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1. 发明授权

US06867269B2 Water-absorbent resin and production process therefor 有权
标题翻译：吸水树脂及其生产工艺
公开(公告)号：US06867269B2
公开(公告)日：2005-03-15
申请号：US10472048
申请日：2002-12-17
申请人： Shigeru Sakamoto , Yorimichi Dairoku , Yasuhiro Fujita , Yoshio Irie
发明人： Shigeru Sakamoto , Yorimichi Dairoku , Yasuhiro Fujita , Yoshio Irie
IPC分类号： A61L15/60 , C08F20/06 , C08F220/06
CPC分类号： C08F220/06 , A61L15/60 , C08F20/06 , Y10S524/916 , C08L33/02
摘要： The present invention provides such a production process that a low-cost water-absorbent resin having excellent quality can be obtained by reasonable steps in aqueous solution polymerization. The production process for a water-absorbent resin comprises a polymerization setup that includes the steps of: supplying an aqueous solution of a water-soluble unsaturated monomer component including a major proportion of acrylic acid and/or its salt into a polymerization vessel causing shearing action; and then carrying out polymerization, involving crosslinking, of the water-soluble unsaturated monomer and at the same time carrying out fine division of the resultant hydrogel; with the production process being characterized in that the aqueous solution of the water-soluble unsaturated monomer component as supplied into the polymerization vessel has a temperature of not lower than 40° C.
摘要翻译：本发明提供了这样一种制备方法，即通过在水溶液聚合中的合理步骤可以获得具有优良品质的低成本吸水性树脂。吸水性树脂的制造方法包括聚合装置，其包括以下步骤：将包含主要比例的丙烯酸和/或其盐的水溶性不饱和单体组分的水溶液供给到引起剪切作用的聚合容器中 ; 然后进行水溶性不饱和单体的交联聚合，同时进行所得水凝胶的细分; 其制造方法的特征在于，供给到聚合容器中的水溶性不饱和单体成分的水溶液的温度不低于40℃。

2. 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％。

3. 发明授权

US07378453B2 Surface crosslinking treatment method of water-absorbing resin powder 有权
标题翻译：吸水树脂粉末的表面交联处理方法
公开(公告)号：US07378453B2
公开(公告)日：2008-05-27
申请号：US10798346
申请日：2004-03-12
申请人： Kozo Nogi , Shigeru Sakamoto , Noriaki Mizutani , Yorimichi Dairoku , Kunihiko Ishizaki
发明人： Kozo Nogi , Shigeru Sakamoto , Noriaki Mizutani , Yorimichi Dairoku , Kunihiko Ishizaki
IPC分类号： C08J3/00 , C08J3/12
CPC分类号： C08J3/124 , C08J2300/14
摘要： A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-absorbing resin powder having excellent physical properties without causing deterioration in physical properties of resin. The surface crosslinking treatment method of a water-absorbing resin powder includes adding a surface crosslinking agent to a water-absorbing resin powder and heat treating the mixture, wherein (1) the water-absorbing resin powder after the heat treatment is stirred and cooled under an air flow; (2) the water-absorbing resin powder after the heat treatment is cooled under an air flow, and at the same time, at least a part of fine particles of the water-absorbing resin powder and/or the residual crosslinking agent is removed by the air flow; or (3) the water-absorbing resin powder after the heat treatment is cooled and simultaneously granulated, and preferably an aqueous solution is added to the water-absorbing resin powder at a temperature of 40-100° C. during the cooling treatment.
摘要翻译：公开了一种吸水性树脂粉末的表面交联处理方法，其可以克服在工业规模生产表面交联吸水性树脂粉末时遇到的生产中的各种问题，并且可以制备具有优异物理性能的吸水性树脂粉末而不会导致树脂的物理性能的劣化。吸水性树脂粉末的表面交联处理方法包括向吸水性树脂粉末中添加表面交联剂，对该混合物进行热处理，其中（1）将热处理后的吸水性树脂粉末在气流; （2）热处理后的吸水性树脂粉末在空气流下冷却，同时，吸水性树脂粉末和/或残留交联剂的至少一部分微粒被除去气流; 或者（3）将热处理后的吸水性树脂粉末冷却并同时造粒，优选在冷却处理期间在40〜100℃的温度下向吸水性树脂粉末中添加水溶液。

