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1. 发明申请

WO2006109844A1 PARTICULATE WATER ABSORBING AGENT, WATER-ABSORBENT CORE AND ABSORBING ARTICLE 审中-公开
标题翻译：颗粒吸水剂，吸水芯和吸收制品
公开(公告)号：WO2006109844A1
公开(公告)日：2006-10-19
申请号：PCT/JP2006/307795
申请日：2006-04-06
申请人： NIPPON SHOKUBAI CO., LTD. , NAKASHIMA, Yasuhisa , TAKAAI, Toshihiro , WADA, Katsuyuki
发明人： NAKASHIMA, Yasuhisa , TAKAAI, Toshihiro , WADA, Katsuyuki
IPC分类号： C08L33/02 , A61F13/49 , A61F13/53 , A61L15/60
CPC分类号： A61L15/60 , Y10T428/2982
摘要： The present invention provides a particulate water absorbing agent for absorbent cores which is excellent in powder conveying property, and achieves sufficient absorption performances for use in absorbent cores in particulate water absorbing agents including a water absorbing resin as a principal component, and which further is suitable for practical applications. In the present invention, characteristics that had not been known conventionally at all, i.e., "permeability potential under pressure (PPUP)" and "frictional charge being a positive charge" of the particulate water absorbing agent are regulated at a time, and furthermore, regulation of the "moisture content of 2 to 10% by weight" is perfected. Also, the particulate water absorbing agent including (A) a water-swelling crosslinked polymer having a constitutional unit derived from an unsaturated monomer containing an acid group and/or a salt thereof; and (B) water fulfills certain requirements.
摘要翻译：本发明提供一种吸收芯粒状吸水剂，其粉末输送性优异，在吸水性树脂作为主要成分的颗粒状吸水剂的吸收芯中，具有充分的吸收性能，并且还适合适用于实际应用。在本发明中，一次调整了传统上已知的特征，即“压力下的渗透势（PPUP）”和“微粒吸收剂的摩擦带电为正电荷”，此外， “含水量为2〜10重量％”的调节得到了完善。另外，含有（A）具有衍生自含有酸基的不饱和单体的结构单元的水溶胀性交联聚合物和/或其盐的颗粒状吸水剂，和（B）水符合一定的要求。

2. 发明授权

EP2261265B8 METHOD OF MANUFACTURING PARTICULATE WATER ABSORBENT WITH WATER-ABSORBENT RESIN AS MAIN INGREDIENT, AND MANUFACTURING APPARATUS THEREFOR 有权
标题翻译：以吸水性树脂为主要成分制造颗粒状吸水剂的方法及其制造装置
公开(公告)号：EP2261265B8
公开(公告)日：2013-08-21
申请号：EP09729128.0
申请日：2009-03-31
申请人： Nippon Shokubai Co., Ltd.
发明人： TAKAAI, Toshihiro , DAIROKU, Yorimichi , FUJINO, Shinichi
IPC分类号： C08F2/10 , C08F20/04 , B01J19/00 , C07C51/41 , C07C51/50 , A61L15/60 , C08F20/06 , C08F2/48 , C08J3/24
CPC分类号： C08J3/245 , A61L15/60 , B01J19/0086 , B01J2219/00006 , C07C51/41 , C07C51/50 , C08F2/10 , C08F2/48 , C08F20/06 , C08F220/06 , C08F222/1006 , C08J2333/02 , Y10T137/4673 , Y10T137/469 , Y10T137/86187

