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1.发明申请公开(公告)号：US20140058346A1
公开(公告)日：2014-02-27
申请号：US14029878
申请日：2013-09-18
IPC分类号： A61L15/24 , A61F13/535
CPC分类号： A61L15/24 , A61F13/535 , A61F2013/15463 , A61F2013/530569 , A61F2013/530591 , A61F2013/530708 , A61F2013/530737 , A61F2013/530766 , A61L15/42 , A61L15/60
摘要： To improve the heat retention by diapers and other absorbents, a heat retention indicator 1 of a water-absorbing resin which is defined in the present invention needs be 3.0° C./min or less and also that particular requirements need be met to satisfy this condition. If the requirements are met, a water-absorbing resin, absorbent, and absorbent article can be provided which has a heat retention indicator 1 of 0 to 3.0° C./min or less and which exhibits excellent heat retention and absorption.
摘要翻译： 为了提高尿布和其它吸收剂的保温性，本发明中限定的吸水性树脂的保温指示剂1为3.0℃/分以下，也满足特定要求 条件。 如果满足要求，则可以提供吸水性树脂，吸收性物品和吸收性物品，其具有0〜3.0℃/分钟以下的保温指示剂1，并且显示优异的保温性和吸收性。
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2.发明授权Water-absorbing agent, manufacture method thereof, and absorbent and absorbent article made therefrom 有权吸水剂及其制造方法以及由其制成的吸收性吸收性物品公开(公告)号：US09308290B2
公开(公告)日：2016-04-12
申请号：US14029878
申请日：2013-09-18
CPC分类号： A61L15/24 , A61F13/535 , A61F2013/15463 , A61F2013/530569 , A61F2013/530591 , A61F2013/530708 , A61F2013/530737 , A61F2013/530766 , A61L15/42 , A61L15/60
摘要： To improve the heat retention by diapers and other absorbents, a heat retention indicator 1 of a water-absorbing resin which is defined in the present invention needs be 3.0° C./min or less and also that particular requirements need be met to satisfy this condition. If the requirements are met, a water-absorbing resin, absorbent, and absorbent article can be provided which has a heat retention indicator 1 of 0 to 3.0° C./min or less and which exhibits excellent heat retention and absorption.
摘要翻译： 为了提高尿布和其它吸收剂的保温性，本发明中限定的吸水性树脂的保温指示剂1为3.0℃/分以下，也满足特定要求 条件。 如果满足要求，则可以提供吸水性树脂，吸收性物品和吸收性物品，其具有0〜3.0℃/分钟以下的保温指示剂1，并且显示优异的保温性和吸收性。
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3.发明申请Water-absorbing agent, manufacture method thereof, and absorbent and absorbent article made therefrom 审中-公开吸水剂及其制造方法以及由其制成的吸收性吸收性物品公开(公告)号：US20070173610A1
公开(公告)日：2007-07-26
申请号：US10581603
申请日：2004-12-10
IPC分类号： C08F120/10
CPC分类号： A61L15/24 , A61F13/535 , A61F2013/15463 , A61F2013/530569 , A61F2013/530591 , A61F2013/530708 , A61F2013/530737 , A61F2013/530766 , A61L15/42 , A61L15/60
摘要： We have found that to improve the heat retention by diapers and other absorbents, a heat retention indicator 1 of a water-absorbing resin which is defined in the present invention needs be 3.0° C./min or less and also that particular requirements need be met to satisfy this condition. If the requirements are met, a water-absorbing resin, absorbent, and absorbent article can be provided which has a heat retention indicator 1 of 0 to 3.0° C./min or less and which exhibits excellent heat retention and absorption.
