公开(公告)号：US20090312183A1

公开(公告)日：2009-12-17

申请号：US12307922

申请日：2007-08-30

申请人： Hirotama Fujimaru ,  Eri Nagasawa ,  Masatoshi Nakamura ,  Hiroyuki Ikeuchi ,  Makoto Nagasawa ,  Ryoko Tahara

发明人： Hirotama Fujimaru ,  Eri Nagasawa ,  Masatoshi Nakamura ,  Hiroyuki Ikeuchi ,  Makoto Nagasawa ,  Ryoko Tahara

IPC分类号： B01J20/26 ,  C08G63/06 ,  B32B5/16

CPC分类号： A61L15/60 ,  A61F2013/530481 ,  A61L15/24 ,  C08F120/06 ,  C08F220/06 ,  Y10T428/2982 ,  C08L33/02

摘要： A particulate water absorbing agent includes a polyacrylic acid (salt) water absorbent resin as a main component, wherein the water absorbent resin includes α-hydroxycarboxylic acid (salt), and the absorbing agent satisfies a specific particle size distribution and a specific water absorbing performance, thereby solving the conventional problems. Further, a production method of the water absorbing agent is characterized in that α-hydroxycarboxylic acid (salt) is added to (a) a monomer aqueous solution whose main component is acrylic acid (salt) and which is being cross-linked and polymerized or (b) a hydrogel polymer after the polymerization. As a result, in the particulate water absorbing agent containing the water absorbent resin as a main component, it is possible to realize both excellent water absorbing performance and excellent coloring prevention effect. Further, it is possible to provide an absorbing article particulate water absorbing agent which is suitable for practical use.

摘要翻译： 颗粒状吸水剂包括聚丙烯酸（盐）吸水性树脂作为主要成分，其中吸水性树脂包括α-羟基羧酸（盐），并且吸收剂满足特定的粒度分布和比吸水性能 从而解决了常规问题。 此外，吸水剂的制造方法的特征在于，在（a）主要成分为丙烯酸（盐）并且被交联聚合的单体水溶液中加入α-羟基羧酸（盐），或 （b）聚合后的水凝胶聚合物。 结果，在含有吸水性树脂作为主要成分的颗粒状吸水剂中，可以实现优异的吸水性能和优异的防着色效果。 此外，可以提供适合于实际应用的吸收性物品颗粒状吸水剂。

公开(公告)号：US20080119626A1

公开(公告)日：2008-05-22

申请号：US11883929

申请日：2006-04-06

申请人： Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Sei Nakahara

发明人： Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Sei Nakahara

IPC分类号： C08F20/06

CPC分类号： C08F220/06 ,  A61L15/60 ,  C08F20/06 ,  C08F222/1006 ,  C08K5/01 ,  C08K5/04 ,  C08L33/02

摘要： An embodiment of the present invention allows for the production, with a high productivity, of a water-absorbent resin having an improved relationship between absorption capacity and water-soluble polymer, which are conflicting properties of the water-absorbent resin, being easily controlled for polymerization reaction, being of no odor, being less colored, and being of high absorption properties (high absorption capacity under load and high PPUP). In one embodiment of the present invention, a process for producing a water-absorbent resin by polymerizing an acrylic acid composition including acrylic acid and/or its salt, the process includes: (a) the step of carrying out radical polymerization of the acrylic acid composition to form a hydrogel crosslinked polymer; and (b) the step of drying the hydrogel crosslinked polymer by application of heat, the acrylic acid composition having an unpolymerizable organic compound content of 1 to 1000 ppm by weight, wherein the unpolymerizable organic compound has a solubility parameter of (1.0 to 2.5)×104(Jm−3)1/2.

摘要翻译： 本发明的一个实施方案允许以高生产率生产具有吸收性能与吸水性树脂相互矛盾的吸水性聚合物之间关系改善的吸水性树脂，容易控制 聚合反应，无异味，颜色较少，吸收性高（负载下的高吸收能力和高PPUP）。 在本发明的一个实施方案中，通过使包含丙烯酸和/或其盐的丙烯酸组合物聚合来制备吸水性树脂的方法包括：（a）进行丙烯酸的自由基聚合的步骤 组合物以形成水凝胶交联聚合物; 和（b）通过加热干燥水凝胶交联聚合物的步骤，所述丙烯酸组合物具有1-1000ppm重量的不可聚合有机化合物含量，其中不可聚合的有机化合物的溶解度参数为（1.0-2.5） x 10 4（Jm -3 -3）1/2 1/2。

