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1. 发明授权

US5140076A Method of treating the surface of an absorbent resin 失效
标题翻译：处理吸收树脂表面的方法
公开(公告)号：US5140076A
公开(公告)日：1992-08-18
申请号：US502738
申请日：1990-04-02
申请人： Takumi Hatsuda , Kazumasa Kimura , Kinya Nagasuna , Akito Yano
发明人： Takumi Hatsuda , Kazumasa Kimura , Kinya Nagasuna , Akito Yano
IPC分类号： B01J20/26 , A61L15/60 , C08F2/16 , C08F8/14 , C08F8/30 , C08F8/32 , C08J3/00 , C08J3/12 , C08J3/24 , C08L101/00
CPC分类号： C08J3/12 , A61L15/60 , C08F8/14 , C08F8/30 , C08F8/32 , C08F2810/20 , C08J2300/14
摘要： A method of treating the surface of an absorbent resin, which comprises mixing (A) 100 parts by weight of an absorbent resin powder possessing a carboxyl group (B) 0.01 to 30 parts by weight of a cross-linking agent, (C) 0 to 50 parts by weight of water, and (D) 0 to 60 parts by weight of a hydrophilic organic solvent in a high-speed stirring type mixer provided with an inner surface formed substantially of a substrate (I) possessing a contact angle of not less than about 60.degree. with respect to water and a heat distortion point of not lower than about 70.degree. C. and completing reaction of said absorbent resin powder (A) with said cross-linking agent (B).

2. 发明授权

US5164459A Method for treating the surface of an absorbent resin 失效
标题翻译：用于处理吸收树脂表面的方法
公开(公告)号：US5164459A
公开(公告)日：1992-11-17
申请号：US502735
申请日：1990-04-02
申请人： Kazumasa Kimura , Takumi Hatsuda , Kinya Nagasuna
发明人： Kazumasa Kimura , Takumi Hatsuda , Kinya Nagasuna
IPC分类号： A61L15/00 , A61L15/60 , C08F8/14 , C08J3/00 , C08J3/12 , C08J3/24 , C08K3/00 , C08L101/00
CPC分类号： C08J3/12 , A61L15/60 , C08F8/14 , C08F2810/20 , C08J2300/14
摘要： A method for treating the surface of an absorbent resin which comprises mixing (I) 100 parts by weight of an absorbent resin powder having a carboxyl group, (II) 0.01 to 30 parts by weight of a polyhydric alcohol, (III) 0 to 50 parts by weight of water and (IV) 0 to 60 parts by weight of a hydrophilic organic solvent, and heat-treating at a temperature in the range of 90.degree. to 250.degree. C. to treat the surface of said absorbent resin powder (I) until the reaction of said absorbent resin powder (I) with said polyhydric alcohol (II) is completed, wherein the time for completion of the reaction is the time that satisfies the following equation (a-1):30.ltoreq.(100+C)B/A.ltoreq.80 (a-1)wherein A is absorption capacity of said absorbent resin powder (I) for physiological saline solution, B is the absorption capacity of the resultant treated absorbent resin for physiological saline solution, and C is parts by weight of said polyhydric alcohol (II) used per 100 parts by weight of said absorbent resin powder (I).

3. 发明授权

US07420018B2 Water-absorbing agent production process with surface crosslinking and ion blocking 有权
标题翻译：吸水剂生产工艺具有表面交联和离子封闭
公开(公告)号：US07420018B2
公开(公告)日：2008-09-02
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： C08J3/12 , C08J3/24 , C08F120/06 , B01J8/00 , B01J20/26 , B01J20/32 , A61L15/64
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。

4. 发明授权

US5229488A Method for manufacture of an absorbent resin 失效
标题翻译：吸收树脂的制造方法
公开(公告)号：US5229488A
公开(公告)日：1993-07-20
申请号：US576942
申请日：1990-09-04
申请人： Kinya Nagasuna , Katsuhiro Kajikawa , Takumi Hatsuda , Yoshio Irie , Teruaki Fujiwara
发明人： Kinya Nagasuna , Katsuhiro Kajikawa , Takumi Hatsuda , Yoshio Irie , Teruaki Fujiwara
IPC分类号： C08F6/00
CPC分类号： C08F6/001
摘要： An absorbent resin is produced by a method which comprises adding to 100 parts by weight of an absorbent resin powder an aqueous liquid containing 7 to 100 parts by weight of water and a reducing substance in the presence of 0.01 to 5 parts by weight of at least one additive selected from the group consisting of water-insoluble fine powders and surfactants. The absorbent resin thus produced excels in absorption properties and exhibits a low residual monomer content.

5. 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。

6. 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。

7. 发明授权

US5026800A Water-absorbent resin and production process 失效
标题翻译：吸水树脂及生产工艺
公开(公告)号：US5026800A
公开(公告)日：1991-06-25
申请号：US371175
申请日：1989-06-26
申请人： Kazumasa Kimura , Kinya Nagasuna , Takashi Namba , Kenji Kadonaga , Koji Miyake , Tadao Shimomura
发明人： Kazumasa Kimura , Kinya Nagasuna , Takashi Namba , Kenji Kadonaga , Koji Miyake , Tadao Shimomura
IPC分类号： C08F220/06 , A61L15/24 , C08F2/08 , C08F2/32
CPC分类号： C08J3/12 , C08F2/32 , C08J2300/14
摘要： Water-absorbent resins having an average particle diameter of 100 to 600 .mu.m and a particle diameter distribution of 0.35 or less are prepared by polymerizing an aqueous solution of a water-soluble ethylenically unsaturated monomer, pulverizing and sieving the gel-like polymer so obtained, and crosslinking the surface of the polymer powder. In an alternative process, an aqueous solution of the monomer having a viscosity greater than 15 cps is dispersed in a hydrophobic organic solvent and polymerized to obtain a polymer powder, and the surface of the polymer powder is crosslinked.

