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91.发明申请POLYACRYLIC ACID (SALT)-TYPE WATER ABSORBENT RESIN AND METHOD FOR PRODUCING OF SAME 有权聚丙烯酸（盐）型吸水树脂及其制造方法公开(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。
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92.发明申请公开(公告)号：US20120010372A1
公开(公告)日：2012-01-12
申请号：US13148359
申请日：2010-02-08
CPC分类号： C08F2/44 , C08F220/06
摘要： The physical properties of a water-absorbing resin with low residual monomer content are improved or stabilized, without sacrifices in productivity, production cost, stability, etc. Provided is a water-absorbing resin with low residual monomer content and excellent whiteness, wherein a water-absorbing resin consumed in large quantities in disposable diapers, etc., is preferably a sustainable and renewable water-absorbing resin that does not require excessive purification of the acrylic acid, particularly acrylic acids derived from non-fossil sources, that is the starting material of the water-absorbing resin. Disclosed is a method of manufacturing a hydrophilic polyacrylic acid (salt) resin, which is a method of manufacturing a water-absorbing polyacrylic acid resin that comprises a step in which a monomer is prepared from acrylic acid, a step in which said monomer is polymerized, and a step in which the resulting hydrous gel is dried. The polymerization is performed such that the content of hydroxypropionic acid (salt) in the monomer is 2000 ppm or less and/or the content of saturated organic carboxylic acid in the monomer is 2% by mass or less, and at least a portion of the saturated organic carboxylic acid is volatilized during and after the drying step.
摘要翻译： 具有低残留单体含量的吸水树脂的物理性能得到改善或稳定化，而不牺牲生产率，生产成本，稳定性等。提供了具有低残留单体含量和优异白度的吸水树脂，其中水 在一次性尿布等中大量消耗的吸收树脂优选是可持续且可再生的吸水树脂，其不需要过度纯化丙烯酸，特别是源自非化石源的丙烯酸，即起始材料 的吸水树脂。 公开了一种制造亲水性聚丙烯酸（盐）树脂的方法，其是制备吸水性聚丙烯酸树脂的方法，其包括其中单体由丙烯酸制备的步骤，所述单体聚合的步骤 ，以及将所得含水凝胶干燥的步骤。 进行聚合，使得单体中羟基丙酸（盐）的含量为2000ppm以下，和/或单体中的饱和有机羧酸的含量为2质量％以下，至少一部分 饱和有机羧酸在干燥步骤期间和之后挥发。
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93.发明申请Production Method Of Water Absorbent Resin Powder And Package Of Water Absorbent Resin Powder 审中-公开吸水树脂粉末和吸水树脂粉末包装的生产方法公开(公告)号：US20090321682A1
公开(公告)日：2009-12-31
申请号：US12308803
申请日：2007-07-19
摘要： A method according to the present invention for producing water absorbent resin powder is a method for producing water absorbent resin having a surface cross-linked structure, and includes: a polymerization step in which an unsaturated monomer aqueous solution is polymerized; a drying step in which a hydrogel cross-linked polymer obtained in the polymerization step is dried; a surface treatment step in which the hydrogel cross-linked polymer or a dried hydrogel cross-linked polymer is subjected to a surface treatment; and a sorting step, carried out after the drying step, in which a foreign matter included in a water absorbent resin is color-sorted from the water absorbent resin entirely or partially. As a result, it is possible to obtain a water absorbent resin which has high properties and is less likely to be colored. In this way, there is provided the water absorbent resin powder production method in which the color sorting technique is used to remove foreign matters from the water absorbent resin.