3. 发明授权

EP2518092B1 WATER-ABSORBABLE POLYACRYLIC ACID RESIN POWDER, AND PROCESS FOR PRODUCTION THEREOF 有权
标题翻译：一种水聚丙烯酸树脂粉末和方法及其
公开(公告)号：EP2518092B1
公开(公告)日：2017-03-15
申请号：EP10839528.6
申请日：2010-12-23
申请人： Nippon Shokubai Co., Ltd.
发明人： NAKATSURU, Reiko , SAKAMOTO, Shigeru , TORII, Kazushi , TAKAAI, Toshihiro
IPC分类号： C08F20/06 , C08J3/12 , A61L15/60 , C08F220/06
CPC分类号： C08J3/12 , A61L15/48 , A61L15/60 , C08F20/06 , C08F220/06 , C08J2333/08 , C08J2333/10 , C08L33/02

4. 发明授权

EP2261265B1 METHOD OF MANUFACTURING PARTICULATE WATER ABSORBENT WITH WATER-ABSORBENT RESIN AS MAIN INGREDIENT, AND MANUFACTURING APPARATUS THEREFOR 有权
标题翻译：用于生产颗粒吸水WITH吸水性树脂ALS HAUTPINHALTSSTOFF与制造装置THEREFOR
公开(公告)号：EP2261265B1
公开(公告)日：2013-05-08
申请号：EP09729128.0
申请日：2009-03-31
申请人： Nippon Shokubai Co., Ltd.
发明人： TAKAAI, Toshihiro , DAIROKU, Yorichimi , FUJINO, Shinichi
IPC分类号： C08F2/10 , C08F20/04 , B01J19/00 , C07C51/41 , C07C51/50 , A61L15/60 , C08F20/06 , C08F2/48 , C08J3/24
CPC分类号： C08J3/245 , A61L15/60 , B01J19/0086 , B01J2219/00006 , C07C51/41 , C07C51/50 , C08F2/10 , C08F2/48 , C08F20/06 , C08F220/06 , C08F222/1006 , C08J2333/02 , Y10T137/4673 , Y10T137/469 , Y10T137/86187

5. 发明公开

EP2189478A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜRWASSERABSORBIERENDES HARZ
公开(公告)号：EP2189478A1
公开(公告)日：2010-05-26
申请号：EP08828813.9
申请日：2008-08-27
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Makoto , TAKAAI, Toshihiro , DAIROKU, Yorimichi , FUJINO, Shinichi , MATSUMOTO, Satoshi , KATO, Seiji
IPC分类号： C08F6/00 , C08F20/04
CPC分类号： C08F6/008 , C08F20/06 , C08J3/12 , C08J3/126 , C08J3/245 , C08J2300/14 , F26B3/08
摘要： Drying is performed in a continuous fluidized bed having at least two drying rooms. Drying is performed after pulverization is performed between drying in a first drying room and drying in a second or subsequent room. Drying is performed in a continuous fluidized bed whose fluidized bed contains a heat transfer tube. The second or subsequent drying room has a higher drying temperature than the first drying room. Drying is performed with the drying temperature of the first drying room falling within a range of not less than 80°C to not more than 200°C and with the drying temperature of the second or subsequent drying room falling within a range of not less than 100°C to not more than 220°C. Further, a method for producing a water absorbent resin includes: a sequence of the steps of: (1) polymerizing a monomer aqueous solution; (2) drying a hydrogel polymer obtained in the step (1); (3) performing particle size control by either pulverizing or pulverizing and classifying a dry polymer obtained in the step (2); and (5) performing surface crosslinking on water absorbent resin powder whose particle size has been controlled in the step (3), the method further including the step (4) of performing second heat drying on the water absorbent resin powder whose particle size has been controlled in the step (3), the step (4) preceding the step (5). Further, the water absorbent resin has a moisture content (defined by a loss on drying performed for three hours at 180°C) of 0 wt% to 3 wt% before it is supplied to the step (5). (This makes it possible to provide a method for producing a water absorbent resin which method makes it possible to obtain a particulate water absorbent resin of excellent properties at low cost with high productivity.
摘要翻译：干燥在具有至少两个干燥室的连续流化床中进行。在第一干燥室中干燥之后进行粉碎并在第二或随后的室中进行干燥之后进行干燥。干燥在连续流化床中进行，其流化床含有传热管。第二干燥室或干燥室的干燥温度比第一干燥室高。第一干燥室的干燥温度在80℃以上且200℃以下的干燥温度下进行干燥，第二干燥室的干燥温度落在不小于 100℃至220℃以下。此外，吸水性树脂的制造方法包括：（1）聚合单体水溶液的步骤的顺序; （2）干燥步骤（1）中获得的水凝胶聚合物; （3）通过对步骤（2）中获得的干燥聚合物进行粉碎或粉碎和分级来进行粒度控制; 和（5）在步骤（3）中对其粒径进行了控制的吸水性树脂粉末进行表面交联，该方法还包括对粒径已经达到的吸水性树脂粉末进行第二加热干燥的步骤（4）在步骤（3）中控制的步骤（4），步骤（5）之前的步骤（4）。此外，吸水性树脂在向步骤（5）供给之前具有0重量％〜3重量％的含水量（在180℃下进行干燥3小时的损失）。（这使得可以提供一种制造吸水性树脂的方法，该方法可以以低成本，高生产率获得具有优异性能的颗粒状吸水性树脂。

