公开(公告)号：US20110166300A1

公开(公告)日：2011-07-07

申请号：US13061581

申请日：2009-09-11

申请人： Yorimichi Dairoku ,  Kozo Nogi ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Koji Matsumoto ,  Yoshiro Mitsukami

发明人： Yorimichi Dairoku ,  Kozo Nogi ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Koji Matsumoto ,  Yoshiro Mitsukami

IPC分类号： C08F8/14

CPC分类号： C08F20/06 ,  C08F6/003 ,  C08F6/02 ,  C08F220/06 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08L33/02

摘要： A method for the production of a water-absorbing resin is to be provided which permits enhancement and stabilization of property, for example, liquid permeability, of a water-absorbing resin by a simple and convenient method without requiring change of raw materials or expensive facility investment. The method comprises a polymerization step for polymerizing an aqueous solution of acrylic acid (or salt thereof) to obtain a hydrogel cross-linked polymer; a drying step for drying the hydrogel cross-linked polymer to obtain a water-absorbing resin powder; a classification step for classifying the water-absorbing resin powder; and a surface cross-linking step for surface cross-linking the water-absorbing resin powder before or after the classification step, wherein electricity is eliminated in the classification step.

摘要翻译： 提供一种制造吸水性树脂的方法，其通过简单方便的方法可以提高和稳定吸水性树脂的性能，例如透液性，而不需要改变原料或昂贵的设备 投资。 该方法包括聚合丙烯酸（或其盐）水溶液以获得水凝胶交联聚合物的聚合步骤; 用于干燥水凝胶交联聚合物以获得吸水性树脂粉末的干燥步骤; 用于分类吸水性树脂粉末的分级步骤; 以及在分级步骤之前或之后使吸水性树脂粉末表面交联的表面交联步骤，其中在分级步骤中消除电。

公开(公告)号：US08436090B2

公开(公告)日：2013-05-07

申请号：US13061581

申请日：2009-09-11

申请人： Yorimichi Dairoku ,  Kozo Nogi ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Koji Matsumoto ,  Yoshiro Mitsukami

发明人： Yorimichi Dairoku ,  Kozo Nogi ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Koji Matsumoto ,  Yoshiro Mitsukami

IPC分类号： C08F220/06 ,  C08F20/06 ,  C08F8/14 ,  C08G63/60

CPC分类号： C08F20/06 ,  C08F6/003 ,  C08F6/02 ,  C08F220/06 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08L33/02

摘要： A method for the production of a water-absorbing resin is to be provided which permits enhancement and stabilization of property, for example, liquid permeability, of a water-absorbing resin by a simple and convenient method without requiring change of raw materials or expensive facility investment. The method comprises a polymerization step for polymerizing an aqueous solution of acrylic acid (or salt thereof) to obtain a hydrogel cross-linked polymer; a drying step for drying the hydrogel cross-linked polymer to obtain a water-absorbing resin powder; a classification step for classifying the water-absorbing resin powder; and a surface cross-linking step for surface cross-linking the water-absorbing resin powder before or after the classification step, wherein electricity is eliminated in the classification step.

摘要翻译： 提供一种制造吸水性树脂的方法，其通过简单方便的方法可以提高和稳定吸水性树脂的性能，例如透液性，而不需要改变原料或昂贵的设备 投资。 该方法包括聚合丙烯酸（或其盐）水溶液以获得水凝胶交联聚合物的聚合步骤; 用于干燥水凝胶交联聚合物以获得吸水性树脂粉末的干燥步骤; 用于分类吸水性树脂粉末的分级步骤; 以及在分级步骤之前或之后使吸水性树脂粉末表面交联的表面交联步骤，其中在分级步骤中消除电。

公开(公告)号：US20120157648A1

公开(公告)日：2012-06-21

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： C08F220/06

CPC分类号： C08J3/12 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02

摘要： [PROBLEM]It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property.[SOLUTION]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; 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： 本发明的目的在于有效地获得具有优异性能的吸水性树脂。 [解决方案]一种吸水性树脂的制备方法，包括：通过使单体水溶液进行聚合反应获得水凝胶的聚合步骤; 和干燥步骤，用于干燥水凝胶; 其中干燥步骤中的干燥是使用连续的通流式带式干燥机进行的; 提供给干燥步骤的水凝胶的固体含量为35重量％以上，并且由连续贯流带中的贯流带上的水凝胶的以下表达式1表示的厚度变化率（1）为1.05 到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]

