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1. 发明授权

US08907021B2 Polyacrylic acid (salt)-type water absorbent resin and method for producing of same 有权
标题翻译：聚丙烯酸（盐）型吸水性树脂及其制造方法
公开(公告)号：US08907021B2
公开(公告)日：2014-12-09
申请号：US13392639
申请日：2010-08-27
申请人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
发明人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F2/01
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-crosslinking 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：公开了一种生产吸水性树脂的方法，通过该方法可以以低成本有效地获得具有优异物理性能的表面交联吸水性树脂，同时确保高生产率。当生产规模增加到1t / hr以上的连续生产时，通过表面交联处理改善和稳定物理性能（例如物理性能的标准偏差），并且抗压力（AAP）和液体渗透性（SFC）进一步提高。具体公开了一种吸水性树脂的制造方法，其特征在于，表面交联剂的连续混合装置的搅拌轴在表面交联剂的混合工序中被加热，表面交联剂在相对于环境压力降低的压力下操作，并且在混合表面交联剂期间气流通过混合装置，使得混合装置中的气流为40℃ 或更多（当相对于出口处的气体温度定义时）。

2. 发明授权

US08772413B2 Polyacrylic acid (salt)-type water absorbent resin and method for producing of same 有权
公开(公告)号：US08772413B2
公开(公告)日：2014-07-08
申请号：US13392639
申请日：2010-08-27
申请人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
发明人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F2/01
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-crosslinking 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).

3. 发明申请

US20120157625A1 POLYACRYLIC ACID (SALT)-TYPE WATER ABSORBENT RESIN AND METHOD FOR PRODUCING OF SAME 有权
标题翻译：聚丙烯酸（盐）型吸水树脂及其制造方法
公开(公告)号：US20120157625A1
公开(公告)日：2012-06-21
申请号：US13392639
申请日：2010-08-27
申请人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
发明人： Takahiro Kitano , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F2/01 , C08F20/06
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-crosslinking 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：公开了一种生产吸水性树脂的方法，通过该方法可以以低成本有效地获得具有优异物理性能的表面交联吸水性树脂，同时确保高生产率。当生产规模增加到1t / hr以上的连续生产时，通过表面交联处理改善和稳定物理性能（例如物理性能的标准偏差），并且抗压力（AAP）和液体渗透性（SFC）进一步提高。具体公开了一种吸水性树脂的制造方法，其特征在于，表面交联剂的连续混合装置的搅拌轴在表面交联剂的混合工序中被加热，表面交联剂在相对于环境压力降低的压力下操作，并且在混合表面交联剂期间使气流通过混合装置，使得混合装置中的气流为40℃ 或更多（当相对于出口处的气体温度定义时）。

4. 发明授权

US09453091B2 Method of producing water absorbent resin 有权
标题翻译：生产吸水性树脂的方法
公开(公告)号：US09453091B2
公开(公告)日：2016-09-27
申请号：US13635045
申请日：2011-03-17
申请人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
发明人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
IPC分类号： A61L15/24 , C08F120/06 , C08F220/06 , C08J3/24 , B07B1/56 , C08F6/00 , B07B13/16 , G01N15/02 , B07B1/28
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： A method for producing a water absorbent resin, the method including a polymerization step, a drying step, a classification step, and a surface crosslinking step. The classification step carried out before or after the surface crosslinking step requires use of a metal sieve mesh having stretch tension from 35 to 100 N/cm, in which an air jet cleaner or an air jet brush cleaner and plural tapping balls or tapping blocks are installed below the metal sieve mesh, a classification aid particle having specific gravity different from that of the water absorbent resin powder is added, and a fine powder of the water absorbent resin and the classification aid particle are removed.
摘要翻译：一种吸水性树脂的制造方法，其包括聚合工序，干燥工序，分级工序以及表面交联工序。在表面交联步骤之前或之后进行的分级步骤需要使用具有35至100N / cm的拉伸张力的金属筛网，其中空气喷射清洁器或空气喷射刷清洁器和多个敲击球或攻丝块是在金属筛网的下方，添加比重与吸水性树脂粉末不同的分级助剂粒子，除去吸水性树脂和分级助剂粒子的细粉末。

5. 发明授权

US08809475B2 Production method for water-absorbent resin 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：US08809475B2
公开(公告)日：2014-08-19
申请号：US13392909
申请日：2010-08-30
申请人： Koji Matsumoto , Kozo Nogi , Shinichi Fujino , Yorimichi Dairoku , Kunihiko Ishizaki
发明人： Koji Matsumoto , Kozo Nogi , Shinichi Fujino , Yorimichi Dairoku , Kunihiko Ishizaki
IPC分类号： C08F2/00 , C08F20/06
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： A production method for a water-absorbent resin, comprising a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction, and a drying step for drying the hydrogel, wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: [MATH. 1] Thickness variation rate (1)=(Maximum thickness of hydrogel in a width direction of the through-flow belt)/(Average thickness of hydrogel in a width direction of the through-flow belt). [EXPRESSION 1]
摘要翻译：一种吸水性树脂的制造方法，其特征在于，包括通过使单体水溶液进行聚合反应而得到水凝胶的聚合工序和干燥水凝胶的干燥工序，干燥工序中的干燥是使用连续通孔流动带式干燥机中，提供给干燥步骤的水凝胶的固体含量为35重量％以上，并且由下述表达式1表示的厚度变化率（1）表示为加载到通气带中的水凝胶连续通流带，为1.05〜5：[MATH。 1]厚度变化率（1）=（贯穿流动带的宽度方向的水凝胶的最大厚度）/（贯通带的宽度方向的水凝胶的平均厚度）。 [表达1]

