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1. 发明授权

US06444744B1 Hydrophilic resin, absorbent article, and acrylic acid for polymerization 有权
标题翻译：亲水性树脂，吸收性物品和丙烯酸进行聚合
公开(公告)号：US06444744B1
公开(公告)日：2002-09-03
申请号：US09258503
申请日：1999-02-27
申请人： Hirotama Fujimaru , Kunihiko Ishizaki , Nobuyuki Harada , Sei Nakahara
发明人： Hirotama Fujimaru , Kunihiko Ishizaki , Nobuyuki Harada , Sei Nakahara
IPC分类号： C08F2006
CPC分类号： C08F20/06 , A61L15/24 , A61L15/60 , C08L33/02
摘要： The invention provides a hydrophilic resin and an absorbent article, both of which display still less coloring and discoloring when preserved for a long time. The hydrophilic resin is any one of: 1) a hydrophilic resin, obtained by a process including the step of polymerizing a monomer component including a major proportion of either one or both of acrylic acid and its salt which merely have a content of at most 0.20 ppm in total of hydroquinone and benzoquinone; 2) a hydrophilic resin, comprising a major proportion of an acrylic polymer and a minor proportion of either one or both of hydroquinone and benzoquinone, with the hydrophilic resin further comprising a quinhydronation inhibitor of 10˜1,000,000 times the total weight of hydroquinone and benzoquinone; 3) a hydrophilic resin, comprising a major proportion of an acrylic polymer and merely having a coloring degree (YI) of at most 20 after being left under conditions of the open system, 70° C., 65% RH for 1 week; and 4) a hydrophilic resin, which is a water-absorbent resin and is surface-crosslinked or surface-impregnated with a polyhydric alcohol and displays pH of 5.5 or less in a physiological salt solution and has an absorption capacity of 20 g/g or more for a physiological salt solution under a load of 50 g/cm2. In addition, the absorbent article comprises the above hydrophilic resin.
摘要翻译：本发明提供一种亲水性树脂和吸收性物品，两者在长期保存时都显示出较少的着色和变色。亲水性树脂是以下中的任何一种：1）亲水性树脂，其通过包括以下步骤的方法获得，所述方法包括使仅含有至多0.20的含量的丙烯酸及其盐中的一种或两种以上的主要部分对苯二酚和苯醌总共ppm; 2）亲水性树脂，其中主要部分为丙烯酸类聚合物和少量氢醌和苯醌中的一种或两种，亲水性树脂还含有氢醌和苯醌总重量的10〜1,000,000倍的醌氢醌抑制剂; 3）亲水性树脂，其包含主要部分的丙烯酸类聚合物，并且仅在开放系统的条件下，70℃，65％RH下仅具有至多20的着色度（YI）1周; 和4）作为吸水性树脂的表面交联或表面浸渍多元醇的亲水性树脂，在生理盐溶液中显示出pH5.5以下的吸收能力，吸收容量为20g / g，更多的是在50g / cm 2的负荷下的生理盐溶液。另外，吸收性物品包含上述亲水性树脂。

2. 发明授权

US07049366B2 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
标题翻译：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
申请人： Sei Nakahara , Kunihiko Ishizaki , Hirotama Fujimaru , Yasuhisa Nakashima , Kazuhiko Sakamoto
发明人： Sei Nakahara , Kunihiko Ishizaki , Hirotama Fujimaru , Yasuhisa Nakashima , Kazuhiko Sakamoto
IPC分类号： C08F120/06
CPC分类号： C08F20/06 , A61L15/60 , C08L33/02
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。

3. 发明申请

US20080119626A1 Polyacrylic Acid (Salt) Water-Absorbent Resin, Production Process Thereof, and Acrylic Acid Used in Polymerization for Production of Water-Absorbent Resin 有权
标题翻译：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
申请人： Hirotama Fujimaru , Kunihiko Ishizaki , Sei Nakahara
发明人： Hirotama Fujimaru , Kunihiko Ishizaki , Sei Nakahara
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。

4. 发明授权

US09062140B2 Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin 有权
标题翻译：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
申请人： Hirotama Fujimaru , Kunihiko Ishizaki , Sei Nakahara
发明人： Hirotama Fujimaru , Kunihiko Ishizaki , Sei Nakahara
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。

5. 发明授权

US08765857B2 Particulate water retaining material for cultivating plant having water absorbent resin as main component 有权
标题翻译：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
申请人： Hirotama Fujimaru , Yorimichi Dairoku , Kunihiko Ishizaki , Yoshifumi Adachi , Nobuyuki Harada
发明人： Hirotama Fujimaru , Yorimichi Dairoku , Kunihiko Ishizaki , Yoshifumi Adachi , Nobuyuki Harada
IPC分类号： C08K3/26 , C08K3/22 , C08F220/06 , A01G7/00
CPC分类号： A01G24/00 , A01G24/35
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。

