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11. 发明授权

EP1594557B1 WATER-ABSORBENT RESIN COMPOSITION AND ITS PRODUCTION PROCESS 有权
公开(公告)号：EP1594557B1
公开(公告)日：2019-05-01
申请号：EP04708891.9
申请日：2004-02-06
申请人： NIPPON SHOKUBAI CO., LTD.
发明人： TORII, Kazushi , MITSUKAMI, Yoshiro , IMURA, Motohiro , IWAMURA, Taku , KITAYAMA, Toshimasa , KADONAGA, Kenji , INOUE, Hiroki , MIYAKE, Koji , NOGI, Kozo , NAKAMURA, Masatoshi , SAKAMOTO, Shigeru , MACHIDA, Sayaka
IPC分类号： A61L15/60

12. 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

13. 发明授权

EP2253563B2 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
公开(公告)号：EP2253563B2
公开(公告)日：2016-06-01
申请号：EP09720188.3
申请日：2009-03-13
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , ISHIZAKI, Kunihiko , MATSUMOTO, Koji
IPC分类号： B65D88/64 , C08F20/00 , C08J3/12 , B65B1/08 , B65B37/04 , B01J20/26 , B01J20/30 , B65B1/06 , B65B1/22 , C08F20/06 , C08J3/24
CPC分类号： B65B1/08 , B01J20/26 , B01J20/267 , B01J20/30 , B01J2220/68 , B65B1/06 , B65B1/22 , B65B37/04 , C08F20/06 , C08J3/245

14. 发明公开

EP2669319A1 MANUFACTURING METHOD FOR POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBENT RESIN POWDER 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINES WASSERABSERBIERENDEN HARZPULVERS AUFPOLYACRYLSÄURE（SALZ）BASIS
公开(公告)号：EP2669319A1
公开(公告)日：2013-12-04
申请号：EP12739428.6
申请日：2012-01-30
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , NAKAMURA, Masatoshi , SHIBATA, Koji , HONDA, Koji , WATANABE, Yusuke , MATSUMOTO, Satoshi , NAKATSURU, Reiko , ISHIZAKI, Kunihiko
IPC分类号： C08J3/24
摘要： From a view pint of decreasing an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence due to an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct.
There is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising storing a non-polymerized organic compound being a raw material (modified raw material) of a water absorbent resin powder in a heated state, thereafter, mixing the non-polymerized organic compound with other compound at a predetermined ratio and, further, mixing the mixture into a water absorbent resin powder.
摘要翻译：特别是在使用碳酸亚烷基酯化合物作为表面交联剂时，从表面交联后的规格产物减少的观点出发，由于空气温度的影响大，需要还原生成的乙二醇作为副产品。提供一种聚丙烯酸（盐）系吸水性树脂粉末的制造方法，其特征在于，将作为吸水性树脂粉末的原料（改性原料）的未聚合有机化合物以加热状态储存，以预定的比例将未聚合的有机化合物与其它化合物混合，再将混合物混合到吸水性树脂粉末中。