公开(公告)号：US20050118423A1

公开(公告)日：2005-06-02

申请号：US10510733

申请日：2004-02-09

申请人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Kozo Nogi

发明人： Yoshifumi Adachi ,  Takahiro Kitano ,  Hirotama Fujimaru ,  Kozo Nogi

IPC分类号： A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  C08J3/12 ,  C08K5/098 ,  C08L101/14 ,  A61F13/00 ,  B32B5/16

CPC分类号： C08J3/12 ,  A61L15/60 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J20/28016 ,  B01J2220/68 ,  C08J2300/14 ,  C08J2333/00 ,  Y10T428/254 ,  Y10T428/2982

摘要： The particulate water absorbent has a cross-linking structure therein, and contains (i) a particulate water absorbent resin having a cross-linking structure on a surface therof and (ii) not less than 0.001 mass % and less than 10 mass % of anorganic acid multivalent metal salt whose molecule contains not less than seven carbon atoms. Futher, the particulate water absorbent contains 90 mass % of particles, whose particle diameter is not less than 106 μm and 850 μm, with respect to the particulate water absorbent.

摘要翻译： 颗粒状吸水剂在其中具有交联结构，并且包含（i）在表面上具有交联结构的颗粒状吸水性树脂，和（ii）不小于0.001质量％且小于10质量％的无机物 其分子含有不少于7个碳原子的酸性多价金属盐。 此外，相对于颗粒状吸水剂，颗粒状吸水剂含有90质量％的粒径不小于106μm和850μm的颗粒。

公开(公告)号：US06727345B2

公开(公告)日：2004-04-27

申请号：US10183381

申请日：2002-06-28

申请人： Katsuhiro Kajikawa ,  Toru Nishioka ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

发明人： Katsuhiro Kajikawa ,  Toru Nishioka ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

IPC分类号： C08J300

CPC分类号： C08J3/12 ,  B29B9/12 ,  B29B9/16 ,  B29B13/021 ,  B29B2009/125 ,  B29B2009/163 ,  B29K2105/251 ,  B29K2995/0092 ,  C08J2333/08 ,  G01F23/44

摘要： A surface-modified water-absorbent resin powder is produced continuously with high productivity in a state where the particle diameter distribution is narrow and where the properties are high by a process comprising a polymerizing step, a drying step, a pulverizing step, a classifying step, and a surface-modifying step, and further, conveying steps of connecting them, wherein the conveying steps include at least two hoppers for storing the water-absorbent resin powder. A powder surface detector used favorably for this process includes a float hung down by a hanging line.

摘要翻译： 通过包括聚合步骤，干燥步骤，粉碎步骤，分级步骤在内的方法，在粒径分布窄并且性能高的状态下，以高生产率连续生产表面改性的吸水性树脂粉末 以及表面修饰工序，进一步地连接它们的输送步骤，其中输送步骤包括至少两个储存吸水性树脂粉末的料斗。 用于该方法的粉末表面检测器包括悬挂在悬挂线上的浮子。

公开(公告)号：US06716894B2

公开(公告)日：2004-04-06

申请号：US10187959

申请日：2002-07-03

申请人： Katsuhiro Kajikawa ,  Toru Nishioka ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

发明人： Katsuhiro Kajikawa ,  Toru Nishioka ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

IPC分类号： C08F246

CPC分类号： C08J3/28 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  C08J2300/14 ,  Y10S428/913 ,  Y10S524/906 ,  Y10S526/93 ,  Y10T428/2982 ,  Y10T428/31855

摘要： The present invention provides: a water-absorbent resin powder, which includes no fine metallic foreign substance, and in which the deterioration is suppressed; its production process; and uses. The present invention production process for a water-absorbent resin powder comprises the steps of: polymerizing an unsaturated monomer; and drying the resultant crosslinked hydrogel polymer, wherein the water-absorbent resin powder has a crosslinked structure and a mass-average particle diameter of 300 to 600 &mgr;m wherein the ratio of fine particles having particle diameters of not larger than 150 &mgr;m is less than 10 mass % of the water-absorbent resin powder, with the production process being characterized by further comprising a magnetic-flux irradiation step of passing a magnetic field having a magnetic flux density of not less than 0.05 Wb/m2 through the water-absorbent resin powder after the drying step in the production process.

