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1. 发明公开

EP2471845A1 WATER-ABSORBING RESIN BASED ON POLYACRYLIC ACID (SALT) AND PROCESS FOR PRODUCING SAME 有权
标题翻译：基于聚丙烯酸（盐）和用于生产吸水性树脂
公开(公告)号：EP2471845A1
公开(公告)日：2012-07-04
申请号：EP10812023.9
申请日：2010-08-27
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , ISHIZAKI, Kunihiko , KONISHI, Kazumasa
IPC分类号： C08J3/24 , C08J3/12
CPC分类号： A61L15/24 , A61L15/60 , C08F120/06 , C08F220/06 , C08J3/24 , C08J3/245 , C08J2300/14 , C08J2333/02 , C08L33/08 , C08F2222/1013
摘要： A process for producing a water absorbent resin is provided with which it is possible to efficiently and inexpensively obtain a surface-crosslinked water-absorbing resin having excellent material properties, while ensuring high productivity. In continuous production scaled up to a large scale (in particular, 1 t/hr or more), the physical properties are improved and stabilized (for example, a reduction in standard deviation of the physical properties) by a surface crosslinking treatment to further improve absorption against pressure (AAP) and saline flow conductivity (SFC). The process for producing a polyacrylic acid (salt)-type water absorbent resin includes a surface treatment step in which after addition of a surface-crosslinking agent, a crosslinking reaction is conducted in a transverse type continuous stirring apparatus having stirring means including a feeding inlet and a discharging outlet of a water absorbent resin and one or more rotary shafts having with a plurality of stirring discs, and heating means, at a stirring-power index of the device of 3-15 W·hr/kg. Stirring - power index = power consumption of apparatus at the time surface treatment - power consumption at the time of idling × average retention time ) / treatment amount per unit time × average retention time
摘要翻译：本发明提供一种用于生产吸水性树脂的方法，与它能够有效和廉价地获得具有优异的材料性质的表面交联的吸水性树脂，同时确保高的生产率。在连续生产放大到大规模（特别是1吨/小时以上），物理性能得到改善，并且稳定（例如，在物理性能的标准偏差的降低）通过表面交联处理つweiterer提高吸收对压力（AAP）和食盐水导流性（SFC）。用于制备聚丙烯酸的方法（盐）系吸水性树脂包括加入表面交联剂之后，其中，表面处理工序，交联反应是在具有搅拌装置的横式连续搅拌装置包括一个进料口传导和吸水性树脂和一种或搅拌盘，和加热装置，在3-15·W·小时/千克的装置的搅拌功率指数的多个具有多个旋转轴的一排出口。搅拌 - 装置的功率指数=功耗在时间表面处理 - 功耗怠速×平均滞留时间）的每单位时间/治疗量×平均滞留时间的时间

2. 发明授权

EP2927264B1 METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN 有权
公开(公告)号：EP2927264B1
公开(公告)日：2020-04-08
申请号：EP13857778.8
申请日：2013-11-27
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , MATSUMOTO, Makoto , KATO, Seiji , KONISHI, Kazumasa , KADONAGA, Kenji , FUJINO, Shinichi
IPC分类号： C08J3/12

3. 发明公开

EP2927264A1 METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG VON WASSERABSORBIERENDEM HARZ AUFPOLYACRYLSÄURE（SALZ）BASIS
公开(公告)号：EP2927264A1
公开(公告)日：2015-10-07
申请号：EP13857778.8
申请日：2013-11-27
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , MATSUMOTO, Makoto , KATO, Seiji , KONISHI, Kazumasa , KADONAGA, Kenji , FUJINO, Shinichi
IPC分类号： C08J3/12
CPC分类号： C08F22/02 , C08J3/245 , C08J2333/02
摘要： An object of the present invention is to provide a simple method for improving and stabilizing the physical properties (for example, liquid permeability) of a water absorbent resin, without requiring investment in expensive facilities or modification of raw materials. In particular, the object is to provide a method which is useful in the large-scale production of a water absorbent resin. The method for producing polyacrylic acid (salt)-based water absorbent resin of the present invention includes, in order, a step in which an acrylic acid (salt)-based monomer aqueous solution is polymerized, a step in which the water-containing gel-like crosslinked polymer obtained in the polymerization step is dried, a step in which the dried polymer obtained in the drying step is pulverized, and a classification step which takes place after the drying step or after the pulverizing step, wherein, at the time of providing the dried polymer to the roll mill used in the pulverizing step, the dried polymer is provided in a dispersed state in the axial direction of the roll of the roll mill.
摘要翻译：本发明的目的是提供一种用于改善和稳定吸水性树脂的物理性能（例如，液体渗透性）的简单方法，而不需要投资昂贵的设备或改变原料。特别地，本发明的目的是提供一种在大规模生产吸水性树脂中有用的方法。本发明的聚丙烯酸（盐）系吸水性树脂的制造方法依次包括丙烯酸（盐）系单体水溶液聚合的工序，其中含水凝胶将在聚合步骤中获得的类似的交联聚合物干燥，将干燥步骤中获得的干燥聚合物粉碎的步骤和在干燥步骤之后或粉碎步骤之后发生的分级步骤，其中在将干燥的聚合物提供给在粉碎步骤中使用的辊磨机中，干燥的聚合物以辊磨机的辊的轴向分散状态设置。

