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：US20070123658A1

公开(公告)日：2007-05-31

申请号：US10572565

申请日：2004-09-17

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

IPC分类号： C08F120/02

CPC分类号： C08J3/245 ,  A61L15/60 ,  B01J20/261 ,  B01J2220/68 ,  C08F20/06 ,  C08J2333/00

摘要： An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.

摘要翻译： 本发明的目的是提供一种具有优异凝胶性能的吸水剂，并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。 此外，本发明的另一个目的是提供一种安全且透液性优异的吸水剂，并且其中用于提高液体渗透性的液体渗透性改进剂的量减少。 吸水剂由具有高交联度，高液体保持性和高凝胶强度（凝胶层的溶胀压力为35kDyne / cm2）的特定聚合方法制成的吸水性树脂 或者更多）。 该吸水剂被进一步处理以具有特定的粒度分布（其颗粒的95重量％以上小于850微米但不小于106微米，对数标准偏差（fDfÄ）在0.25至0.45的范围内），然后 表面交联。 之后，加入液体渗透性改进剂。

公开(公告)号：US07919564B2

公开(公告)日：2011-04-05

申请号：US11540478

申请日：2006-09-28

申请人： Hirofumi Shibata ,  Kazushi Torii

发明人： Hirofumi Shibata ,  Kazushi Torii

IPC分类号： C08F8/14 ,  C08F8/30 ,  C08F20/06

CPC分类号： C08K5/14 ,  A61L15/24 ,  A61L15/60 ,  B01J20/26 ,  B01J20/261 ,  B01J20/264 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28016 ,  B01J20/28033 ,  B01J20/30 ,  B01J2220/68 ,  C08F6/006 ,  C08F220/06 ,  C08F222/1006 ,  C08J3/245 ,  C08J3/28 ,  C08J2300/14 ,  C08K5/053

摘要： The present invention provides a method for manufacturing a particulate water-absorbing agent which has excellent liquid diffusibility and liquid permeability, and whose amount of residual monomers is reduced. The method for manufacturing the particulate water-absorbing agent of the present invention includes a step of surface-crosslinking, in the presence of an organic crosslinking agent, water-absorbing resin particles obtained through at least a step of polymerizing an aqueous solution of unsaturated monomers, and in or after the polymerizing step, a reaction system is mixed with peroxide. Thus, it is possible to obtain the particulate water-absorbing agent which has excellent liquid diffusibility and liquid permeability and whose amount of residual monomers is small, that is, it is possible to obtain the particulate water-absorbing agent which is highly functional and highly safe.

摘要翻译： 本发明提供一种具有优异的液体扩散性和液体渗透性并且其残余单体的量减少的颗粒状吸水剂的制造方法。 本发明的颗粒状吸水剂的制造方法包括在有机交联剂的存在下进行表面交联的工序，所述吸水性树脂粒子至少通过聚合不饱和单体的水溶液 ，并且在聚合步骤中或之后，将反应体系与过氧化物混合。 因此，可以获得具有优异的液体扩散性和液体渗透性并且其残留单体的量小的颗粒状吸水剂，即可以获得高度功能和高度的颗粒状吸水剂 安全。

公开(公告)号：US07803880B2

公开(公告)日：2010-09-28

申请号：US10572565

申请日：2004-09-17

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

IPC分类号： C08F20/02

CPC分类号： C08J3/245 ,  A61L15/60 ,  B01J20/261 ,  B01J2220/68 ,  C08F20/06 ,  C08J2333/00

摘要： An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.

摘要翻译： 本发明的目的是提供一种具有优异凝胶性能的吸水剂，并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。 此外，本发明的另一个目的是提供一种安全且透液性优异的吸水剂，其中用于提高液体渗透性的液体渗透性改进剂的量减少。 吸水剂由具有高交联度，高液体保持性和高凝胶强度（凝胶层的溶胀压力为35kDyne / cm2）的特定聚合方法制成的吸水性树脂 或者更多）。 该吸水剂被进一步处理以具有特定的粒度分布（其颗粒的95重量％或更多小于850度，但不小于106度，对数标准偏差（ƒðƒÄ）在0.25至0.45的范围内），然后 表面交联。 之后，加入液体渗透性改进剂。

公开(公告)号：US20060247351A1

公开(公告)日：2006-11-02

申请号：US11373215

申请日：2006-03-13

申请人： Kazushi Torii ,  Kenji Kadonaga ,  Hirofumi Shibata ,  Taku Iwamura ,  Kazuki Kimura ,  Koji Miyake ,  Kozo Nogi