摘要翻译： 本发明提供：不含金属异物的吸水性树脂粉末，其劣化被抑制; 其生产工艺; 并使用。 本发明的吸水性树脂粉末的制造方法包括以下步骤：使不饱和单体聚合; 并干燥得到的交联水凝胶聚合物，其中吸水性树脂粉末具有交联结构，质量平均粒径为300-600μm，其中粒径不大于150μm的细颗粒的比例小于10 质量％的吸水性树脂粉末，其制造方法的特征在于进一步包括磁通照射步骤，使具有不小于0.05Wb / m 2的磁通密度的磁场通过水 - 吸收性树脂粉末在干燥步骤后的生产过程中。

公开(公告)号：US09187579B2

公开(公告)日：2015-11-17

申请号：US12524989

申请日：2008-02-04

申请人： Hiroyuki Ikeuchi ,  Hirotama Fujimaru ,  Makoto Nagasawa ,  Kazuhiko Sakamoto ,  Shigeru Sakamoto ,  Kazushi Torii ,  Ryoko Tahara

发明人： Hiroyuki Ikeuchi ,  Hirotama Fujimaru ,  Makoto Nagasawa ,  Kazuhiko Sakamoto ,  Shigeru Sakamoto ,  Kazushi Torii ,  Ryoko Tahara

IPC分类号： B01J20/22 ,  B01J20/26 ,  C08F20/06 ,  C08F2/44 ,  C08F220/06 ,  C08L33/02 ,  A61F13/53 ,  C08F222/10 ,  C08K5/00 ,  C08L71/02

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);  Equation 1: CPI=(GEX/residual monomer content)×100  Equation 3: 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，更低的水溶性含量和残留的单体含量）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/或其盐的颗粒状吸水剂，该颗粒状吸水剂具有 Hunter b值的表面颜色在-5至10的范围内，并且交联吸收特性指数（CPI）在1至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）; 方程1：CPI =（GEX /残留单体含量）×100等式3：其中GV是盐水中的凝胶体积，Ln（水溶性含量）是水溶性含量的对数自然。

公开(公告)号：US09062140B2

公开(公告)日：2015-06-23

申请号：US11883929

申请日：2006-04-06

申请人： Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Sei Nakahara

发明人： Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Sei Nakahara

IPC分类号： C08F20/06 ,  C08F220/06 ,  A61L15/60 ,  C08F222/10 ,  C08K5/01 ,  C08K5/04

CPC分类号： C08F220/06 ,  A61L15/60 ,  C08F20/06 ,  C08F222/1006 ,  C08K5/01 ,  C08K5/04 ,  C08L33/02

摘要： An embodiment of the present invention allows for the production, with a high productivity, of a water-absorbent resin having an improved relationship between absorption capacity and water-soluble polymer, which are conflicting properties of the water-absorbent resin, being easily controlled for polymerization reaction, being of no odor, being less colored, and being of high absorption properties (high absorption capacity under load and high PPUP). In one embodiment of the present invention, a process for producing a water-absorbent resin by polymerizing an acrylic acid composition including acrylic acid and/or its salt, the process includes: (a) the step of carrying out radical polymerization of the acrylic acid composition to form a hydrogel crosslinked polymer; and (b) the step of drying the hydrogel crosslinked polymer by application of heat, the acrylic acid composition having an unpolymerizable organic compound content of 1 to 1000 ppm by weight, wherein the unpolymerizable organic compound has a solubility parameter of (1.0 to 2.5)×104(Jm−3)1/2.

摘要翻译： 本发明的一个实施方案允许以高生产率生产具有吸收性能与吸水性树脂相互矛盾的吸水性聚合物之间关系改善的吸水性树脂，容易控制 聚合反应，无异味，颜色较少，吸收性高（负载下的高吸收能力和高PPUP）。 在本发明的一个实施方案中，通过使包含丙烯酸和/或其盐的丙烯酸组合物聚合来制备吸水性树脂的方法包括：（a）进行丙烯酸的自由基聚合的步骤 组合物以形成水凝胶交联聚合物; 和（b）通过加热干燥水凝胶交联聚合物的步骤，所述丙烯酸组合物具有1-1000ppm重量的不可聚合有机化合物含量，其中不可聚合的有机化合物的溶解度参数为（1.0-2.5） ×104（Jm-3）1/2。

公开(公告)号：US08765857B2

公开(公告)日：2014-07-01

申请号：US10581343

申请日：2004-12-06

申请人： Hirotama Fujimaru ,  Yorimichi Dairoku ,  Kunihiko Ishizaki ,  Yoshifumi Adachi ,  Nobuyuki Harada

发明人： Hirotama Fujimaru ,  Yorimichi Dairoku ,  Kunihiko Ishizaki ,  Yoshifumi Adachi ,  Nobuyuki Harada

IPC分类号： C08K3/26 ,  C08K3/22 ,  C08F220/06 ,  A01G7/00

CPC分类号： A01G24/00 ,  A01G24/35

摘要： A particulate water retaining material for cultivating plant comprising (A) a carboxyl group-containing water-insoluble water absorbent resin and (B) a polyvalent metal compound, by having the compound (B) deposited on the rerin (A), it is made possible to possess an outstanding water absorbing property without impairing the growth of a plant.

