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1. 发明授权

US06107358A Water-absorbent resin and method for production thereof 失效
标题翻译：吸水性树脂及其制造方法
公开(公告)号：US06107358A
公开(公告)日：2000-08-22
申请号：US915557
申请日：1997-08-21
申请人： Nobuyuki Harada , Koji Miyake , Yoshihiro Motono , Hideyuki Tahara , Takumi Hatsuda , Teruyuki Kanto , Akito Yano , Yorimichi Dairoku , Kazuki Kimura , Yasuhiro Fujita
发明人： Nobuyuki Harada , Koji Miyake , Yoshihiro Motono , Hideyuki Tahara , Takumi Hatsuda , Teruyuki Kanto , Akito Yano , Yorimichi Dairoku , Kazuki Kimura , Yasuhiro Fujita
IPC分类号： C08F2/10 , C08J9/30
CPC分类号： C08F2/10 , C08F120/06 , C08F220/06
摘要： A method for the production of a water-absorbent resin capable of fast water absorption is disclosed which comprises the steps of dispersing bubbles of an inert gas in an aqueous monomer solution of a mixture of a water-soluble unsaturated monomer and a water-soluble cross-linking monomer and subjecting the mixture to copolymerization under the condition that a volume of the monomer solution wherein the inert gas is dispersed is in the range of 1.02 to 5 times of a volume of non-dispersant state.
摘要翻译：公开了一种能够快速吸水的吸水性树脂的制造方法，该方法包括以下步骤：将惰性气体的气泡分散在水溶性不饱和单体和水溶性交联剂的混合物的单体水溶液中在使分散有惰性气体的单体溶液的体积为非分散状态的体积的1.02〜5倍的条件下进行共聚合。

2. 发明授权

US06241928B1 Method for production of shaped hydrogel of absorbent resin 有权
标题翻译：吸水树脂成型水凝胶的生产方法
公开(公告)号：US06241928B1
公开(公告)日：2001-06-05
申请号：US09300196
申请日：1999-04-27
申请人： Takumi Hatsuda , Katsuhiro Kajikawa , Hideyuki Tahara , Koji Miyake , Akito Yano , Takanori Murakami
发明人： Takumi Hatsuda , Katsuhiro Kajikawa , Hideyuki Tahara , Koji Miyake , Akito Yano , Takanori Murakami
IPC分类号： B29D701
CPC分类号： B01J13/0052 , B01J19/1887 , B01J19/22 , B01J20/26 , B01J20/30 , B29C39/14 , B29C41/28 , B29K2995/0092
摘要： A method for the continuous production of a shaped hydrogel of absorbent resin is disclosed. This invention accomplishes the continuous production by continuously supplying in the form of a layer a monomer mixture capable of forming an absorbent resin by polymerization and polymerizing the layer of the monomer mixture. This method is characterized by retaining the rate of change of the thickness in the direction of width of the layer of hydrogel of absorbent resin at the time of formation of gel at a level of not more than 20%. The method is advantageously carried out by the use of an apparatus for the production of a shaped hydrogel of absorbent resin which comprises a movable endless revolving support belt, a monomer mixture supplying device, and a device for discharging the shaped hydrogel of absorbent resin, the apparatus preferably being provided near each of the opposite lateral parts of the movable endless revolving support belt with a lateral weir adapted to move in concert with the belt or being provided near each of the opposite lateral parts of the movable endless revolving support belt with a lateral weir fixed in such a manner as to contact the belt in a sliding state. The method of this invention permits production of a shaped hydrogel of absorbent resin intended to afford an absorbent resin which exhibits high absorption capacity, little water-soluble content and little residual monomer only in small amounts, and enjoys a high productivity rate.
摘要翻译：公开了连续生产吸水树脂成型水凝胶的方法。本发明通过使单体混合物的层聚合和聚合，连续地以层的形式连续供给能够形成吸收性树脂的单体混合物。该方法的特征在于，在凝胶形成时，将吸湿树脂的水凝胶层的宽度方向的厚度变化率保持在20％以下。该方法有利地通过使用用于生产吸收性树脂的成形水凝胶的装置进行，该设备包括可移动的环形旋转支撑带，单体混合物供应装置和用于排出吸收性树脂的成形水凝胶的装置，设备优选地设置在可移动环形旋转支撑带的每个相对的侧部附近，具有适于与带一致移动的侧向堰或者设置在可移动环形旋转支撑带的每个相对的侧部附近，堰以这样的方式固定，以便在滑动状态下接触皮带。本发明的方法允许生产吸水树脂的成型水凝胶，以提供吸收性能高的吸水树脂，少量的水溶性成分和少量残留的单体，并且生产率高。

