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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：US20080161512A1
公开(公告)日：2008-07-03
申请号：US11883621
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 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，化合物的至少一种化合物含量为0-10ppm（重量），所述化合物选自原水仙苷和糠醛。
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公开(公告)号：US07196139B2
公开(公告)日：2007-03-27
申请号：US10746873
申请日：2003-12-24
CPC分类号： A61L15/60 , B01J20/26 , B01J20/28004 , B01J2220/44 , C08F2/14 , C08F2/32 , C08J3/005 , C08J2300/14 , Y10S524/916
摘要： A water-absorbent resin composition excelling in an absorption capacity under pressure, a first transition of initial absorption, and the small amount of rewet is provided. It comprises a water-absorbent resin obtained by aqueous solution polymerization and by reversed-phase suspension or reversed-phase emulsion polymerization and shows a CSF of not less than 20 g/g or an AAP of not less than 20 g/g or an SFC of not less than 10 (unit: 10−7×cm3×s×g−1). The gaps among resin particles owing to the difference in shape form optimum gap widths for the sake of capillarity. The resin composition consequently formed, therefore, manifests such excellent properties without the influences of a surfactant or an emulsifier.
摘要翻译： 提供了在压力下具有优异的吸水性树脂组合物，初始吸收的第一转变和少量的再湿润性。 它包括通过水溶液聚合和通过反相悬浮或反相乳液聚合获得的吸水性树脂，并且显示出不小于20g / g或不小于20g / g的AAP的CSF或SFC 不小于10（单位：10〜7×x 3×xsxg -1）。 为了毛细作用，由于形状差异，树脂颗粒之间的间隙形成最佳的间隙宽度。 因此，由此形成的树脂组合物在没有表面活性剂或乳化剂的影响的情况下表现出优异的性能。
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4.发明授权Particulate water absorbent containing water absorbent resin as a main component 有权含吸水性树脂的颗粒吸水剂为主要成分公开(公告)号：US07435477B2
公开(公告)日：2008-10-14
申请号：US10509000
申请日：2004-02-09
IPC分类号： B32B5/16
CPC分类号： C08F220/06 , B01J20/26 , B01J20/261 , B01J20/267 , B01J20/28004 , B01J20/28016 , C08F222/1006 , Y10T428/2998 , Y10T428/31855 , Y10T428/3188
摘要： A particulate water absorbent contains a water absorbent resin as a main component, the water absorbent resin being a crosslinked polymer of a water-soluble unsaturated monomer. The water absorbent resin is particular in shape and contains particles of a particle size in a range of not less than 106 μm and less than 850 μm in an amount of not less than 90 mass percent with respect to the total mass of the water absorbent resin contained in the particulate water absorbent. The particulate water absorbent has a first salt concentration absorption index of not less than 0.60 as measured by a formula below when ion exchange water is used as an aqueous solution of a constant salt concentration: (salt concentration absorption index)=(absorbency against a pressure of 4.83 kPa with respect to the aqueous solution of a constant salt concentration)/(absorbency against no pressure with respect to the aqueous solution of a constant salt concentration).
