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61. 发明授权

US08424786B2 Method for production of particulate water absorbent comprising water-absorbable resin as main ingredient 有权
标题翻译：用于生产包含吸水树脂作为主要成分的颗粒状吸水剂的方法
公开(公告)号：US08424786B2
公开(公告)日：2013-04-23
申请号：US12921946
申请日：2009-03-13
申请人： Kunihiko Ishizaki , Koji Matsumoto , Yoshiro Mitsukami
发明人： Kunihiko Ishizaki , Koji Matsumoto , Yoshiro Mitsukami
IPC分类号： B02C19/00
CPC分类号： B65B1/08 , B01J20/26 , B01J20/267 , B01J20/30 , B01J2220/68 , B65B1/06 , B65B1/22 , B65B37/04 , C08F20/06 , C08J3/245
摘要： [PROBLEM]To obtain a particulate water absorbent having excellent and stabilized physical properties.[SOLUTION]One example of the production method for particulate water-absorbing agent of the present invention includes a polymerization step for polymerizing a monomer to obtain a polymer gel, a drying step for drying the polymer gel to obtain a particulate water-absorbing resin, a pulverization step for pulverizing the particulate water-absorbing resin, a classification step for sieving the particulate water-absorbing resin, a surface cross-linking step for cross-linking the neighborhood of the surface of the particulate water-absorbing resin to obtain the particulate water-absorbing agent, a packaging step for filling the particulate water-absorbing agent into a packaging material container for packaging, and a transportation step for transporting the products produced in each of the steps to the other steps, wherein at least any one of the steps including and subsequent to the drying step is in two or more lines, for one line of the polymerization step.
摘要翻译： [问题]获得物理性能优异且稳定的颗粒状吸水剂。 [解决方案]本发明的颗粒状吸水剂的制造方法的一个例子包括聚合单体以获得聚合物凝胶的聚合步骤，干燥聚合物凝胶以获得颗粒状吸水树脂的干燥步骤，用于粉碎颗粒状吸水树脂的粉碎步骤，用于筛选颗粒状吸水树脂的分级步骤，用于交联颗粒状吸水树脂表面附近的表面交联步骤，以获得颗粒状吸水剂，将颗粒状吸水剂填充到用于包装的包装材料容器中的包装步骤，以及将在每个步骤中生产的产品输送到其它步骤的运输步骤，其中至少任何一个对于一行聚合步骤，包括干燥步骤和之后的步骤在两行或更多行中。

62. 发明申请

US20130005926A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
标题翻译：生产吸水树脂的方法
公开(公告)号：US20130005926A1
公开(公告)日：2013-01-03
申请号：US13634167
申请日：2011-03-14
申请人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
发明人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
IPC分类号： C08F120/06
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 process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; and a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization. In the process, the drying step is interrupted with a dryer kept in a heated state and thereafter the drying step is restarted.
摘要翻译：所公开的生产吸水性树脂的方法，包括：使含水不饱和单体聚合的聚合步骤; 以及干燥步骤，在聚合过程中或聚合后，在细碎的步骤中得到颗粒状的含水凝胶状交联聚合物。在该过程中，干燥步骤被保持在加热状态的干燥器中断，然后重新开始干燥步骤。

63. 发明申请

US20130005904A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
标题翻译：生产吸水树脂的方法
公开(公告)号：US20130005904A1
公开(公告)日：2013-01-03
申请号：US13634151
申请日：2011-03-14
申请人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
发明人： Syuji Kanzaki , Sumio Okuda , Kunihiko Ishizaki , Satoshi Matsumoto
IPC分类号： C08F20/06
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 process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization; a pulverizing step after the drying, a classification step after the drying, and a surface treatment step after the classification. In the process is, the surface-treatment step is interrupted with a heating treatment apparatus kept in a heated state and thereafter the surface treatment step is restarted.
摘要翻译：所公开的生产吸水性树脂的方法，包括：使含水不饱和单体聚合的聚合步骤; 干燥步骤，在聚合过程中或在聚合后，在细粉碎步骤中得到颗粒状含水凝胶状交联聚合物; 干燥后的粉碎工序，干燥后的分级工序，分级后的表面处理工序。在该过程中，表面处理步骤被保持在加热状态的加热处理装置中断，然后重新开始表面处理步骤。