3. 发明授权

US06576713B2 Water-absorbent resin powder and production process therefor 有权
标题翻译：吸水树脂粉及其制作方法
公开(公告)号：US06576713B2
公开(公告)日：2003-06-10
申请号：US09789735
申请日：2001-02-22
申请人： Kunihiko Ishizaki , Teruyuki Kanto , Nobuyuki Harada , Takumi Hatsuda , Shinichi Fujino
发明人： Kunihiko Ishizaki , Teruyuki Kanto , Nobuyuki Harada , Takumi Hatsuda , Shinichi Fujino
IPC分类号： C08F22062
CPC分类号： C08J3/12 , C08J3/122 , C08J2300/14 , Y10T428/2982
摘要： The present invention provides a production process for a water-absorbent resin powder which is excellent in particle diameter distribution and properties, wherein the production process not only inhibits adhesion and aggregation in the production steps, but also is excellent in energy efficiency, drying efficiency, and productivity. The production process for a water-absorbent resin powder comprises the steps of: polymerizing an aqueous monomer solution containing a crosslinking agent; heat-drying the resultant crosslinked hydrogel polymer; and pulverizing the resultant dry polymer; wherein: the dry polymer resultant from the heat-drying step is forcibly cooled before or during the pulverization step; and the water-absorbent resin powder has an average particle diameter of 200 to 600 &mgr;m after the pulverization step wherein the total ratio of particles having particle diameters of not larger than 150 &mgr;m and particles having particle diameters of not smaller than 850 &mgr;m in the water-absorbent resin powder is not more than 15 weight % of the water-absorbent resin powder.
摘要翻译：本发明提供一种吸水性树脂粉末的制造方法，其特征在于，粒径分布和性能优异，其制造方法不仅抑制了制造工序中的粘合和聚集，而且能量效率，干燥效率，和生产率。吸水性树脂粉末的制造方法包括以下步骤：使含有交联剂的单体水溶液聚合; 加热干燥所得的交联水凝胶聚合物; 并粉碎所得的干燥聚合物; 其中：由所述加热干燥步骤得到的干燥聚合物在粉碎步骤之前或阶段被强制冷却; 吸水性树脂粉末在粉碎工序中的平均粒径为200〜600μm，其中粒径不大于150μm的颗粒和颗粒直径不小于850μm的颗粒在水中的总比例 - 吸收性树脂粉末的吸水树脂粉末的15重量％以下。

4. 发明授权

US06187902B1 Production process of hydrophilic crosslinked polymer 有权
标题翻译：亲水性交联聚合物的生产工艺
公开(公告)号：US06187902B1
公开(公告)日：2001-02-13
申请号：US09208820
申请日：1998-12-09
申请人： Toru Yanase , Koji Miyake , Takumi Hatsuda , Akito Yano
发明人： Toru Yanase , Koji Miyake , Takumi Hatsuda , Akito Yano
IPC分类号： C08J300
CPC分类号： C08J3/12 , C08F6/008 , C08J2300/14
摘要： The present invention provides a production process, in which hydrophilic crosslinked polymers can be dried uniformly with good efficiency, and the deterioration during the drying is little. The production process of a hydrophilic crosslinked polymer comprises the steps of polymerizing an aqueous solution including a hydrophilic monomer and a crosslinking agent to obtain a hydrogel crosslinked polymer, and drying the hydrogel crosslinked polymer, thus obtaining the hydrophilic crosslinked polymer, and is characterized in that: the hydrogel crosslinked polymer is dried in a static state until it becomes possible to disintegrate an aggregate of the hydrogel crosslinked polymer; the dried hydrogel crosslinked polymer is disintegrated into a particle size of 20 mm or less; and the disintegrated hydrogel crosslinked polymer is dried in a stirred state and/or a fluidized state.
摘要翻译：本发明提供了亲水性交联聚合物能够以高效率均匀干燥的方法，干燥过程中的劣化很小。亲水性交联聚合物的制造方法包括使包含亲水性单体和交联剂的水溶液聚合，得到水凝胶交联聚合物，干燥水凝胶交联聚合物，得到亲水性交联聚合物，其特征在于，：水凝胶交联聚合物在静止状态下干燥直到可能使水凝胶交联聚合物的聚集体分解; 将干燥的水凝胶交联聚合物分解成20μm以下的粒径; 并且分解的水凝胶交联聚合物在搅拌状态和/或流化状态下干燥。

