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1. 发明申请

US20100009846A1 PARTICLE-SHAPED WATER ABSORBING AGENT AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：颗粒形吸水剂及其制造方法
公开(公告)号：US20100009846A1
公开(公告)日：2010-01-14
申请号：US12524989
申请日：2008-02-04
申请人： Hiroyuki Ikeuchi , Hirotama Fujimaru , Makoto Nagasawa , Kazuhiko Sakamoto , Shigeru Sakamoto , Kazushi Torii , Ryoko Tahara
发明人： Hiroyuki Ikeuchi , Hirotama Fujimaru , Makoto Nagasawa , Kazuhiko Sakamoto , Shigeru Sakamoto , Kazushi Torii , Ryoko Tahara
IPC分类号： B01J20/26 , C08F20/06 , B32B5/16
CPC分类号： C08F2/44 , A61F2013/530583 , C08F220/06 , C08F222/1006 , C08K5/0008 , C08L33/02 , C08L71/02 , Y10T428/2982 , C08L2666/22
摘要： An object of the present invention is to provide a particle-shaped water absorbing agent having a remarkably improved surface color and excellent water-absorbing properties (better water absorption capacity, and lower water soluble content and residual monomer content) at the same time. In order to attain the object, a particle-shaped water absorbing agent according to the present invention is a particle-shaped water absorbing agent whose main component is a polyacrylic acid and/or a salt thereof, the particle-shaped water absorbing agent having a surface color of Hunter b value in a range of −5 to 10, and having a cross-linking absorption property index (CPI) in a range of 1 to 100, the CPI defined by the following two equations: GEX=(GVs+17)/Ln (water soluble content) Equation 1; CPI=(GEX/residual monomer content)×100 Equation 3 where GVs is gel volume in saline, Ln (water soluble content) is a logarithm natural of water soluble content.
摘要翻译：本发明的目的是提供一种具有显着改善的表面颜色和优异的吸水性（更好的吸水能力，更低的水溶性含量和残留的单体含量）的颗粒状吸水剂。为了达到上述目的，本发明的颗粒状吸水剂是主要成分为聚丙烯酸和/或其盐的颗粒状吸水剂，该颗粒状吸水剂具有 Hunter b值的表面颜色在-5至10的范围内，并且交联吸收特性指数（CPI）在1至100的范围内，由以下两个等式定义的CPI：GEX =（GVs + 17 ）/ Ln（水溶性含量）等式1; CPI =（GEX /残留单体含量）×100等式3其中GV是盐水中的凝胶体积，Ln（水溶性含量）是水溶性含量的对数自然。

2. 发明授权

US09187579B2 Particle-shaped water absorbing agent and method for producing the same 有权
标题翻译：颗粒状吸水剂及其制造方法
公开(公告)号：US09187579B2
公开(公告)日：2015-11-17
申请号：US12524989
申请日：2008-02-04
申请人： Hiroyuki Ikeuchi , Hirotama Fujimaru , Makoto Nagasawa , Kazuhiko Sakamoto , Shigeru Sakamoto , Kazushi Torii , Ryoko Tahara
发明人： Hiroyuki Ikeuchi , Hirotama Fujimaru , Makoto Nagasawa , Kazuhiko Sakamoto , Shigeru Sakamoto , Kazushi Torii , Ryoko Tahara
IPC分类号： B01J20/22 , B01J20/26 , C08F20/06 , C08F2/44 , C08F220/06 , C08L33/02 , A61F13/53 , C08F222/10 , C08K5/00 , C08L71/02
CPC分类号： C08F2/44 , A61F2013/530583 , C08F220/06 , C08F222/1006 , C08K5/0008 , C08L33/02 , C08L71/02 , Y10T428/2982 , C08L2666/22
摘要： An object of the present invention is to provide a particle-shaped water absorbing agent having a remarkably improved surface color and excellent water-absorbing properties (better water absorption capacity, and lower water soluble content and residual monomer content) at the same time. In order to attain the object, a particle-shaped water absorbing agent according to the present invention is a particle-shaped water absorbing agent whose main component is a polyacrylic acid and/or a salt thereof, the particle-shaped water absorbing agent having a surface color of Hunter b value in a range of −5 to 10, and having a cross-linking absorption property index (CPI) in a range of 1 to 100, the CPI defined by the following two equations: GEX=(GVs+17)/Ln (water soluble content); Equation 1: CPI=(GEX/residual monomer content)×100 Equation 3: where GVs is gel volume in saline, Ln (water soluble content) is a logarithm natural of water soluble content.
摘要翻译：本发明的目的是提供一种具有显着改善的表面颜色和优异的吸水性（更好的吸水能力，更低的水溶性含量和残留的单体含量）的颗粒状吸水剂。为了达到上述目的，本发明的颗粒状吸水剂是主要成分为聚丙烯酸和/或其盐的颗粒状吸水剂，该颗粒状吸水剂具有 Hunter b值的表面颜色在-5至10的范围内，并且交联吸收特性指数（CPI）在1至100的范围内，由以下两个等式定义的CPI：GEX =（GVs + 17 ）/ Ln（水溶性成分）; 方程1：CPI =（GEX /残留单体含量）×100等式3：其中GV是盐水中的凝胶体积，Ln（水溶性含量）是水溶性含量的对数自然。

