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1.发明申请METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBING AGENT, AND WATER ABSORBING AGENT 审中-公开生产聚丙烯酸（盐） - 水吸收剂和吸水剂的方法公开(公告)号：US20170044332A1
公开(公告)日：2017-02-16
申请号：US15297322
申请日：2016-10-19
CPC分类号： C08J3/245 , A61L15/24 , A61L15/60 , B01J20/267 , C08F220/06 , C08J2333/02 , C08L33/02 , C08L2203/02 , C08F2222/108
摘要： The present invention relates to an absorbent suitable for use in a thin sanitary material/absorbent article having a high absorbent content and not prone to gel blocking, the absorbent having excellent liquid diffusibility (e.g. SFC) and minimal decrease in absorption ratio under pressure (e.g., AAP or PUP) even when a liquid permeation enhancer is added, and to a method for manufacturing the high-performance absorbent stably during actual production. The method is a method for manufacturing a polyacrylic acid (salt)-based absorbent, having a surface-crosslinking agent addition step for adding a solution of a surface-crosslinking agent, and a liquid permeation enhancer addition step for adding a liquid permeation enhancer, the liquid permeation enhancer addition step being performed after and/or at the same time as the surface-crosslinking agent addition step, the method characterized in that a surface crosslinking step for performing heat treatment in an atmosphere having a dew point of 45° C. to 100° C. is performed after or at the same time as the surface-crosslinking agent addition step.
摘要翻译： 本发明涉及适合用于具有高吸收量并且不容易凝胶堵塞的薄卫生材料/吸收制品的吸收剂，该吸收剂具有优异的液体扩散性（例如SFC）和在压力下的最小吸收比例降低（例如 ，AAP或PUP），以及在实际制造中稳定地制造高性能吸收剂的方法。 该方法是制造基于聚丙烯酸（盐）的吸收剂的方法，其具有用于添加表面交联剂溶液的表面交联剂添加步骤和用于添加液体渗透增强剂的液体渗透增强剂添加步骤， 所述液体渗透增强剂添加步骤在与所述表面交联剂添加步骤之后和/或同时进行，所述方法的特征在于，在露点为45℃的气氛中进行热处理的表面交联步骤。 在表面交联剂添加步骤之后或与表面交联剂添加步骤同时进行。
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公开(公告)号：US20230050209A1
公开(公告)日：2023-02-16
申请号：US17790195
申请日：2020-12-22
发明人： Daisuke TAKEDA , Reiko NAKATSURU , Keisuke KIKUCHI , Tomoya ARAI , Kenji TADA , Nobuya TANAKA , Kazuki KIMURA
摘要： Provided is an absorbent body that, for example, in a case where the absorbent body has been used in an absorbent article, such as a thin disposable diaper, having an absorbent body with a low proportion of fiber material (hydrophilic fibers) such as pulp, enables the absorbent article such as a disposable diaper to have an improved liquid trapping function on second and subsequent urinations over the conventional ones and particularly to have an increased amount of liquid trapped under load on the second and subsequent urinations over the conventional ones. Also provided is a water-absorbing resin that is used in the absorbent body and has an increased absorption capacity under load on the second and subsequent urinations over the conventional ones.
The absorbent body includes a water-absorbing resin having a gel expansion force under a load of 4.83 kPa of 26 N or more.-
3.发明申请METHOD FOR FILLING PARTICULATE WATER ABSORBING AGENT AND METHOD FOR SAMPLING FILLED PARTICULATE WATER ABSORBING AGENT 审中-公开填充颗粒吸水剂的方法和采样填充颗粒吸水剂的方法公开(公告)号：US20160236803A1
公开(公告)日：2016-08-18
申请号：US15024733
申请日：2014-09-30
发明人： Kazushi TORII , Shigeru SAKAMOTO , Kenji TADA , Kazuki KIMURA , Yusuke WATANABE
摘要： An object of the invention is to provide a technique in which a decrease in physical properties is suppressed or consumer complaints are diminished.A method for filling a particulate water absorbing agent includes a filling step of filling a particulate water absorbing agent into a filling container and a vibrating step of vibrating the filling container at the outside of the filling container, the vibrating step being conducted at least one time between the start and the end of the filling step, in which a vibration condition in the vibrating step satisfies the following conditions (a) and (b):(a) vibration by a vibrating body in contact with the filling container has a vertical directional component and a vibrational angle is within 90°±30°; and(b) total amplitude at no load and a vibration frequency at no load of the vibrating body are set so as to satisfy Equation 1-1 and Equation 2 or Equation 1-2 and Equation 2.
摘要翻译： 本发明的目的是提供一种抑制物理性能降低或消费者投诉减少的技术。 一种填充颗粒状吸水剂的方法，包括将填充容器内的填充容器充填到填充容器内的填充工序，以及在充填容器的外部使填充容器振动的振动工序，振动工序至少进行1次 在填充步骤的开始和结束之间，其中振动步骤中的振动条件满足以下条件（a）和（b）：（a）与填充容器接触的振动体的振动具有垂直方向 振动角在90°±30°之内; 和（b）无负载时的总振幅和振动体的无负载时的振动频率被设定为满足式1-1和式2或式1-2和式2。
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4.发明申请公开(公告)号：US20190125921A1
公开(公告)日：2019-05-02
申请号：US16088638
申请日：2017-03-28
发明人： Kazuki KIMURA , Nobuya TANAKA , Yuki TANAKA , Daisuke TAKEDA
IPC分类号： A61L15/24 , C08F20/06 , C08J3/12 , C08J3/24 , B01J20/26 , B01J20/02 , B01J20/28 , B01J20/30 , A61L15/60
摘要： Provided is a water-absorbing agent having an excellent ability to absorb and retain liquid and an excellent liquid suction power. The water-absorbing agent contains a polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e): (a) a weight average particle diameter (D50) is 300 μm or more and less than 400 μm; (b) a proportion of particles with a particle diameter of 600 μm or more and less than 850 μm is less than 10 weight %; (c) an average gap radius is 100 μm or more and less than 180 μm; (d) a CRC is 28 g/g or more and less than 34 g/g; and (e) an AAP is 24 g/g or more.
