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1. 发明授权

EP2546284B1 METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN 有权
公开(公告)号：EP2546284B1
公开(公告)日：2019-07-10
申请号：EP11753510.4
申请日：2011-03-14
申请人： Nippon Shokubai Co., Ltd.
发明人： KANZAKI, Syuji , OKUDA, Sumio , ISHIZAKI, Kunihiko , MATSUMOTO, Satoshi
IPC分类号： C08J3/12 , B01J20/26 , A61L15/56 , A61L15/60 , C08F6/00 , C08J3/24

2. 发明授权

EP2484702B1 POLYACRYLIC ACID SALT-BASED WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME 有权
标题翻译：吸水性树脂基于用于PRODUCING聚丙烯AND PROCESS
公开(公告)号：EP2484702B1
公开(公告)日：2015-12-02
申请号：EP10820690.5
申请日：2010-09-30
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , ISHIZAKI, Kunihiko , TORII, Kazushi , FUJINO, Shin-ichi , SAKAMOTO, Kazuhiko
IPC分类号： C08F20/06 , C08F2/00 , C08F6/12
CPC分类号： C08F20/06 , B01J2219/00006 , C08J3/245 , C08J2333/02 , Y10T428/31859

3. 发明公开

EP2700667A1 PROCESS AND APPARATUS FOR PRODUCING WATER-ABSORBABLE RESIN OF POLYACRYLIC ACID (SALT) TYPE 有权
标题翻译：的方法和设备用于生产吸水性树脂与聚丙烯酸或它们的盐
公开(公告)号：EP2700667A1
公开(公告)日：2014-02-26
申请号：EP12774205.4
申请日：2012-04-20
申请人： Nippon Shokubai Co., Ltd.
发明人： NOGI, Kozo , KANZAKI, Syuji , ISHIZAKI, Kunihiko , FUJINO, Shinichi , MATSUMOTO, Satoshi
IPC分类号： C08J3/12 , A61F13/49 , A61F13/53
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生产的吸水性树脂，其中具有优良性能的吸水性树脂可以有效地获得提供的方法。本发明涉及一种方法用于生产聚丙烯酸（盐）系吸水性树脂，其包括在wässrige单体溶液聚合含有聚合抑制剂，丙烯酸（盐）的聚合步骤和内部交联剂的至产生含水凝胶状交联聚合物，同时或之后向聚合进行含水凝胶状交联聚合物的凝胶破碎的凝胶粉碎步骤，以产生颗粒状含水凝胶状交联聚合物，并且通过横动输送供给到连续通流带式干燥器中的含水颗粒凝胶状交联聚合物的干燥步骤，以干燥的含水凝胶状颗粒交联的聚合物，其中，横动输送机的带温度为40至120℃和/或在所述TRAVER颗粒状含水凝胶状交联聚合物中的水可溶性成分本身输送机是10％（重量）或更少和水溶性组分在干燥步骤之后增加。

4. 发明公开

EP2669318A1 MANUFACTURING METHOD FOR POLYACRYLIC ACID (SALT) -BASED WATER-ABSORBENT RESIN POWDER 审中-公开
标题翻译：聚丙烯酸（盐）基吸水树脂粉的制造方法
公开(公告)号：EP2669318A1
公开(公告)日：2013-12-04
申请号：EP12738970.8
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 , KIMURA, Kazuki , MACHIDA, Sayaka
IPC分类号： C08J3/24 , C08F20/06 , C08J3/12 , C08L33/02
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：从表面交联后的规格以外的产品减少的观点考虑，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，需要减少生成的乙二醇作为副产物，提供了一种生产聚丙烯酸（盐）基吸水树脂粉末的方法，该方法包括聚合丙烯酸（盐）水基单体水溶液的步骤，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）将包含亚烷基碳酸酯化合物和多元醇化合物的表面交联剂混入吸水树脂粉末中，混合物加热与混合物同时或分开混合离子反应性表面交联剂，和/或（2）混合表面的混合处理交联剂溶液加入含有至少一种或多种离子反应性表面交联剂的吸水树脂粉末中两次或多次。