4. 发明申请

US20110313113A1 Polyacrylic water-absorbent resin powder and method for producing the same 有权
标题翻译：聚丙烯酸吸水性树脂粉末及其制造方法
公开(公告)号：US20110313113A1
公开(公告)日：2011-12-22
申请号：US13201701
申请日：2010-02-17
申请人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
发明人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08F222/20 , C08F2/34 , C08F2/04 , C08F8/00
CPC分类号： C08C19/00 , C08F2/10 , C08F2/16 , C08F2/34 , C08F8/00 , C08F20/10 , C08F220/06 , C08F222/20
摘要： A production method of the present invention is a polyacrylic water-absorbent resin powder production method including the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the acrylic monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after the step of polymerizing, fragmenting a hydrated gel crosslinked polymer obtained by polymerizing the acrylic monomer solution; and drying by heat the hydrated gel crosslinked polymer thus fragmented, the gas being dissolved and/or dispersed in the acrylic monomer solution by at least one of the methods (a) to (c): (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; and (c) introducing the gas with the acrylic monomer solution via fine holes. Accordingly, the production method of the present invention makes it possible to efficiently produce a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like.
摘要翻译：本发明的制造方法是聚丙烯酸类吸水性树脂粉末的制造方法，其特征在于，包括以下工序：制造溶解和/或分散有气体的丙烯酸类单体溶液; 在不存在表面活性剂的情况下或在不超过300ppm的表面活性剂的存在下聚合丙烯酸类单体溶液; 在通过聚合丙烯酸类单体溶液获得的水合凝胶交联聚合物聚合步骤期间或之后，并通过加热干燥由此分解的水合凝胶交联聚合物，气体通过方法（a）至（c）中的至少一种溶解和/或分散在丙烯酸单体溶液中：（a）向丙烯酸单体溶液施加压力和气体; （b）产生丙烯酸单体溶液和气体的旋流; 和（c）通过细孔将丙烯酸单体溶液引入气体。因此，本发明的制造方法能够有效地制造吸水率优异的吸水性树脂，而不会降低卫生用品等的吸液性。

5. 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。

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

US08791210B2 Polyacrylic water-absorbent resin powder and method for producing the same 有权
标题翻译：聚丙烯酸吸水性树脂粉末及其制造方法
公开(公告)号：US08791210B2
公开(公告)日：2014-07-29
申请号：US13201701
申请日：2010-02-17
申请人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
发明人： Shigeru Sakamoto , Yoshio Irie , Kozo Nogi , Kunihiko Ishizaki
IPC分类号： C08C19/00 , C08F20/10 , C08F222/20 , C08F2/34 , C08F8/00
CPC分类号： C08C19/00 , C08F2/10 , C08F2/16 , C08F2/34 , C08F8/00 , C08F20/10 , C08F220/06 , C08F222/20
摘要： A method for producing a polyacrylic water-absorbent resin powder includes the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after polymerizing, fragmenting the resulting hydrated gel crosslinked polymer; and drying the fragmented hydrated gel crosslinked polymer, the gas being dissolved and/or dispersed in the monomer solution by (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; or (c) introducing the gas with the acrylic monomer solution via fine holes. The production method efficiently produces a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like.
摘要翻译：聚丙烯酸吸水性树脂粉末的制造方法包括以下工序：制造溶解和/或分散有气体的丙烯酸类单体溶液; 在不存在表面活性剂的情况下或在不超过300ppm表面活性剂的存在下聚合单体溶液; 在聚合期间或之后，将所得水合凝胶交联聚合物破碎; 并且通过（a）向丙烯酸单体溶液和气体施加压力，干燥碎裂的水合凝胶交联聚合物，气体溶解和/或分散在单体溶液中; （b）产生丙烯酸单体溶液和气体的旋流; 或（c）通过细孔将丙烯酸单体溶液引入气体。制造方法有效地制造吸水率优异的吸水性树脂，而不会降低卫生用品等的吸液性。

