公开(公告)号：US09308290B2

公开(公告)日：2016-04-12

申请号：US14029878

申请日：2013-09-18

申请人： Katsuyuki Wada ,  Makoto Nagasawa ,  Kunihiko Ishizaki

发明人： Katsuyuki Wada ,  Makoto Nagasawa ,  Kunihiko Ishizaki

IPC分类号： A61F13/53 ,  A61L15/24 ,  A61L15/42 ,  A61L15/60 ,  A61F13/535 ,  A61F13/15

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。

公开(公告)号：US08952116B2

公开(公告)日：2015-02-10

申请号：US13498780

申请日：2010-09-29

申请人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

发明人： Taishi Kobayashi ,  Motohiro Imura ,  Taku Iwamura ,  Katsuyuki Wada ,  Kozo Nogi ,  Yoshiro Mitsukami ,  Masato Abe ,  Hiroko Ueda ,  Koji Honda

IPC分类号： C08F220/06 ,  C08K5/098 ,  C08L33/02 ,  B01J20/22 ,  B01J20/26 ,  B01J20/30 ,  A61L15/60 ,  C08J3/24

CPC分类号： A61L15/60 ,  A61L15/22 ,  B01J20/223 ,  B01J20/267 ,  B01J20/30 ,  B01J2220/44 ,  C08F220/06 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08K5/098 ,  C08L33/02

摘要： A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77≦AAP (4.83 kPa)+1.8×CRC≦100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.

摘要翻译： 本发明的颗粒状吸水剂是含有吸水性树脂作为主要成分的吸水剂，含有多价金属阳离子的颗粒状吸水剂，满足：（1）多价金属阳离子的含量为 0.001重量％和5重量％; （2）无压吸收率（CRC）不小于28（g / g），抗压吸收性（AAP 4.83kPa）不小于10（g / g）; （3）抗压吸收性和无压吸收性满足77＆nlE; AAP（4.83kPa）+ 1.8×CRC＆nlE; 100; 和（4）吸水剂的水分含量在5重量％至20重量％之间。 这提供了一种在吸湿后具有抗粘连性的吸水剂，对休克的稳定性优异，并且当在尿布中使用时抑制Re-Wet。

公开(公告)号：US08729191B2

公开(公告)日：2014-05-20

申请号：US11883621

申请日：2006-04-06

申请人： Takaaki Kawano ,  Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Katsuyuki Wada

发明人： Takaaki Kawano ,  Hirotama Fujimaru ,  Kunihiko Ishizaki ,  Katsuyuki Wada

IPC分类号： C08F6/02 ,  C08F8/44 ,  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，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。

公开(公告)号：US20130175473A1

公开(公告)日：2013-07-11

申请号：US13876728

申请日：2011-09-30

申请人： Katsuyuki Wada ,  Yasuhisa Nakashima

发明人： Katsuyuki Wada ,  Yasuhisa Nakashima

IPC分类号： B01J20/28

CPC分类号： B01J20/28011 ,  A61L15/60 ,  B01J20/223 ,  B01J20/267 ,  B01J20/3085 ,  C08F220/06 ,  C08J3/203 ,  C08J3/245 ,  C08J2333/02 ,  C08F2222/1013

摘要： Provided is a water-absorbing agent having enhanced performance in both the centrifuge retention capacity and the absorption against pressure (particularly, the vertical diffusion absorption amount) of a water-absorbing resin, and also, a water-absorbing agent which can provide an absorbent core having a large absorption amount in a diaper, having improved diffusibility and liquid permeability, and having a smaller re-wet amount, is provided at low cost.Disclosed is a particulate water-absorbing agent containing a surface-crosslinked polyacrylic acid (salt)-type water-absorbing resin as a main component, and containing at least one spacer selected from a polycation and water-insoluble fine particles, the particulate water-absorbing agent satisfying an free swell capacity (FSC) of 55 to 65 [g/g], an absorption against pressure (AAP—4.83 kPa) of 20 to 30 [g/g], and a vertical diffusion absorption amount under pressure (VDAUP—4.83 kPa) of 30 to 80 g.

