公开(公告)号：US08247491B2

公开(公告)日：2012-08-21

申请号：US10544348

申请日：2004-02-06

申请人： Kazushi Torii ,  Yoshiro Mitsukami ,  Motohiro Imura ,  Taku Iwamura ,  Toshimasa Kitayama ,  Kenji Kadonaga ,  Hiroki Inoue ,  Koji Miyake ,  Kozo Nogi ,  Masatoshi Nakamura ,  Shigeru Sakamoto ,  Sayaka Machida

发明人： Kazushi Torii ,  Yoshiro Mitsukami ,  Motohiro Imura ,  Taku Iwamura ,  Toshimasa Kitayama ,  Kenji Kadonaga ,  Hiroki Inoue ,  Koji Miyake ,  Kozo Nogi ,  Masatoshi Nakamura ,  Shigeru Sakamoto ,  Sayaka Machida

IPC分类号： C08L33/02 ,  C08L31/00 ,  C08L29/04 ,  C08F20/06 ,  C08K3/22

CPC分类号： A61L15/60

摘要： There are disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition causes little gel-blocking and is excellent in the liquid permeability and liquid diffusibility and is high also in the absorption performances and further is strong also against the physical damage; and there are further disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition has the following further advantages, in addition to the above, of involving little segregation of the metal compound and further having a dust prevention effect. One of water-absorbent resin compositions according to the present invention is a water-absorbent resin composition comprising water-absorbent resin particles obtained by polymerizing a monomer including acrylic acid and/or its salt, with the composition having a mass-average particle diameter of 100 to 600 μm and comprising water-soluble polyvalent metal salt particles and the water-absorbent resin particles that have been surface-crosslinked.

摘要翻译： 公开了吸水性树脂组合物及其制造方法，其中吸水性树脂组合物几乎没有凝胶阻塞，并且液体渗透性和液体扩散性优异，并且吸收性能也高，并且还强 物理伤害; 并且还公开了一种吸水性树脂组合物及其制造方法，其中除了上述之外，吸水性树脂组合物具有以下进一步的优点，即涉及金属化合物几乎不偏析并且还具有防尘效果 。 根据本发明的吸水性树脂组合物之一是吸收性树脂组合物，其包含通过使包含丙烯酸和/或其盐的单体聚合而获得的吸水性树脂颗粒，其组成物的质量平均粒径为 100〜600μm，并且包含水溶性多价金属盐颗粒和表面交联的吸水性树脂颗粒。

公开(公告)号：US09567414B2

公开(公告)日：2017-02-14

申请号：US13982166

申请日：2012-01-30

申请人： Kozo Nogi ,  Masatoshi Nakamura ,  Hirofumi Shibata ,  Koji Honda ,  Yusuke Watanabe ,  Satoshi Matsumoto ,  Reiko Nakatsuru ,  Kunihiko Ishizaki ,  Kazuki Kimura ,  Sayaka Machida

发明人： Kozo Nogi ,  Masatoshi Nakamura ,  Hirofumi Shibata ,  Koji Honda ,  Yusuke Watanabe ,  Satoshi Matsumoto ,  Reiko Nakatsuru ,  Kunihiko Ishizaki ,  Kazuki Kimura ,  Sayaka Machida

IPC分类号： C08F20/06 ,  C08F220/06 ,  C08J3/12 ,  C09D133/04 ,  C08J3/24

CPC分类号： C08F20/06 ,  C08F220/06 ,  C08J3/12 ,  C08J3/24 ,  C08J3/245 ,  C08J2333/02 ,  C09D133/04 ,  C08F2222/1013

摘要： From a view point of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent solution into a water absorbent resin powder containing at least one or more kinds of ion reactive surface crosslinking agents is performed two or more times.

摘要翻译： 从表面交联后的特定产品的减少的观点来看，特别是使用碳酸亚烷基酯化合物作为表面交联剂时，由于空气温度的影响大，所以需要还原所生成的乙二醇 作为副产物，并且提供了一种制备基于聚丙烯酸（盐）的吸水性树脂粉末的方法，包括使基于丙烯酸（盐）的单体水溶液聚合的步骤，干燥所得聚合物的步骤， 任选的研磨分级步骤和表面交联步骤，其中在表面交联步骤中，（1）将含有碳酸亚烃酯化合物和多元醇化合物的表面交联剂混合到吸水性树脂粉末中，将混合物加热 和/或（2）混合表面的混合处理，和/或（2）混合表面的混合处理 交联剂溶液进入含有至少一种或多种离子反应性表面交联剂的吸水性树脂粉末中进行两次或更多次。

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：US20100308263A1

公开(公告)日：2010-12-09

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 ,  C08F120/06

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％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：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：US20070106013A1

公开(公告)日：2007-05-10

申请号：US10562140

申请日：2004-06-23

申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

IPC分类号： C09D5/02

CPC分类号： A61L15/60 ,  A61F2013/530686 ,  A61F2013/530744

摘要： The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 μm and not less, than 106 μm are contained, and a weight average particle diameter of the particles is less than 500 μm and not less than 300 μm and a logarithmic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superior absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

