公开(公告)号：US20120184670A1

公开(公告)日：2012-07-19

申请号：US13498780

申请日：2010-09-29

申请人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

发明人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

IPC分类号： C08L33/02

CPC分类号： A61L15/60 ,  A61L15/22 ,  B01J20/223 ,  B01J20/267 ,  B01J20/30 ,  B01J2220/44 ,  C08F220/06 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08K5/098 ,  C08L33/02

摘要： A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77≦AAP (4.83 kPa)+1.8×CRC≦100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.

摘要翻译： 本发明的颗粒状吸水剂是含有吸水性树脂作为主要成分的吸水剂，含有多价金属阳离子的颗粒状吸水剂，满足：（1）多价金属阳离子的含量为 0.001重量％和5重量％; （2）无压吸收率（CRC）不小于28（g / g），抗压吸收性（AAP 4.83kPa）不小于10（g / g）; （3）抗压吸收性和无压吸收性满足77＆nlE; AAP（4.83kPa）+ 1.8×CRC＆nlE; 100; 和（4）吸水剂的水分含量在5重量％至20重量％之间。 这提供了一种在吸湿后具有抗粘连性的吸水剂，对休克的稳定性优异，并且当在尿布中使用时抑制Re-Wet。

公开(公告)号：US08952116B2

公开(公告)日：2015-02-10

申请号：US13498780

申请日：2010-09-29

申请人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

发明人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

IPC分类号： C08F220/06 ,  C08K5/098 ,  C08L33/02 ,  B01J20/22 ,  B01J20/26 ,  B01J20/30 ,  A61L15/60 ,  C08J3/24

CPC分类号： A61L15/60 ,  A61L15/22 ,  B01J20/223 ,  B01J20/267 ,  B01J20/30 ,  B01J2220/44 ,  C08F220/06 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08K5/098 ,  C08L33/02

摘要： A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77≦AAP (4.83 kPa)+1.8×CRC≦100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.

摘要翻译： 本发明的颗粒状吸水剂是含有吸水性树脂作为主要成分的吸水剂，含有多价金属阳离子的颗粒状吸水剂，满足：（1）多价金属阳离子的含量为 0.001重量％和5重量％; （2）无压吸收率（CRC）不小于28（g / g），抗压吸收性（AAP 4.83kPa）不小于10（g / g）; （3）抗压吸收性和无压吸收性满足77＆nlE; AAP（4.83kPa）+ 1.8×CRC＆nlE; 100; 和（4）吸水剂的水分含量在5重量％至20重量％之间。 这提供了一种在吸湿后具有抗粘连性的吸水剂，对休克的稳定性优异，并且当在尿布中使用时抑制Re-Wet。

公开(公告)号：US20120305842A1

公开(公告)日：2012-12-06

申请号：US13467236

申请日：2012-05-09

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： C08L35/02

CPC分类号： A61L15/60 ,  A61L15/18 ,  B01J20/103 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/46 ,  B01J2220/68 ,  C08K3/36 ,  C08L101/14 ,  Y10T428/253

摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.

摘要翻译： 本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。 该试剂满足条件（a）至（d）：（a）该试剂含有10ppm至1,900ppm含量的水不溶性无机颗粒; （b）该试剂含有5质量％以下的粒径，使其能够通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

公开(公告)号：US20090036855A1

公开(公告)日：2009-02-05

申请号：US11658879

申请日：2005-08-05

申请人： Katsuyuki Wada ,  Hiroko Ueda ,  Teruyuki Kanto ,  Kunihiko Ishizaki ,  Motohiro Imura

发明人： Katsuyuki Wada ,  Hiroko Ueda ,  Teruyuki Kanto ,  Kunihiko Ishizaki ,  Motohiro Imura

IPC分类号： A61F13/53 ,  B01J20/28

CPC分类号： B01J20/261 ,  A61F13/531 ,  A61F2013/530569 ,  A61F2013/5307 ,  A61F2013/530751 ,  A61L15/60 ,  B01J20/26 ,  B01J20/2803 ,  B01J2220/68 ,  C08F6/18 ,  C08F220/06

摘要： Reversed phase suspension polymerization is allowed while controlling content of minor components in monomer, particularly controlling a content of acetic acid and propionic acid being not higher than 500 ppm, controlling a content of acrylic acid dimer being not higher than 1000 ppm, in acrylic acid. Cross-linked polymer obtained by the polymerization is subjected to a surface crosslinking treatment without substantially using an organic solvent, and under heating at high temperature (150° C. or higher and 250° C. or lower). Thereafter, agglomeration is carried out without substantially using an organic solvent. Accordingly, a particulate water-absorbing agent including a water-absorbing resin having superior property, and being suited for practical applications at high concentrations in absorbing cores such as a diaper and the like without generation of any odor of the organic solvent can be obtained because no volatile organic compound is included.