3. 发明授权

US08822373B2 Particulate water absorbing agent and production method thereof 有权
标题翻译：颗粒吸水剂及其制备方法
公开(公告)号：US08822373B2
公开(公告)日：2014-09-02
申请号：US12307922
申请日：2007-08-30
申请人： Hirotama Fujimaru , Eri Nagasawa , Masatoshi Nakamura , Hiroyuki Ikeuchi , Makoto Nagasawa , Ryoko Tahara
发明人： Hirotama Fujimaru , Eri Nagasawa , Masatoshi Nakamura , Hiroyuki Ikeuchi , Makoto Nagasawa , Ryoko Tahara
IPC分类号： B01J20/26 , B01J20/30 , A61L15/24 , A61L15/60 , C08F120/06 , C08F220/06 , A61F13/53
CPC分类号： A61L15/60 , A61F2013/530481 , A61L15/24 , C08F120/06 , C08F220/06 , Y10T428/2982 , C08L33/02
摘要： A particulate water absorbing agent includes a polyacrylic acid and/or a salt thereof water absorbent resin as a main component, wherein the water absorbent resin includes α-hydroxycarboxylic acid and/or a salt thereof, and the absorbing agent satisfies a specific particle size distribution and a specific water absorbing performance, thereby solving the conventional problems. Further, a production method of the water absorbing agent is characterized in that α-hydroxycarboxylic acid and/or a salt thereof is added to (a) a monomer aqueous solution whose main component is acrylic acid and/or a salt thereof and which is being cross-linked and polymerized or (b) a hydrogel polymer after the polymerization. As a result, in the particulate water absorbing agent containing the water absorbent resin as a main component, it is possible to realize both excellent water absorbing performance and excellent coloring prevention effect. Further, it is possible to provide an absorbing article particulate water absorbing agent which is suitable for practical use.
摘要翻译：颗粒状吸水剂包括聚丙烯酸和/或其盐类吸水性树脂作为主要成分，其中吸水性树脂包括α-羟基羧酸和/或其盐，并且吸收剂满足特定的粒度分布和特定的吸水性能，从而解决了常规问题。此外，吸水剂的制造方法的特征在于，在（a）主要成分为丙烯酸和/或其盐的单体水溶液中加入α-羟基羧酸和/或其盐，其为交联并聚合，或（b）聚合后的水凝胶聚合物。结果，在含有吸水性树脂作为主要成分的颗粒状吸水剂中，可以实现优异的吸水性能和优异的防着色效果。此外，可以提供适合于实际应用的吸收性物品颗粒状吸水剂。