摘要翻译： 我们已经发现，为了提高尿布和其它吸收剂的保温性能，本发明中限定的吸水性树脂的保温指示剂1需要为3.0℃/ min以下，特别要求为 满足这个条件。 如果满足要求，则可以提供吸水性树脂，吸收性物品和吸收性物品，其具有0〜3.0℃/分钟以下的保温指示剂1，并且显示优异的保温性和吸收性。
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4.发明授权Polyacrylic acid (salt)-based water absorbent resin powder and method for producing the same 有权聚丙烯酸（盐）系吸水树脂粉末及其制造方法公开(公告)号：US09044525B2
公开(公告)日：2015-06-02
申请号：US14129792
申请日：2012-06-29
CPC分类号： A61L15/26 , A61L15/60 , C08F20/06 , C08F220/06 , C08J3/245 , C08J2333/02 , C08K5/0091 , C08K5/175 , C08L33/02 , Y10T428/2982 , C08F2222/1013
摘要： Provided is a water absorbent resin having excellent liquid permeability, water absorbent speed, anti-impact stability, and weather resistance. Provided is a polyacrylic acid (salt)-based water absorbent resin powder in which the water absorption capacity without load (CRC) is 30 to 45 [g/g], the water absorption capacity under load (AAP 0.3) is 20 to 35 [g/g], the water absorption capacity under load (AAP 0.7) is 10 to 28 [g/g], and the weight average particle diameter (D50) is 300 to 500 μm, characterized by including p-methoxyphenol; having a degradable soluble component (0.05% L-A (saline) for 2 hours/60° C., one hour extraction rinse/room temperature) of 40% by weight or less; and having a internal gas bubbles ratio of 0.1 to 2.5%, as specified by the following equation. (Internal gas bubbles ratio)[%]={(True density)−(Apparent density)}/(True density)×100
摘要翻译： 提供具有优异的透液性，吸水速度，抗冲击稳定性和耐候性的吸水性树脂。 本发明提供无负载吸水能力（CRC）为30〜45 [g / g]的聚丙烯酸（盐）系吸水性树脂粉末，负荷吸水量（AAP 0.3）为20〜35 [ g / g]，负荷下的吸水量（AAP 0.7）为10〜28 [g / g]，重均粒径（D50）为300〜500μm，其特征在于包括对甲氧基苯酚; 具有40重量％以下的可降解可溶成分（0.05％L-A（盐水）2小时/ 60℃，1小时萃取冲洗/室温） 内部气泡比为0.1〜2.5％，如下式所示。 （内部气泡比）[％] = {（真密度） - （表观密度）} /（真密度）×100
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公开(公告)号：US20120298915A1
公开(公告)日：2012-11-29
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
IPC分类号： C08L33/02
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.
摘要翻译： 提供了含有给定量的水的吸水性树脂粉末的制造方法，其具有低的粉尘含量，并且具有高的材料性能。 当以工业规模生产经历表面交联的吸水树脂粉末时，消除了生产中的各种问题，并且可以长期稳定地操作，而不会导致树脂的材料性能的劣化。 即使长时间持续该过程，材料性能也稳定（标准偏差降低）或改善（AAP改善）。 吸水性树脂的制造方法按照以下顺序包括分级吸水性树脂的第一分级工序，分级后的表面交联工序，向吸水性树脂粉末中添加水的添加水添加工序 在表面交联之后或期间，第二分级步骤和输送步骤。
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6.发明申请POLYACRYLIC ACID (SALT)-TYPE WATER ABSORBENT RESIN AND METHOD FOR PRODUCING OF SAME 有权聚丙烯酸（盐）型吸水树脂及其制造方法公开(公告)号：US20120172536A1
公开(公告)日：2012-07-05
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： C08F120/06
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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7.发明申请Particulate water-absorbing agent with water-absorbing resin as main component, method for production of the same, and absorbing article 审中-公开具有吸水性树脂作为主要成分的颗粒状吸水剂，其制造方法和吸收性物品公开(公告)号：US20090036855A1
公开(公告)日：2009-02-05
申请号：US11658879
申请日：2005-08-05
CPC分类号： B01J20/261 , A61F13/531 , A61F2013/530569 , A61F2013/5307 , A61F2013/530751 , A61L15/60 , B01J20/26 , B01J20/2803 , B01J2220/68 , C08F6/18 , C08F220/06
摘要： Reversed phase suspension polymerization is allowed while controlling content of minor components in monomer, particularly controlling a content of acetic acid and propionic acid being not higher than 500 ppm, controlling a content of acrylic acid dimer being not higher than 1000 ppm, in acrylic acid. Cross-linked polymer obtained by the polymerization is subjected to a surface crosslinking treatment without substantially using an organic solvent, and under heating at high temperature (150° C. or higher and 250° C. or lower). Thereafter, agglomeration is carried out without substantially using an organic solvent. Accordingly, a particulate water-absorbing agent including a water-absorbing resin having superior property, and being suited for practical applications at high concentrations in absorbing cores such as a diaper and the like without generation of any odor of the organic solvent can be obtained because no volatile organic compound is included.
