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1.发明授权Particulate water absorbing agent including polyacrylic acid (polyacrylate) based water absorbing resin as a principal component, method for production thereof, water-absorbent core and absorbing article in which the particulate water absorbing agent is used 有权以聚丙烯酸（聚丙烯酸酯）系吸水性树脂为主要成分的颗粒状吸水剂，其制造方法，吸水性芯和使用该颗粒状吸水剂的吸收性物品公开(公告)号：US08481664B2
公开(公告)日：2013-07-09
申请号：US11911169
申请日：2006-04-11
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。
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2.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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3.发明申请Particulate Water Absorbing Agent Including Polyacrylic Acid (Polyacrylate) Based Water Absorbing Resin as a Principal Component, Method for Production Thereof, Water-Absorbent Core and Absorbing Article in Which the Particulate Water Absorbing Agent is Used 有权包含聚丙烯酸（聚丙烯酸酯）基吸水树脂作为主要成分的颗粒吸水剂，其制造方法，吸水芯和吸收性物质，其中使用颗粒吸水剂公开(公告)号：US20090318885A1
公开(公告)日：2009-12-24
申请号：US11911169
申请日：2006-04-11
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。
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4.发明申请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：US20070101644A1
公开(公告)日：2007-05-10
申请号：US10581343
申请日：2004-12-06
IPC分类号： 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 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： 含有（A）含羧基的水不溶性吸水性树脂和（B）多价金属化合物的栽培植物用颗粒状保水材料，通过使化合物（B）沉积在rerin（A）上，是 使得具有优异的吸水性而不损害植物的生长成为可能。
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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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7.发明授权Acrylic acid composition and its production process, and process for producing water-absorbent resin using this acrylic acid composition, and water-absorbent resin 有权丙烯酸组合物及其制造方法以及使用该丙烯酸组合物的吸水性树脂的制造方法以及吸水性树脂公开(公告)号：US07049366B2
公开(公告)日：2006-05-23
申请号：US10472039
申请日：2002-12-17
IPC分类号： C08F120/06
摘要： In order to produce inexpensively with high productivity a water-absorbent resin of which: the residual monomer content and the water-extractable content are both low, and the properties are high, and the colorability is low; there is provided a process for producing a water-absorbent resin, which is a process for producing a crosslinked water-absorbent resin by polymerizing a monomer component including acrylic acid and/or its salt in a major proportion wherein the acrylic acid is a product obtained by catalytic gas phase oxidation of propylene and/or propane, with the process being characterized by comprising the steps of: preparing the monomer component from an acrylic acid composition that includes the unneutralized acrylic acid and a methoxyphenol and has a methoxyphenol content of 10 to 160 ppm by weight (based on the unneutralized acrylic acid); and then carrying out radical and/or ultraviolet polymerization of the resultant monomer component.
摘要翻译： 为了低成本地生产低成本的吸水性树脂，其中残留单体含量和可萃取水分均低，性能高，着色性低; 提供了一种生产吸水性树脂的方法，该方法是通过使包含丙烯酸和/或其主要成分的丙烯酸和/或其盐的单体组分聚合来制备交联吸水性树脂的方法，其中丙烯酸是获得的产物 通过丙烯和/或丙烷的催化气相氧化，该方法的特征在于包括以下步骤：由包括未中和丙烯酸和甲氧基苯酚的丙烯酸组合物制备单体组分，并且具有10至160的甲氧基苯酚含量 重量ppm（基于未中和丙烯酸）; 然后进行所得单体组分的自由基和/或紫外聚合。
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公开(公告)号：US20120157648A1
公开(公告)日：2012-06-21
申请号：US13392909
申请日：2010-08-30
IPC分类号： C08F220/06
CPC分类号： C08J3/12 , C08J3/245 , C08J2300/14 , C08J2333/02