摘要翻译： 本发明提供一种在吸水树脂的离心保留能力和耐压吸收（特别是垂直扩散吸收量）两方面具有增强性能的吸水剂，以及可提供吸收性能的吸水剂 以低成本提供具有改善的扩散性和液体渗透性并且具有较小再湿度的尿布中吸收量大的芯。 本发明提供一种含有表面交联聚丙烯酸（盐）型吸水性树脂作为主要成分并含有至少一种选自聚阳离子和水不溶性微粒的间隔物的颗粒状吸水剂， 满足55〜65 [g / g]的自由溶胀能力（FSC），20〜30 [g / g]的压力吸收（AAP-4.83kPa）和压力下的垂直扩散吸收量（VDAUP -4.83kPa）为30〜80g。

公开(公告)号：US08198209B2

公开(公告)日：2012-06-12

申请号：US12294328

申请日：2007-03-20

申请人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kazushi Torii ,  Hirofumi Shibata ,  Kazuki Kimura ,  Yasuhisa Nakashima ,  Motohiro Imura ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： B01J20/26 ,  B01J20/10 ,  B32B5/24

CPC分类号： A61L15/60 ,  A61L15/18 ,  B01J20/103 ,  B01J20/26 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/46 ,  B01J2220/68 ,  C08K3/36 ,  C08L101/14 ,  Y10T428/253

摘要： A water absorbing agent of the present invention has an internal crosslinking structure obtained by polymerization of a water-soluble unsaturated monomer. The agent satisfies conditions (a) to (d): (a) the agent contains water-insoluble inorganic particles at an amount of from 10 ppm to 1,900 ppm inclusive; (b) the agent contains 5 mass % or less particles which have such a size that they can pass through a sieve having a mesh opening size of 150 μm; (c) the agent has an absorbency against a pressure of 4.83 kPa (AAP) of 18 g/g or more; and (d) the water-insoluble inorganic particles reside on a surface of the water absorbing resin or near the surface.

摘要翻译： 本发明的吸水剂具有通过聚合水溶性不饱和单体获得的内部交联结构。 该试剂满足条件（a）至（d）：（a）该试剂含有10ppm至1,900ppm含量的水不溶性无机颗粒; （b）该试剂含有5质量％以下的粒径，使其能够通过网孔大小为150μm的筛子; （c）该试剂具有相对于4.83kPa（AAP）的压力为18g / g以上的吸收性; 和（d）水不溶性无机颗粒驻留在吸水树脂的表面上或表面附近。

公开(公告)号：US08182916B2

公开(公告)日：2012-05-22

申请号：US11816200

申请日：2006-02-10

申请人： Kazuki Kimura ,  Shin-ichi Fujino ,  Katsuyuki Wada ,  Kunihiko Ishizaki

发明人： Kazuki Kimura ,  Shin-ichi Fujino ,  Katsuyuki Wada ,  Kunihiko Ishizaki

IPC分类号： B32B5/16 ,  C08F2/10 ,  C08F8/34 ,  C08J3/24

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℃

公开(公告)号：US08026294B2

公开(公告)日：2011-09-27

申请号：US12681874

申请日：2008-10-10

申请人： Katsuyuki Wada ,  Yasuhisa Nakashima

发明人： Katsuyuki Wada ,  Yasuhisa Nakashima

IPC分类号： A61L9/013

CPC分类号： C08L33/02 ,  B01J20/261 ,  B01J2220/44 ,  B01J2220/46 ,  C08K5/09 ,  C08K5/1535 ,  C08L97/00 ,  C08L2666/26

摘要： An object is to provide a water absorbent resin composition containing a water absorbent resin as a main component, with excellent deodorant property and antimicrobial property without impairing appearance and absorption characteristics of the water absorbent resin. The water absorbent resin composition according to the first aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and an extract of bamboo and an extract of tea. The water absorbent resin composition according to the second aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and at least two kinds of compounds selected from a group consisting of hexanoic acid (salt), ethyl butyrate, and 3-methyl-2-cyclopenten-1-one. In addition, the method for producing the water absorbent resin composition according to the third aspect includes the step of adding an alcoholic solution of an extract of bamboo, before or after polymerization of an unsaturated monomer containing an acrylic acid (salt) as a main component.

摘要翻译： 本发明的目的是提供一种吸水性树脂作为主要成分的吸水性树脂组合物，具有优异的除臭性和抗菌性，而不损害吸水性树脂的外观和吸收特性。 根据第一方面的吸水性树脂组合物包括含有以聚丙烯酸（盐）为基础的吸水性树脂作为主要成分的吸水性树脂，以及竹子提取物和茶提取物。 根据第二方面的吸水性树脂组合物包括含有基于聚丙烯酸（盐）的吸水性树脂作为主要成分的吸水性树脂和至少两种选自己酸（盐） ，丁酸乙酯和3-甲基-2-环戊烯-1-酮。 此外，根据第三方面的吸水性树脂组合物的制造方法包括在含有丙烯酸（盐）作为主要成分的不饱和单体的聚合前后添加竹提取物的醇溶液的步骤 。

