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1. 发明授权

US09567414B2 Method for producing polyacrylic acid (salt)-based water absorbent resin powder 有权
标题翻译：制备聚丙烯酸（盐）基吸水树脂粉末的方法
公开(公告)号：US09567414B2
公开(公告)日：2017-02-14
申请号：US13982166
申请日：2012-01-30
申请人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki , Kazuki Kimura , Sayaka Machida
发明人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki , Kazuki Kimura , Sayaka Machida
IPC分类号： C08F20/06 , C08F220/06 , C08J3/12 , C09D133/04 , C08J3/24
CPC分类号： C08F20/06 , C08F220/06 , C08J3/12 , C08J3/24 , C08J3/245 , C08J2333/02 , C09D133/04 , C08F2222/1013
摘要： From a view point of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent solution into a water absorbent resin powder containing at least one or more kinds of ion reactive surface crosslinking agents is performed two or more times.
摘要翻译：从表面交联后的特定产品的减少的观点来看，特别是使用碳酸亚烷基酯化合物作为表面交联剂时，由于空气温度的影响大，所以需要还原所生成的乙二醇作为副产物，并且提供了一种制备基于聚丙烯酸（盐）的吸水性树脂粉末的方法，包括使基于丙烯酸（盐）的单体水溶液聚合的步骤，干燥所得聚合物的步骤，任选的研磨分级步骤和表面交联步骤，其中在表面交联步骤中，（1）将含有碳酸亚烃酯化合物和多元醇化合物的表面交联剂混合到吸水性树脂粉末中，将混合物加热和/或（2）混合表面的混合处理，和/或（2）混合表面的混合处理交联剂溶液进入含有至少一种或多种离子反应性表面交联剂的吸水性树脂粉末中进行两次或更多次。

2. 发明授权

US10493429B2 Method for producing polyacrylic acid (salt)-based water absorbent resin powder 有权
公开(公告)号：US10493429B2
公开(公告)日：2019-12-03
申请号：US13982147
申请日：2012-01-30
申请人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki
发明人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki
IPC分类号： C08J3/24 , B01J20/26 , B01J20/28 , B01J20/30
CPC分类号： B01J20/3085 , B01J20/267 , B01J20/28085 , C08J3/245 , B01J2220/68 , C08J2333/02
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.

3. 发明申请

US20140042364A1 METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER 审中-公开
标题翻译：生产聚丙烯酸（盐） - 水吸收树脂粉末的方法
公开(公告)号：US20140042364A1
公开(公告)日：2014-02-13
申请号：US13982147
申请日：2012-01-30
申请人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki
发明人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki
IPC分类号： B01J20/30
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，需要还原生产的乙二醇作为副产品。提供了一种制备基于聚丙烯酸（盐）的吸水性树脂粉末的方法，其包括将加热状态下的吸水性树脂粉末的原料（改性原料）的未聚合有机化合物，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。

4. 发明申请

US20140031473A1 METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER 有权
标题翻译：生产聚丙烯酸（盐） - 水吸收树脂粉末的方法
公开(公告)号：US20140031473A1
公开(公告)日：2014-01-30
申请号：US13982166
申请日：2012-01-30
申请人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki , Kazuki Kimura , Sayaka Machida
发明人： Kozo Nogi , Masatoshi Nakamura , Hirofumi Shibata , Koji Honda , Yusuke Watanabe , Satoshi Matsumoto , Reiko Nakatsuru , Kunihiko Ishizaki , Kazuki Kimura , Sayaka Machida
IPC分类号： C08F20/06
CPC分类号： C08F20/06 , C08F220/06 , C08J3/12 , C08J3/24 , C08J3/245 , C08J2333/02 , C09D133/04 , C08F2222/1013
摘要： From a viewpoint of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent solution into a water absorbent resin powder containing at least one or more kinds of ion reactive surface crosslinking agents is performed two or more times.
摘要翻译：从表面交联后的特定产品的减少的观点出发，特别是使用碳酸亚烷基酯化合物作为表面交联剂时，空气温度的影响大，需要将生成的乙二醇副产物，并且提供了一种生产聚丙烯酸（盐）基吸水性树脂粉末的方法，包括使基于丙烯酸（盐）的单体水溶液聚合的步骤，干燥所得聚合物的步骤，任选的研磨分级步骤和表面交联步骤，其中在表面交联步骤中，（1）将含有碳酸亚烃酯化合物和多元醇化合物的表面交联剂混合到吸水性树脂粉末中，与混合反应，进一步，同时或分开地混合，离子反应性表面交联剂混合，和/或（2）混合处理混合表面cr 将含有至少一种以上离子反应性表面交联剂的吸水性树脂粉末中的脱硫剂溶液进行两次以上。