摘要翻译： 在丙烯酸​​中控制丙烯酸二聚体的含量控制丙烯酸二聚体的含量不高于500ppm，特别是控制乙酸和丙酸的含量不高于500ppm，同时控制单体中少量成分的含量，进行反相悬浮聚合。 通过聚合得到的交联聚合物基本上不使用有机溶剂进行表面交联处理，并在高温（150℃以上且250℃以下）下加热。 此后，基本上不使用有机溶剂进行附聚。 因此，可以获得包含具有优异性能的吸水性树脂的颗粒状吸水剂，并且可以获得不产生有机溶剂的任何气味的高吸收性芯材如尿布等的实际应用的颗粒状吸水剂，因为 不含挥发性有机化合物。

公开(公告)号：US09180220B2

公开(公告)日：2015-11-10

申请号：US13467236

申请日：2012-05-09

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： C08G63/91 ,  C08F20/00 ,  B01J20/10 ,  B01J20/22 ,  B01J20/28 ,  B01J20/32 ,  A61L15/60 ,  A61L15/18 ,  B01J20/26 ,  C08L101/14

CPC分类号： A61L15/60 ,  A61L15/18 ,  B01J20/103 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/46 ,  B01J2220/68 ,  C08K3/36 ,  C08L101/14 ,  Y10T428/253

摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.

摘要翻译： 本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。 该试剂满足条件（a）至（d）：（a）该试剂含有量为10ppm至1,900ppm的水不溶性无机颗粒; （b）该试剂含有5质量％以下的粒径，使其能够通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

公开(公告)号：US20090298685A1

公开(公告)日：2009-12-03

申请号：US12294328

申请日：2007-03-20

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： B01J20/26

CPC分类号： A61L15/60 ,  A61L15/18 ,  B01J20/103 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/46 ,  B01J2220/68 ,  C08K3/36 ,  C08L101/14 ,  Y10T428/253

摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.

摘要翻译： 本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。 该试剂满足条件（a）至（d）：（a）该试剂含有10ppm至1,900ppm含量的水不溶性无机颗粒; （b）该试剂含有5质量％以下的颗粒，其尺寸可以通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

公开(公告)号：US08198209B2

公开(公告)日：2012-06-12

申请号：US12294328

申请日：2007-03-20

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： B01J20/26 ,  B01J20/10 ,  B32B5/24

CPC分类号： A61L15/60 ,  A61L15/18 ,  B01J20/103 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/46 ,  B01J2220/68 ,  C08K3/36 ,  C08L101/14 ,  Y10T428/253

摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.

摘要翻译： 本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。 该试剂满足条件（a）至（d）：（a）该试剂含有10ppm至1,900ppm含量的水不溶性无机颗粒; （b）该试剂含有5质量％以下的粒径，使其能够通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

公开(公告)号：US08501873B2

公开(公告)日：2013-08-06

申请号：US11660758

申请日：2005-08-31

申请人： Masazumi Sasabe ,  Kenji Kadonaga ,  Shigeru Sakamoto ,  Motohiro Imura ,  Tsunemasa Ueno ,  Hiroko Ueda ,  Yoshifumi Adachi

发明人： Masazumi Sasabe ,  Kenji Kadonaga ,  Shigeru Sakamoto ,  Motohiro Imura ,  Tsunemasa Ueno ,  Hiroko Ueda ,  Yoshifumi Adachi

IPC分类号： C08F8/42 ,  C08F8/12 ,  C08F6/02

CPC分类号： C08J3/248 ,  C08J3/243 ,  C08J2300/14 ,  Y10T428/254 ,  Y10T428/2982

摘要： A homogeneously surface cross-linked water absorbent resin and a method for the production thereof are provided.The water absorbent material is formed of a surface cross-linked water absorbent resin resulting from granular irregularly pulverized shaped surface cross-linking the product of partial neutralization or whole neutralization of a water absorbent resin having acrylic acid or a metal salt thereof as a main component, which water absorbent material shows a metal atom concentration on the surface of the water absorbent material in the range of 0-10% within 0 second of polishing and 2-35% at 10 seconds value of polishing as determined by subjecting the water absorbent material to Ar ion discharge polishing under a voltage of 500 Å. The surface cross-linked water absorbent resin to be used herein can be produced by surface cross-linking a water absorbent resin having a specific particle diameter with a surface cross-linking agent having a water concentration in a specific range.