15. 发明公开

EP2565219A1 METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER 有权
标题翻译：生产聚丙烯酸（盐）基吸水树脂粉末的方法
公开(公告)号：EP2565219A1
公开(公告)日：2013-03-06
申请号：EP11775082.8
申请日：2011-04-27
申请人： Nippon Shokubai Co., Ltd.
发明人： WATANABE, Yusuke , TORII, Kazushi , NOGI, Kozo , ISHIZAKI, Kunihiko , NAKATSURU, Reiko , SAKAMOTO, Shigeru
IPC分类号： C08J3/12
CPC分类号： C08J3/12 , C08F6/008 , C08F122/105 , C08F220/06 , C08J3/122 , C08J3/245 , C08J2333/02 , C08L33/02
摘要： A water absorbent resin having less fine powder or powdery dust and a controlled particle size is provided, and the water absorption rate of the water absorbent resin is increased by a simple method at low cost, while maintaining or improving other physical properties such as liquid permeability. Disclosed is a method for producing a polyacrylic acid (salt)-type water absorbent resin powder, which includes, in sequence, a step of polymerizing an aqueous solution of acrylic acid (salt)-type monomer; a step of gel-crushing a gel of a water-containing gel-like crosslinked polymer during polymerization or after polymerization; a step of drying the water-containing gel-like crosslinked polymer; and a step of pulverizing and classifying the dried polymer, wherein water absorbent resin fine particles having a particle size of less than 150 µm or a hydrated-particles thereof is added to a step prior to the drying step, and in the drying step, hot air drying is carried out with a hot air having an average flow velocity of 1.0 to 3.0 [m/s], a dew point of 30°C to 100°C, and a hot air temperature of 140°C to 235°C.
摘要翻译：本发明提供细粉末或粉末状粉尘少且粒径可控的吸水性树脂，并且通过简单的方法以低成本提高吸水性树脂的吸水率，同时保持或改善其它物理性能如液体渗透性。本发明提供聚丙烯酸（盐）系吸水性树脂粉末的制造方法，其依次包括：使丙烯酸（盐）系单体的水溶液聚合的工序; 在聚合中或聚合后凝胶粉碎含水凝胶状交联聚合物的凝胶的步骤; 干燥含水凝胶状交联聚合物的步骤; 以及将干燥过的聚合物粉碎并分级的步骤，其中在干燥步骤之前的步骤中加入粒径小于150μm的吸水树脂细颗粒或其水合颗粒，并且在干燥步骤中，热用平均流速为1.0至3.0 [m / s]，露点为30℃至100℃，热空气温度为140℃至235℃的热空气进行空气干燥。

16. 发明公开

EP2548911A1 METHOD OF PRODUCING ABSORBENT RESIN 有权
标题翻译：生产吸收性树脂的方法
公开(公告)号：EP2548911A1
公开(公告)日：2013-01-23
申请号：EP11756405.4
申请日：2011-03-17
申请人： Nippon Shokubai Co., Ltd.
发明人： OKUDA, Sumio , KANZAKI, Syuji , ISHIZAKI, Kunihiko , FUJINO, Shinichi , NOGI, Kozo
IPC分类号： C08J3/12 , B01J20/26 , C08F20/06
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：本发明提供不需要原料改变或高投资的方法，通过简单的技术提高并稳定吸水性树脂的物性（例如液体透过性）的方法。公开了一种生产吸水树脂的方法，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; 干燥所述含水凝胶状交联聚合物以获得吸水树脂粉末的干燥步骤; 将吸水性树脂粉末分级的分级步骤; 以及将所述吸水性树脂粉末进行表面交联的表面交联工序，其中，在所述表面交联工序前和/或所述表面交联工序后进行的分级工序中，所述金属筛网的拉伸张力（张力）分级步骤为35 [N / cm]至100 [N / cm]。

17. 发明公开

EP2471846A1 POLYACRYLIC ACID (SALT) WATER ABSORBENT RESIN AND METHOD 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：EP2471846A1
公开(公告)日：2012-07-04
申请号：EP10812024.7
申请日：2010-08-27
申请人： Nippon Shokubai Co., Ltd.
发明人： KITANO, Takahiro , NOGI, Kozo , ISHIZAKI, Kunihiko
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： Disclosed is a method for producing a water absorbent resin, by which a surface-crosslinked water absorbent resin having excellent physical properties can be efficiently obtained at low cost, while assuring high productivity. When the production scale is increased to a continuous production at 1 t/hr or more, the physical properties are improved and stabilized (for example, standard deviation of the physical properties is reduced) by a surface-crosslinking treatment, and the absorption against pressure (AAP) and liquid permeability (SFC) are further improved. Specifically disclosed is a method for producing a water absorbent resin, which is characterized in that the stirring shaft of the continuous mixing apparatus for the surface-crosslinking agent is heated during the mixing step of the surface-crosslinking agent or that the continuous mixing apparatus for the surface-crosslinldng agent is operated at a pressure that is reduced relative to the ambient pressure and a gas flow is passed through the mixing apparatus during the mixing of the surface-crosslinking agent so that the gas flow in the mixing apparatus is 40°C or more (when defined with respect to the gas temperature at the exit).
摘要翻译：公开了一种用于生产吸水性树脂，通过该具有优异物理性质的表面交联的吸水性树脂，能够以低成本有效地获得，同时确保高生产率的方法。当生产规模以1吨/ hr以上增大到连续生产，物性得到改善，并且稳定的（例如，物理性能的标准偏差减小）通过表面交联处理，以及对压力的吸收（AAP）和液体渗透性（SFC）进一步提高。具体地说游离缺失盘是用于生产吸水性树脂的方法，所有这些都在做了表面交联剂的连续混合设备的搅拌轴是在表面交联剂的混合步骤中加热为特征的或没有连续混合装置表面crosslinldng剂在压力没有被象在混合装置中的气流中的表面交联剂的混合期间相对于环境压力和气流减少是通过混合装置通过操作是40℃ 或多个（当与在出口处相对于气体温度定义）。