摘要翻译： 一种含有（A）含羧基的水不溶性吸水性树脂和（B）多价金属化合物的用于培养植物的颗粒状保水材料，通过使化合物（B）沉积在芦丁（A）上，制成 可能具有优异的吸水性，而不损害植物的生长。

公开(公告)号：US08552134B2

公开(公告)日：2013-10-08

申请号：US11693355

申请日：2007-03-29

申请人： Hirotama Fujimaru ,  Eri Goto ,  Kunihiko Ishizaki ,  Atsushi Motoyama

发明人： Hirotama Fujimaru ,  Eri Goto ,  Kunihiko Ishizaki ,  Atsushi Motoyama

IPC分类号： C08F220/06 ,  C08F16/12 ,  C08F2/00 ,  C08F2/16

CPC分类号： C08F220/06 ,  C08F220/26 ,  C08F222/1006

摘要： A method of producing a water-absorbent resin of the present invention reduces amounts of a residual cross-linking agent and a residual surfactant, achieves high productivity, and improves physical properties of the resultant water-absorbent, such as absorption capacity, extractable polymer content, powder friction, and gel crushability. The method includes the steps of: polymerizing an aqueous monomer solution containing as a major component an acrylic acid monomer in the presence of a cross-linking agent; and drying the resultant polymer by heating, in which the cross-linking agent is a multifunctional (meth)acrylate cross-linking agent having polyethylene glycol structural units including a total of 6 to 200 ethylene oxide repeating units, and the aqueous monomer solution includes a mono(meth)acrylate compound having polyethylene glycol structural units in an amount of 0.1 to 30% by weight relative to an amount of the multifunctional (meth)acrylate cross-linking agent.

摘要翻译： 本发明的吸水性树脂的制造方法可以减少残留交联剂和残留的表面活性剂的量，实现高生产率，提高所得吸水剂的物理性能，如吸收能力，可提取聚合物含量 ，粉末摩擦和凝胶粉碎性。 该方法包括以下步骤：在交联剂存在下聚合含有作为主要组分的丙烯酸单体的单体水溶液; 并通过加热干燥所得聚合物，其中交联剂是具有总共6至200个环氧乙烷重复单元的聚乙二醇结构单元的多官能（甲基）丙烯酸酯交联剂，单体水溶液包括 单（甲基）丙烯酸酯化合物，其相对于多官能（甲基）丙烯酸酯交联剂的量为0.1〜30重量％的聚乙二醇结构单元。

公开(公告)号：US20090318885A1

公开(公告)日：2009-12-24

申请号：US11911169

申请日：2006-04-11

申请人： Yorimichi Dairoku ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

发明人： Yorimichi Dairoku ,  Hirotama Fujimaru ,  Kunihiko Ishizaki

IPC分类号： A61F13/53 ,  C08F20/06 ,  B01J20/26 ,  C08F263/02

CPC分类号： A61L15/60 ,  A61L15/24 ,  B01J2220/68 ,  C08L33/02

摘要： As a characteristic that had not been known conventionally at all, “permeability potential under pressure (PPUP)” of a particulate water absorbing agent is regulated, and further, “range of particle size distribution” and “coloring” are concomitantly regulated. The present invention is directed to a particulate water absorbing agent having the following (a) to (c): (a) permeability potential under pressure (PPUP) being 50 to 100%; (b) yellowness index (YI) being 0 to 10, and rate of change of yellowness index (ΔYI) being 100 to 150% following a coloring acceleration test for 14 days at 70±1° C. and the relative humidity of 95±1%; and (c) particles of smaller than 150 μm specified by standard sieve classification accounting for 0 to 5% by weight, weight average particle diameter (D50) being 200 to 550 μm, and logarithmic standard deviation (σζ) of particle size distribution being 0.20 to 0.40.

摘要翻译： 作为传统上已知的特征，调节了颗粒状吸水剂的“压力下的渗透势（PPUP）”，并且进一步调节“粒度分布范围”和“着色”。 本发明涉及具有以下（a）至（c）的颗粒状吸水剂：（a）压力下的渗透势（PPUP）为50〜100％ （b）在70±1℃下，着色加速试验14天，黄色指数（YI）为0〜10，黄色指数变化率（ΔYI）为100〜150％，相对湿度为95± 1％; 和（c）通过标准筛分类而规定的小于150μm的颗粒，其重量平均粒径（D50）为0-5重量％，平均粒径（D50）为200-550μm，粒度分布的对数标准偏差（sigmazeta）为0.20 至0.40。