5. 发明授权

US6140395A Method of producing hydrophilic resin 有权
标题翻译：生产亲水性树脂的方法
公开(公告)号：US6140395A
公开(公告)日：2000-10-31
申请号：US215156
申请日：1998-12-18
申请人： Takumi Hatsuda , Koji Miyake , Akito Yano
发明人： Takumi Hatsuda , Koji Miyake , Akito Yano
IPC分类号： B02C19/22 , B29B7/18 , B29B13/10 , C08F6/00 , C08J3/00
CPC分类号： B02C19/22 , B29B13/10 , B29B7/183 , B29K2995/0092
摘要： A method of producing hydrophilic resin by pulverizing and drying a hydrogel polymer, in which, during pulverization of the hydrogel polymer, the hydrogel polymer is sheared between two spiral rotary blades with different respective feed rates, provided opposite one another. Due to the difference in feed rates of the two rotary blades, one rotary blade overtakes the other, and the hydrogel polymer is caught therebetween and sheared. It is preferable if the temperature of the hydrogel polymer at this time is no less than 40.degree. C.
摘要翻译：通过粉碎和干燥水凝胶聚合物来生产亲水性树脂的方法，其中在将水凝胶聚合物粉碎期间将水凝胶聚合物剪切在具有不同相应进料速率的两个螺旋旋转叶片之间，彼此相对设置。由于两个旋转叶片的进料速率的差异，一个旋转叶片超过另一个旋转叶片，并且水凝胶聚合物被夹在其间并剪切。此时，水凝胶聚合物的温度优选为40℃以上

6. 发明授权

US06194531B1 Method for production of cross-linked polymer 失效
标题翻译：生产交联聚合物的方法
公开(公告)号：US06194531B1
公开(公告)日：2001-02-27
申请号：US08867780
申请日：1997-06-03
申请人： Takumi Hatsuda , Toru Yanase , Yasuhiro Fujita , Kazuki Kimura
发明人： Takumi Hatsuda , Toru Yanase , Yasuhiro Fujita , Kazuki Kimura
IPC分类号： C08F2006
CPC分类号： C08F2/10
摘要： A method for producing a cross-linked polymer manifesting a high absorption capacity and having a small content of soluble component by a convenient and expeditious process with high productivity is provided. An absorbent resin such that disposable diapers and other products incorporating the absorbent resin manifest outstanding qualities and a method for the production of the absorbent resin are proposed. The cross-linked polymer according to this invention is produced by a method of polymerizing an aqueous polymerizable monomer solution containing a water-soluble ethylenically unsaturated monomer and a first cross-linking agent capable of forming a hydrogel polymer by polymerization, which method comprises the steps of performing the polymerization in a substantially static state from the time at which the polymerization is initiated till the time at which the whole polymerization system is gelated, subsequently giving the polymerization system a thorough shearing force thereby granulating the hydrogel polymer before the polymerization system has the temperature thereof elevated by the heat of polymerization to the highest level, and further continuing the polymerization.
摘要翻译：提供了一种通过方便快捷的方法生产具有高吸收能力并且具有小可溶性成分含量的交联聚合物的方法。提出了一种吸收性树脂，使得一次性尿布和其它引入吸收性树脂的产品具有突出的品质，并且提出了制造吸收性树脂的方法。根据本发明的交联聚合物通过聚合包含水溶性烯属不饱和单体的水性可聚合单体溶液和能够通过聚合形成水凝胶聚合物的第一交联剂的方法制备，该方法包括步骤从聚合开始的时间到整个聚合体系凝胶化的时间以基本上静态的方式进行聚合，随后给聚合体系带来彻底的剪切力，从而在聚合体系具有聚合体系之前造粒水凝胶聚合物其聚合温度升高到最高水平，进一步继续聚合。