6. 发明申请

US20070101644A1 Particulate water retaining material for cultivating plant having water absorbent resin as main component 有权
标题翻译：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
申请人： Hirotama Fujimaru , Yorimichi Dairoku , Kunihiko Ishizaki , Yoshifumi Adachi , Nobuyuki Harada
发明人： Hirotama Fujimaru , Yorimichi Dairoku , Kunihiko Ishizaki , Yoshifumi Adachi , Nobuyuki Harada
IPC分类号： A01G7/00
CPC分类号： A01G24/00 , A01G24/35
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。

7. 发明授权

US06187872B1 Water-absorbent agent and method for manufacturing the same 失效
标题翻译：吸水剂及其制造方法
公开(公告)号：US06187872B1
公开(公告)日：2001-02-13
申请号：US09051313
申请日：1998-04-06
申请人： Toru Yanase , Kazuki Kimura , Shin-ichi Fujino , Kinya Nagasuna , Kunihiko Ishizaki , Hirotama Fujimaru , Nobuyuki Harada
发明人： Toru Yanase , Kazuki Kimura , Shin-ichi Fujino , Kinya Nagasuna , Kunihiko Ishizaki , Hirotama Fujimaru , Nobuyuki Harada
IPC分类号： C08F812
CPC分类号： A61L15/60 , B01J20/26 , C08F8/00 , C08F8/44 , C08F2800/20 , C08F2810/20 , C08F220/06
摘要： A hydrogel polymer obtained by polymerizing a monomer component including acrylic acid (salt) is post-neutralized so that each of polymer particles derived from a polymer produced by neutralizing the hydrogel polymer has an allowable neutralization ratio. The polymer as obtained by neutralizing the hydrogel polymer is reacted with a crosslinking agent reactive to a functional group of the polymer. The allowable neutralization ratio, for example, is a neutralization ratio which is not lower, by not less than 20 mole percent, or more than, at least 55 mole percent, than an average neutralization ratio of a mass of the polymer particles, and the post-neutralization is carried out so that a number of polymer particles having a non-allowable neutralization ratio outside the allowable neutralization range is not more than 10 in 200 polymer particles, thus obtaining a water-absorbent agent having high absorbency under no applied pressure and high pressure wherein the amount of water soluble component is lower compared with the conventional water-absorbent agent and a change in pH of a swollen gel is small.
摘要翻译：通过使包含丙烯酸（盐）的单体组分聚合而获得的水凝胶聚合物被后中和，使得通过中和水凝胶聚合物产生的聚合物衍生的各聚合物颗粒具有允许的中和比。通过中和水凝胶聚合物获得的聚合物与与聚合物的官能团反应的交联剂反应。例如，容许的中和比例是中和比，其比不到聚合物颗粒的质量的平均中和比不低于20摩尔％，或至多55摩尔％，而且进行中和后，使得在200个聚合物粒子中，许多中和比例不超过允许中和比例的聚合物颗粒数不超过10个，从而获得在无施加压力下具有高吸收性的吸水剂，其中水溶性成分的量与常规吸水剂相比较低，并且溶胀凝胶的pH变化很小。

8. 发明授权

US06184433B2 Pressure-resistant absorbent resin, disposable diaper using the resin, and absorbent resin, and method for production thereof 失效
标题翻译：耐压吸收性树脂，使用树脂的一次性尿布和吸收性树脂，及其制造方法
公开(公告)号：US06184433B2
公开(公告)日：2001-02-06
申请号：US09058023
申请日：1998-04-10
申请人： Nobuyuki Harada , Kunihiko Ishizaki , Hirotama Fujimaru , Toshimasa Kitayama
发明人： Nobuyuki Harada , Kunihiko Ishizaki , Hirotama Fujimaru , Toshimasa Kitayama
IPC分类号： A61F1315
CPC分类号： A61L15/60
摘要： This invention is directed to a disposable diaper using a pressure-resistant absorbent resin manifesting a ratio of water absorption capacity under pressure of 30 g/g or more to artificial urine under a load of 50 g/cm2, and a pressure-resistant absorption ratio of 0.6 or more, wherein the pressure resistant absorption ratio is defined as the ratio of the ratio of water absorption capacity under high pressure to artificial urine under a load of 100 g/cm2 to a ratio of water absorption capacity under pressure to artificial urine under a load of 50 g/cm2.
摘要翻译：本发明涉及一种使用耐压吸收树脂的一次性尿布，其表现出在50g / cm 2负荷下人造尿液在30g / g以上的压力下的吸水倍率与耐压吸收率为0.6以上，其中耐压吸收率定义为在负荷为100g / cm 2的情况下，高压下的人造尿与人造尿之间的吸水能力与人造尿下的吸水能力的比例负荷为50g / cm 2。

9. 发明授权

US08481664B2 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
标题翻译：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
申请人： Yorimichi Dairoku , Hirotama Fujimaru , Kunihiko Ishizaki
发明人： Yorimichi Dairoku , Hirotama Fujimaru , Kunihiko Ishizaki
IPC分类号： C08F20/06 , A61F13/15 , A61F13/20
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。

10. 发明申请

US20080161512A1 Production Process of Polyacrylic Acid (Salt) Water-Absorbent Resin 有权
标题翻译：聚丙烯酸（盐）吸水树脂的生产工艺
公开(公告)号：US20080161512A1
公开(公告)日：2008-07-03
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： 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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