摘要翻译： 颗粒状吸水剂含有吸水性树脂作为主要成分，吸水性树脂为水溶性不饱和单体的交联聚合物。 吸水性树脂特别是形状，并且相对于吸水性树脂的总质量，其粒径在不小于106μm和小于850μm的范围内，其量不小于90质量％ 包含在颗粒状吸水剂中。 当使用离子交换水作为恒盐浓度的水溶液时，颗粒状吸水剂的第一盐浓度吸收指数为不低于0.60;（盐浓度吸收指数）=（吸收压力 相对于恒盐浓度的水溶液为4.83kPa）/（相对于恒盐浓度的水溶液的无压吸收性）。
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5.发明申请Particulate water absorbent containing water absorbent resin as a main component 有权含吸水性树脂的颗粒吸水剂为主要成分公开(公告)号：US20050221980A1
公开(公告)日：2005-10-06
申请号：US10509000
申请日：2004-02-09
IPC分类号： B01J20/26
CPC分类号： C08F220/06 , B01J20/26 , B01J20/261 , B01J20/267 , B01J20/28004 , B01J20/28016 , C08F222/1006 , Y10T428/2998 , Y10T428/31855 , Y10T428/3188
摘要： A particulate water absorbent contains a water absorbent resin as a main component, the water absorbent resin being a crosslinked polymer of a water-soluble unsaturated monomer. The water absorbent resin is particular in shape and contains particles of a particle size in a range of not less than 106 μm and less than 850 μm in an amount of not less than 90 mass percent with respect to the total mass of the water absorbent resin contained in the particulate water absorbent. The particulate water absorbent has a first salt concentration absorption index of not less than 0.60 as measured by a formula below when ion exchange water is used as an aqueous solution of a constant salt concentration: (salt concentration absorption index)=(absorbency against a pressure of 4.83 kPa with respect to the aqueous solution of a constant salt concentration)/(absorbency against no pressure with respect to the aqueous solution of a constant salt concentration).
摘要翻译： 颗粒状吸水剂含有吸水性树脂作为主要成分，吸水性树脂为水溶性不饱和单体的交联聚合物。 吸水性树脂特别是形状，并且相对于吸水性树脂的总质量，其粒径在不小于106μm和小于850μm的范围内，其量不小于90质量％ 包含在颗粒状吸水剂中。 当使用离子交换水作为恒盐浓度的水溶液时，颗粒状吸水剂的第一盐浓度吸收指数为不低于0.60;（盐浓度吸收指数）=（吸收压力 相对于恒盐浓度的水溶液为4.83kPa）/（相对于恒盐浓度的水溶液的无压吸收性）。
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6.发明申请Particulate water absorbing agent with water-absorbing resin as main component 审中-公开颗粒吸水剂以吸水树脂为主要成分公开(公告)号：US20070066167A1
公开(公告)日：2007-03-22
申请号：US10570965
申请日：2005-03-29
IPC分类号： B32B5/02
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , Y10T428/249924 , Y10T428/254 , Y10T428/2982 , Y10T428/2991 , Y10T428/2998 , Y10T442/2344
摘要： The present invention provides a water absorbing agent which maintains excellent water absorbing properties for a long time, even when urine composition of human urine varies depending. A particulate water absorbing agent comprising a water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer, which exhibits Centrifuge retention capacity in a physiological saline solution of not lower than 32 g/g, mass median particle size (D50) of 200 to 400 μm, ratio of particles with diameter of smaller than 150 μm of 0 to 2% by weight, and increased extractables by deterioration of 0 to 15% by weight and extractables for one hour in deterioration test liquid of 0.1 to 30% by weight.