5. 发明申请

US20140114035A1 METHOD AND APPARATUS FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN 有权
标题翻译：生产聚丙烯酸（盐） - 水吸收树脂的方法和装置
公开(公告)号：US20140114035A1
公开(公告)日：2014-04-24
申请号：US14112774
申请日：2012-04-20
申请人： Kozo Nogi , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Satoshi Matsumoto
发明人： Kozo Nogi , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Satoshi Matsumoto
IPC分类号： C08F2/18
CPC分类号： C08F2/18 , C08F220/06 , C08J3/12 , C08J2333/02
摘要： The purpose of the present invention is to provide a method for producing a water absorbent resin in which a water absorbent resin having excellent properties can be obtained effectively. The present invention relates to a method for producing a polyacrylic acid (salt)-based water absorbent resin, which includes a polymerization step of polymerizing an aqueous monomer solution containing a polymerization inhibitor, acrylic acid (salt) and an internal cross-linking agent to produce a water-containing gel-like cross-linked polymer, a gel-crushing step of performing the gel-crushing of the water-containing gel-like cross-linked polymer simultaneously with or subsequent to the polymerization to produce a particulate water-containing gel-like cross-linked polymer, and a drying step of supplying the particulate water-containing gel-like cross-linked polymer to a continuous through-flow belt-type dryer by a traverse conveyor to dry the particulate water-containing gel-like cross-linked polymer, in which the belt temperature of the traverse conveyor is 40 to 120° C. and/or the water soluble component in the particulate water-containing gel-like cross-linked polymer on the traverse conveyor is 10% by weight or less and the water soluble component is increased after the drying step.
摘要翻译：本发明的目的是提供一种可以有效获得具有优异性能的吸水性树脂的吸水性树脂的制造方法。本发明涉及一种聚丙烯酸（盐）系吸水性树脂的制造方法，其包括将含有聚合抑制剂，丙烯酸（盐）和内部交联剂的单体水溶液聚合的聚合工序，产生含水凝胶状交联聚合物，在聚合反应或聚合后同时进行凝胶状破碎的凝胶状破碎工序，制成含水凝胶状交联聚合物凝胶状交联聚合物，以及通过横动输送机将含粒状含水凝胶状交联聚合物供给到连续流通带式干燥机的干燥工序，干燥含水凝胶状的颗粒状凝胶状横向传送带的带温度为40〜120℃的交联聚合物和/或该混合物中的颗粒状含水凝胶状交联聚合物中的水溶性成分惰性输送机为10重量％以下，干燥后水溶性成分增加。

6. 发明授权

US09580519B2 Method and apparatus for producing polyacrylic acid (salt)-based water absorbent resin 有权
标题翻译：用于生产聚丙烯酸（盐）的吸水树脂的方法和设备
公开(公告)号：US09580519B2
公开(公告)日：2017-02-28
申请号：US14112774
申请日：2012-04-20
申请人： Kozo Nogi , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Satoshi Matsumoto
发明人： Kozo Nogi , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Satoshi Matsumoto
IPC分类号： H01B1/00 , C08F2/18 , C08F220/06 , C08J99/00 , C08J3/12
CPC分类号： C08F2/18 , C08F220/06 , C08J3/12 , C08J2333/02
摘要： The purpose of the present invention is to provide a method for producing a water absorbent resin in which a water absorbent resin having excellent properties can be obtained effectively. The present invention relates to a method for producing a polyacrylic acid (salt)-based water absorbent resin, which includes a polymerization step of polymerizing an aqueous monomer solution containing a polymerization inhibitor, acrylic acid (salt) and an internal cross-linking agent to produce a water-containing gel-like cross-linked polymer, a gel-crushing step of performing the gel-crushing of the water-containing gel-like cross-linked polymer simultaneously with or subsequent to the polymerization to produce a particulate water-containing gel-like cross-linked polymer, and a drying step of supplying the particulate water-containing gel-like cross-linked polymer to a continuous through-flow belt-type dryer by a traverse conveyor to dry the particulate water-containing gel-like cross-linked polymer, in which the belt temperature of the traverse conveyor is 40 to 120° C. and/or the water soluble component in the particulate water-containing gel-like cross-linked polymer on the traverse conveyor is 10% by weight or less and the water soluble component is increased after the drying step.
摘要翻译：本发明的目的是提供一种可以有效获得具有优异性能的吸水性树脂的吸水性树脂的制造方法。本发明涉及一种聚丙烯酸（盐）系吸水性树脂的制造方法，其包括将含有聚合抑制剂，丙烯酸（盐）和内部交联剂的单体水溶液聚合的聚合工序，产生含水凝胶状交联聚合物，在聚合反应或聚合后同时进行凝胶状破碎的凝胶状破碎工序，制成含水凝胶状交联聚合物凝胶状交联聚合物，以及通过横动输送机将含粒状含水凝胶状交联聚合物供给到连续流通带式干燥机的干燥工序，干燥含水凝胶状的颗粒状凝胶状横向传送带的带温度为40〜120℃的交联聚合物和/或该混合物中的颗粒状含水凝胶状交联聚合物中的水溶性成分惰性输送机为10重量％以下，干燥后水溶性成分增加。

