 , C08F20/06 , C08J3/245
摘要： Provided is a production method for the particulate water-absorbing agent, which can collecting the fine powders generated during the producing process efficiently without worsening working environment, and also the particulate water-absorbing agent produced by the production method thereof. This production method includes (1) a polymerization step for obtaining a polymer gel, (2) a drying step for drying said polymer gel to obtain a particulate water-absorbing resin, (3) a classification step for sieving said particulate water-absorbing resin, (4) a surface cross-linking step for cross-linking the neighborhood of the surface of said particulate water-absorbing resin (5) a packaging step for filling a packaging material container with said particulate water-absorbing agent for packaging and (6) a transportation step for transporting the products produced in each of the steps to the other steps. In this production method, the fine powders contained in gas composed principally of air, in any of the steps, can be collected by use of a trapping material.
摘要翻译：本发明提供一种颗粒状吸水剂的制造方法，其能够有效地收集生产过程中产生的微细粉末而不会使工作环境恶化，也可以通过其制造方法生产的颗粒状吸水剂。该制造方法包括（1）获得聚合物凝胶的聚合步骤，（2）干燥所述聚合物凝胶以获得颗粒状吸水性树脂的干燥步骤，（3）筛分所述颗粒状吸水性树脂（4）用于将所述颗粒状吸水树脂（5）的表面附近交联的表面交联步骤，用于将包装材料容器与所述颗粒状吸水剂填充的包装步骤（6 ）用于将在每个步骤中生产的产品运送到其他步骤的运输步骤。在该制造方法中，可以通过使用捕集材料来收集在任何步骤中主要由空气组成的气体中所含的细粉末。

6. 发明授权

US08513364B2 Production method of water-absorbent resin 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：US08513364B2
公开(公告)日：2013-08-20
申请号：US11336312
申请日：2006-01-20
申请人： Masazumi Sasabe , Sumio Okuda , Yorimichi Dairoku , Shuji Kanzaki , Yoshihiro Kita , Motohiro Imura
发明人： Masazumi Sasabe , Sumio Okuda , Yorimichi Dairoku , Shuji Kanzaki , Yoshihiro Kita , Motohiro Imura
IPC分类号： C08F20/06
CPC分类号： B01J19/123 , B01J19/22 , B01J2219/0877 , C08F2/01
摘要： A production method of a water-absorbent resin includes the steps of: obtaining a hydrogel by supplying monomer liquid to a reaction device so that the monomer liquid is polymerized; and detaching the hydrogel from the reaction device, wherein the reaction device's surface in contact with the monomer liquid at a position where polymerization occurs is made of a fluororesin having a melt viscosity of less than 1×108 poise at 380° C. On this account, it is possible to obtain a water-absorbent resin having less amounts of an extractable content with high productivity and it is possible to carry out continuous production for an extended period of time.
摘要翻译：吸水性树脂的制造方法包括以下步骤：通过向反应装置供给单体液体以使单体液体聚合而获得水凝胶; 并从反应装置中分离出水凝胶，其中反应装置在聚合发生位置与单体液体接触的表面由熔融粘度在380℃下小于1×108泊的氟树脂制成。，可以以高生产率获得具有较少量的可萃取物质的吸水性树脂，并且可以长时间地进行连续生产。

7. 发明授权

US08138292B2 Method for producing particulate water—absorbing agent composed principally of water absorbing resin 有权
标题翻译：主要由吸水树脂组成的颗粒状吸水剂的制造方法
公开(公告)号：US08138292B2
公开(公告)日：2012-03-20
申请号：US12922011
申请日：2009-03-13
申请人： Koji Matsumoto , Sumio Okuda , Kunihiko Ishizaki
发明人： Koji Matsumoto , Sumio Okuda , Kunihiko Ishizaki
IPC分类号： C08F20/06
CPC分类号： B65B1/08 , B01J20/26 , B01J20/267 , B01J20/30 , B01J2220/68 , B65B1/06 , B65B1/22 , B65B37/04 , C08F20/06 , C08J3/245
摘要： Provided is a production method for the particulate water-absorbing agent, which can contribute to property enhancement, and further improvement of productivity or the like, as well. One example of the production method for the particulate water-absorbing agent relevant to the present invention includes the polymerization step for obtaining a polymer gel; the drying step for drying the polymer gel to obtain a dried substance; the pulverization step for pulverizing the dried substance or the polymer gel to obtain the particulate water-absorbing resin; the classification step for sieving the particulate water-absorbing resin; the granule sizing step for granule sizing the particulate water-absorbing agent obtained from the particulate water-absorbing resin; and the transporting step for transporting the products produced in each of the steps to other steps. Preferably, one or more steps selected from the pulverization step, the classification step, the granule sizing step and the transporting step after the pulverization step are set under reduced pressure state.
摘要翻译：本发明提供一种颗粒状吸水剂的制造方法，能够有助于提高性能，进一步提高生产率等。与本发明有关的颗粒状吸水剂的制造方法的一个例子包括获得聚合物凝胶的聚合工序; 用于干燥聚合物凝胶以获得干燥物质的干燥步骤; 用于粉碎干燥物质或聚合物凝胶的粉碎步骤以获得颗粒状吸水树脂; 用于筛分颗粒状吸水树脂的分级步骤; 从颗粒状吸水树脂获得的颗粒状吸水剂的颗粒尺寸的颗粒施胶步骤; 以及用于将在每个步骤中生产的产品运送到其他步骤的运输步骤。优选在减压状态下设置从粉碎工序，分级工序，颗粒施胶步骤和粉碎步骤后的输送步骤中选出的一个或多个步骤。