7. 发明授权

US06586549B1 Water-absorbing composition and its use 有权
标题翻译：吸水组合物及其用途
公开(公告)号：US06586549B1
公开(公告)日：2003-07-01
申请号：US09610967
申请日：2000-07-06
申请人： Takumi Hatsuda , Kazuki Kimura , Koji Miyake , Eri Goto , Katsuyuki Wada
发明人： Takumi Hatsuda , Kazuki Kimura , Koji Miyake , Eri Goto , Katsuyuki Wada
IPC分类号： C08J22046
CPC分类号： C08J3/245 , A61L15/60 , C08J3/12 , C08J2300/14 , C08L33/02 , C08L63/00 , C08L2666/14
摘要： The present invention provides: a water-absorbing composition such that portions containing the water-absorbing composition in a high concentration exhibit excessive-liquid permeation buffering effects in absorbent articles comprising the water-absorbing composition and hydrophilic fibers; and a use of this water-absorbing composition. The water-absorbing composition comprises a water-absorbent resin and an excessive-liquid permeation buffer, wherein the water-absorbent resin is a product by a process including the step of further crosslinking the surface vicinity of a crosslinked polymer, and this water-absorbing composition is characterized by having a liquid permeation buffering index of not less than 0.4 and exhibiting an absorption capacity of not less than 25 g/g in absorbent structures under load, and further having an average particle diameter in the range of 200˜600 &mgr;m, wherein the ratio of particles having particle diameters smaller than 106 &mgr;m in the water-absorbing composition is not more than 5 weight %. This water-absorbing composition is, for example, used for the absorbent articles comprising the water-absorbing composition and the hydrophilic fibers.
摘要翻译：本发明提供一种吸水性组合物，使得含有高浓度吸水性组合物的部分在含有吸水性组合物和亲水性纤维的吸收性物品中表现出过度的液体渗透缓冲效果; 以及这种吸水组合物的用途。吸水性组合物包含吸水性树脂和过量液体渗透缓冲液，其中吸水性树脂是通过包括进一步交联交联聚合物表面附近的步骤的方法的产物，并且该吸水性树脂其组成的特征在于在负载下的吸收结构体中的液体渗透缓冲指数为0.4以上，吸收能力为25g / g以上，平均粒径在200〜600μm的范围内，其中，吸水性组合物中粒径小于106μm的粒子的比例为5重量％以下。该吸水性组合物例如用于包含吸水性组合物和亲水性纤维的吸收性物品。

8. 发明授权

US06207772B1 Method for production of cross-linked polymer 有权
公开(公告)号：US06207772B1
公开(公告)日：2001-03-27
申请号：US09620902
申请日：2000-07-20
申请人： Takumi Hatsuda , Toru Yanase , Yasuhiro Fujita , Kazuki Kimura
发明人： Takumi Hatsuda , Toru Yanase , Yasuhiro Fujita , Kazuki Kimura
IPC分类号： C08F2006
CPC分类号： C08F2/10
摘要： A method for producing a cross-linked polymer manifesting a high absorption capacity and having a small content of soluble component by a convenient and expeditious process with high productivity is provided. An absorbent resin such that disposable diapers and other products incorporating the absorbent resin manifest outstanding qualities and a method for the production of the absorbent resin are proposed. The cross-linked polymer according to this invention is produced by a method of polymerizing an aqueous polymerizable monomer solution containing a water-soluble ethylenically unsaturated monomer and a first cross-linking agent capable of forming a hydrogel polymer by polymerization, which method comprises the steps of performing the polymerization in a substantially static state from the time at which the polymerization is initiated till the time at which the whole polymerization system is gelated, subsequently giving the polymerization system a thorough shearing force thereby granulating the hydrogel polymer before the polymerization system has the temperature thereof elevated by the heat of polymerization to the highest level, and further continuing the polymerization.