7. 发明授权

US09962680B2 Polyacrylic acid (salt)-based water absorbent resin, and method for production thereof 有权
公开(公告)号：US09962680B2
公开(公告)日：2018-05-08
申请号：US13994871
申请日：2011-12-16
申请人： Satoshi Matsumoto , Kunihiko Ishizaki , Kanako Tsuru
发明人： Satoshi Matsumoto , Kunihiko Ishizaki , Kanako Tsuru
IPC分类号： B01J20/26 , B01J20/28 , B01J20/30 , A61L15/60 , C08F220/06 , C08F222/10
CPC分类号： B01J20/261 , A61L15/60 , B01J20/28014 , B01J20/3092 , C08F220/06 , C08F222/1006 , C08L33/02
摘要： Provided is a method for producing a polyacrylic acid (salt)-based water absorbent resin, which is a convenient production method for a water absorbent resin for an absorbent suitable for practical use, the water absorbent resin having a reduced amount of residual monomers. Disclosed is a method for producing a polyacrylic acid (salt)-based water absorbent resin, the method comprising a polymerization step of polymerizing an aqueous monomer solution containing acrylic acid (salt) as a main component; a drying step of drying a water-containing gel-like crosslinked polymer obtained in the polymerization step; a surface crosslinking step of surface crosslinking the water absorbent resin under drying or the water absorbent resin which has been dried; and a packaging step of packaging the surface crosslinked water absorbent resin, wherein an iron content in the aqueous monomer solution in the polymerization step is 2 ppm (relative to the monomer(s)) or less, a moisture content of the water absorbent resin in the packaging step is 1% by weight or more, and the method further comprises, after the packaging step, a storage step of storing the packaged water absorbent resin for 3 days or longer.

8. 发明授权

US09272068B2 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：US09272068B2
公开(公告)日：2016-03-01
申请号：US13634167
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： C08J3/12 , A61L15/56 , A61L15/60 , 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; and 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. In the process, the drying step is interrupted with a dryer kept in a heated state and thereafter the drying 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; 以及干燥步骤，在聚合过程中或聚合后，在细碎的步骤中得到颗粒状的含水凝胶状交联聚合物。在该过程中，干燥步骤被保持在加热状态的干燥器中断，然后重新开始干燥步骤。

9. 发明申请

US20130005926A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
标题翻译：生产吸水树脂的方法
公开(公告)号：US20130005926A1
公开(公告)日：2013-01-03
申请号：US13634167
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： C08F120/06
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; and 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. In the process, the drying step is interrupted with a dryer kept in a heated state and thereafter the drying 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; 以及干燥步骤，在聚合过程中或聚合后，在细碎的步骤中得到颗粒状的含水凝胶状交联聚合物。在该过程中，干燥步骤被保持在加热状态的干燥器中断，然后重新开始干燥步骤。

10. 发明申请

US20130005904A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
标题翻译：生产吸水树脂的方法
公开(公告)号：US20130005904A1
公开(公告)日：2013-01-03
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： C08F20/06
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。

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