8. 发明授权

US09624322B2 Method of producing water absorbent resin 有权
公开(公告)号：US09624322B2
公开(公告)日：2017-04-18
申请号：US13635055
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： B07B1/56 , C08F120/06 , C08F220/06 , C08J3/24 , C08F6/00 , B07B1/54 , B07B13/16 , G01N15/02 , B07B1/28
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： A method for producing a water absorbent resin, the method including a polymerization step, a drying step, a classification step, and a surface crosslinking step. The classification step carried out before or after the surface crosslinking step requires use of a tapping material and a metal sieve mesh, in which the tapping material being heated at 40° C. to 100° C. is installed below the metal sieve mesh, and the metal sieve mesh has an area of 1 to 10 m2/sheet. The classification step further requires introducing a classification aid particle, which has a specific gravity different from that of the water absorbent resin, to the metal sieve mesh; and monitoring the presence or absence of damage to the metal sieve mesh.

9. 发明授权

US08703859B2 Production method for water-absorbing resin composition 有权
标题翻译：吸水性树脂组合物的制造方法
公开(公告)号：US08703859B2
公开(公告)日：2014-04-22
申请号：US11725496
申请日：2007-03-20
申请人： Takahiro Kitano , Yorimichi Dairoku , Sumio Okuda , Kozo Nogi , Motohiro Imura
发明人： Takahiro Kitano , Yorimichi Dairoku , Sumio Okuda , Kozo Nogi , Motohiro Imura
IPC分类号： C08K3/34 , C08L31/00 , C08L33/00 , C08L33/02
CPC分类号： A61L15/22 , A61L15/60 , C08J3/203
摘要： The present invention provides a method for being capable of sufficiently exerting property improvement effect by the addition of additive particles other than water-absorbing resin to water-absorbing resin particles. The problems can be solved by using additive particles having over cohesive particles in an amount equal to or less than a predetermined amount, or by using the additive particles by crushing or classifying in advance, before mixing with water-absorbing resin particles. Alternatively, the problem can be solved by subjecting a mixture of the water-absorbing resin particles and the additive particles to pneumatic transportation processing, in particular, in a heated state, after mixing or at the same time as mixing. Further, the present invention provides a water-absorbing resin composition, which is capable of stably exerting high-level property. The problems can be solved by a water-absorbing resin composition, where the addition amount of additive particles and amount of free additive particles satisfies a predetermined relation.
摘要翻译：本发明提供一种能够通过向吸水性树脂粒子中添加吸水性树脂以外的添加剂粒子来充分发挥特性改善效果的方法。可以通过使用具有等于或小于预定量的粘结颗粒的添加剂颗粒，或者通过在与吸水性树脂颗粒混合之前预先使用添加剂颗粒进行粉碎或分级来解决这些问题。或者，可以通过使吸水性树脂颗粒和添加剂颗粒的混合物在混合之后或在混合的同时进行气动输送处理，特别是处于加热状态来解决问题。此外，本发明提供能够稳定地施加高水平特性的吸水性树脂组合物。这些问题可以通过吸水性树脂组合物来解决，其中添加剂颗粒的添加量和游离添加剂颗粒的量满足预定的关系。

10. 发明申请

US20090321682A1 Production Method Of Water Absorbent Resin Powder And Package Of Water Absorbent Resin Powder 审中-公开
标题翻译：吸水树脂粉末和吸水树脂粉末包装的生产方法
公开(公告)号：US20090321682A1
公开(公告)日：2009-12-31
申请号：US12308803
申请日：2007-07-19
申请人： Katsuhiro Kajikawa , Sumio Okuda , Kazumasa Konishi , Kunihiko Ishizaki
发明人： Katsuhiro Kajikawa , Sumio Okuda , Kazumasa Konishi , Kunihiko Ishizaki
IPC分类号： C09K3/00 , B65D85/00
CPC分类号： C08F2/10 , C08J7/123
摘要： A method according to the present invention for producing water absorbent resin powder is a method for producing water absorbent resin having a surface cross-linked structure, and includes: a polymerization step in which an unsaturated monomer aqueous solution is polymerized; a drying step in which a hydrogel cross-linked polymer obtained in the polymerization step is dried; a surface treatment step in which the hydrogel cross-linked polymer or a dried hydrogel cross-linked polymer is subjected to a surface treatment; and a sorting step, carried out after the drying step, in which a foreign matter included in a water absorbent resin is color-sorted from the water absorbent resin entirely or partially. As a result, it is possible to obtain a water absorbent resin which has high properties and is less likely to be colored. In this way, there is provided the water absorbent resin powder production method in which the color sorting technique is used to remove foreign matters from the water absorbent resin.
摘要翻译：本发明的吸水性树脂粉末的制造方法是具有表面交联结构的吸水性树脂的制造方法，其特征在于，包含：使不饱和单体水溶液聚合的聚合工序; 干燥步骤，其中在聚合步骤中获得的水凝胶交联聚合物被干燥; 对水凝胶交联聚合物或干燥的水凝胶交联聚合物进行表面处理的表面处理步骤; 以及在干燥步骤之后进行的分类步骤，其中包含在吸水性树脂中的异物完全或部分地从吸水性树脂中分选。结果，可以获得具有高性能并且不太可能着色的吸水性树脂。以这种方式，提供了使用颜色分选技术从吸水性树脂除去异物的吸水性树脂粉末的制造方法。

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