5. 发明公开

EP2546284A1 METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN 审中-公开
标题翻译：制造吸水树脂的方法
公开(公告)号：EP2546284A1
公开(公告)日：2013-01-16
申请号：EP11753510.4
申请日：2011-03-14
申请人： Nippon Shokubai Co., Ltd.
发明人： KANZAKI, Syuji , OKUDA, Sumio , ISHIZAKI, Kunihiko , MATSUMOTO, Satoshi
IPC分类号： C08J3/12 , B01J20/26 , C08F6/00
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 method for manufacturing a water-absorbing resin includes: a polymerization step in which an unsaturated monomer in an aqueous solution is polymerized; a drying step in which a water-containing cross-linked granular polymer gel, obtained in a microgranulation step during or after polymerization, is dried; a post-drying pulverization step; a post-drying sorting step; and a surface-treatment step, after the sorting step, in which a waster-absorbing resin powder is subjected to a surface treatment. Said method is characterized in that the surface-treatment step is halted, with a heat-treatment machine kept hot, and then subsequently restarted.
摘要翻译：所公开的用于制造吸水树脂的方法包括：使水溶液中的不饱和单体聚合的聚合步骤; 干燥步骤，其中将在聚合期间或聚合后的微粒化步骤中获得的含水交联粒状聚合物凝胶干燥; 干燥后粉碎步骤; 干燥后分拣步骤; 和分选步骤之后的表面处理步骤，其中对吸收了废水的树脂粉末进行表面处理。所述方法的特征在于表面处理步骤停止，热处理机器保持热，然后重新启动。

6. 发明公开

EP4338832A1 POLY(METH)ACRYLIC ACID (SALT) WATER-ABSORBING RESIN AND ABSORBENT ARTICLE 审中-公开
公开(公告)号：EP4338832A1
公开(公告)日：2024-03-20
申请号：EP22807425.8
申请日：2022-05-09
申请人： Nippon Shokubai Co., Ltd.
发明人： TSURU, Kanako , MATSUMOTO, Satoshi , KITABATA, Sachie
IPC分类号： B01J20/26 , B01J20/28 , B01J20/30 , C08F2/18 , C08F20/06 , C08J3/12
摘要： An object lies in providing a water-absorbing resin capable of absorbing body fluids in a wide viscosity range from a body fluid having a low viscosity to a body fluid having a high viscosity, while maintaining water absorption capacity and water absorption speed. Used is a polyacrylic acid (salt)-based water-absorbing resin having: a free swell rate (A) with respect to an aqueous polyethylene oxide solution of 40°C of 0.15 g·g -1 ·s -1 or more; a free swell rate (B) with respect to a physiological saline of 40°C of 0.40 g·g -1 ·s -1 or more; and a free swell rate (A)/free swell rate (B) of 0.20 or more.

7. 发明公开

EP3795614A1 WATER ABSORBENT RESIN POWDER, AND PRODUCTION METHOD THEREFOR 审中-公开
公开(公告)号：EP3795614A1
公开(公告)日：2021-03-24
申请号：EP19803772.3
申请日：2019-05-16
申请人： Nippon Shokubai Co., Ltd.
发明人： YORINO, Tsuyoshi , KATAKURA, Naoki , HAYASHI, Hiroki , KUMAGAI, Sumito , INOUE, Masahumi , ARAKE, Tomoyuki , SATO, Mai , WAKABAYASHI, Ryota , SHOBO, Yoshihiro , KATSUBE, Shin-ya , ADACHI, Yoshifumi , MATSUMOTO, Satoshi
IPC分类号： C08J3/12
摘要： The present invention addresses the problem of providing: a water absorbent resin powder having a reduced amount of fine powder generated and a reduced amount of fine powder recovered; and a production method for the water absorbent resin. The production method of the present invention includes a drying step and a fine powder granulation step. The drying step is for obtaining a dried polymer by drying a particulate water-containing gel crosslinked polymer which is obtained using an acid group-containing unsaturated monomer as a main component. The fine powder granulation step is for obtaining a fine powder granulated product by adding a binder and an adhesion control agent to a fine powder made of a water absorbent resin. In this production method, the obtained fine powder granulated product is recovered in the drying step or in any step before the drying step.

8. 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

9. 发明授权

EP2669319B1 MANUFACTURING METHOD FOR POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBENT RESIN POWDER 有权
公开(公告)号：EP2669319B1
公开(公告)日：2020-01-15
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

10. 发明授权

EP2565211B1 POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME 有权
标题翻译：聚丙烯酸（盐），聚丙烯酸（盐）类吸水性树脂及其制造方法
公开(公告)号：EP2565211B1
公开(公告)日：2017-10-25
申请号：EP11775018.2
申请日：2011-04-26
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , MIURA, Yuki , ISHIZAKI, Kunihiko , ADACHI, Yoshifumi
IPC分类号： C08F220/06
CPC分类号： C08F220/06 , B01J20/261 , B01J20/3085

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