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公开(公告)号：US08729191B2
公开(公告)日：2014-05-20
申请号：US11883621
申请日：2006-04-06
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 production, with a high productivity, of a water-absorbent resin including 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. In one embodiment of the present invention, acrylic acid composition is neutralized with a basic composition including an iron content of 0.2 to 5 ppm by weight (relative to a basic compound exclusive of a solvent); and then polymerizing a resultant neutralized product, the acrylic acid composition including: (i) a methoxyphenol content of 10 to 200 ppm by weight relative to the weight of acrylic acid; and (ii) at least one compound content of which is 0 to 10 ppm by weight relative to the weight of acrylic acid, the compound being selected from the group consisting of protoanemonin and furfural.
摘要翻译： 本发明的一个实施方案允许以高生产率生产吸水性树脂，其包括吸收性能与吸水性树脂相互矛盾的水溶性聚合物之间的改善的关系，容易控制聚合反应 没有气味，少着色，吸收性高。 在本发明的一个实施方案中，丙烯酸组合物用包含铁含量为0.2-5重量ppm（相对于不包括溶剂的碱性化合物）的碱性组合物中和; 然后使得到的中和产物聚合，所述丙烯酸组合物包括：（i）甲氧基苯酚的含量相对于丙烯酸的重量为10-200ppm; 和（ii）相对于丙烯酸的重量，至少一种化合物含量为0-10ppm（重量），该化合物选自原水鳖素和糠醛。
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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
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。
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23.发明申请Polyacrylic Acid (Salt) Water-Absorbent Resin, Production Process Thereof, and Acrylic Acid Used in Polymerization for Production of Water-Absorbent Resin 有权聚丙烯酸（盐）吸水性树脂及其制造方法和用于生产吸水性树脂的聚合中使用的丙烯酸公开(公告)号：US20080119626A1
公开(公告)日：2008-05-22
申请号：US11883929
申请日：2006-04-06
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。
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24.发明授权公开(公告)号：US06727345B2
公开(公告)日：2004-04-27
申请号：US10183381
申请日：2002-06-28
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。
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公开(公告)号：US06716894B2
公开(公告)日：2004-04-06
申请号：US10187959
申请日：2002-07-03
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。
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公开(公告)号：US6166097A
公开(公告)日：2000-12-26
申请号：US548934
申请日：2000-04-13
CPC分类号： B01F17/0085 , B01D17/0217 , C02F1/04 , C02F1/38 , C02F1/66 , C02F2301/046 , C02F2303/16 , C08J2201/028
摘要： A method for producing a porous material by forming a water-in-oil type high internal phase emulsion, which method is characterized by causing waste water generated during the process of production to be put to reuse. The waste water is preferred to be reused after the removal of impurities or the adjustment of pH. According to this invention, the waste water can be reused up to 50 repetitions, with the result that the amount of feed water and the amount of waste water will be decreased. Incidentally, by adjusting the pH of the water-in-oil type high internal phase emulsion after the reaction thereof in the range of 4-9, it is made possible to continue the reuse of waste water and, at the same time, lower the stimulating property of the produced porous material.
摘要翻译： 一种通过形成油包水型高内相乳液制造多孔材料的方法，其特征在于使生产过程中产生的废水重新使用。 在除去杂质或调节pH后，废水优选重复使用。 根据本发明，废水可重复使用多达50次，从而减少给水量和废水量。 顺便提及，通过在4-9范围内调节油包水型高内相乳液的pH值，可以继续使用废水，同时降低 所产生的多孔材料的刺激性能。
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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。
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28.发明授权Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin 有权聚丙烯酸（盐）吸水性树脂及其制造方法以及用于生产吸水性树脂的聚合中使用的丙烯酸公开(公告)号：US09062140B2
公开(公告)日：2015-06-23
申请号：US11883929
申请日：2006-04-06
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。
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29.发明授权Particulate water retaining material for cultivating plant having water absorbent resin as main component 有权用于培养具有吸水性树脂作为主要成分的植物的颗粒保水材料公开(公告)号：US08765857B2
公开(公告)日：2014-07-01
申请号：US10581343
申请日：2004-12-06
IPC分类号： C08K3/26 , C08K3/22 , C08F220/06 , A01G7/00
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。
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公开(公告)号：US08552134B2
公开(公告)日：2013-10-08
申请号：US11693355
申请日：2007-03-29
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。
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