摘要翻译： 本发明的吸水性树脂粉末的制造方法是具有表面交联结构的吸水性树脂的制造方法，其特征在于，包含：使不饱和单体水溶液聚合的聚合工序; 干燥步骤，其中在聚合步骤中获得的水凝胶交联聚合物被干燥; 对水凝胶交联聚合物或干燥的水凝胶交联聚合物进行表面处理的表面处理步骤; 以及在干燥步骤之后进行的分类步骤，其中包含在吸水性树脂中的异物完全或部分地从吸水性树脂中分选。 结果，可以获得具有高性能并且不太可能着色的吸水性树脂。 以这种方式，提供了使用颜色分选技术从吸水性树脂除去异物的吸水性树脂粉末的制造方法。
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94.发明授权Particulate water-absorbing agent containing water-absorbent resin as a main component 有权以吸水性树脂为主要成分的颗粒状吸水剂公开(公告)号：US07510988B2
公开(公告)日：2009-03-31
申请号：US11662590
申请日：2005-09-22
申请人： Katsuyuki Wada , Hiroko Ueda , Kazuki Kimura , Kunihiko Ishizaki
发明人： Katsuyuki Wada , Hiroko Ueda , Kazuki Kimura , Kunihiko Ishizaki
CPC分类号： C08J3/24 , A61L15/46 , A61L15/60 , A61L2300/30 , A61L2300/404 , A61L2300/802 , C08J2300/14 , Y10T428/24893 , Y10T428/24942 , Y10T428/2982 , Y10T442/653
摘要： In at least one embodiment, a particulate water-absorbing agent is provided which not only ensures the many conventional physical properties (absorption rate, centrifuge retention capacity, absorbency against pressure, particle size distribution etc.) but also prevents odor which is generated after the resin is swollen by absorption. The water absorbent agent of an embodiment of the present invention therefore does not cause odor in actual use. As a result of intensive study of the foregoing problem, an embodiment of the present invention offers a way of controlling a specific odor component, which is generated from impurities and/or by-product derived from the raw material, after the high temperature process. In this way, an embodiment of the present invention successfully provides a water absorbent agent not causing odor after the resin is swollen by absorption.
摘要翻译： 在至少一个实施方案中，提供了一种颗粒状吸水剂，其不仅确保了许多常规物理性能（吸收速率，离心保留能力，耐压吸收性，粒度分布等），而且还防止了在 树脂通过吸收而膨胀。 因此，本发明的实施方式的吸水剂在实际使用中不会引起气味。 作为对上述问题的深入研究的结果，本发明的实施方式提供了在高温处理之后控制由原料衍生的杂质和/或副产物产生的特定气味成分的方法。 以这种方式，本发明的一个实施方案成功地提供了在树脂通过吸收溶胀而不产生气味的吸水剂。
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公开(公告)号：US07183456B2
公开(公告)日：2007-02-27
申请号：US10764535
申请日：2004-01-27
申请人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
发明人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
CPC分类号： C08J3/122 , A61L15/60 , C08J3/245 , C08J2300/14 , Y10S524/916 , Y10T428/2982
摘要： In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
摘要翻译： 在吸水性树脂的制造方法中，包括以下步骤：将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂，本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法，结果是良好平衡 具有各种优异性能的吸水性树脂，这种无负载的吸收能力，负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴（C）的混合装置将吸水性树脂（A）和液体材料（B）喷雾共混的步骤，其中液体材料（B）从喷雾 喷嘴（C）及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外，制造方法包括在露点不高于60℃，温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤，其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。
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公开(公告)号：US07078458B2
公开(公告)日：2006-07-18
申请号：US11014969
申请日：2004-12-20
摘要： In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a β-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
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公开(公告)号：US07038081B2
公开(公告)日：2006-05-02
申请号：US10375140
申请日：2003-02-28
IPC分类号： C07C51/16
CPC分类号： C08F20/06
摘要： A method for producing polyacrylic acid includes a combined process of an acrylic acid production process and a polyacrylic acid production process. The acrylic acid production process includes the steps of catalytically oxidizing propylene and/or propane in a gaseous phase to generate reaction product, absorbing the reaction product in a solvent, and purifying acrylic acid from an acrylic acid aqueous solution containing the solvent by purification. The polyacrylic acid production process includes the step of utilizing heat medium recovered in the acrylic acid production process to purify polyacrylic acid from the acrylic acid aqueous solution or from acrylic acid.