摘要翻译： 提供均匀的表面交联型吸水性树脂及其制造方法。 吸水材料由表面交联的吸水性树脂形成，该表面交联的吸水性树脂是由具有丙烯酸或其金属盐作为主要成分的吸水性树脂的部分中和或全部中和产生的颗粒不规则粉碎的表面交联而成的 该吸水材料在抛光的0秒内在吸水材料的表面上表现出0-10％的范围内的金属原子浓度，在10秒的抛光时间为2-35％，通过使吸水材料 在500的电压下进行Ar离子放电研磨。 这里使用的表面交联型吸水性树脂可以通过将具有特定粒径的吸水性树脂与具有特定范围的水分浓度的表面交联剂进行表面交联来制造。

公开(公告)号：US20070264489A1

公开(公告)日：2007-11-15

申请号：US11660758

申请日：2005-08-31

申请人： Masazumi Sasabe ,  Kenji Kadonaga ,  Shigeru Sakamoto ,  Motohiro Imura ,  Tsunemasa Ueno ,  Hiroko Ueda ,  Yoshifumi Adachi

发明人： Masazumi Sasabe ,  Kenji Kadonaga ,  Shigeru Sakamoto ,  Motohiro Imura ,  Tsunemasa Ueno ,  Hiroko Ueda ,  Yoshifumi Adachi

IPC分类号： C08J3/24 ,  C08L101/14

CPC分类号： C08J3/248 ,  C08J3/243 ,  C08J2300/14 ,  Y10T428/254 ,  Y10T428/2982

摘要： A homogeneously surface cross-linked water absorbent resin and a method for the production thereof are provided. The water absorbent material is formed of a surface cross-linked water absorbent resin resulting from granular irregularly pulverized shaped surface cross-linking the product of partial neutralization or whole neutralization of a water absorbent resin having acrylic acid or a metal salt thereof as a main component, which water absorbent material shows a metal atom concentration on the surface of the water absorbent material in the range of 0-10% within 0 second of polishing and 2-35% at 10 seconds value of polishing as determined by subjecting the water absorbent material to Ar ion discharge polishing under a voltage of 500 Å. The surface cross-linked water absorbent resin to be used herein can be produced by surface cross-linking a water absorbent resin having a specific particle diameter with a surface cross-linking agent having a water concentration in a specific range.

摘要翻译： 提供均匀的表面交联型吸水性树脂及其制造方法。 吸水材料由表面交联的吸水性树脂形成，该表面交联的吸水性树脂是由具有丙烯酸或其金属盐作为主要成分的吸水性树脂的部分中和或全部中和产生的颗粒不规则粉碎的表面交联而成的 该吸水材料在抛光的0秒内在吸水材料的表面上表现出0-10％的范围内的金属原子浓度，在10秒的抛光时间为2-35％，通过使吸水材料 在500的电压下进行Ar离子放电研磨。 这里使用的表面交联型吸水性树脂可以通过将具有特定粒径的吸水性树脂与具有特定范围的水分浓度的表面交联剂进行表面交联来制造。

公开(公告)号：US09796853B2

公开(公告)日：2017-10-24

申请号：US10565324

申请日：2004-07-23

申请人： Hiroko Ueda ,  Katsuyuki Wada ,  Yasuhisa Nakashima

发明人： Hiroko Ueda ,  Katsuyuki Wada ,  Yasuhisa Nakashima

IPC分类号： C08L101/14 ,  A61L15/18 ,  A61L15/60

CPC分类号： C08L101/14 ,  A61L15/18 ,  A61L15/60

摘要： A water-absorbent resin composition suffering exfoliation of additives from a water-absorbent resin only insignificantly and excelling in fluidity of powder after absorption of moisture and in deodorizing property and absorbent property as well is provided. The water-absorbent resin composition of this invention comprises a water-absorbent resin obtainable by polymerizing an unsaturated monomer having an acid group and/or a salt thereof; and complex oxide hydrate containing zinc and silicon, or zinc and aluminum, wherein the complex oxide hydrate contains zinc as main metal component, the mass ratio of the content of zinc and the content of silicon or aluminum is in the range of 50/50-99/1, and the absorption capacity at 60 minutes toward 0.90 mass % sodium chloride aqueous solution under the pressure of 1.9 kPa is not less than 20 g/g. Optionally, a plant component (C) can be added to the water absorbent resin composition.