摘要翻译： 在丙烯酸中控制丙烯酸二聚体的含量控制丙烯酸二聚体的含量不高于500ppm，特别是控制乙酸和丙酸的含量不高于500ppm，同时控制单体中少量成分的含量，进行反相悬浮聚合。 通过聚合得到的交联聚合物基本上不使用有机溶剂进行表面交联处理，并在高温（150℃以上且250℃以下）下加热。 此后，基本上不使用有机溶剂进行附聚。 因此，可以获得包含具有优异性能的吸水性树脂的颗粒状吸水剂，并且可以获得不产生有机溶剂的任何气味的高吸收性芯材如尿布等的实际应用的颗粒状吸水剂，因为 不含挥发性有机化合物。
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公开(公告)号：US20070141338A1
公开(公告)日：2007-06-21
申请号：US10588530
申请日：2005-03-29
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 particulate water absorbing agent for a thin type absorbing substrate suitable for actual use. A particulate water absorbing agent having irregularly pulverized shape, characterized by comprising, a surface crosslinked water-absorbing resin obtained by crosslinking polymerization of an unsaturated monomer with an acid group and/or salts thereof, which absorbing agent contains agglomerated particles therein and further satisfies (i) centrifuge retention capacity (CRC) in a physiological saline solution of not lower than 32 g/g, (ii) mass median particle size (D50) of 200 to 400 μm, and (iii) particles smaller than 600 μm and not smaller than 150 μm of 95 to 100% by weight. By using the particulate water absorbing agent, such absorbing articles can be obtained as have few rugged surface after water absorption, excellent liquid permeation property.
摘要翻译： 本发明提供一种适用于实际使用的薄型吸收性基材用颗粒状吸水剂。 具有不规则粉碎形状的颗粒状吸水剂，其特征在于，包含通过使不饱和单体与酸基和/或其盐交联聚合得到的表面交联吸水性树脂，所述吸收剂含有附聚颗粒，并进一步满足（ i）在不低于32g / g的生理盐水溶液中离心保留容量（CRC），（ii）质量中值粒径（D50）为200-400μm，和（iii）小于600μm的颗粒而不是更小的颗粒 95％至100％重量的150mg。 通过使用颗粒状吸水剂，可以获得这样的吸收制品，其吸水后的表面几乎不渗透，液体渗透性优异。
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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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10.发明申请公开(公告)号：US20100062252A1
公开(公告)日：2010-03-11
申请号：US11816200
申请日：2006-02-10
IPC分类号： C08F120/06 , C08F8/34 , B32B5/16
CPC分类号： A61L15/60 , B01J20/26 , B01J20/264 , B01J20/267 , B01J20/28004 , B01J20/2803 , B01J20/28047 , B01J20/30 , B01J20/3028 , B01J2220/68 , C08J3/245 , C08J2300/14 , Y10T428/2982 , Y10T428/2991 , Y10T428/2998
摘要： An object of the present invention is to provide a water absorbing agent having a low amount of residual monomer, small variance of the amount of residual monomer among ranges of particle size distribution and favorable absorption properties, and being sanitary; an absorbing article; and a method for the production of a water absorbing agent. The water absorbing agent of the present invention has the amount of residual monomer of not higher than 500 ppm, and a residual monomer index of not greater than 0.30. The method for the production includes a first step of obtaining a hydrogel polymer by polymerizing an aqueous solution of a monomer including an unsaturated carboxylic acid and/or a salt thereof in the presence of a crosslinking agent; a second step of obtaining a water absorbent resin precursor which is in powder form and includes particles having a particle size of 300 to 850 μm and particles having a particle size of smaller than 300 μm as main components by drying said hydrogel polymer followed by pulverization and classification to adjust the particle size distribution, a third step of obtaining a water absorbent resin by heating a mixture of said water absorbent resin precursor and a surface crosslinking agent, which can form an ester bond around the surface of said water absorbent resin precursor, a fourth step of adding by spraying an aqueous solution that includes a sulfur-containing reducing agent to said water absorbent resin, and a fifth step of subjecting the mixture of the water absorbent resin and said aqueous solution to a heat treatment under an airflow of not lower than 40° C. but not higher than 120° C.
摘要翻译： 本发明的目的是提供一种具有少量残留单体的吸水剂，在粒度分布范围和吸收性能良好之间的残留单体量的变化小，并且是卫生的; 吸收物品 和吸水剂的制造方法。 本发明的吸水剂的残留单体量不高于500ppm，残留单体指数不大于0.30。 制造方法包括在交联剂的存在下，通过使包含不饱和羧酸和/或其盐的单体的水溶液聚合而获得水凝胶聚合物的第一步骤; 第二步是通过干燥所述水凝胶聚合物，然后粉碎，得到粉末形式的吸水性树脂前体，并且包括粒度为300〜850μm的粒子和粒径小于300μm的粒子作为主要成分， 分级调整粒度分布，第三步骤是通过加热吸水性树脂前体和表面交联剂的混合物来获得吸水性树脂，该混合物可以在吸水性树脂前体的表面周围形成酯键， 第五步骤是通过将含有硫的还原剂的水溶液喷雾到所述吸水性树脂中而进行添加，第五步是在吸水性树脂和所述水溶液的混合物在不低于 超过40℃但不高于120℃
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