9. 发明申请

US20050272600A1 Water-absorbing agent and its production process and use 有权
标题翻译：吸水剂及其生产工艺和用途
公开(公告)号：US20050272600A1
公开(公告)日：2005-12-08
申请号：US11177725
申请日：2005-07-09
申请人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
发明人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
IPC分类号： A61L15/60 , B01J20/00 , B01J20/26 , B01J20/28 , G01N5/02 , G01N15/08
CPC分类号： C08J3/245 , A61F13/53 , A61F2013/530715 , A61F2013/530729 , A61L15/60 , B01J20/26 , B01J20/261 , B01J20/264 , B01J20/265 , B01J20/267 , B01J20/30 , B01J2220/68 , C08F220/06 , C08F222/1006 , C08F222/385 , G01N5/025 , G01N2015/0866
摘要： The present invention provides: a water-absorbing agent which has excellent urine resistance; a water-absorbing agent which has not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time; and production processes and uses for these water-absorbing agents. The present invention water-absorbing agent exhibits a specific or larger value of absorption capacity under a load in a process in which the absorption capacity under a load is measured in a new manner using a specific liquid to be absorbed, and the present invention provides an absorbent matter and an absorbent article which display a specific or larger value of new absorption index as is, for example, led from the absorption capacity under a load or from the resin concentration using the above water-absorbing agent. The present invention further provides a production process for a water-absorbing agent having the above specific parameter.
摘要翻译：本发明提供一种耐尿性优异的吸水剂，吸水剂不仅具有优异的耐尿性，而且具有优异的吸收性能，对于任何尿组合物都是稳定的，随时间变化不大; 以及这些吸水剂的生产方法和用途。本发明的吸水剂在使用特定待吸收液体的新方式测定负荷下的吸收容量的工序中，在负荷下具有特定的或较大的吸收容量值，本发明提供一种吸收性物质和吸收性物品，其具有特定或更大的新吸收指数值，例如由负载下的吸收能力或使用上述吸水剂的树脂浓度引起。本发明还提供了具有上述特定参数的吸水剂的制造方法。

10. 发明授权

US06599989B2 Water-absorbent agents containing polycarboxylic amine chelating agents 有权
标题翻译：含有多羧酸胺螯合剂的吸水剂
公开(公告)号：US06599989B2
公开(公告)日：2003-07-29
申请号：US09255433
申请日：1999-02-22
申请人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
发明人： Katsuyuki Wada , Hiroko Ueda , Naoko Takahashi , Kinya Nagasuna , Koji Miyake , Yasuhiro Fujita , Takumi Hatsuda
IPC分类号： C08J324
CPC分类号： C08J3/245 , A61F13/53 , A61F2013/530715 , A61F2013/530729 , A61L15/60 , B01J20/26 , B01J20/261 , B01J20/264 , B01J20/265 , B01J20/267 , B01J20/30 , B01J2220/68 , C08F220/06 , C08F222/1006 , C08F222/385 , G01N5/025 , G01N2015/0866
摘要： Water-absorbing agents containing polycarboxylic amine chelating agents. The water-absorbing agents are obtained by a process including the step of adding to a water-absorbent resin at least one chelating agent selected from the group consisting of polycarboxylic amines and maleic hydrophilic polymers. The polycarboxylic amine may be selected from a class that includes N-carboxymethyl-aspartic acid as one of its members or selected from a class that includes N,N′-bis(1,2-dicarboxyethyl)-ethylenediamine as one of its members. The water-absorbing agents have not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time.
摘要翻译：含有多羧酸胺螯合剂的吸水剂。吸水剂通过包括向吸水性树脂中加入选自多元羧酸胺和马来酸亲水性聚合物中的至少一种螯合剂的方法获得。多羧酸胺可以选自包括N-羧甲基 - 天冬氨酸作为其成员之一或选自包括N，N'-双（1,2-二羧基乙基） - 乙二胺作为其成员之一的类别。吸水剂不仅具有优异的耐尿性，而且具有优异的吸收性能，对于任何尿组合物都是稳定的，随时间变化不大。

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