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1. 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。

2. 发明授权

US5807361A Blood-absorbent resin composition and absorbent articles 失效
标题翻译：吸血性树脂组合物和吸收制品
公开(公告)号：US5807361A
公开(公告)日：1998-09-15
申请号：US732468
申请日：1996-10-29
申请人： Katsuhiro Kajikawa , Takumi Hatsuda , Masatoshi Nakamura
发明人： Katsuhiro Kajikawa , Takumi Hatsuda , Masatoshi Nakamura
IPC分类号： A61L15/16 , A61L15/24 , A61L15/42 , C08L101/12 , A61L13/16 , C08J9/28
CPC分类号： C08L101/12 , A61L15/16 , A61L15/24 , A61L15/42
摘要： A blood-absorbable resin composition characterized by having a blood area ratio relative to sheep blood of not less than 30% at a basis weight of 150 g/m.sup.2 and an absorbent article containing the composition. The blood-absorbable resin composition of this invention possesses an excellent ability to absorb blood and, therefore, is highly useful for sanitary napkins, tampons, medical blood-absorbable articles, trauma protectors, trauma healing materials, and reagents for treating liquid refuses from surgical operations.
摘要翻译： PCT No.PCT / JP96 / 00576 Sec。 371日期1996年10月29日第 102（e）日期1996年10月29日PCT 1996年3月8日PCT公布。出版物WO96 / 28515 日本1996年9月19日吸收血液的树脂组合物，其特征在于，相对于羊血的血液面积比为150g / m 2以上的基重为30％以上，含有该组合物的吸收性物品。本发明的吸收血液的树脂组合物具有优异的吸收血液的能力，因此对于卫生巾，卫生棉条，医用吸收血液的制品，创伤保护剂，创伤愈合材料和用于治疗手术液体拒药的试剂非常有用操作。

3. 发明授权

US10301398B2 Production method of water absorbent resin powder and package of water absorbent resin powder 有权
公开(公告)号：US10301398B2
公开(公告)日：2019-05-28
申请号：US12308803
申请日：2007-07-19
申请人： Katsuhiro Kajikawa , Sumio Okuda , Kazumasa Konishi , Kunihiko Ishizaki
发明人： Katsuhiro Kajikawa , Sumio Okuda , Kazumasa Konishi , Kunihiko Ishizaki
IPC分类号： C08F2/10 , C08J7/12
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.

4. 发明申请

US20070149691A1 Process for continuous production of water-absorbent resin product 审中-公开
公开(公告)号：US20070149691A1
公开(公告)日：2007-06-28
申请号：US11708342
申请日：2007-02-21
申请人： Kunihiko Ishizaki , Katsuhiro Kajikawa
发明人： Kunihiko Ishizaki , Katsuhiro Kajikawa
IPC分类号： C08G18/42
CPC分类号： C08J3/005 , C08J3/12 , C08J3/245 , C08J2300/14 , Y10T428/2982
摘要： There is disclosed a process for continuous production of a water-absorbent resin product by which the water-absorbent resin product having high properties can continuously be produced easily and inexpensively with stable constant quality. In addition, there is disclosed a water-absorbent resin product having high properties and being stable in quality. The process comprises the following steps of: (A) measuring a water-absorbent resin by its predetermined property and/or its predetermined component content, wherein the water-absorbent resin comes being continuously produced via a classification step and/or a surface-modifying step; (B) separating a predetermined amount of water-absorbent resin (a) from the water-absorbent resin that comes being continuously produced, wherein the water-absorbent resin (a) is a water-absorbent resin which displays not less than a definite value and/or a water-absorbent resin which displays not more than a definite value as to the predetermined property and/or the predetermined component content in accordance with results of the aforementioned measurement; and (C) mixing at least a portion of the aforementioned separated predetermined amount of water-absorbent resin (a) into a water-absorbent resin that comes being continuously produced via a classification step and/or a surface-modifying step on the same or another production line.

5. 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℃。

6. 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。

7. 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.

