公开(公告)号：US06667372B1

公开(公告)日：2003-12-23

申请号：US09699491

申请日：2000-10-31

申请人： Koji Miyake ,  Takumi Hatsuda ,  Sachio Fujita ,  Takashi Nishigaki ,  Kunihiko Ishizaki ,  Katsuhiro Kajikawa

发明人： Koji Miyake ,  Takumi Hatsuda ,  Sachio Fujita ,  Takashi Nishigaki ,  Kunihiko Ishizaki ,  Katsuhiro Kajikawa

IPC分类号： C08F210

CPC分类号： C08F2/10 ,  Y10S526/93

摘要： A continuous manufacturing method of a water-absorbent polymer by continuously performing a polymerization of a hydrophilic monomer using a solution containing a hydrophilic monomer, includes at least one of the following steps (A) to (D): (A) introducing an inert gas into the solution in a continuous manner before subjecting the solution to a polymerization reaction, and subsequently removing the inert gas from the solution; (B) supplying the solution to a polymerization process, and washing out the solution with water supplied before, at, or after a timing of supplying the solution to the polymerization process; (C) detecting reaction temperatures of a polymerization reaction in non-contact manner at a plurality of points different distances away from a point where a solution is supplied; and (D) supplying water to a water-containing gel and/or transport means when transporting the water-containing gel of the water-absorbent polymer obtained in or after the polymerization reaction.

摘要翻译： 通过使用含有亲水性单体的溶液连续进行亲水性单体的聚合的吸水性聚合物的连续制造方法，包括以下工序（A）〜（D）：（A）中的至少一种，将惰性气体 在将溶液进行聚合反应之前，以连续的方式进入溶液中，随后从溶液中除去惰性气体;（B）将溶液供应到聚合过程中，并用在水， 在将溶液供应到聚合过程的时间之后;（C）以远离提供溶液的点不同距离的多个点以非接触的方式检测聚合反应的反应温度; 和（D）在输送聚合反应中或之后得到的吸水性聚合物的含水凝胶时，向含水凝胶和/或输送装置供水。

公开(公告)号：US09962680B2

公开(公告)日：2018-05-08

申请号：US13994871

申请日：2011-12-16

申请人： Satoshi Matsumoto ,  Kunihiko Ishizaki ,  Kanako Tsuru

发明人： Satoshi Matsumoto ,  Kunihiko Ishizaki ,  Kanako Tsuru

IPC分类号： B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  A61L15/60 ,  C08F220/06 ,  C08F222/10

CPC分类号： B01J20/261 ,  A61L15/60 ,  B01J20/28014 ,  B01J20/3092 ,  C08F220/06 ,  C08F222/1006 ,  C08L33/02

摘要： Provided is a method for producing a polyacrylic acid (salt)-based water absorbent resin, which is a convenient production method for a water absorbent resin for an absorbent suitable for practical use, the water absorbent resin having a reduced amount of residual monomers. Disclosed is a method for producing a polyacrylic acid (salt)-based water absorbent resin, the method comprising a polymerization step of polymerizing an aqueous monomer solution containing acrylic acid (salt) as a main component; a drying step of drying a water-containing gel-like crosslinked polymer obtained in the polymerization step; a surface crosslinking step of surface crosslinking the water absorbent resin under drying or the water absorbent resin which has been dried; and a packaging step of packaging the surface crosslinked water absorbent resin, wherein an iron content in the aqueous monomer solution in the polymerization step is 2 ppm (relative to the monomer(s)) or less, a moisture content of the water absorbent resin in the packaging step is 1% by weight or more, and the method further comprises, after the packaging step, a storage step of storing the packaged water absorbent resin for 3 days or longer.