4. 发明授权

EP2046871B1 PRODUCTION METHOD OF WATER ABSORBENT RESIN POWDER AND PACKAGE OF WATER ABSORBENT RESIN POWDER 有权
公开(公告)号：EP2046871B1
公开(公告)日：2020-07-08
申请号：EP07768475.1
申请日：2007-07-19
申请人： Nippon Shokubai Co., Ltd.
发明人： KAJIKAWA, Katsuhiro , OKUDA, Sumio , KONISHI, Kazumasa , ISHIZAKI, Kunihiko
IPC分类号： A61F13/15 , A61F13/49 , A61F13/53 , C08J3/12

5. 发明授权

EP2137238B1 CLASSIFICATION METHOD OF PARTICULATE WATER ABSORBENT RESIN 有权
标题翻译： KLASSIFIZIERUNGSVERFAHREN VONPARTIKELFÖRMIGEMWASSERABSORBIERENDEM HARZ
公开(公告)号：EP2137238B1
公开(公告)日：2017-04-19
申请号：EP08739372.4
申请日：2008-03-24
申请人： Nippon Shokubai Co., Ltd.
发明人： KONISHI, Kazumasa , KADONAGA, Kenji , DAIROKU, Yorimichi , FUJINO, Shinichi
IPC分类号： C08J3/12 , B07B9/00
CPC分类号： B07B9/00 , C08J3/12 , C08J3/122 , C08J2300/00
摘要： A particulate water absorbent resin is obtained by polymerizing an unsaturated monomer so as to form a cross-linked polymer hydrogel and drying and pulverizing the cross-linked polymer hydrogel, and plural classification steps different from each other are carried out so as to remove fine powder. In this manner, the present invention provides the method for classification of particulate water absorbent resin which method allows particulate water absorbent resin having a desired particle diameter range to be efficiently obtained at low cost while securing the high productivity even in case where a larger production equipment is used.
摘要翻译：通过聚合不饱和单体以形成交联聚合物水凝胶并干燥和粉碎交联聚合物水凝胶，获得颗粒状吸水性树脂，并且进行彼此不同的多个分级步骤，以除去细粉末。以这种方式，本发明提供了一种颗粒状吸水性树脂的分类方法，该方法允许以低成本有效地获得具有所需粒径范围的颗粒状吸水性树脂，同时确保高生产率，即使在较大的生产设备用来。

6. 发明授权

EP2471845B1 WATER-ABSORBING RESIN BASED ON POLYACRYLIC ACID (SALT) AND PROCESS FOR PRODUCING SAME 有权
标题翻译：基于聚丙烯酸（盐）和用于生产吸水性树脂
公开(公告)号：EP2471845B1
公开(公告)日：2017-02-15
申请号：EP10812023.9
申请日：2010-08-27
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , ISHIZAKI, Kunihiko , KONISHI, Kazumasa
IPC分类号： A61L15/24 , A61L15/60 , C08F220/06 , C08F120/06 , C08J3/24
CPC分类号： A61L15/24 , A61L15/60 , C08F120/06 , C08F220/06 , C08J3/24 , C08J3/245 , C08J2300/14 , C08J2333/02 , C08L33/08 , C08F2222/1013

