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51. 发明公开

EP2565212A1 POLYACRYLATE (SALT), POLYACRYLATE (SALT) WATER-ABSORBENT RESIN, AND MANUFACTURING METHOD FOR SAME 有权
标题翻译： POLYACRYLATSÄURE（SALT）的基础上POLYACRYLATSÄURE（SALT），吸水性树脂及其制造方法
公开(公告)号：EP2565212A1
公开(公告)日：2013-03-06
申请号：EP11775019.0
申请日：2011-04-26
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , MIURA, Yuki , ISHIZAKI, Kunihiko , SAKAMOTO, Shigeru
IPC分类号： C08F20/06 , G01N27/62
摘要： Disclosed are a polyacrylate (salt) and a polyacrylate (salt) water-absorbent resin containing a tracer which can be verified back to the manufacturing process of the water-absorbent resin when dealing with various problems with the water-absorbent resin which can occur from the manufacturing process of the water-resistant resin, during the use thereof by a consumer, up until the disposal thereof. The disclosed polyacrylate (salt) and the polyacrylate (salt) water-absorbent resin have a carbon stable isotope ratio (δ 13 C) of at least -20‰ when measured by accelerator mass spectrometry.

52. 发明授权

EP2219781B1 WATER-ABSORBING AGENT AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：高吸水性及其制造方法
公开(公告)号：EP2219781B1
公开(公告)日：2012-12-26
申请号：EP08859270.4
申请日：2008-11-26
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Shigeru , IKEUCHI, Hiroyuki , MACHIDA, Sayaka
IPC分类号： B01J20/26 , C08J3/12 , C08J3/24 , C08L33/02 , C08L57/10 , C08L71/02 , A61F13/49 , A61F13/53
CPC分类号： A61L15/60 , C08G65/3322 , C08J3/12 , C08J2300/14 , C08L33/02 , C08L71/02 , C08L101/14 , C08L2205/05 , C08L2666/04

53. 发明公开

EP2219781A1 WATER-ABSORBING AGENT AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：高吸水性及其制造方法
公开(公告)号：EP2219781A1
公开(公告)日：2010-08-25
申请号：EP08859270.4
申请日：2008-11-26
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Shigeru , IKEUCHI, Hiroyuki , MACHIDA, Sayaka
IPC分类号： B01J20/26 , C08J3/12 , C08J3/24 , C08L33/02 , C08L57/10 , C08L71/02 , A61F13/49 , A61F13/53
CPC分类号： A61L15/60 , C08G65/3322 , C08J3/12 , C08J2300/14 , C08L33/02 , C08L71/02 , C08L101/14 , C08L2205/05 , C08L2666/04
摘要： The present invention provides a water-absorbing agent that includes water-absorbent resin particles as essential components and is suitable for a sanitary material. A water-absorbing agent of the present invention includes water-absorbent resin particles obtained by polymerizing an unsaturated monomer having an acid group. The water-absorbing agent has centrifuge retention capacity (CRC) of 5 to 20g/g and includes: a compound with a structure unit derived from polyalkyleneglycol other than the unsaturated monomer; and a multivalent metal salt, and accordingly the water-absorbing agent has high saline flow conductivity (SFC) in a range of the above centrifuge retention capacity (CRC).

54. 发明公开

EP2116571A1 GRANULAR WATER ABSORBER AND METHOD OF PRODUCING THE SAME 有权
标题翻译： GRANULARER WASSERABSORBER UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2116571A1
公开(公告)日：2009-11-11
申请号：EP08710756.1
申请日：2008-02-04
申请人： Nippon Shokubai Co., Ltd.
发明人： NAGASAWA, Makoto , SAKAMOTO, Kazuhiko , SAKAMOTO, Shigeru , TORII, Kazushi , TAHARA, Ryoko , IKEUCHI, Hiroyuki , FUJIMARU, Hirotama
IPC分类号： C08L33/02 , A61F13/15 , A61F13/49 , A61F13/53 , C08F2/44 , C08K5/37
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 ; CPI = GEX / residual monomer content × 100
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，更低的水溶性成分和残留的单体含量）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/或其盐的粒状吸水剂，粒状吸水剂具有 Hunter b值的表面颜色在-5〜10的范围内，并且交联吸收特性指数（CPI）在1〜100的范围内，由以下两个等式定义的CPI：GEX = GVs + 17 / Ln水溶性成分; CPI = GEX /残留单体含量×100其中GV是盐水中的凝胶体积，Ln（水溶性含量）是水溶性成分的对数自然。

55. 发明公开

EP2066737A1 METHOD FOR PRODUCING WATER ABSORBENT RESIN PARTICLE 有权
标题翻译：用于生产吸水性树脂颗粒
公开(公告)号：EP2066737A1
公开(公告)日：2009-06-10
申请号：EP07829254.7
申请日：2007-09-28
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Shigeru , IRIE, Yoshio , IKEUCHI, Hiroyuki , NAGASAWA, Makoto , ISHIZAKI, Kunihiko , MACHIDA, Sayaka
IPC分类号： C08J3/12
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.