18. 发明公开

EP2471844A1 POLYACRYLIC ACID (SALT) WATER ABSORBENT RESIN AND METHOD 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：EP2471844A1
公开(公告)日：2012-07-04
申请号：EP10812021.3
申请日：2010-08-27
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , ISHIZAKI, Kunihiko , KANZAKI, Syuji
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： Disclosed is a method for producing a water absorbent resin, by which a surface-crosslinked water absorbent resin having excellent physical properties can be efficiently obtained at low cost, while assuring high productivity. When the production scale is increased to a continuous production on a huge scale (for example, 1 t/hr or more), the physical properties are improved and stabilized (for example, standard deviation of the physical properties is reduced) by a surface-crosslinking treatment, and the absorption against pressure (AAP) and liquid permeability (SFC) are further improved. Specifically disclosed is a method for producing a polyacrylic acid (salt)-type water absorbent resin, which comprises: a step of preparing an aqueous monomer solution using an acrylic acid (salt); a step of continuously polymerizing the aqueous monomer solution; shedding step of a hydrous gel-like crosslinked polymer during or after the polymerization; a step of drying the thus-obtained particulate hydrous gel-like crosslinked polymer; and a surface treatment step in which a surface-crosslinking agent is added to and reacted with the dried water absorbent resin powder. In the surface treatment step, the continuous mixing apparatus for the surface treatment agent and the continuous heating device are connected and periodic shielding is performed between the mixing apparatus and the heating device.
摘要翻译：公开了一种用于生产吸水性树脂，通过该具有优异物理性质的表面交联的吸水性树脂，能够以低成本有效地获得，同时确保高生产率的方法。当生产规模增大到连续生产上的规模巨大（例如1吨/小时以上），物理性能得到改善，并且稳定的（例如，物理性能的标准偏差减小）由一种表面交联处理，和对压力（AAP）和液体渗透性（SFC）的吸收进一步提高。具体盘游离缺失是用于生产聚丙烯酸（盐）系吸水性树脂，其包括一个方法：准备使用丙烯酸（盐）以wässrige单体溶液的工序; 的连续wässrige单体溶液聚合的步骤; 过程中或在聚合后脱落含水凝胶状交联聚合物的工序; 将由此得到的粒子状含水凝胶状交联聚合物干燥的步骤; 和表面处理步骤，其中表面交联剂被加入并与干燥的吸水性树脂粉末进行反应。在表面处理工序中，用于表面处理剂和连续混合装置中的连续加热装置被连接，并且定期屏蔽的混合装置和加热装置之间执行。

