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1. 发明授权

US5532323A Method for production of absorbent resin 失效
标题翻译：吸水树脂的生产方法
公开(公告)号：US5532323A
公开(公告)日：1996-07-02
申请号：US26407
申请日：1993-03-04
申请人： Kazutaka Yano , Katsuhiro Kajikawa , Kinya Nagasuna , Yoshio Irie
发明人： Kazutaka Yano , Katsuhiro Kajikawa , Kinya Nagasuna , Yoshio Irie
IPC分类号： A61L15/60 , C08F220/04 , C08F8/14 , C08J3/24
CPC分类号： C08F220/04 , A61L15/60
摘要： An absorbent resin exhibiting a high absorption ratio, having only a small water-soluble component content, and have excellent gel stability to withstand the effect of aging is produced. The production of the absorbent resin comprises a step of polymerizing a water-soluble monoethylenically unsaturated monomer by using, in a proportion of 0.01-0.3 mol % based on the amount of the water-soluble monoethylenically unsaturated monomer, a cross-linking agent having at least one group of the following formula I: ##STR1## wherein R.sup.1 is an alkylene group of 2 to 4 carbon atoms interposed between two polymerizing unsaturated groups in the molecular unit thereof and then heat-treating the resin produced by the polymerization at a temperature in the range of from 160.degree. to 230.degree. C.
摘要翻译：产生具有高吸收比，仅具有小的水溶性组分含量并且具有优异的凝胶稳定性以抵抗老化的效果的吸收性树脂。吸收性树脂的制造包括以水溶性单烯属不饱和单体的量为基准，以水溶性单烯键式不饱和单体的量计，以0.01-0.3摩尔％的比例使用水溶性单烯属不饱和单体的交联剂至少一组下列通式I：（CH2CH2OR1O）（I）其中R1是分子单元中两个聚合不饱和基团之间插入2至4个碳原子的亚烷基，然后热处理由聚合产生的树脂温度范围为160〜230℃。

2. 发明授权

US5478879A Method for production of absorbent resin 失效
标题翻译：吸水树脂的生产方法
公开(公告)号：US5478879A
公开(公告)日：1995-12-26
申请号：US822916
申请日：1992-01-21
申请人： Katsuhiro Kajikawa , Yoshihiko Masuda , Kinya Nagasuna , Yoshio Irie
发明人： Katsuhiro Kajikawa , Yoshihiko Masuda , Kinya Nagasuna , Yoshio Irie
IPC分类号： C08F2/10 , C08J3/00 , C08K3/20 , C08L33/00
CPC分类号： C08F2/10 , Y10S524/916
摘要： A method for the production of an absorbent resin, which method comprises mixing 100 parts by weight of (A) a hydrated gel of absorbent resin which is resulted from aqueous solution polymerization having a polymerization ratio in the range of from 60 to 99%, an average particle diameter in the range of from 0.1 to 200 mm, a water content in the range of from 30 to 90% by weight, and a temperature in the range of from 40.degree. to 110.degree. C., with from 1 to 50 parts by weight of (B) a substantially dry fine absorbent resin powder having an average particle diameter smaller than the average particle diameter assumed by said hydrated gel of absorbent resin (A) while in a dried state, then raising the polymerization ratio of said hydrated gel of absorbent resin (A) to a level higher than the polymerization ratio of said hydrated gel when being mixed.
摘要翻译：一种制造吸收性树脂的方法，该方法包括将100重量份由（A）由聚合率为60-99％范围的水溶液聚合得到的吸水性树脂的水合凝胶，平均粒径为0.1〜200mm，水含量为30〜90重量％，温度为40〜110℃，1〜50份（B）在干燥状态下，平均粒径小于由吸水性树脂（A）的所述水合凝胶构成的平均粒径的基本上干燥的细小吸水树脂粉末，然后提高所述水合凝胶的聚合比例的吸水性树脂（A）的混合比例高于所述水合凝胶的混合比。

3. 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.

4. 发明授权

US6103785A 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：US6103785A
公开(公告)日：2000-08-15
申请号：US275071
申请日：1999-03-23
申请人： Katsuhiro Kajikawa , Kinya Nagasuna
发明人： Katsuhiro Kajikawa , Kinya Nagasuna
IPC分类号： A61L15/60 , C08K7/02
CPC分类号： A61L15/60
摘要： The present invention provides: a water-absorbing agent which has high absorption capacity, fast absorption speed, and excellent liquid permeability; and a production process and a use for such a water-absorbing agent. A water-absorbent fine particle having a lower absorption capacity than a water-absorbent resin particle is fixed to the surface of the water-absorbent resin particle, or portions having a higher crosslinking density than internal portions are discontinuously present in the neighborhood of the surface of the water-absorbent resin particle. In addition, the water-absorbing agent is produced using a water-absorbent crosslinking agent which is swellable in itself.
摘要翻译：本发明提供吸收剂吸收性高，吸收速度快，透液性优异的吸水剂。以及这种吸水剂的制造方法和用途。将具有比吸水性树脂颗粒吸收能力低的吸水性细颗粒固定在吸水性树脂颗粒的表面上，或者表面附近具有比内部部分高的交联密度的部分不连续地存在的吸水性树脂颗粒。此外，吸水剂是使用本身可溶胀的吸水性交联剂制造的。