56. 发明公开

EP1934267A1 AQUEOUS-LIQUID-ABSORBING AGENT AND ITS PRODUCTION PROCESS 有权
标题翻译：吸收剂含水液体及其制造方法
公开(公告)号：EP1934267A1
公开(公告)日：2008-06-25
申请号：EP06810981.8
申请日：2006-09-25
申请人： Nippon Shokubai Co., Ltd.
发明人： IKEUCHI, Hiroyuki , SAKAMOTO, Shigeru , MACHIDA, Sayaka
IPC分类号： C08F20/04 , A61F13/49 , A61F13/53
CPC分类号： C08F220/06 , C08F222/1006
摘要： The present invention provides an aqueous-liquid-absorbing agent which comprises water-absorbent resin particles as essential components and is suitable for uses in sanitary materials. The aqueous-liquid-absorbing agent according to the present invention is an aqueous-liquid-absorbing agent comprising water-absorbent resin particles as essential components, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer having a carboxyl group, and have a crosslinked structure in their inside, the aqueous-liquid-absorbing agent exhibiting a water absorption capacity (CRC) of 5 to 25 g/g and a saline flow conductivity (SFC) of not less than 1216cm3·s·10-7/g.

57. 发明公开

EP1729881A1 AN AQUEOUS-LIQUID-ABSORBING AGENT AND ITS PRODUCTION PROCESS 审中-公开
标题翻译：水性液体吸收剂及其制造方法
公开(公告)号：EP1729881A1
公开(公告)日：2006-12-13
申请号：EP05721045.2
申请日：2005-03-11
申请人： Nippon Shokubai Co.,Ltd.
发明人： IKEUCHI, Hiroyuki , TORII, Kazushi; , SAKAMOTO, Shigeru , IWAMURA, Taku; , MACHIDA, Sayaka;
IPC分类号： B01J20/26 , A61F13/15 , A61F13/49 , A61F13/53 , B01J20/30
CPC分类号： C08J3/245
摘要： An aqueous-liquid-absorbing agent according to this invention is the one comprising water-absorbent resin particles as essential components, wherein the particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer and have a crosslinked structure in their inside; with the agent exhibiting FSR of not less than 0.2 g/g/s, CRC of 5 to 25 g/g, SFC of not less than 400 x 10-7cm3⋅s/g, and a wet porosity of not less than 20 %. A process according to this invention for obtaining such an agent is characterized by comprising the steps of: obtaining a hydrogel from an aqueous monomer solution including a water-soluble ethylenically unsaturated monomer and an internal-crosslinking agent of not less than 0.2 mol % in ratio to the monomer; and then extruding this hydrogel from a perforated structure having perforation diameters in the range of 0.3 to 6.4 mm to thereby pulverize the hydrogel.

58. 发明公开

EP1392371A2 WATER-ABSORBING AGENT, ITS PRODUCTION AND SANITARY MATERIAL 有权
标题翻译：一个水剂，生产和卫生材料
公开(公告)号：EP1392371A2
公开(公告)日：2004-03-03
申请号：EP02733378.0
申请日：2002-06-07
申请人： Nippon Shokubai Co., Ltd.
发明人： NAKASHIMA, Yasuhisa , IKEUCHI, Hiroyuki , FUJITA, Yasuhiro , NAGASAWA, Makoto , SAKAMOTO, Shigeru , DAIROKU, Yorimichi , WADA, Katsuyuki , FUJINO, Shinichi , KITAYAMA, Toshimasa , HITOMI, Kazuhisa
IPC分类号： A61L15/60 , A61F13/15
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 is not more than 10 weight %.