64. 发明申请

US20120298915A1 PROCESS FOR PRODUCING WATER-ABSORBING RESIN POWDER 有权
标题翻译：生产吸水树脂粉的方法
公开(公告)号：US20120298915A1
公开(公告)日：2012-11-29
申请号：US13578118
申请日：2011-02-10
申请人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
发明人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
IPC分类号： C08L33/02
CPC分类号： C08J3/12 , B01J20/267 , B01J2220/68 , C08J3/245 , C08J2300/14
摘要： Provided is a process for producing a water-absorbing resin powder which contains a given amount of water added thereto, has a low dust content, and has high material properties. When a water-absorbing resin powder which has undergone surface crosslinking is produced on an industrial scale, various problems concerning production are eliminated and a long-term stable operation is possible without causing a deterioration in the material properties of the resin. Even when the process is continued over a long period, the material properties are stabilized (decrease in standard deviation) or improved (improvement in AAP). The process for producing a water-absorbing resin comprises, in the following order, a first classification step for classifying a water-absorbing resin, a surface crosslinking step after the classification, a water addition step for adding water to the water-absorbing resin powder after or during the surface crosslinking, a second classification step, and a conveying step.
摘要翻译：提供了含有给定量的水的吸水性树脂粉末的制造方法，其具有低的粉尘含量，并且具有高的材料性能。当以工业规模生产经历表面交联的吸水树脂粉末时，消除了生产中的各种问题，并且可以长期稳定地操作，而不会导致树脂的材料性能的劣化。即使长时间持续该过程，材料性能也稳定（标准偏差降低）或改善（AAP改善）。吸水性树脂的制造方法按照以下顺序包括分级吸水性树脂的第一分级工序，分级后的表面交联工序，向吸水性树脂粉末中添加水的添加水添加工序在表面交联之后或期间，第二分级步骤和输送步骤。

65. 发明申请

US20090036855A1 Particulate water-absorbing agent with water-absorbing resin as main component, method for production of the same, and absorbing article 审中-公开
标题翻译：具有吸水性树脂作为主要成分的颗粒状吸水剂，其制造方法和吸收性物品
公开(公告)号：US20090036855A1
公开(公告)日：2009-02-05
申请号：US11658879
申请日：2005-08-05
申请人： Katsuyuki Wada , Hiroko Ueda , Teruyuki Kanto , Kunihiko Ishizaki , Motohiro Imura
发明人： Katsuyuki Wada , Hiroko Ueda , Teruyuki Kanto , Kunihiko Ishizaki , Motohiro Imura
IPC分类号： A61F13/53 , B01J20/28
CPC分类号： B01J20/261 , A61F13/531 , A61F2013/530569 , A61F2013/5307 , A61F2013/530751 , A61L15/60 , B01J20/26 , B01J20/2803 , B01J2220/68 , C08F6/18 , C08F220/06
摘要： Reversed phase suspension polymerization is allowed while controlling content of minor components in monomer, particularly controlling a content of acetic acid and propionic acid being not higher than 500 ppm, controlling a content of acrylic acid dimer being not higher than 1000 ppm, in acrylic acid. Cross-linked polymer obtained by the polymerization is subjected to a surface crosslinking treatment without substantially using an organic solvent, and under heating at high temperature (150° C. or higher and 250° C. or lower). Thereafter, agglomeration is carried out without substantially using an organic solvent. Accordingly, a particulate water-absorbing agent including a water-absorbing resin having superior property, and being suited for practical applications at high concentrations in absorbing cores such as a diaper and the like without generation of any odor of the organic solvent can be obtained because no volatile organic compound is included.
摘要翻译：在丙烯酸中控制丙烯酸二聚体的含量控制丙烯酸二聚体的含量不高于500ppm，特别是控制乙酸和丙酸的含量不高于500ppm，同时控制单体中少量成分的含量，进行反相悬浮聚合。通过聚合得到的交联聚合物基本上不使用有机溶剂进行表面交联处理，并在高温（150℃以上且250℃以下）下加热。此后，基本上不使用有机溶剂进行附聚。因此，可以获得包含具有优异性能的吸水性树脂的颗粒状吸水剂，并且可以获得不产生有机溶剂的任何气味的高吸收性芯材如尿布等的实际应用的颗粒状吸水剂，因为不含挥发性有机化合物。

66. 发明授权

US07238743B2 Production process for water-absorbent resin 有权
标题翻译：吸水树脂的生产工艺
公开(公告)号：US07238743B2
公开(公告)日：2007-07-03
申请号：US11143628
申请日：2005-06-03
申请人： Yukihiro Matsumoto , Kunihiko Ishizaki , Teruyuki Kanto
发明人： Yukihiro Matsumoto , Kunihiko Ishizaki , Teruyuki Kanto
IPC分类号： C08F20/06
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％。