公开(公告)号：US20100240808A1

公开(公告)日：2010-09-23

申请号：US12681874

申请日：2008-10-10

申请人： Katsuyuki Wada ,  Yasuhisa Nakashima

发明人： Katsuyuki Wada ,  Yasuhisa Nakashima

IPC分类号： C08K11/00

CPC分类号： C08L33/02 ,  B01J20/261 ,  B01J2220/44 ,  B01J2220/46 ,  C08K5/09 ,  C08K5/1535 ,  C08L97/00 ,  C08L2666/26

摘要： An object is to provide a water absorbent resin composition containing a water absorbent resin as a main component, with excellent deodorant property and antimicrobial property without impairing appearance and absorption characteristics of the water absorbent resin. The water absorbent resin composition according to the first aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and an extract of bamboo and an extract of tea. The water absorbent resin composition according to the second aspect includes a water absorbent resin containing a polyacrylic acid (salt)-based water absorbent resin as a main component, and at least two kinds of compounds selected from a group consisting of hexanoic acid (salt), ethyl butyrate, and 3-methyl-2-cyclopenten-1-one. In addition, the method for producing the water absorbent resin composition according to the third aspect includes the step of adding an alcoholic solution of an extract of bamboo, before or after polymerization of an unsaturated monomer containing an acrylic acid (salt) as a main component.

摘要翻译： 本发明的目的是提供一种吸水性树脂作为主要成分的吸水性树脂组合物，具有优异的除臭性和抗菌性，而不损害吸水性树脂的外观和吸收特性。 根据第一方面的吸水性树脂组合物包括含有以聚丙烯酸（盐）为基础的吸水性树脂作为主要成分的吸水性树脂，以及竹子提取物和茶提取物。 根据第二方面的吸水性树脂组合物包括含有以聚丙烯酸（盐）为基础的吸水性树脂作为主要成分的吸水性树脂和至少两种选自己酸（盐） ，丁酸乙酯和3-甲基-2-环戊烯-1-酮。 此外，根据第三方面的吸水性树脂组合物的制造方法包括在含有丙烯酸（盐）作为主要成分的不饱和单体的聚合前后添加竹提取物的醇溶液的步骤 。

公开(公告)号：US07582705B2

公开(公告)日：2009-09-01

申请号：US12078802

申请日：2008-04-04

申请人： Yorimichi Dairoku ,  Yoshifumi Adachi ,  Kozo Nogi ,  Hiroki Inoue ,  Katsuyuki Wada ,  Yoshio Irie

发明人： Yorimichi Dairoku ,  Yoshifumi Adachi ,  Kozo Nogi ,  Hiroki Inoue ,  Katsuyuki Wada ,  Yoshio Irie

IPC分类号： C08F8/32

CPC分类号： C08J3/243 ,  A61L15/60 ,  B01J20/26 ,  B01J20/267 ,  B01J2220/68 ,  C08J2300/102

摘要： A particulate water absorbing agent of the present invention includes a water absorbent resin, having a cross-linking structure, whose surface has been cross-linked by adding a surface treatment agent, wherein: (i) a mass average particle diameter (D50) ranges from 200 to 600 μm and 95 to 100 wt % of a particulate water absorbing agent whose particle diameter ranges from less than 850 μm to not less than 150 μm is contained with respect to 100 wt % of whole the particulate water absorbing agent, and (ii) a logarithmic standard deviation (σζ) of particle size distribution ranges from 0.25 to 0.45, and (iii) a compressibility rate defined by a following equation ranges from 0 to 18%, and (iv) a surface tension of a supernatant liquid obtained in 4 minutes after dispersing 0.5 g of the particulate water absorbing agent in 50 ml of physiological saline whose temperature is 20° C. is 55 mN/m or more, the compressibility rate (%)=(P−A)/P ×100 where P represents a tapped bulk density of the particulate water absorbing agent and A represents a loose bulk density of the particulate water absorbing agent.

摘要翻译： 本发明的颗粒状吸水剂包括具有交联结构的吸水性树脂，其表面通过添加表面处理剂进行交联，其中：（i）质量平均粒径（D50）范围 相对于全部颗粒状吸水剂的100重量％，含有200〜600μm，95〜100wt％粒径范围在850μm〜150μm以下的颗粒状吸水剂，（ ii）粒度分布的对数标准偏差（sigmazeta）范围为0.25〜0.45，（iii）由下式表示的压缩率为0〜18％，（iv）得到的上清液的表面张力 在将0.5g颗粒状吸水剂分散在温度为20℃的50ml生理盐水中的4分钟内，在＆lt;＆lt;直线式说明书=“在线式”末端 =“铅”？>压缩性 y率（％）=（PA）/ P x100 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中P表示颗粒状吸水剂的抽头堆积密度，A表示 颗粒状吸水剂的松散堆积密度。

公开(公告)号：US07473470B2

公开(公告)日：2009-01-06

申请号：US10588530

申请日：2005-03-29

申请人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

发明人： Kunihiko Ishizaki ,  Takahiro Kitano ,  Yoshifumi Adachi ,  Hiroko Ueda ,  Katsuyuki Wada

IPC分类号： B32B5/16

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。