摘要翻译： 本发明提供一种长时间保持优异的吸水性的吸水剂，即使在尿液的尿组成变化的情况下也是如此。 一种颗粒状吸水剂，其特征在于，含有通过使不饱和单体交联聚合而获得的吸水性树脂，其在生理盐水溶液中的离心保持容量不低于32g / g，质量中值粒径（D50）为200〜400 妈妈，直径小于150μm的粒子的比例为0〜2重量％，通过劣化0〜15重量％的提高物，0.1〜30重量％的劣化试验液中的提取物1小时。
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7.发明授权Polyacrylic acid (salt)-type water absorbent resin and method for producing of same 有权聚丙烯酸（盐）型吸水性树脂及其制造方法公开(公告)号：US09138505B2
公开(公告)日：2015-09-22
申请号：US13392256
申请日：2010-08-27
申请人： Kozo Nogi , Kunihiko Ishizaki , Katsuyuki Wada
发明人： Kozo Nogi , Kunihiko Ishizaki , Katsuyuki Wada
IPC分类号： C08F20/02 , A61L15/24 , C08J3/24 , A61L15/60 , C08F120/06 , C08F220/06
CPC分类号： A61L15/24 , A61L15/60 , C08F120/06 , C08F220/06 , C08J3/24 , C08J3/245 , C08J2300/14 , C08J2333/02 , C08L33/08 , C08F2222/1013
摘要： Disclosed is a method for producing a water absorbent resin, by which a surface-crosslinked water absorbent resin having excellent physical properties can be efficiently obtained at low cost, while assuring high productivity. When the production scale is increased to a continuous production on a huge scale (for example, 1 t/hr or more), the physical properties are improved and stabilized (for example, standard deviation of the physical properties is reduced) by a surface-crosslinking treatment, and the absorption against pressure (AAP) and liquid permeability (SFC) are further improved. Specifically disclosed is a method for continuously producing a polyacrylic acid (salt)-type water absorbent resin powder, which comprises: a step of preparing an aqueous monomer solution using an acrylic acid (salt); a step of polymerizing the aqueous monomer solution; a shredding step of a hydrous gel-like crosslinked polymer during or after the polymerization; a step of drying the thus-obtained particulate hydrous gel-like crosslinked polymer; a step of crushing and classifying the dried product; a step of heating and surface-crosslinking after the classification; and a step of cooling after the surface-crosslinking. In the method for producing a polyacrylic acid (salt)-type water absorbent resin, the internal area of the cooling device that is used in the cooling step is 0.25-0.95 times the internal area of the heating device that is used in the surface-crosslinking step.
摘要翻译： 公开了一种生产吸水性树脂的方法，通过该方法可以以低成本有效地获得具有优异物理性能的表面交联吸水性树脂，同时确保高生产率。 当生产规模以大规模（例如1吨/小时以上）增加到连续生产时，通过表面活性剂改善和稳定物理性能（例如物理性能的标准偏差） 交联处理，耐压吸收（AAP）和液体渗透性（SFC）进一步提高。 具体公开了一种连续生产聚丙烯酸（盐）型吸水性树脂粉末的方法，其包括：使用丙烯酸（盐）制备单体水溶液的步骤; 聚合单体水溶液的步骤; 在聚合期间或之后的含水凝胶状交联聚合物的粉碎步骤; 干燥由此得到的颗粒含水凝胶状交联聚合物的步骤; 破碎和分级干燥产品的步骤; 分类后加热和表面交联的步骤; 和表面交联后的冷却步骤。 在聚丙烯酸（盐）型吸水性树脂的制造方法中，冷却工序中使用的冷却装置的内部面积为表面活性剂中使用的加热装置的内部面积的0.25〜0.95倍， 交联步骤。
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公开(公告)号：US08487048B2
公开(公告)日：2013-07-16
申请号：US10555707
申请日：2004-05-07
CPC分类号： C08J3/243 , A61L15/60 , C08F8/00 , C08F2800/20 , C08F2810/20 , C08J3/245 , C08J2300/14 , Y10T428/254 , C08L33/02 , C08F220/04
摘要： Objects of the present invention are: to provide a water-absorbent resin which exhibits excellent balances between water absorption performances; and further to provide a process by which a water-absorbent resin having excellent absorption properties can be produced even if no hydrophilic organic solvent is used, or even if its amount is extremely reduced, when carrying out the surface-crosslinking treatment; and further to provide a water-absorbent resin optimum to absorbent articles such as diapers. As a means of achieving these objects, the process according to the present invention for production of the water-absorbent resin comprises: a step (1) of polymerizing a monomer component including an acid-group-containing unsaturated monomer as an essential component to thereby obtain a hydrogel polymer; a step (2) of drying and pulverizing the hydrogel polymer to thereby obtain a water-absorbent resin powder; a step (3) of adding a surface-crosslink-treating agent to the water-absorbent resin powder, wherein the surface-crosslink-treating agent includes a surface-crosslinking agent and water as essential components and has a hydrophilic organic solvent content of 0 to 10 mass % relative to the surface-crosslink-treating agent; and a step (4) of heating the resultant mixture to thereby carry out surface-crosslinking treatment; wherein a time of from the end of the step (3) till the beginning of the step (4) is within 5 minutes.