5. 发明授权

US5866678A Absorbent and method for production of absorbent resin 失效
标题翻译：吸收剂和吸收树脂生产方法
公开(公告)号：US5866678A
公开(公告)日：1999-02-02
申请号：US802284
申请日：1997-02-20
申请人： Katsuhiro Kajikawa , Kinya Nagasuna , Yoshihiko Masuda
发明人： Katsuhiro Kajikawa , Kinya Nagasuna , Yoshihiko Masuda
IPC分类号： A61L15/24 , C08F6/00 , C08F6/10
CPC分类号： C08F6/006 , A61L15/24
摘要： A method for the production of an absorbent resin having a very small residual monomer content either by adding to an absorbent resin powder a substance capable of reacting with the residual monomer in the absorbent resin powder thereby forming an absorbent resin composition having a water content in the range of 10 to 70% by weight and heat-treating the absorbent resin composition at a temperature in the range of 100.degree. to 200 .degree. C. while retaining the water content of the absorbent resin or by adding to an absorbent resin powder a substance capable of reacting with the residual monomer in the absorbent resin powder thereby forming an absorbent resin composition having a water content in the range of 25 to 55% by weight, heat-treating the absorbent resin composition at a temperature in the range of 120.degree. to 200 .degree. C. while retaining the water content of the absorbent resin composition in the range mentioned above, and then drying the absorbent resin composition at a temperature not exceeding 120.degree. C.
摘要翻译：通过向吸收性树脂粉末中添加能够与吸收性树脂粉末中的残留单体反应的物质，从而形成吸水性树脂组合物，其具有非常小的残留单体含量的方法范围为10〜70重量％，并且在100〜200℃的温度范围内对吸收性树脂组合物进行热处理，同时保持吸收性树脂的含水量，或者通过向吸收性树脂粉末中添加能够与吸收性树脂粉末中的残留单体反应，从而形成水分为25〜55重量％的吸水性树脂组合物，在120〜200℃的温度范围内对吸收性树脂组合物进行热处理同时将吸水性树脂组合物的水分保持在上述范围内，然后在n温度下干燥吸收性树脂组合物超过120℃

6. 发明授权

US06998447B2 Method for production of hydrophilic resin 失效
公开(公告)号：US06998447B2
公开(公告)日：2006-02-14
申请号：US10108572
申请日：2002-03-29
申请人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
发明人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
IPC分类号： C08F8/42 , C08F8/44 , C08F20/06 , C08F120/06 , C08F220/06
CPC分类号： C08F20/04 , A61L15/60 , C08L33/02
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.

7. 发明申请

US20050113542A1 Method for production of hydrophilic resin 失效
标题翻译：生产亲水性树脂的方法
公开(公告)号：US20050113542A1
公开(公告)日：2005-05-26
申请号：US11014969
申请日：2004-12-20
申请人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
发明人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
IPC分类号： A61L15/60 , C08F20/04 , C08F20/06
CPC分类号： C08F20/04 , A61L15/60 , C08L33/02
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.
摘要翻译：在制备丙烯酸酯聚合物时，通过以下步骤制备中和度在30-100mol％范围内并含有50-100mol％丙烯酸酯的水溶性不饱和单体，然后使单体聚合，用于生产亲水性树脂，其包括使用具有不超过1,000ppm的β-羟基丙酸（盐）含量的水溶性不饱和单体。通过该方法获得的亲水性树脂显示出优异的物理性能，并且仅具有小的残留单体含量。此外，残留的单体含量也不会发生，也不会在任何使用条件下增加。

8. 发明授权

US07078458B2 Method for production of hydrophilic resin 失效
公开(公告)号：US07078458B2
公开(公告)日：2006-07-18
申请号：US11014969
申请日：2004-12-20
申请人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
发明人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
IPC分类号： C08L31/00 , C08F20/06
CPC分类号： C08F20/04 , A61L15/60 , C08L33/02
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.

9. 发明授权

US06388000B1 Method for production of hydrophilic resin 失效
标题翻译：生产亲水性树脂的方法
公开(公告)号：US06388000B1
公开(公告)日：2002-05-14
申请号：US08427734
申请日：1995-04-24
申请人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
发明人： Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
IPC分类号： C08F2006
CPC分类号： C08F20/04 , A61L15/60 , C08L33/02
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 &bgr;-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.
摘要翻译：在制备丙烯酸酯聚合物时，通过以下步骤制备中和度在30-100mol％范围内并含有50-100mol％丙烯酸酯的水溶性不饱和单体，然后使单体聚合，用于生产亲水性树脂，其包括使用具有不超过1,000ppm的β-羟基丙酸（盐）含量的水溶性不饱和单体。通过该方法获得的亲水性树脂显示出优异的物理性能，并且仅具有小的残留单体含量。此外，残留的单体含量也不会发生，也不会在任何使用条件下增加。

10. 发明授权

US5264495A Method for production of salt-resistant absorbent resin 失效
标题翻译：生产耐盐吸水树脂的方法
公开(公告)号：US5264495A
公开(公告)日：1993-11-23
申请号：US691820
申请日：1991-04-26
申请人： Yoshio Irie , Katsuhiro Kajikawa , Hitoshi Takahashi , Teruaki Fujiwara
发明人： Yoshio Irie , Katsuhiro Kajikawa , Hitoshi Takahashi , Teruaki Fujiwara
IPC分类号： A61L15/60 , C08F265/06 , C08F291/00 , C08F265/02 , C08F267/02
CPC分类号： A61L15/60 , C08F265/06 , C08F291/00
摘要： A method for the production of a salt-resistant absorbent resin, which comprises subjecting an aqueous solution of at least one monomer component (A) selected from the group consisting of unsaturated carboxylic acids and salts thereof to aqueous solution polymerization in the presence of from 1 to 30 parts by weight, based on 100 parts by weight of said monomer component (A), of an absorbent resin (B).

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