6. 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。

7. 发明申请

US20100119312A1 PARTICULATE WATER ABSORBING AGENT AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：颗粒吸水剂及其制备方法
公开(公告)号：US20100119312A1
公开(公告)日：2010-05-13
申请号：US12593443
申请日：2008-03-28
申请人： Teruhisa Nagashima , Masatoshi Nakamura , Yusuke Watanabe , Kozo Nogi , Kunihiko Ishizaki
发明人： Teruhisa Nagashima , Masatoshi Nakamura , Yusuke Watanabe , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： B65G53/00 , A61K8/72
CPC分类号： C08J3/12 , A61L15/60 , B01J20/267 , B01J2220/68 , C08J2301/00 , C08J2303/00
摘要： A method includes the steps of: adding an organic surface cross-linking agent to a water absorbent resin having a cross-linked structure; adding a liquid permeability improving agent to the water absorbent resin concurrently with or after the addition of the organic surface cross-linking agent; and then adding a lubrication improving agent to the water absorbent resin. This provides a particulate water absorbing agent and a method for producing it, the particulate water absorbing agent being suitable for pneumatic transportation, suffering no decrease in the effect of the liquid permeability improving agent, and excelling in properties such as fluidity and damage resistance after the pneumatic transportation.
摘要翻译：一种方法包括以下步骤：向具有交联结构的吸水性树脂中加入有机表面交联剂; 在添加有机表面交联剂的同时或之后向吸水性树脂中加入透液性改进剂; 然后向吸水性树脂中添加润滑改善剂。这提供了一种颗粒状吸水剂及其制造方法，该颗粒状吸水剂适用于气动输送，不会降低透液性改善剂的作用，并且在其后的流动性和耐损伤性等性能方面优异气动运输。

8. 发明授权

US08802800B2 Production method for water-absorbent resin 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：US08802800B2
公开(公告)日：2014-08-12
申请号：US13392698
申请日：2010-08-30
申请人： Shinichi Fujino , Kozo Nogi , Kunihiko Ishizaki
发明人： Shinichi Fujino , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F2/00 , C08F20/06
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： A production method for a water-absorbent resin, comprising a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction, and a drying step for drying the hydrogel, wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine, the pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and the area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.
摘要翻译：一种吸水性树脂的制造方法，其特征在于，包括通过使单体水溶液进行聚合反应而得到水凝胶的聚合工序和干燥水凝胶的干燥工序，干燥工序中的干燥是使用连续通孔流式带式干燥机，连续通流式带式干燥机中通流带的开孔率为20〜50％，供给干燥工序的水凝胶的固体成分为35重量％以上，相对于贯流带，水凝胶的面积占有率为85〜100％。

9. 发明授权

US08791210B2 Polyacrylic water-absorbent resin powder and method for producing the same 有权
标题翻译：聚丙烯酸吸水性树脂粉末及其制造方法
公开(公告)号：US08791210B2
公开(公告)日：2014-07-29
申请号：US13201701
申请日：2010-02-17
申请人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
发明人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08C19/00 , C08F20/10 , C08F222/20 , C08F2/34 , C08F8/00
CPC分类号： C08C19/00 , C08F2/10 , C08F2/16 , C08F2/34 , C08F8/00 , C08F20/10 , C08F220/06 , C08F222/20
摘要： A method for producing a polyacrylic water-absorbent resin powder includes the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after polymerizing, fragmenting the resulting hydrated gel crosslinked polymer; and drying the fragmented hydrated gel crosslinked polymer, the gas being dissolved and/or dispersed in the monomer solution by (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; or (c) introducing the gas with the acrylic monomer solution via fine holes. The production method efficiently produces a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like.
摘要翻译：聚丙烯酸吸水性树脂粉末的制造方法包括以下工序：制造溶解和/或分散有气体的丙烯酸类单体溶液; 在不存在表面活性剂的情况下或在不超过300ppm表面活性剂的存在下聚合单体溶液; 在聚合期间或之后，将所得水合凝胶交联聚合物破碎; 并且通过（a）向丙烯酸单体溶液和气体施加压力，干燥碎裂的水合凝胶交联聚合物，气体溶解和/或分散在单体溶液中; （b）产生丙烯酸单体溶液和气体的旋流; 或（c）通过细孔将丙烯酸单体溶液引入气体。制造方法有效地制造吸水率优异的吸水性树脂，而不会降低卫生用品等的吸液性。

10. 发明申请

US20130123435A1 METHOD OF PRODUCING ABSORBENT RESIN 有权
标题翻译：生产吸收树脂的方法
公开(公告)号：US20130123435A1
公开(公告)日：2013-05-16
申请号：US13635045
申请日：2011-03-17
申请人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
发明人： Sumio Okuda , Syuji Kanzaki , Kunihiko Ishizaki , Shinichi Fujino , Kozo Nogi
IPC分类号： C08J3/24
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：提供了不需要改变原材料或高资本投资的方法，并且通过简单的技术提高和稳定吸水性树脂的物理性能（例如，透液性）。公开了一种吸水性树脂的制造方法，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; 干燥步骤，干燥含水凝胶状交联聚合物以获得吸水性树脂粉末; 吸水性树脂粉末的分类步骤; 和表面交联吸水性树脂粉末的表面交联步骤，其中在表面交联步骤之前和/或表面交联步骤之后承载的分级步骤中，所用的金属筛网的拉伸张力（张力）分级步骤为35 [N / cm]至100 [N / cm]。

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