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]

公开(公告)号：US07378453B2

公开(公告)日：2008-05-27

申请号：US10798346

申请日：2004-03-12

申请人： Kozo Nogi ,  Shigeru Sakamoto ,  Noriaki Mizutani ,  Yorimichi Dairoku ,  Kunihiko Ishizaki

发明人： Kozo Nogi ,  Shigeru Sakamoto ,  Noriaki Mizutani ,  Yorimichi Dairoku ,  Kunihiko Ishizaki

IPC分类号： C08J3/00 ,  C08J3/12

CPC分类号： C08J3/124 ,  C08J2300/14

摘要： A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-absorbing resin powder having excellent physical properties without causing deterioration in physical properties of resin. The surface crosslinking treatment method of a water-absorbing resin powder includes adding a surface crosslinking agent to a water-absorbing resin powder and heat treating the mixture, wherein (1) the water-absorbing resin powder after the heat treatment is stirred and cooled under an air flow; (2) the water-absorbing resin powder after the heat treatment is cooled under an air flow, and at the same time, at least a part of fine particles of the water-absorbing resin powder and/or the residual crosslinking agent is removed by the air flow; or (3) the water-absorbing resin powder after the heat treatment is cooled and simultaneously granulated, and preferably an aqueous solution is added to the water-absorbing resin powder at a temperature of 40-100° C. during the cooling treatment.

摘要翻译： 公开了一种吸水性树脂粉末的表面交联处理方法，其可以克服在工业规模生产表面交联吸水性树脂粉末时遇到的生产中的各种问题，并且可以制备具有优异物理性能的吸水性树脂粉末 而不会导致树脂的物理性能的劣化。 吸水性树脂粉末的表面交联处理方法包括向吸水性树脂粉末中添加表面交联剂，对该混合物进行热处理，其中（1）将热处理后的吸水性树脂粉末在 气流; （2）热处理后的吸水性树脂粉末在空气流下冷却，同时，吸水性树脂粉末和/或残留交联剂的至少一部分微粒被除去 气流; 或者（3）将热处理后的吸水性树脂粉末冷却并同时造粒，优选在冷却处理期间在40〜100℃的温度下向吸水性树脂粉末中添加水溶液。

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]。

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。

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。

公开(公告)号：US09624322B2

公开(公告)日：2017-04-18

申请号：US13635055

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： B07B1/56 ,  C08F120/06 ,  C08F220/06 ,  C08J3/24 ,  C08F6/00 ,  B07B1/54 ,  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 tapping material and a metal sieve mesh, in which the tapping material being heated at 40° C. to 100° C. is installed below the metal sieve mesh, and the metal sieve mesh has an area of 1 to 10 m2/sheet. The classification step further requires introducing a classification aid particle, which has a specific gravity different from that of the water absorbent resin, to the metal sieve mesh; and monitoring the presence or absence of damage to the metal sieve mesh.

公开(公告)号：US20120157635A1

公开(公告)日：2012-06-21

申请号：US13392240

申请日：2010-08-27

申请人： Kozo Nogi ,  Kunihiko Ishizaki ,  Syuji Kanzaki

发明人： Kozo Nogi ,  Kunihiko Ishizaki ,  Syuji Kanzaki

IPC分类号： C08F120/06

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 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。 当生产规模以大规模（例如1吨/小时以上）增加到连续生产时，通过表面活性剂改善和稳定物理性能（例如物理性能的标准偏差） 交联处理，耐压吸收（AAP）和液体渗透性（SFC）进一步提高。 具体公开了一种聚丙烯酸（盐）型吸水性树脂的制造方法，其特征在于，包括：使用丙烯酸（盐）制备单体水溶液的工序; 连续聚合单体水溶液的步骤; 在聚合期间或之后，含水凝胶状交联聚合物的脱落步骤; 干燥由此得到的颗粒含水凝胶状交联聚合物的步骤; 以及表面处理工序，其中加入表面交联剂并与干燥的吸水性树脂粉末反应。 在表面处理步骤中，表面处理剂和连续加热装置的连续混合装置连接，并且在混合装置和加热装置之间进行周期性屏蔽。