发明人： Kazushi Torii ,  Kenji Kadonaga ,  Hirofumi Shibata ,  Taku Iwamura ,  Kazuki Kimura ,  Koji Miyake ,  Kozo Nogi

IPC分类号： C09D5/08 ,  C08K3/22 ,  C04B26/06

CPC分类号： C08L101/14 ,  C08J3/245 ,  Y10T428/2998

摘要： A water-absorbing agent according to the present invention includes water-absorbent resin particles having an internal cross-linked structure,.wherein a vicinity of a surface of the water-absorbent resin particle is cross-linked with a surface cross-linking agent, and the water-absorbent resin particle has therein a sea-island structure having (i) part containing a first water-soluble multivalent metal salt such as aluminum sulfate and (ii) part not containing the first water-soluble multivalent metal salt. With this arrangement, it is possible to provide a water-absorbing agent having less water-soluble component content, more excellent liquid permeability, and more excellent water retention under pressure than the conventional water-absorbing agent.

摘要翻译： 根据本发明的吸水剂包括具有内部交联结构的吸水性树脂颗粒，其中吸水性树脂颗粒的表面附近与表面交联剂交联， 并且吸水性树脂颗粒具有海岛结构，其具有（i）部分含有第一水溶性多价金属盐如硫酸铝和（ii）不含第一水溶性多价金属盐的部分。 通过这种布置，可以提供比常规吸水剂更低的水溶性组分含量，更好的液体渗透性和更优异的保压性的吸水剂。

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：US20090208748A1

公开(公告)日：2009-08-20

申请号：US12294325

申请日：2007-03-20

申请人： Kazushi Torii ,  Hirofumi Shibata

发明人： Kazushi Torii ,  Hirofumi Shibata

IPC分类号： B32B5/16 ,  C08F20/06

CPC分类号： B01J20/26 ,  A61L15/60 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/68 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

摘要： According to the present invention, the manufacturing method for the water absorbing resin involves the step of polymerizing a water-soluble unsaturated monomer, 0.06 of 5 mol % of which is composed of an internal crosslinking agent; and the step of drying a water-containing gel which has a thermally decomposing radical initiator content index of 40 to 100 at 100 to 250° C. The water absorbing resin of the present invention contains a water-soluble unsaturated monomer as a repeat unit for a major chain, 90 mol % of the monomer being composed of an acrylic acid and/or salt thereof, the resin having an internal crosslinking structure and exhibiting a weight-average molecular weight Mw of 360,000 to 1,000,000 daltons and an intrinsic viscosity IV of 2.1 to 6.0 dL/g where the weight-average molecular weight Mw and the intrinsic viscosity IV are measured after treatment under set 2 of hydrolysis conditions.

摘要翻译： 根据本发明，吸水性树脂的制造方法包括聚合水溶性不饱和单体的步骤，其中5摩尔％的0.06是由内部交联剂组成的步骤; 以及在100〜250℃下热分解自由基引发剂含量指数为40〜100的含水凝胶的干燥工序。本发明的吸水性树脂含有作为重复单元的水溶性不饱和单体， 主链，90摩尔％的单体由丙烯酸和/或其盐组成，该树脂具有内部交联结构并且显示重均分子量Mw为360,000至1,000,000道尔顿，特性粘度IV为2.1 至6.0dL / g，其中在设定的水解条件2下处理后测量重均分子量Mw和特性粘度IV。

公开(公告)号：US08497226B2

公开(公告)日：2013-07-30

申请号：US12805685

申请日：2010-08-13

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Taku Iwamura ,  Yoshio Irie ,  Yorimichi Dairoku ,  Yoshiro Mitsukami ,  Sayaka Machida

IPC分类号： B01J20/26 ,  C08F20/06

CPC分类号： C08J3/245 ,  A61L15/60 ,  B01J20/261 ,  B01J2220/68 ,  C08F20/06 ,  C08J2333/00

摘要： An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.

摘要翻译： 本发明的目的是提供一种具有优异凝胶性能的吸水剂，并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。 此外，本发明的另一个目的是提供一种安全且透液性优异的吸水剂，其中用于提高液体渗透性的液体渗透性改进剂的量减少。 吸水剂由具有高交联度，高液体保持性和高凝胶强度（凝胶层的溶胀压力为35kDyne / cm2）的特定聚合方法制成的吸水性树脂 或者更多）。 该吸水剂被进一步处理以具有特定的粒度分布（其颗粒的95重量％以上小于850微米但不小于106微米，对数标准偏差（fDfÄ）在0.25至0.45的范围内），然后 表面交联。 之后，加入液体渗透性改进剂。

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。