8. 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。

9. 发明授权

US06727345B2 Continuous production process for water-absorbent resin powder and powder surface detector used therefor 有权
标题翻译：吸水树脂粉末和粉末表面检测仪的连续生产工艺
公开(公告)号：US06727345B2
公开(公告)日：2004-04-27
申请号：US10183381
申请日：2002-06-28
申请人： Katsuhiro Kajikawa , Toru Nishioka , Hirotama Fujimaru , Kunihiko Ishizaki
发明人： Katsuhiro Kajikawa , Toru Nishioka , Hirotama Fujimaru , Kunihiko Ishizaki
IPC分类号： C08J300
CPC分类号： C08J3/12 , B29B9/12 , B29B9/16 , B29B13/021 , B29B2009/125 , B29B2009/163 , B29K2105/251 , B29K2995/0092 , C08J2333/08 , G01F23/44
摘要： A surface-modified water-absorbent resin powder is produced continuously with high productivity in a state where the particle diameter distribution is narrow and where the properties are high by a process comprising a polymerizing step, a drying step, a pulverizing step, a classifying step, and a surface-modifying step, and further, conveying steps of connecting them, wherein the conveying steps include at least two hoppers for storing the water-absorbent resin powder. A powder surface detector used favorably for this process includes a float hung down by a hanging line.
摘要翻译：通过包括聚合步骤，干燥步骤，粉碎步骤，分级步骤在内的方法，在粒径分布窄并且性能高的状态下，以高生产率连续生产表面改性的吸水性树脂粉末以及表面修饰工序，进一步地连接它们的输送步骤，其中输送步骤包括至少两个储存吸水性树脂粉末的料斗。用于该方法的粉末表面检测器包括悬挂在悬挂线上的浮子。

10. 发明授权

US06716894B2 Water-absorbent resin powder and its production process and uses 有权
标题翻译：吸水树脂粉及其生产工艺及用途
公开(公告)号：US06716894B2
公开(公告)日：2004-04-06
申请号：US10187959
申请日：2002-07-03
申请人： Katsuhiro Kajikawa , Toru Nishioka , Hirotama Fujimaru , Kunihiko Ishizaki
发明人： Katsuhiro Kajikawa , Toru Nishioka , Hirotama Fujimaru , Kunihiko Ishizaki
IPC分类号： C08F246
CPC分类号： C08J3/28 , B01J20/26 , B01J20/261 , B01J20/267 , C08J2300/14 , Y10S428/913 , Y10S524/906 , Y10S526/93 , Y10T428/2982 , Y10T428/31855
摘要： The present invention provides: a water-absorbent resin powder, which includes no fine metallic foreign substance, and in which the deterioration is suppressed; its production process; and uses. The present invention production process for a water-absorbent resin powder comprises the steps of: polymerizing an unsaturated monomer; and drying the resultant crosslinked hydrogel polymer, wherein the water-absorbent resin powder has a crosslinked structure and a mass-average particle diameter of 300 to 600 &mgr;m wherein the ratio of fine particles having particle diameters of not larger than 150 &mgr;m is less than 10 mass % of the water-absorbent resin powder, with the production process being characterized by further comprising a magnetic-flux irradiation step of passing a magnetic field having a magnetic flux density of not less than 0.05 Wb/m2 through the water-absorbent resin powder after the drying step in the production process.
摘要翻译：本发明提供：不含金属异物的吸水性树脂粉末，其劣化被抑制; 其生产工艺; 并使用。本发明的吸水性树脂粉末的制造方法包括以下步骤：使不饱和单体聚合; 并干燥得到的交联水凝胶聚合物，其中吸水性树脂粉末具有交联结构，质量平均粒径为300-600μm，其中粒径不大于150μm的细颗粒的比例小于10 质量％的吸水性树脂粉末，其制造方法的特征在于进一步包括磁通照射步骤，使具有不小于0.05Wb / m 2的磁通密度的磁场通过水 - 吸收性树脂粉末在干燥步骤后的生产过程中。

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