6. 发明公开

EP2518092A1 WATER-ABSORBABLE POLYACRYLIC ACID RESIN POWDER, AND PROCESS FOR PRODUCTION THEREOF 有权
标题翻译：一种水聚丙烯酸树脂粉末和方法及其
公开(公告)号：EP2518092A1
公开(公告)日：2012-10-31
申请号：EP10839528.6
申请日：2010-12-23
申请人： Nippon Shokubai Co., Ltd.
发明人： NAKATSURU, Reiko , SAKAMOTO, Shigeru , TORII, Kazushi , TAKAAI, Toshihiro
IPC分类号： C08F20/06 , C08J3/12
CPC分类号： C08J3/12 , A61L15/48 , A61L15/60 , C08F20/06 , C08F220/06 , C08J2333/08 , C08J2333/10 , C08L33/02
摘要： A process according to the present invention for production of water-absorbable polyacrylic acid resin powder, including: (a) polymerizing an acrylic acid-based monomer aqueous solution containing bubbles, and (b) drying a hydrogel crosslinked polymer thus obtained in the step of polymerizing, further includes (c) lowering solubility of dissolved gas in a monomer aqueous solution in the presence of a surfactant and/or a dispersing agent, so as to generate the bubbles in the acrylic acid-based monomer aqueous solution. With this arrangement, it is possible to provide white water-absorbable resin with better water absorbing rate, keeping or without significantly losing the other properties (permeability potential, bulk specific gravity, surface tension, absorbency against pressure, impact resistance, etc.)

7. 发明授权

EP1874863B1 PARTICULATE WATER ABSORBING AGENT, WATER-ABSORBENT CORE AND ABSORBING ARTICLE 有权
标题翻译：颗粒吸水，水吸收核心和吸收性物品
公开(公告)号：EP1874863B1
公开(公告)日：2010-03-03
申请号：EP06731731.3
申请日：2006-04-06
申请人： NIPPON SHOKUBAI CO., LTD.
发明人： NAKASHIMA, Yasuhisa , TAKAAI, Toshihiro , WADA, Katsuyuki
IPC分类号： C08L33/02 , A61F13/49 , A61F13/53 , A61L15/60
CPC分类号： A61L15/60 , Y10T428/2982

8. 发明授权

EP2527390B1 METHOD FOR PRODUCING WATER ABSORBENT RESIN 有权
公开(公告)号：EP2527390B1
公开(公告)日：2020-08-12
申请号：EP11734735.1
申请日：2011-01-20
申请人： Nippon Shokubai Co., Ltd.
发明人： TAKAAI, Toshihiro , FUJINO, Shinichi , WADA, Hidenori
IPC分类号： C08J3/12 , B01J20/26 , A61L15/56 , A61L15/60 , C08F6/00 , C08J3/075