67. 发明申请

US20070141338A1 Particulate water absorbing agent with irregularly pulverized shape 有权
标题翻译：颗粒状吸水剂不规则粉碎形状
公开(公告)号：US20070141338A1
公开(公告)日：2007-06-21
申请号：US10588530
申请日：2005-03-29
申请人： Kunihiko Ishizaki , Takahiro Kitano , Yoshifumi Adachi , Hiroko Ueda , Katsuyuki Wada
发明人： Kunihiko Ishizaki , Takahiro Kitano , Yoshifumi Adachi , Hiroko Ueda , Katsuyuki Wada
IPC分类号： B32B1/00 , B01J20/00 , B01J20/22 , B01J20/26 , B32B5/16
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , Y10T428/249924 , Y10T428/254 , Y10T428/2982 , Y10T428/2991 , Y10T428/2998 , Y10T442/2344
摘要： The present invention provides a particulate water absorbing agent for a thin type absorbing substrate suitable for actual use. A particulate water absorbing agent having irregularly pulverized shape, characterized by comprising, a surface crosslinked water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer with an acid group and/or salts thereof, which absorbing agent contains agglomerated particles therein and further satisfies (i) centrifuge retention capacity (CRC) in a physiological saline solution of not lower than 32 g/g, (ii) mass median particle size (D50) of 200 to 400 μm, and (iii) particles smaller than 600 μm and not smaller than 150 μm of 95 to 100% by weight. By using the particulate water absorbing agent, such absorbing articles can be obtained as have few rugged surface after water absorption, excellent liquid permeation property.
摘要翻译：本发明提供一种适用于实际使用的薄型吸收性基材用颗粒状吸水剂。具有不规则粉碎形状的颗粒状吸水剂，其特征在于，包含通过使不饱和单体与酸基和/或其盐交联聚合得到的表面交联吸水性树脂，所述吸收剂含有附聚颗粒，并进一步满足（ i）在不低于32g / g的生理盐水溶液中离心保留容量（CRC），（ii）质量中值粒径（D50）为200-400μm，和（iii）小于600μm的颗粒而不是更小的颗粒 95％至100％重量的150mg。通过使用颗粒状吸水剂，可以获得这样的吸收制品，其吸水后的表面几乎不渗透，液体渗透性优异。

68. 发明授权

US06992144B2 Water-absorbent agent, method for production thereof, and water-absorbent composition 失效
标题翻译：吸水剂，其制造方法和吸水性组合物
公开(公告)号：US06992144B2
公开(公告)日：2006-01-31
申请号：US10229111
申请日：2002-08-28
申请人： Yorimichi Dairoku , Kinya Nagasuna , Yoshihiko Masuda , Nobuyuki Harada , Yoshihiro Motono , Kunihiko Ishizaki
发明人： Yorimichi Dairoku , Kinya Nagasuna , Yoshihiko Masuda , Nobuyuki Harada , Yoshihiro Motono , Kunihiko Ishizaki
IPC分类号： C08F8/32
CPC分类号： C08J3/245 , A61L15/24 , A61L15/60 , C08F220/06 , C08J2300/14 , C08L33/02
摘要： A method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids and a cross-linking agent capable of reacting with the carboxyl group. A water-absorbent agent obtained by adding from 0.005 to 8 parts by weight of an epoxy compound to 100 parts by weight of a water-absorbent resin, exhibiting an absorption capacity without load of at least 45 (g/g), an absorption capacity under load of 20 g/cm2 of not less than 30 (ml/g) and having a residue amount of an epoxy compound of not more than 2 ppm. A water-absorbent composition comprises a polyamino acid (salt) and a water-absorbent resin containing a carboxyl group.
摘要翻译：制造吸水剂的方法包括将含羧基的吸收性树脂与可溶于选自无机酸，有机酸和聚氨基酸中的至少一种的水溶液中的添加剂混合，以及能够与羧基反应的交联剂。通过将0.005〜8重量份的环氧化合物与100重量份的吸水性树脂相加而获得的吸水剂，其表现出无负载的吸收能力为至少45（g / g），吸收能力在20g / cm 2以下的负载不小于30（ml / g），残留量为不大于2ppm的环氧化合物。吸水性组合物包含聚氨基酸（盐）和含有羧基的吸水性树脂。

69. 发明申请

US20050228154A1 Production process for water-absorbent resin 有权
公开(公告)号：US20050228154A1
公开(公告)日：2005-10-13
申请号：US11143628
申请日：2005-06-03
申请人： Yukihiro Matsumoto , Kunihiko Ishizaki , Teruyuki Kanto
发明人： Yukihiro Matsumoto , Kunihiko Ishizaki , Teruyuki Kanto
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 %.

70. 发明授权

US5475062A Method for surface treatment of absorbent resin 失效
标题翻译：吸水树脂表面处理方法
公开(公告)号：US5475062A
公开(公告)日：1995-12-12
申请号：US186560
申请日：1994-01-26
申请人： Kunihiko Ishizaki , Shin-ichi Fujino , Kinya Nagasuna , Yoshiniko Masuda
发明人： Kunihiko Ishizaki , Shin-ichi Fujino , Kinya Nagasuna , Yoshiniko Masuda
IPC分类号： C08J7/00 , A61L15/20 , A61L15/60 , B01J20/32 , C08F8/14 , C08J3/12 , C08J3/24
CPC分类号： C08F8/14 , A61L15/20 , A61L15/60 , B01J20/261 , B01J20/265 , B01J20/28004 , B01J20/28014 , B01J20/3021 , B01J20/3078 , B01J20/321 , B01J20/3248 , C08F2810/20
摘要： A method for the surface treatment of an absorbent resin is proposed which notably improves the absorption capacity of the absorbent resin under pressure without impairing safety and hydroscopic flowability. The method comprises adding an organic carboxylic ester of a polyhydric alcohol to the absorbent resin and then heat-treating the resultant mixture.
摘要翻译：提出了一种用于表面处理吸收性树脂的方法，该方法在不损害安全性和吸湿性的流动性的情况下，显着提高了吸收性树脂在加压下的吸收能力。该方法包括向吸收树脂中加入多元醇的有机羧酸酯，然后热处理所得的混合物。

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