8. 发明授权

US4973632A Production process for water-absorbent resin 失效
标题翻译：吸水树脂的生产工艺
公开(公告)号：US4973632A
公开(公告)日：1990-11-27
申请号：US371174
申请日：1989-06-26
申请人： Kinya Nagasuna , Takashi Namba , Koji Miyake , Kazumasa Kimura , Tadao Shimomura
发明人： Kinya Nagasuna , Takashi Namba , Koji Miyake , Kazumasa Kimura , Tadao Shimomura
IPC分类号： C08F220/06 , A61L15/24 , C08F2/08 , C08F2/32
CPC分类号： C08F2/32
摘要： This invention relates to a water-absorbent resin of a new, novel type obtained from polymerization of water-soluble ethylenically unsaturated monomer and a process for producing this resin.The water-absorbent resin in this invention has average particle diameter in a specially defined range and a narrow range of particle distribution, being superior in water-absorption capacity, and also, being superior in handling properties in a point of that, when being mixed with liquid, formation of a fish-eye is absent. The water-absorbent resin shows an angle-lacking, non-sphere shape and, in a case of shape like this, is superior in handling properties in a point that being hard in falling off from an basis material.Although the production process is performed to get a water-absorbent resin by carrying out polymerization in a reverse-phase suspension polymerization method, since the aqueous monomer solution is chosen from a specially defined viscosity range and dispersed and suspended by using a specially defined dispersing agent, a water-absorbent resin is easily obtainable wherein, not only the average particle diameter is controlled by adjusting the viscosity of an aqueous monomer solution, but also the particle diameter distribution is narrow. The water-absorbent resin obtained shows that a water-soluble component is small, so that it is very good for sanitary reasons. In this method, it is possible to vary the particle shape by changing up and down the viscosity of an aqueous monomer solution in an above-described specially defined range.The water-absorbent resin in this invention, because of having the above-described properties, is preferably used for sanitary materials and the like.

9. 发明授权

US06335406B1 Method for production of absorbent resin excelling in durability 失效
标题翻译：制造耐用性优异的吸水性树脂的方法
公开(公告)号：US06335406B1
公开(公告)日：2002-01-01
申请号：US08026167
申请日：1993-03-01
申请人： Kinya Nagasuna , Kenji Kadonaga , Kazumasa Kimura , Tadao Shimomura
发明人： Kinya Nagasuna , Kenji Kadonaga , Kazumasa Kimura , Tadao Shimomura
IPC分类号： C08F200
CPC分类号： C08F220/04
摘要： A method for the production of (D) an absorbent resin excelling in durability, which method comprises polymerizing (A) 30% by weight to saturated concentration of (A) an aqueous water-soluble ethylenically unsaturated monomer solution containing (B) 0.005 to 5 mol % of a cross-linking agent and (C) 0.001 to 1 mol % of a water-soluble chain transfer agent, both based on the amount of said monomer (A), and if necessary, the surface region of the resultant absorbent resin (D) is cross-linked with (E) a hydrophilic cross-linking agent capable of reacting with the functional group of the absorbent resin and an absorbent resin obtained by such method.
摘要翻译：一种制备（D）耐久性优异的吸水树脂的方法，该方法包括将（A）含有（B）0.005-5的（A）水溶性烯属不饱和单体溶液的饱和浓度为30重量％的（A）摩尔％的交联剂和（C）0.001〜1摩尔％的水溶性链转移剂，均基于所述单体（A）的量，如果需要，所得吸收性树脂的表面积（D）与（E）能够与吸收性树脂的官能团反应的亲水性交联剂和通过这种方法得到的吸收性树脂交联。

10. 发明授权

US6087002A Water absorbent resin 失效
标题翻译：吸水树脂
公开(公告)号：US6087002A
公开(公告)日：2000-07-11
申请号：US967209
申请日：1997-10-29
申请人： Kazumasa Kimura , Kinya Nagasuna , Takashi Namba , Kenji Kadonaga , Koji Miyake , Tadao Shimomura
发明人： Kazumasa Kimura , Kinya Nagasuna , Takashi Namba , Kenji Kadonaga , Koji Miyake , Tadao Shimomura
IPC分类号： C08F2/32 , B32B5/14 , B32B27/26
CPC分类号： C08F2/32 , Y10S526/93 , Y10T428/2982
摘要： A process for producing water-absorbent resins having an average particle diameter of 100 to 600 .mu.m and a particle diameter distribution of 0.35 or less by polymerizing an aqueous solution of a water-soluble ethylenically unsaturated monomer, pulverizing and sieving the polymer so obtained, and crosslinking the surface of the polymer powder.
摘要翻译：通过聚合水溶性烯键式不饱和单体的水溶液，对所得聚合物进行粉碎和筛分，生产平均粒径为100-600μm，粒径分布为0.35或更小的吸水性树脂的方法，并交联聚合物粉末的表面。

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