公开(公告)号：US09272068B2

公开(公告)日：2016-03-01

申请号：US13634167

申请日：2011-03-14

申请人： Syuji Kanzaki ,  Sumio Okuda ,  Kunihiko Ishizaki ,  Satoshi Matsumoto

发明人： Syuji Kanzaki ,  Sumio Okuda ,  Kunihiko Ishizaki ,  Satoshi Matsumoto

IPC分类号： C08J3/12 ,  A61L15/56 ,  A61L15/60 ,  C08F6/00 ,  B01J20/26 ,  C08J3/24

CPC分类号： A61L15/56 ,  A61L15/60 ,  B01J20/261 ,  B01J20/267 ,  B01J2220/68 ,  C08F6/008 ,  C08J3/12 ,  C08J3/122 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02

摘要： The disclosed process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; and a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization. In the process, the drying step is interrupted with a dryer kept in a heated state and thereafter the drying step is restarted.

摘要翻译： 所公开的生产吸水性树脂的方法，包括：使含水不饱和单体聚合的聚合步骤; 以及干燥步骤，在聚合过程中或聚合后，在细碎的步骤中得到颗粒状的含水凝胶状交联聚合物。 在该过程中，干燥步骤被保持在加热状态的干燥器中断，然后重新开始干燥步骤。

公开(公告)号：US09044525B2

公开(公告)日：2015-06-02

申请号：US14129792

申请日：2012-06-29

申请人： Kazushi Torii ,  Reiko Nakatsuru ,  Yasuhisa Nakashima ,  Katsuyuki Wada ,  Kunihiko Ishizaki

发明人： Kazushi Torii ,  Reiko Nakatsuru ,  Yasuhisa Nakashima ,  Katsuyuki Wada ,  Kunihiko Ishizaki

IPC分类号： A61L15/26 ,  A61L15/60 ,  C08F20/06 ,  C08J3/24 ,  C08K5/00 ,  C08L33/02 ,  C08K5/17

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

公开(公告)号：US08802800B2

公开(公告)日：2014-08-12

申请号：US13392698

申请日：2010-08-30

申请人： Shinichi Fujino ,  Kozo Nogi ,  Kunihiko Ishizaki

发明人： Shinichi Fujino ,  Kozo Nogi ,  Kunihiko Ishizaki

IPC分类号： C08F2/00 ,  C08F20/06

CPC分类号： C08J3/12 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02

摘要： 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, the pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%, the solid content of the hydrogel supplied to the drying step is 35% by weight or more, and the area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.

摘要翻译： 一种吸水性树脂的制造方法，其特征在于，包括通过使单体水溶液进行聚合反应而得到水凝胶的聚合工序和干燥水凝胶的干燥工序，干燥工序中的干燥是使用连续通孔 流式带式干燥机，连续通流式带式干燥机中通流带的开孔率为20〜50％，供给干燥工序的水凝胶的固体成分为35重量％ 以上，相对于贯流带，水凝胶的面积占有率为85〜100％。

公开(公告)号：US08791210B2

公开(公告)日：2014-07-29

申请号：US13201701

申请日：2010-02-17

申请人： Shigeru Sakamoto ,  Yoshio Irie ,  Kozo Nogi ,  Kunihiko Ishizaki

发明人： Shigeru Sakamoto ,  Yoshio Irie ,  Kozo Nogi ,  Kunihiko Ishizaki

IPC分类号： C08C19/00 ,  C08F20/10 ,  C08F222/20 ,  C08F2/34 ,  C08F8/00

CPC分类号： C08C19/00 ,  C08F2/10 ,  C08F2/16 ,  C08F2/34 ,  C08F8/00 ,  C08F20/10 ,  C08F220/06 ,  C08F222/20

摘要： A method for producing a polyacrylic water-absorbent resin powder includes the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after polymerizing, fragmenting the resulting hydrated gel crosslinked polymer; and drying the fragmented hydrated gel crosslinked polymer, the gas being dissolved and/or dispersed in the monomer solution by (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; or (c) introducing the gas with the acrylic monomer solution via fine holes. The production method efficiently produces a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like.