59. 发明公开

EP1024176A1 CROSS-LINKED POLYMER COMPOSITION SWELLING IN WATER AND PROCESS FOR PRODUCING THE SAME 审中-公开
标题翻译： VERFAHREN ZU DEREN HERSTELLUNG的WASSERQUELLBARE VERNETZTE POLYMERZUSAMMENSETZUNG
公开(公告)号：EP1024176A1
公开(公告)日：2000-08-02
申请号：EP99935125.7
申请日：1999-08-10
申请人： Nippon Shokubai Co., Ltd.
发明人： HARADA, Nobuyuki , SAKAMOTO, Shigeru , ADACHI, Yoshifumi , KITAYAMA, Toshimasa
IPC分类号： C08L101/00 , B01J20/26
CPC分类号： B01J20/26 , A61L15/60 , C08L101/14 , Y10T428/2982 , Y10T428/31855 , C08L79/00 , C08L33/02 , C08L2666/02
摘要： The present invention has an object to provide a novel water-swellable crosslinked polymer composition which exhibits excellent saltwater absorption speed and capacity under a load. This object can be achieved in the case where, in a water-swellable crosslinked polymer composition comprising a blend of water-swellable crosslinked polymer particles of basicity in water and water-swellable crosslinked polymer particles of acidity in water, the water-swellable crosslinked polymer particles of basicity in water are unified with the water-swellable crosslinked polymer particles of acidity in water through ionic bondings in a state where water is present between the particles, wherein the ionic bondings are formed in a state where water is present between the particles by neutralization of at least part of acid groups of the water-swellable crosslinked polymer particles of acidity in water with the water-swellable crosslinked polymer particles of basicity in water.
摘要翻译：本发明的目的是提供一种在负荷下表现出优异的盐水吸收速度和容量的新的水溶胀性交联聚合物组合物。该水溶胀性交联聚合物组合物包含在水中呈碱性的水溶胀性交联聚合物粒子和水中的酸溶性水溶胀性交联聚合物粒子的共混物的水溶胀性交联聚合物组合物的情况下，可以实现该目的，在水中存在水的状态下，通过离子键合在水中的水溶性交联聚合物颗粒与水中的碱性呈一致，其中在颗粒之间存在水的状态下形成离子键，使水中具有碱性的水溶胀性交联聚合物颗粒在水中中和至少部分酸性的水溶胀性交联聚合物颗粒的酸基团。

60. 发明公开

EP0876888A1 METHOD OF PRODUCTION OF WATER-ABSORBING RESIN 失效
标题翻译：维尔法赫尔·赫斯特伦·哈瑟（Harze）
公开(公告)号：EP0876888A1
公开(公告)日：1998-11-11
申请号：EP97944156.5
申请日：1997-10-16
申请人： Nippon Shokubai Co., Ltd.
发明人： MIYAKE, Koji , MOTONO, Yoshihiro , HARADA, Nobuyuki , YANO, Akito , KANTO, Teruyuki , SAKAMOTO, Shigeru
IPC分类号： B29B13/10 , B01J20/26
CPC分类号： B01J20/26
摘要： A water-absorbent resin is produced by crushing a mass of crosslinked hydrogel polymer having high adhesion and elastic properties without kneading it, and drying the crushed crosslinked hydrogel polymer. In the case when the crosslinked hydrogel polymer includes cells therein, the crosslinked hydrogel polymer is crushed so as to restrain reduction in the number of cells contained in the crosslinked hydrogel polymer. The crosslinked hydrogel polymer is crushed by any of crushing methods including: shearing the crosslinked hydrogel polymer with a fixed blade and a rotary blade; cutting the crosslinked hydrogel polymer with a cutter having a pair of rotary blades that are mounted on different shafts and rotate while at least partly overlapping each other; cutting the crosslinked hydrogel polymer with a cutter having a rotary blade using a lubricant; and crushing the crosslinked hydrogel polymer after freezing. With the use of the above methods, it is possible to industrially and easily mass-produce porous water-absorbent resins with excellent absorption properties while restraining reduction in the number of cells contained in the crosslinked hydrogel polymer.
摘要翻译：通过在不捏合的情况下粉碎具有高粘附性和弹性的交联水凝胶聚合物的质量并干燥破碎的交联水凝胶聚合物来生产吸水性树脂。当交联的水凝胶聚合物包括其中的细胞时，交联的水凝胶聚合物被粉碎，以便抑制交联的水凝胶聚合物中包含的细胞数量的减少。交联的水凝胶聚合物通过任何破碎方法粉碎，包括：用固定刀片和旋转刀片剪切交联的水凝胶聚合物; 用具有一对旋转叶片的切割器切割交联的水凝胶聚合物，所述一对旋转叶片安装在不同的轴上并旋转，同时至少部分地彼此重叠; 用具有旋转叶片的切割机使用润滑剂切割交联的水凝胶聚合物; 并在冷冻后破碎交联的水凝胶聚合物。通过使用上述方法，可以在抑制交联水凝胶聚合物中含有的细胞数量的同时，在工业上容易地批量生产具有优异吸收性能的多孔吸水性树脂。

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