4. 发明申请

US20090312183A1 PARTICULATE WATER ABSORBING AGENT AND PRODUCTION METHOD THEREOF 有权
标题翻译：颗粒吸水剂及其生产方法
公开(公告)号：US20090312183A1
公开(公告)日：2009-12-17
申请号：US12307922
申请日：2007-08-30
申请人： Hirotama Fujimaru , Eri Nagasawa , Masatoshi Nakamura , Hiroyuki Ikeuchi , Makoto Nagasawa , Ryoko Tahara
发明人： Hirotama Fujimaru , Eri Nagasawa , Masatoshi Nakamura , Hiroyuki Ikeuchi , Makoto Nagasawa , Ryoko Tahara
IPC分类号： B01J20/26 , C08G63/06 , B32B5/16
CPC分类号： A61L15/60 , A61F2013/530481 , A61L15/24 , C08F120/06 , C08F220/06 , Y10T428/2982 , C08L33/02
摘要： A particulate water absorbing agent includes a polyacrylic acid (salt) water absorbent resin as a main component, wherein the water absorbent resin includes α-hydroxycarboxylic acid (salt), and the absorbing agent satisfies a specific particle size distribution and a specific water absorbing performance, thereby solving the conventional problems. Further, a production method of the water absorbing agent is characterized in that α-hydroxycarboxylic acid (salt) is added to (a) a monomer aqueous solution whose main component is acrylic acid (salt) and which is being cross-linked and polymerized or (b) a hydrogel polymer after the polymerization. As a result, in the particulate water absorbing agent containing the water absorbent resin as a main component, it is possible to realize both excellent water absorbing performance and excellent coloring prevention effect. Further, it is possible to provide an absorbing article particulate water absorbing agent which is suitable for practical use.
摘要翻译：颗粒状吸水剂包括聚丙烯酸（盐）吸水性树脂作为主要成分，其中吸水性树脂包括α-羟基羧酸（盐），并且吸收剂满足特定的粒度分布和比吸水性能从而解决了常规问题。此外，吸水剂的制造方法的特征在于，在（a）主要成分为丙烯酸（盐）并且被交联聚合的单体水溶液中加入α-羟基羧酸（盐），或（b）聚合后的水凝胶聚合物。结果，在含有吸水性树脂作为主要成分的颗粒状吸水剂中，可以实现优异的吸水性能和优异的防着色效果。此外，可以提供适合于实际应用的吸收性物品颗粒状吸水剂。

5. 发明授权

US07312278B2 Water-absorbing agent and production process therefor, and sanitary material 有权
标题翻译：吸水剂及其生产工艺及卫生材料
公开(公告)号：US07312278B2
公开(公告)日：2007-12-25
申请号：US10333614
申请日：2002-06-07
申请人： Yasuhisa Nakashima , Hiroyuki Ikeuchi , Yasuhiro Fujita , Makoto Nagasawa , Shigeru Sakamoto , Yorimichi Dairoku , Katsuyuki Wada , Shinichi Fujino , Toshimasa Kitayama , Kazuhisa Hitomi
发明人： Yasuhisa Nakashima , Hiroyuki Ikeuchi , Yasuhiro Fujita , Makoto Nagasawa , Shigeru Sakamoto , Yorimichi Dairoku , Katsuyuki Wada , Shinichi Fujino , Toshimasa Kitayama , Kazuhisa Hitomi
IPC分类号： C08L33/02 , C08L63/00
CPC分类号： A61L15/60
摘要： There is provided: a production process for a water-absorbing agent having stable properties in a short time; and a water-absorbing agent. The production process comprises the step of blending an acid-group-containing water-absorbent resin powder with a noncrosslinkable water-soluble inorganic base and/or an irreducible alkaline-metal-salt pH buffer and further with a dehydratable crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, or comprises the step of blending an acid-group-containing water-absorbent resin powder with the above base and/or pH buffer and further with a crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, wherein the resin powder has a weight-average particle diameter of 300 to 600 μm wherein the ratio of fine powders having particle diameters of not larger than 150 μm in the resin powder is not more than 10 weight %.
摘要翻译：提供了一种在短时间内具有稳定性能的吸水剂的生产方法; 和吸水剂。生产方法包括将含酸基的吸水性树脂粉末与不可交联的水溶性无机碱和/或不可还原的碱金属盐pH缓冲剂以及可与酸反应的可脱水交联剂从而使树脂粉末进行交联处理，或者包括将含酸基的吸水性树脂粉末与上述碱和/或pH缓冲剂以及与酸基反应的交联剂进一步混合的步骤，由此使树脂粉末进行交联处理，其中树脂粉末的重均粒径为300〜600μm，其中树脂粉末中粒径不大于150μm的细粉末的比率不大于10重量％。