摘要翻译： 本发明的目的是提供吸水性能优异的平衡性的吸水性树脂; 进一步提供一种在进行表面交联处理时即使不使用亲水性有机溶剂也可以产生吸水性优异的吸水性树脂，或者即使其量极少地减少的方法; 并且进一步提供对吸收制品如尿布最佳的吸水性树脂。 作为实现这些目的的手段，本发明的制造吸水性树脂的方法包括：使包含含酸基的不饱和单体作为必要成分的单体成分聚合的工序（1） 获得水凝胶聚合物; 干燥粉碎水凝胶聚合物从而获得吸水性树脂粉末的步骤（2）; 将表面交联处理剂添加到吸水性树脂粉末中的步骤（3），其中表面交联处理剂包括表面交联剂和水作为必要组分，并且亲水性有机溶剂含量为0 相对于表面交联处理剂为10质量％ 和加热所得混合物从而进行表面交联处理的步骤（4）; 其中从步骤（3）的结束到步骤（4）的开始的时间在5分钟内。
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9.发明授权Water-absorbent composition, process for production thereof, absorbent and absorbing product 有权吸水剂组合物，其制造方法，吸收和吸收产品公开(公告)号：US07825169B2
公开(公告)日：2010-11-02
申请号：US10448456
申请日：2003-05-30
IPC分类号： A61L9/013
CPC分类号： A61L15/60 , A61F13/8405 , A61L9/01 , A61L15/40 , B01J20/267 , B01J2220/4875
摘要： A water-absorbent composition includes: a specific plant extract; a water-absorbent resin whose surface portion and/or periphery thereof is treated; and/or a water-absorbent resin having a specific property. Specifically, it is preferable to use a water-absorbent resin having three characteristics: (1) a specific neutralization rate, (2) a specific particle diameter, and (3) a specific plant extract. The water-absorbent composition has a superior deodorant performance and an absorbent characteristic when the water-absorbent composition is used (provided) in an absorbing product such as a paper diaper, thereby providing a superior deodorant performance and a superior absorbent characteristic to the foregoing absorbing product.
摘要翻译： 吸水组合物包括：特定植物提取物; 其表面部分和/或其周边被处理的吸水性树脂; 和/或具有特定性质的吸水性树脂。 具体而言，优选使用具有三个特征的吸水性树脂：（1）特定中和率，（2）特定粒径，和（3）特定植物提取物。 吸水性组合物在纸尿布等吸收体中使用（设置）吸水性组合物时具有优异的除臭性能和吸收特性，从而为上述吸收性物质提供优异的除臭性能和优异的吸收特性 产品。
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公开(公告)号：US09976001B2
公开(公告)日：2018-05-22
申请号：US13578118
申请日：2011-02-10
申请人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
发明人： Sumio Okuda , Kunihiko Ishizaki , Katsuyuki Wada
CPC分类号： C08J3/12 , B01J20/267 , B01J2220/68 , C08J3/245 , C08J2300/14
摘要： Provided is a process for producing a water-absorbing resin powder which contains a given amount of water added thereto, has a low dust content, and has high material properties. When a water-absorbing resin powder which has undergone surface crosslinking is produced on an industrial scale, various problems concerning production are eliminated and a long-term stable operation is possible without causing a deterioration in the material properties of the resin. Even when the process is continued over a long period, the material properties are stabilized (decrease in standard deviation) or improved (improvement in AAP). The process for producing a water-absorbing resin comprises, in the following order, a first classification step for classifying a water-absorbing resin, a surface crosslinking step after the classification, a water addition step for adding water to the water-absorbing resin powder after or during the surface crosslinking, a second classification step, and a conveying step.
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