7. 发明授权

EP2581403B1 MANUFACTURING METHOD FOR GRANULAR WATER-ABSORBING RESIN 有权
公开(公告)号：EP2581403B1
公开(公告)日：2019-08-28
申请号：EP11792497.7
申请日：2011-06-08
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , KANZAKI, Syuji , KONISHI, Kazumasa
IPC分类号： C08J7/00 , C08J3/12 , F26B3/06 , F26B3/08

8. 发明授权

EP2253657B1 METHOD FOR PRODUCING PARTICULATE WATER-ABSORBING AGENT COMPOSED PRINCIPALLY OF A WATER-ABSORBING RESIN 有权
标题翻译：用于生产主要是由水性树脂颗粒存在的水的装置
公开(公告)号：EP2253657B1
公开(公告)日：2015-06-03
申请号：EP09720556.1
申请日：2009-03-13
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , OKUDA, Sumio , INOUE, Keiji , KONISHI, Kazumasa , NISHIOKA, Toru , WATANABE, Yusuke
IPC分类号： B65G51/02 , B65G53/52 , C08F6/00 , C08F6/02 , C08F20/06 , C08F220/06 , C08J3/24 , B01D39/00 , B01D46/00 , C08L33/02 , C08L101/14
CPC分类号： B65B1/08 , B01J20/26 , B01J20/267 , B01J20/30 , B01J2220/68 , B65B1/06 , B65B1/22 , B65B37/04 , C08F20/06 , C08J3/245

9. 发明公开

EP2581403A1 MANUFACTURING METHOD FOR GRANULAR WATER-ABSORBING RESIN 有权
标题翻译：对于颗粒状吸水性树脂的生产过程
公开(公告)号：EP2581403A1
公开(公告)日：2013-04-17
申请号：EP11792497.7
申请日：2011-06-08
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , KANZAKI, Syuji , KONISHI, Kazumasa
IPC分类号： C08J7/00 , C08J3/12
CPC分类号： C08F222/1006 , C08J3/12 , C08J2300/14 , C08J2333/02
摘要： A method for reducing colored foreign substances in a water absorbent resin by a convenient and simple technique in the production of a water absorbent resin, without requiring any modification of raw materials or high capital investment, is provided. The method for producing a particulate water absorbent resin includes a step of polymerizing an aqueous solution of an unsaturated monomer; and a step of drying a particulate water-containing gel-like cross-linked polymer having a solids concentration of 30% by weight or greater that is obtainable in a gel grain refining step during polymerization or after polymerization, with one or more apparatuses for aerating a water absorbent resin with a high temperature gas stream being installed in the drying step and/or in at least one of the subsequent steps, while in the aerating apparatus, the high temperature gas stream is passed through a filter and then is reused in the same step as the step where the aerating apparatus is installed, or in a different step.

10. 发明公开

EP2253657A1 METHOD OF MANUFACTURING A PARTICULATE WATER-ABSORBING AGENT COMPOSED PRINCIPALLY OF A WATER-ABSORBING RESIN 有权
标题翻译：用于生产主要是由水性树脂颗粒存在的水的装置
公开(公告)号：EP2253657A1
公开(公告)日：2010-11-24
申请号：EP09720556.1
申请日：2009-03-13
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , OKUDA, Sumio , INOUE, Keiji , KONISHI, Kazumasa , NISHIOKA, Toru , WATANABE, Yusuke
IPC分类号： C08J3/12 , A61F13/49 , A61F13/53 , B01D46/54 , B01J20/26
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：提供了一种用于颗粒状吸水剂，其可以收集过程有效地生产，而不恶化工作环境过程中产生的细粉的制造方法，并且因此通过其制造方法制造的颗粒状吸水剂。该生产方法包括：（1）用于获得聚合物凝胶聚合工序，（2）干燥的干燥步骤中，所述聚合物凝胶以获得颗粒状吸水树脂，（3），用于筛分所述颗粒状吸水性树脂分级步骤，（4）用于交联的表面的附近的表面交联步骤中，所述颗粒状吸水性树脂（5）用于填充的包装材料容器与所述的颗粒状吸水剂进行包装和包装步骤（6 ）输送工序输送在每一个步骤到另一个步骤生产出来的产品。在该制造方法中，包含在气体中的细粉末组成的空气的主要地，在任一步骤，可通过使用俘获材料的收集。

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