6. 发明申请

US20090305884A1 Method for Producing Water Absorbent Resin Particle 有权
标题翻译：生产吸水树脂颗粒的方法
公开(公告)号：US20090305884A1
公开(公告)日：2009-12-10
申请号：US12296808
申请日：2007-09-28
申请人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
发明人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
IPC分类号： B01J20/26
CPC分类号： C08J3/12 , B29B9/06 , B29B17/00 , C08J2300/14 , Y02W30/62
摘要： The present invention provides a method for producing a water absorbent resin particle, in high productivity, not only in a controlled manner of particle size but also enhancing fundamental property (absorption capacity or absorption capacity against pressure) of a water absorbent resin. A method for producing a water absorbent resin particle having the cross-linking polymerization step for an aqueous solution of an unsaturated monomer; the grain refining step for water-swellable, water-containing gel-like cross-linked polymer (a) obtained in the cross-linking polymerization step; the drying step for grain refined gel; and the crushing step for a dried substance, wherein, in the grain refining step for the water-swellable, water-containing gel-like cross-linked polymer (a), water-swellable, water-containing gel-like cross-linked polymer (b), having solid content or centrifuge retention capacity different from solid content or centrifuge retention capacity of the cross-linked polymer (a) by equal to or larger than 1%, is subjected to coexistence.
摘要翻译：本发明提供了一种生产吸水性树脂颗粒的方法，不仅以受控的粒度控制，而且提高了吸水性树脂的基本性能（吸收能力或抗吸收能力）。一种制备具有用于不饱和单体的水溶液的交联聚合步骤的吸水性树脂颗粒的方法; 在交联聚合步骤中获得的水溶胀性含水凝胶状交联聚合物（a）的晶粒细化步骤; 颗粒精制凝胶的干燥步骤; 和干物质的破碎步骤，其中在水溶胀性含水凝胶状交联聚合物（a）的晶粒细化工序中，水溶胀性含水凝胶状交联聚合物（b）具有不同于交联聚合物（a）的固体含量或离心保留能力等于或大于1％的固体含量或离心保留能力共存。

7. 发明授权

US09593212B2 Method for producing water absorbent resin particle 有权
标题翻译：吸水性树脂颗粒的制造方法
公开(公告)号：US09593212B2
公开(公告)日：2017-03-14
申请号：US12296808
申请日：2007-09-28
申请人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
发明人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
IPC分类号： C08J3/12 , B29B17/00
CPC分类号： C08J3/12 , B29B9/06 , B29B17/00 , C08J2300/14 , Y02W30/62
摘要： The present invention provides a method for producing a water absorbent resin particle, in high productivity, not only in a controlled manner of particle size but also enhancing fundamental property (absorption capacity or absorption capacity against pressure) of a water absorbent resin. A method for producing a water absorbent resin particle having the cross-linking polymerization step for an aqueous solution of an unsaturated monomer; the grain refining step for water-swellable, water-containing gel-like cross-linked polymer (a) obtained in the cross-linking polymerization step; the drying step for grain refined gel; and the crushing step for a dried substance, wherein, in the grain refining step for the water-swellable, water-containing gel-like cross-linked polymer (a), water-swellable, water-containing gel-like cross-linked polymer (b), having solid content or centrifuge retention capacity different from solid content or centrifuge retention capacity of the cross-linked polymer (a) by equal to or larger than 1%, is subjected to coexistence.
摘要翻译：本发明提供了一种生产吸水性树脂颗粒的方法，不仅以受控的粒度控制，而且提高了吸水性树脂的基本性能（吸收能力或抗吸收能力）。一种制备具有用于不饱和单体的水溶液的交联聚合步骤的吸水性树脂颗粒的方法; 在交联聚合步骤中获得的水溶胀性含水凝胶状交联聚合物（a）的晶粒细化步骤; 颗粒精制凝胶的干燥步骤; 和干物质的破碎步骤，其中在水溶胀性含水凝胶状交联聚合物（a）的晶粒细化工序中，水溶胀性含水凝胶状交联聚合物（b）具有不同于交联聚合物（a）的固体含量或离心保留能力等于或大于1％的固体含量或离心保留能力共存。

8. 发明授权

US09006134B2 Particulate water absorbing agent and manufacturing method of same 有权
标题翻译：颗粒吸水剂及其制造方法
公开(公告)号：US09006134B2
公开(公告)日：2015-04-14
申请号：US12503396
申请日：2009-07-15
申请人： Makoto Nagasawa , Hiroyuki Ikeuchi
发明人： Makoto Nagasawa , Hiroyuki Ikeuchi
IPC分类号： B01J20/26 , B01J20/02 , B01J20/22 , C08F20/06 , B01J20/28 , A61F13/53 , C08K5/17 , C08K3/32 , C08L33/02
CPC分类号： B01J20/28011 , A61F13/53 , B01J20/02 , B01J20/0211 , B01J20/0244 , B01J20/0248 , B01J20/0259 , B01J20/0281 , B01J20/0288 , B01J20/0296 , B01J20/045 , B01J20/046 , B01J20/048 , B01J20/22 , B01J20/223 , B01J20/26 , B01J20/261 , B01J20/267 , B01J20/28004 , B01J2220/46 , B01J2220/68 , C08K3/32 , C08K5/175 , C08L33/02
摘要： The application relates to the particulate water absorbing agent of the present invention composed primarily of a polyacrylic acid- or polyacrylate-based water absorbing resin and containing a chelating agent and a phosphorous compound. Accordingly, the particulate water absorbing agent composed primarily of a water absorbing resin achieves both excellent water absorbing properties and anti-coloring effect which would normally be incompatible. A particulate water absorbing agent for absorbent core is provided that is suitable for actual use.
摘要翻译：本申请涉及本发明的颗粒状吸水剂，主要由聚丙烯酸或聚丙烯酸酯类吸水树脂组成，并含有螯合剂和磷化合物。因此，主要由吸水性树脂组成的颗粒状吸水剂具有通常不相容的优异的吸水性和抗着色效果。提供适用于实际使用的吸收芯颗粒吸水剂。