摘要翻译： 聚丙烯酸吸水性树脂粉末的制造方法包括以下工序：制造溶解和/或分散有气体的丙烯酸类单体溶液; 在不存在表面活性剂的情况下或在不超过300ppm表面活性剂的存在下聚合单体溶液; 在聚合期间或之后，将所得水合凝胶交联聚合物破碎; 并且通过（a）向丙烯酸单体溶液和气体施加压力，干燥碎裂的水合凝胶交联聚合物，气体溶解和/或分散在单体溶液中; （b）产生丙烯酸单体溶液和气体的旋流; 或（c）通过细孔将丙烯酸单体溶液引入气体。 制造方法有效地制造吸水率优异的吸水性树脂，而不会降低卫生用品等的吸液性。

公开(公告)号：US20140058346A1

公开(公告)日：2014-02-27

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： 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。

公开(公告)号：US08513378B2

公开(公告)日：2013-08-20

申请号：US13496440

申请日：2010-09-16

申请人： Sayaka Machida ,  Kazushi Torii ,  Yoko Shirai ,  Hiroyuki Ikeuchi ,  Kunihiko Ishizaki

发明人： Sayaka Machida ,  Kazushi Torii ,  Yoko Shirai ,  Hiroyuki Ikeuchi ,  Kunihiko Ishizaki

IPC分类号： C08G64/00 ,  C08G63/02

CPC分类号： C08J3/28 ,  C08F220/06 ,  C08F222/1006 ,  C08J3/122 ,  C08J3/245 ,  C08J2300/00

摘要： The present invention provides a method for producing a water-absorbing resin powder. The method includes a polymerization step, a drying step, a pulverization step, a classification step, and a surface cross-linking step. It further includes an additional step, performed before the surface cross-linking step, in which at least part of the classified polymer is supplied again to the same or a different pulverization step. The circulation pulverization ratio in the pulverization step is higher than 1.50.

摘要翻译： 本发明提供一种吸水性树脂粉末的制造方法。 该方法包括聚合步骤，干燥步骤，粉碎步骤，分级步骤和表面交联步骤。 其还包括在表面交联步骤之前进行的另外的步骤，其中将至少部分分类的聚合物再次供应到相同或不同的粉碎步骤。 粉碎步骤中的循环粉碎比高于1.50。

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。

公开(公告)号：US20130123435A1

公开(公告)日：2013-05-16

申请号：US13635045

申请日：2011-03-17

申请人： Sumio Okuda ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Shinichi Fujino ,  Kozo Nogi

发明人： Sumio Okuda ,  Syuji Kanzaki ,  Kunihiko Ishizaki ,  Shinichi Fujino ,  Kozo Nogi

IPC分类号： C08J3/24

CPC分类号： C08F120/06 ,  B07B1/28 ,  B07B1/54 ,  B07B1/56 ,  B07B13/16 ,  C08F6/008 ,  C08F220/06 ,  C08J3/24 ,  C08J3/245 ,  C08J2300/14 ,  G01N15/0272 ,  G01N2015/0277 ,  G01N2015/0288

摘要： Provided is a method which does not require alteration of the raw materials or high capital investment, and improves and stabilizes the physical property (for example, liquid permeability) of a water absorbent resin by means of a simple technique. A method for producing a water absorbent resin is disclosed, which method includes a polymerization step of polymerizing an aqueous solution of acrylic acid (salt) to obtain a water-containing gel-like crosslinked polymer; a drying step of drying the water-containing gel-like crosslinked polymer to obtain a water absorbent resin powder; a classification step of classifying the water absorbent resin powder; and a surface crosslinking step of surface crosslinking the water absorbent resin powder, wherein in the classification steps that are carried before the surface crosslinking step and/or after the surface crosslinking step, the stretch tension (tension) of the metal sieve mesh used in the classification step is from 35 [N/cm] to 100 [N/cm].

摘要翻译： 提供了不需要改变原材料或高资本投资的方法，并且通过简单的技术提高和稳定吸水性树脂的物理性能（例如，透液性）。 公开了一种吸水性树脂的制造方法，该方法包括聚合丙烯酸（盐）水溶液以获得含水凝胶状交联聚合物的聚合步骤; 干燥步骤，干燥含水凝胶状交联聚合物以获得吸水性树脂粉末; 吸水性树脂粉末的分类步骤; 和表面交联吸水性树脂粉末的表面交联步骤，其中在表面交联步骤之前和/或表面交联步骤之后承载的分级步骤中，所用的金属筛网的拉伸张力（张力） 分级步骤为35 [N / cm]至100 [N / cm]。