19. 发明公开

EP2261148A1 TRANSPORT METHOD FOR ABSORBEND RESIN POWDER 有权
标题翻译：运输工具FÜRWASSERABSORBIERENDEHARZPULVERFÖRMIGESUBSTANZ
公开(公告)号：EP2261148A1
公开(公告)日：2010-12-15
申请号：EP09724541.9
申请日：2009-03-26
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , NAKAMURA, Masatoshi , MATSUMOTO, Koji , AWAI, Kazuma
IPC分类号： B65G51/02
CPC分类号： C08J3/12 , C08F6/008 , C08J3/075 , C08J3/245 , C08J2333/02
摘要： [PROBLEM] To provide a pneumatic conveyance method for a water-absorbing resin powder substance, which is capable of suppressing property decrease of the water-absorbing resin powder substance, while suppressing obstruction phenomenon.
[SOLUTION] A conveyance method for a water-absorbing resin powder substance by pneumatic conveyance of the water-absorbing resin powder substance during a production step via a transportation pipeline,wherein a variation of a solid-gas ratio (R1/R2) exceeds 1 and is equal to or smaller than 7, provided that R1 (kg-resin/kg-air) stands for an initial solid-gas ratio at a start point of the transportation pipeline, and R2 (kg-resin/kg-air) stands for a terminal solid-gas ratio at a terminal point of the transportation pipeline is provided.
摘要翻译：提供一种能够抑制吸水性树脂粉末物质的降低的同时抑制阻塞现象的吸水性树脂粉末物质的气动输送方法。 [解决方案]一种吸水性树脂粉末物质的输送方法，其特征在于，在制造工序中，通过输送管线气动输送吸水性树脂粉末物质，其中固体气体比（R1 / R2）的变化超过1 并且等于或小于7，条件是R1（kg-树脂/ kg-空气）表示在输送管线的起点处的初始固气比，R2（kg-树脂/ kg-空气）提供了在输送管线的终点处的终端固体气体比。

20. 发明授权

EP1242225B1 METHOD FOR PRODUCTION OF POROUS CROSS-LINKED POLYMER 有权
标题翻译：法生产多孔交联聚合物
公开(公告)号：EP1242225B1
公开(公告)日：2007-02-21
申请号：EP00980052.5
申请日：2000-12-12
申请人： NIPPON SHOKUBAI CO., LTD.
发明人： SASABE, Masazumi , SAKAMOTO, Katsuhiko , NOGI, Kozo
IPC分类号： B29C44/30
CPC分类号： B29C44/308 , B29C44/30 , C08J9/283
摘要： This invention has an object thereof to provide a method for producing an HIPE polymer which can prevent the HIPE from leaking, allow the formed HIPE including the opposite end parts thereof to acquire and retain an expected thickness, prevent the formed HIPE from failing to polymerize due to a decrease in an oxygen content, and allow the formed HIPE to retain a sheet such as an upper film. Such an object of this invention can be accomplished by a method for the production of a porous cross-linked polymer by the horizontal continuous polymerization of an HIPE, which comprises using weirs one each in the opposite end parts in the width direction of an HIPE supporting member to be used for the horizontal continuous polymerization of the HIPE. Another object of this invention is to provide a method for improving the smoothness of surface and the accuracy of thickness in the novel method for the production of a porous cross-linked polymer by the horizontal continuous polymerization of an HIPE. Such an object of this invention can be accomplished by a method for the production of a porous cross-linked polymer by the horizontal continuous polymerization of an HIPE by using a supporting member on the lower side and a sheet material on the upper side, which comprises performing the polymerization by exerting tensile force in the width direction and/or the travel direction of the sheet material. Still another object of this invention resides in providing, in a novel method for the horizontal continuous polymerization of an HIPE, a novel method for the production of a porous cross-linked polymer of high accuracy of thickness by supplying the HIPE to an apparatus for the horizontal continuous polymerization of the HIPE, and imparting the shape to the HIPE and regulating the thickness of the HIPE thereby effecting the horizontal continuous polymerization with high accuracy of thickness. This object can be accomplished by a method for the production of a porous cross-linked polymer by the horizontal continuous polymerization of an HIPE, which comprises regulating the thickness of the HIPE by passing the HIPE between a movable supporting member and an object disposed so as to retain a prescribed gap from the movable supporting member.

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