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公开(公告)号：US06927268B2
公开(公告)日：2005-08-09
申请号：US09883266
申请日：2001-06-19
IPC分类号： C08F2/00 , C08F20/06 , C08F220/46
CPC分类号： C08F20/06
摘要： The present invention provides a process for producing a water-absorbent resin of which the residual monomer content and the extractable content are low. The process for producing a water-absorbent resin comprises the step of polymerizing at least one monomer component including acrylic acid and/or its salt as major components to produce a water-absorbent resin that is a neutralized salt, and this process is characterized in that the acrylic acid is a product obtained by catalytic gas phase oxidation of propylene and/or propane and has a protoanemonin content of not more than 10 ppm, and in that the resultant water-absorbent resin has a neutralization ratio of not less than 50 mol %.
摘要翻译： 本发明提供了残留单体含量和可萃取量低的吸水性树脂的制造方法。 制造吸水性树脂的方法包括使包含丙烯酸和/或其盐的至少一种单体组分作为主要成分进行聚合以产生作为中和盐的吸水性树脂的步骤，该方法的特征在于 丙烯酸是通过丙烯和/或丙烷的催化气相氧化而得到的，具有不高于10ppm的原水蛭素含量的产物，并且所得吸水性树脂的中和率不小于50mol％ 。
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公开(公告)号：US20050113252A1
公开(公告)日：2005-05-26
申请号：US10933319
申请日：2004-09-03
申请人： Koji Miyake , Takahiro Kitano , Kunihiko Ishizaki
发明人： Koji Miyake , Takahiro Kitano , Kunihiko Ishizaki
IPC分类号： C08J3/12 , A61L15/18 , A61L15/60 , C08J3/20 , C08J3/24 , C08L101/14 , C08L1/00 , B01J20/26 , C08J3/00 , C08K3/02 , C08K5/01 , C08K5/02 , C08K5/04 , C08K5/07
CPC分类号： C08J3/20 , A61L15/18 , A61L15/60 , C08J3/245 , C08J2333/00
摘要： A method of producing a particle-shape water-absorbing resin material is realized. With this method, it is possible to prevent deterioration of properties of the particle-shape water-absorbing resin material, and reduces damages onto surfaces thereof. This method is arranged such that (a) water-absorbing resin particles are surface-treated by using a crossing agent so that surfaces of the particles are cross-linked, (b) an additive for giving a function to the particles is added to the particles, (c) and a step of mixing the particles and the additive is carried out in a step of performing particle-size regulating treatment for the particles which includes agglomerated particles.
摘要翻译： 实现了颗粒状吸水性树脂材料的制造方法。 通过该方法，可以防止颗粒状吸水性树脂材料的特性劣化，并且降低对其表面的损伤。 该方法的布置使得（a）吸水性树脂颗粒通过使用交叉剂进行表面处理，使得颗粒的表面交联，（b）将用于赋予颗粒功能的添加剂添加到 颗粒，（c）和混合颗粒和添加剂的步骤在对包括附聚颗粒的颗粒进行粒度调节处理的步骤中进行。
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公开(公告)号：US06720389B2
公开(公告)日：2004-04-13
申请号：US09945812
申请日：2001-09-05
申请人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
发明人： Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
IPC分类号： C08J324
CPC分类号： C08J3/122 , A61L15/60 , C08J3/245 , C08J2300/14 , Y10S524/916 , Y10T428/2982
摘要： In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
摘要翻译： 在吸水性树脂的制造方法中，包括以下步骤：将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂，本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法，结果是良好平衡 具有各种优异性能的吸水性树脂，这种无负载的吸收能力，负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴（C）的混合装置将吸水性树脂（A）和液体材料（B）喷雾共混的步骤，其中液体材料（B）从喷雾 喷嘴（C）及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外，制造方法包括在露点不高于60℃，温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤，其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。
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