8. 发明授权

US07288601B2 Method for production of water-absorbent resin and plow-shaped mixing device 有权
标题翻译：吸水树脂和犁式混合装置的生产方法
公开(公告)号：US07288601B2
公开(公告)日：2007-10-30
申请号：US10854881
申请日：2004-05-27
申请人： Kozo Nogi , Masazumi Sasabe , Kenji Kadonaga , Yoshio Irie , Shigeru Sakamoto , Koji Miyake
发明人： Kozo Nogi , Masazumi Sasabe , Kenji Kadonaga , Yoshio Irie , Shigeru Sakamoto , Koji Miyake
IPC分类号： C08F8/00 , C08F20/04 , B01F3/08
CPC分类号： B01F3/0803 , B01F3/0853 , B01F7/00158 , B01F7/022 , B01F7/04 , B01F15/00844 , B01F15/00863 , B01F2215/0422 , B01F2215/0427 , B01F2215/0472 , B01F2215/0477 , B01F2215/0481 , Y10S526/93
摘要： A method for mixing a water-absorbent resin and a surface cross-linking agent-containing solution to repress aggregates is equipped. The water-absorbent resin and the surface cross-linking agent-containing solution is mixed with a plow-shaped mixing device which is equipped with an inner wall formed of material manifesting an interfacial contact angle of not less than 60° to water and possessing a temperature of heat distortion of not lower than 70° C., a plow-shaped stirring vane and a disintegrating blade.
摘要翻译：配备吸水性树脂和含表面交联剂的溶液混合以抑制聚集体的方法。吸水性树脂和含表面交联剂的溶液与犁形混合装置混合，该犁形混合装置配备有由表面与水接触角不小于60°的材料形成的内壁，并具有热变形温度不低于70℃，犁状搅拌叶片和分解叶片。

9. 发明申请

US20050046069A1 Process for production of hydrogel particles and process for cutting of high-concentration hydrogel sheet 有权
标题翻译：生产水凝胶颗粒的方法和切割高浓度水凝胶片的方法
公开(公告)号：US20050046069A1
公开(公告)日：2005-03-03
申请号：US10927156
申请日：2004-08-27
申请人： Masazumi Sasabe , Kozo Nogi , Shigeru Sakamoto , Yasuhiro Fujita , Akihiro Morita , Hiroaki Hattori
发明人： Masazumi Sasabe , Kozo Nogi , Shigeru Sakamoto , Yasuhiro Fujita , Akihiro Morita , Hiroaki Hattori
IPC分类号： B26D1/00 , B26D1/22 , B26D1/24 , B26D1/38 , B26D1/62 , B26D7/08 , B26D9/00 , B29B9/04 , B29B13/10
CPC分类号： B26D7/088 , B26D1/0006 , B26D1/225 , B26D1/245 , B26D1/385 , B26D1/626 , B26D9/00 , B26D2001/002 , B29B9/04 , B29B13/10 , B29K2105/0061 , B29K2995/0092
摘要： An object of the present invention is to make it possible that: a high-concentration hydrogel sheet, which is suitable for production of high-performance water-absorbent resin particles, is cut efficiently without involving the adhesion to such as cutting-blades; and the subsequent disintegration operation is also successfully carried out; and hydrogel particles excellent in the quality and performances are efficiently produced. As a means of achieving this object, the process according to the present invention for production of hydrogel particles is a process for production of the hydrogel particles 14 from a high-concentration hydrogel sheet 10 and comprises: a step (a) of cutting a continuous sheet 10 of a crosslinked high-concentration hydrogel polymer of 50 to 80 weight % in solid component concentration every 10 to 100 cm lengthwise of the continuous sheet 10 while running it lengthwise, thereby obtaining cut pieces 12; and a step (b) of continuously supplying the cut pieces 12 (obtained from the step (a)) to a continuous disintegrator 40 to continuously carry out disintegration and discharge under conditions where the supply amount of the cut pieces 12 and the disintegrating and discharging abilities of the continuous disintegrator 40 satisfy (supply amount)≦(disintegrating and discharging abilities), thereby obtaining the hydrogel particles 14.
摘要翻译：本发明的目的是使得可以有效地切割适合于生产高性能吸水性树脂颗粒的高浓度水凝胶片而不涉及诸如切割刀片的粘附; 随后的解体行动也顺利进行; 能够有效地制造质量和性能优异的水凝胶颗粒。作为实现该目的的手段，根据本发明用于生产水凝胶颗粒的方法是从高浓度水凝胶片10制备水凝胶颗粒14的方法，包括：（a）将连续在长度方向上连续片材10的长度方向上每10至100cm的固体成分浓度为50-80重量％的交联的高浓度水凝胶聚合物片材10，从而获得切割片12; 以及将切断片12（从工序（a）获得）连续地供给到连续粉碎机40的步骤（b），以在切割片12的供给量和分解和排出的条件下连续进行分解和排出连续粉碎机40的能力满足（供给量）<=（崩解排出能力），从而得到水凝胶颗粒14。