摘要翻译： 含有颗粒状吸水性树脂的吸水性树脂组合物的制造方法，其中含有95重量％以上的粒径小于850μm，不小于106μm的颗粒，重量平均粒径为 粒子小于500μm且不小于300μm，粒度分布的对数标准偏差（sigmaxi）为0.45以下，吸水性组合物的水溶性成分为35重量％以下， 含有多价金属成分，多价金属成分的提取率为5.0重量％以上且小于100重量％，因此提供了在高湿度下没有任何凝结的高吸湿性树脂组合物，其具有优异的 就吸收性而言，在压力下的扩散吸收性。

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：US20140031473A1

公开(公告)日：2014-01-30

申请号：US13982166

申请日：2012-01-30

申请人： Kozo Nogi ,  Masatoshi Nakamura ,  Hirofumi Shibata ,  Koji Honda ,  Yusuke Watanabe ,  Satoshi Matsumoto ,  Reiko Nakatsuru ,  Kunihiko Ishizaki ,  Kazuki Kimura ,  Sayaka Machida

发明人： Kozo Nogi ,  Masatoshi Nakamura ,  Hirofumi Shibata ,  Koji Honda ,  Yusuke Watanabe ,  Satoshi Matsumoto ,  Reiko Nakatsuru ,  Kunihiko Ishizaki ,  Kazuki Kimura ,  Sayaka Machida

IPC分类号： C08F20/06

CPC分类号： C08F20/06 ,  C08F220/06 ,  C08J3/12 ,  C08J3/24 ,  C08J3/245 ,  C08J2333/02 ,  C09D133/04 ,  C08F2222/1013

摘要： From a viewpoint of reduction in an out of spec product after surface crosslinking, particularly, when an alkylene carbonate compound is used as a surface crosslinking agent, influence by an air temperature is great, and it is necessary to reduce ethylene glycol which is produced as a byproduct, and there is provided a process for producing a polyacrylic acid (salt)-based water absorbent resin powder, comprising a step of polymerizing an aqueous acrylic acid (salt)-based monomer solution, a step of drying the resulting polymer, an optional grinding•classifying step, and a surface crosslinking step, wherein in the surface crosslinking step, (1) a surface crosslinking agent containing an alkylene carbonate compound and a polyhydric alcohol compound is mixed into a water absorbent resin powder, the mixture is heat-reacted and, further, simultaneously with, or separately from the mixing, an ion reactive surface crosslinking agent is mixed, and/or (2) mixing treatment of mixing a surface crosslinking agent solution into a water absorbent resin powder containing at least one or more kinds of ion reactive surface crosslinking agents is performed two or more times.

摘要翻译： 从表面交联后的特定产品的减少的观点出发，特别是使用碳酸亚烷基酯化合物作为表面交联剂时，空气温度的影响大，需要将生成的乙二醇 副产物，并且提供了一种生产聚丙烯酸（盐）基吸水性树脂粉末的方法，包括使基于丙烯酸（盐）的单体水溶液聚合的步骤，干燥所得聚合物的步骤， 任选的研磨分级步骤和表面交联步骤，其中在表面交联步骤中，（1）将含有碳酸亚烃酯化合物和多元醇化合物的表面交联剂混合到吸水性树脂粉末中， 与混合反应，进一步，同时或分开地混合，离子反应性表面交联剂混合，和/或（2）混合处理混合表面cr 将含有至少一种以上离子反应性表面交联剂的吸水性树脂粉末中的脱硫剂溶液进行两次以上。

公开(公告)号：US07960469B2

公开(公告)日：2011-06-14

申请号：US10562140

申请日：2004-06-23

申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Shinichi Fujino ,  Katsuyuki Wada ,  Kazushi Torii ,  Taku Iwamura ,  Sayaka Machida

IPC分类号： C08L33/00 ,  C08F220/04 ,  C08K3/10 ,  C08K3/08 ,  C08L29/04

CPC分类号： A61L15/60 ,  A61F2013/530686 ,  A61F2013/530744

摘要： The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 μm and not less, than 106 μm are contained, and a weight average particle diameter of the particles is less than 500 μm and not less than 300 μm and a logarithmic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superior absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

摘要翻译： 含有颗粒状吸水性树脂的吸水性树脂组合物的制造方法，其中，含有95重量％以上的粒径小于850μm且不小于106μm的颗粒，重均粒径为 颗粒小于500μm且不小于300μm，并且颗粒尺寸分布的对数标准偏差（＆amp; mgr）为0.45或更小，并且吸水组合物的水溶性组分为35重量％或 并且含有多价金属成分，多价金属成分的提取率为5.0重量％以上且小于100重量％，从而提供在高湿度下没有任何凝结的吸水性树脂组合物， 其在压力下的吸收性和扩散吸收性方面具有优异的吸收性。