9. 发明授权

EP2589613B1 POLYACRYLIC ACID-BASED WATER-ABSORBING RESIN AND PROCESS FOR PRODUCING SAME 有权
标题翻译：吸水性树脂基于聚丙烯酸，及其制造方法
公开(公告)号：EP2589613B1
公开(公告)日：2015-05-13
申请号：EP11800917.4
申请日：2011-06-29
申请人： Nippon Shokubai Co., Ltd.
发明人： TAKAAI, Toshihiro , WADA, Hidenori , FUJINO, Shinichi
IPC分类号： C08F20/06 , C08J3/12 , C08J9/12 , C08F220/06 , A61L15/60
CPC分类号： C08J9/122 , A61L15/24 , A61L15/60 , C08F2/01 , C08F20/00 , C08F220/06 , C08J3/245 , C08J9/20 , C08J9/36 , C08J2203/06 , C08J2205/05 , C08J2333/02 , C08J2335/02 , Y10T428/2982 , C08L33/02 , C08F2222/1013

10. 发明公开

EP2589613A1 POLYACRYLIC ACID-BASED WATER-ABSORBING RESIN AND PROCESS FOR PRODUCING SAME 有权
标题翻译： WASSERABSORBIERENDES HARZ AUFPOLYACRYLSÄUREBASISSOWIE HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2589613A1
公开(公告)日：2013-05-08
申请号：EP11800917.4
申请日：2011-06-29
申请人： Nippon Shokubai Co., Ltd.
发明人： TAKAAI, Toshihiro , WADA, Hidenori , FUJINO, Shinichi
IPC分类号： C08F20/06 , C08J3/12 , C08J9/12
CPC分类号： C08J9/122 , A61L15/24 , A61L15/60 , C08F2/01 , C08F20/00 , C08F220/06 , C08J3/245 , C08J9/20 , C08J9/36 , C08J2203/06 , C08J2205/05 , C08J2333/02 , C08J2335/02 , Y10T428/2982 , C08L33/02 , C08F2222/1013
摘要： Provided is a method for producing a water absorbent resin, which promotes the formation of interconnected voids (continuous gas bubbles) in a foamed polymer (foam-like water absorbent resin) by a more convenient method, and produces with high efficiency a water absorbent resin which exhibits a high water absorption rate even when stepped into a sheet form or a powder form in hygiene articles and the like. Disclosed is a a method for producing a polyacrylic acid-type water absorbent resin, comprising (A) a step of obtaining an aqueous solution of acrylic acid-type monomers containing gas bubbles dispersed therein; (B) a step of polymerizing the aqueous monomer solution and thereby obtaining a foamed polymer; and (C) a step of heating and drying the foamed polymer,
wherein gas bubbles are incorporated such that the volumetric expansion factor defined by the following formula (1);
[Formula 1]

exceeds 1.1 times, and the aqueous monomer solution having a monomer concentration defined by the following formula (2) ;
[Formula 2]

of 40% by weight or greater is boiling temperature of 100°C or higher.
摘要翻译：提供了一种通过更方便的方法促进发泡聚合物（泡沫状吸水性树脂）中形成互连空隙（连续气泡）的吸水性树脂的制造方法，并且以高效率生产吸水性树脂即使在卫生用品等中成片状或粉末状时，也显示出高的吸水率。本发明提供一种聚丙烯酸型吸水性树脂的制造方法，其特征在于，包括：（A）获得含有分散在其中的气泡的丙烯酸型单体的水溶液的工序; （B）使单体水溶液聚合，得到发泡聚合物的工序; 和（C）加热和干燥发泡聚合物的步骤，其中加入气泡，使得由下式（1）定义的体积膨胀系数; [式1]超过1.1倍，单体浓度由下式（2）定义; [式2]为40重量％以上的沸点温度为100℃以上。

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