摘要： [PROBLEM]It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property.[SOLUTION]A production method for a water-absorbent resin, comprising: a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction; and a drying step for drying the hydrogel; wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine; solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: [MATH. 1] Thickness variation rate (1)=(Maximum thickness of hydrogel in a width direction of the through-flow belt)/(Average thickness of hydrogel in a width direction of the through-flow belt). [EXPRESSION 1]
摘要翻译： 本发明的目的在于有效地获得具有优异性能的吸水性树脂。 [解决方案]一种吸水性树脂的制备方法，包括：通过使单体水溶液进行聚合反应获得水凝胶的聚合步骤; 和干燥步骤，用于干燥水凝胶; 其中干燥步骤中的干燥是使用连续的通流式带式干燥机进行的; 提供给干燥步骤的水凝胶的固体含量为35重量％以上，并且由连续贯流带中的贯流带上的水凝胶的以下表达式1表示的厚度变化率（1）为1.05 到5：[MATH。 1]厚度变化率（1）=（贯穿流动带的宽度方向的水凝胶的最大厚度）/（贯通带的宽度方向的水凝胶的平均厚度）。 [表达1]
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公开(公告)号：US07378453B2
公开(公告)日：2008-05-27
申请号：US10798346
申请日：2004-03-12
CPC分类号： C08J3/124 , C08J2300/14
摘要： A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-absorbing resin powder having excellent physical properties without causing deterioration in physical properties of resin. The surface crosslinking treatment method of a water-absorbing resin powder includes adding a surface crosslinking agent to a water-absorbing resin powder and heat treating the mixture, wherein (1) the water-absorbing resin powder after the heat treatment is stirred and cooled under an air flow; (2) the water-absorbing resin powder after the heat treatment is cooled under an air flow, and at the same time, at least a part of fine particles of the water-absorbing resin powder and/or the residual crosslinking agent is removed by the air flow; or (3) the water-absorbing resin powder after the heat treatment is cooled and simultaneously granulated, and preferably an aqueous solution is added to the water-absorbing resin powder at a temperature of 40-100° C. during the cooling treatment.
摘要翻译： 公开了一种吸水性树脂粉末的表面交联处理方法，其可以克服在工业规模生产表面交联吸水性树脂粉末时遇到的生产中的各种问题，并且可以制备具有优异物理性能的吸水性树脂粉末 而不会导致树脂的物理性能的劣化。 吸水性树脂粉末的表面交联处理方法包括向吸水性树脂粉末中添加表面交联剂，对该混合物进行热处理，其中（1）将热处理后的吸水性树脂粉末在 气流; （2）热处理后的吸水性树脂粉末在空气流下冷却，同时，吸水性树脂粉末和/或残留交联剂的至少一部分微粒被除去 气流; 或者（3）将热处理后的吸水性树脂粉末冷却并同时造粒，优选在冷却处理期间在40〜100℃的温度下向吸水性树脂粉末中添加水溶液。
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10.发明授权公开(公告)号：US06992144B2
公开(公告)日：2006-01-31
申请号：US10229111
申请日：2002-08-28
申请人： Yorimichi Dairoku , Kinya Nagasuna , Yoshihiko Masuda , Nobuyuki Harada , Yoshihiro Motono , Kunihiko Ishizaki
发明人： Yorimichi Dairoku , Kinya Nagasuna , Yoshihiko Masuda , Nobuyuki Harada , Yoshihiro Motono , Kunihiko Ishizaki
IPC分类号： C08F8/32
CPC分类号： C08J3/245 , A61L15/24 , A61L15/60 , C08F220/06 , C08J2300/14 , C08L33/02
摘要： A method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids and a cross-linking agent capable of reacting with the carboxyl group. A water-absorbent agent obtained by adding from 0.005 to 8 parts by weight of an epoxy compound to 100 parts by weight of a water-absorbent resin, exhibiting an absorption capacity without load of at least 45 (g/g), an absorption capacity under load of 20 g/cm2 of not less than 30 (ml/g) and having a residue amount of an epoxy compound of not more than 2 ppm. A water-absorbent composition comprises a polyamino acid (salt) and a water-absorbent resin containing a carboxyl group.
摘要翻译： 制造吸水剂的方法包括将含羧基的吸收性树脂与可溶于选自无机酸，有机酸和聚氨基酸中的至少一种的水溶液中的添加剂混合，以及 能够与羧基反应的交联剂。 通过将0.005〜8重量份的环氧化合物与100重量份的吸水性树脂相加而获得的吸水剂，其表现出无负载的吸收能力为至少45（g / g），吸收能力 在20g / cm 2以下的负载不小于30（ml / g），残留量为不大于2ppm的环氧化合物。 吸水性组合物包含聚氨基酸（盐）和含有羧基的吸水性树脂。
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