10. 发明授权

US07638078B2 Process for production of hydrogel particles and process for cutting of high-concentration hydrogel sheet 有权
标题翻译：生产水凝胶颗粒的方法和切割高浓度水凝胶片的方法
公开(公告)号：US07638078B2
公开(公告)日：2009-12-29
申请号：US10927156
申请日：2004-08-27
申请人： Masazumi Sasabe , Kozo Nogi , Shigeru Sakamoto , Yasuhiro Fujita , Akihiro Morita , Hiroaki Hattori
发明人： Masazumi Sasabe , Kozo Nogi , Shigeru Sakamoto , Yasuhiro Fujita , Akihiro Morita , Hiroaki Hattori
IPC分类号： B26D1/22 , B26D1/40 , B26D1/62 , B29B11/02
CPC分类号： B26D7/088 , B26D1/0006 , B26D1/225 , B26D1/245 , B26D1/385 , B26D1/626 , B26D9/00 , B26D2001/002 , B29B9/04 , B29B13/10 , B29K2105/0061 , B29K2995/0092
摘要： An object of the present invention is to make it possible that: a high-concentration hydrogel sheet, which is suitable for production of high-performance water-absorbent resin particles, is cut efficiently without involving the adhesion to such as cutting-blades; and the subsequent disintegration operation is also successfully carried out; and hydrogel particles excellent in the quality and performances are efficiently produced. As a means of achieving this object, the process according to the present invention for production of hydrogel particles is a process for production of the hydrogel particles 14 from a high-concentration hydrogel sheet 10 and comprises: a step (a) of cutting a continuous sheet 10 of a crosslinked high-concentration hydrogel polymer of 50 to 80 weight % in solid component concentration every 10 to 100 cm lengthwise of the continuous sheet 10 while running it lengthwise, thereby obtaining cut pieces 12; and a step (b) of continuously supplying the cut pieces 12 (obtained from the step (a)) to a continuous disintegrator 40 to continuously carry out disintegration and discharge under conditions where the supply amount of the cut pieces 12 and the disintegrating and discharging abilities of the continuous disintegrator 40 satisfy (supply amount)≦(disintegrating and discharging abilities), thereby obtaining the hydrogel particles 14.
摘要翻译：本发明的目的是使得可以有效地切割适合于生产高性能吸水性树脂颗粒的高浓度水凝胶片而不涉及诸如切割刀片的粘附; 随后的解体行动也顺利进行; 能够有效地制造质量和性能优异的水凝胶颗粒。作为实现该目的的手段，根据本发明用于生产水凝胶颗粒的方法是从高浓度水凝胶片10制备水凝胶颗粒14的方法，包括：（a）将连续在长度方向上连续片材10的长度方向上每10至100cm的固体成分浓度为50-80重量％的交联的高浓度水凝胶聚合物片材10，从而获得切割片12; 以及将切断片12（从工序（a）获得）连续地供给到连续粉碎机40的步骤（b），以在切割片12的供给量和分解和排出的条件下连续进行分解和排出连续粉碎机40的能力满足（供给量）<=（崩解排出能力），从而得到水凝胶颗粒14。

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