9. 发明申请

US20090270538A1 PARTICULATE WATER-ABSORBENT POLYMER AND PRODUCTION METHOD THEREOF 有权
标题翻译：颗粒吸水聚合物及其制备方法
公开(公告)号：US20090270538A1
公开(公告)日：2009-10-29
申请号：US12501734
申请日：2009-07-13
申请人： Hiroyuki Ikeuchi , Makoto Nagasawa
发明人： Hiroyuki Ikeuchi , Makoto Nagasawa
IPC分类号： C08K5/49
CPC分类号： C08F2/44 , C08F220/06 , C08F222/1006 , C08J3/075 , C08J3/12 , C08J2300/14
摘要： An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer. The method enables to provide an excellent particulate water-absorbent polymer that realizes (i) long-term color stability and improvement in urine tolerance and (ii) absorbing property, which are in such a trade-off relationship. In this way, the above object is attained.
摘要翻译：本发明的目的是提供一种具有显着提高的长期颜色稳定性的颗粒状吸水性聚合物颗粒的制造方法，而不会对颗粒状吸水性聚合物的合成产生不利影响（例如延迟聚合）。该方法包括聚合单体水溶液（B）的步骤，所述单体水溶液（B）含有（i）能通过聚合形成颗粒状吸水聚合物的至少一种类型的单体（A），（ii）至少一种交联试剂，（iii）至少一种类型的聚合引发剂和（iv）相对于单体（A）不少于1质量％但不超过100质量ppm的有机磷化合物，以形成水凝胶聚合物，并干燥水凝胶聚合物。该方法能够提供一种优异的颗粒状吸水性聚合物，其实现（i）长期的颜色稳定性和尿耐受性的改善以及（ii）具有这种权衡关系的吸收性质。以这种方式，实现了上述目的。

10. 发明授权

US07935774B2 Particulate water-absorbent polymer and production method thereof 有权
标题翻译：颗粒状吸水性聚合物及其制造方法
公开(公告)号：US07935774B2
公开(公告)日：2011-05-03
申请号：US12501734
申请日：2009-07-13
申请人： Hiroyuki Ikeuchi , Makoto Nagasawa
发明人： Hiroyuki Ikeuchi , Makoto Nagasawa
IPC分类号： C08F20/06
CPC分类号： C08F2/44 , C08F220/06 , C08F222/1006 , C08J3/075 , C08J3/12 , C08J2300/14
摘要： An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer. The method enables to provide an excellent particulate water-absorbent polymer that realizes (i) long-term color stability and improvement in urine tolerance and (ii) absorbing property, which are in such a trade-off relationship. In this way, the above object is attained.
摘要翻译：本发明的目的是提供一种具有显着提高的长期颜色稳定性的颗粒状吸水性聚合物颗粒的制造方法，而不会对颗粒状吸水性聚合物的合成产生不利影响（例如延迟聚合）。该方法包括聚合单体水溶液（B）的步骤，所述单体水溶液（B）含有（i）能通过聚合形成颗粒状吸水聚合物的至少一种类型的单体（A），（ii）至少一种交联试剂，（iii）至少一种类型的聚合引发剂和（iv）相对于单体（A）不少于1质量％但不超过100质量ppm的有机磷化合物，以形成水凝胶聚合物，并干燥水凝胶聚合物。该方法能够提供一种优异的颗粒状吸水性聚合物，其实现（i）长期的颜色稳定性和尿耐受性的改善以及（ii）具有这种权衡关系的吸收性质。以这种方式，实现了上述目的。

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