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5.发明申请公开(公告)号：US20180001300A1
公开(公告)日：2018-01-04
申请号：US15541845
申请日：2015-12-28
发明人： Reiko NAKATSURU , Kazuki KIMURA
CPC分类号： B01J20/267 , A61F13/49 , A61F13/53 , A61L15/24 , A61L15/60 , B01J20/26 , B01J20/28 , B01J20/28004 , B01J20/30 , B01J20/3021 , B01J20/3085 , G01N5/025
摘要： Provided is a water-absorbing agent which maintains a certain degree of liquid permeability and water absorption speed while also reducing re-wet in a disposable diaper, without the use of costly raw materials or costly apparatuses. The water-absorbing agent of the present invention contains a polyacrylic acid salt-based water-absorbing resin as a main component and has physical properties falling within a specific range, the physical properties being saline flow conductivity (SFC), gap fluid retention property under pressure, and a proportion of particles having a particle diameter of not less than 150 μm and less than 710 μm.
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公开(公告)号：US20230147797A1
公开(公告)日：2023-05-11
申请号：US17798769
申请日：2021-02-12
发明人： Kazuki KIMURA , Nobuhiro KOBAYASHI
CPC分类号： B01J20/3425 , B01J20/261 , B01J20/3475 , B01J20/3491 , C08J11/08 , B09B3/35 , B09B3/80 , C08J2333/02 , B09B2101/95
摘要： Provided is a method for recycling a water-absorbing resin which contains absorbed liquid, with consideration for a resource aspect and an energy aspect. The method for recycling a water-absorbing resin which contains absorbed liquid includes: discharging the absorbed liquid from the water-absorbing resin which contains the absorbed liquid; and recovering a water-absorbing power of the water-absorbing resin.
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公开(公告)号：US20230102961A1
公开(公告)日：2023-03-30
申请号：US17798757
申请日：2021-02-12
发明人： Kimiaki NISHIMURA , Nobuya TANAKA , Tomoya ARAI , Kazuki KIMURA , Kazushi HORIE , Kenji TADA
摘要： It is an object to provide a water-absorbing resin that while maintaining water-absorbing resin physical properties such as water absorption performance, has a sufficiently reduced odor produced during swelling. The object is attained by causing the water-absorbing resin to be a water-absorbing resin which is a surface-crosslinked water-absorbing resin, the water-absorbing resin having a volatile component concentration of 3.5 ppm or less as measured when the water-absorbing resin is caused to stand still for 15 minutes under a condition that the water-absorbing resin has a swelling capacity of 1.0-fold.
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8.发明申请公开(公告)号：US20220111352A1
公开(公告)日：2022-04-14
申请号：US17421947
申请日：2020-01-10
发明人： Kazuki KIMURA , Daisuke TAKEDA
摘要： The present invention provides a water absorbent agent that achieves both improvement in the water absorption time thereof and reduction in the residual monomer variation rate thereof. A present inventive method for producing a water absorbent agent having a water-absorbent resin as a main component, the method including a surface-crosslinking step for a water-absorbent resin and a mixing step for a sulfur-containing reducing agent aqueous solution, the method satisfies (1) a specific surface area of the water-absorbent resin, (2) an average droplet diameter of the sulfur-containing reducing agent aqueous solution, and a temperature of the aqueous solution, (3) stirring-mixing conditions, and (4) a heating and drying step conditions.
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9.发明申请公开(公告)号：US20200031503A1
公开(公告)日：2020-01-30
申请号：US16592353
申请日：2019-10-03
发明人： Kazushi TORII , Shigeru SAKAMOTO , Kenji TADA , Kazuki KIMURA , Yusuke WATANABE
摘要： An object of the invention is to provide a technique in which a decrease in physical properties is suppressed or consumer complaints are diminished.A method for filling a particulate water absorbing agent includes a filling step of filling a particulate water absorbing agent into a filling container and a vibrating step of vibrating the filling container at the outside of the filling container, the vibrating step being conducted at least one time between the start and the end of the filling step, in which a vibration condition in the vibrating step satisfies the following conditions (a) and (b): (a) vibration by a vibrating body in contact with the filling container has a vertical directional component and a vibrational angle is within 90°±30°; and (b) total amplitude at no load and a vibration frequency at no load of the vibrating body are set so as to satisfy Equation 1-1 and Equation 2 or Equation 1-2 and Equation 2.
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公开(公告)号：US20230076935A1
公开(公告)日：2023-03-09
申请号：US17797495
申请日：2021-02-12
发明人： Kazuki KIMURA , Reiko NAKATSURU , Daisuke TAKEDA , Yudai FUJII
摘要： Provided are: a water-absorbing agent achieving, in a balanced manner, both good physical properties and a decrease in speed of coloration with lapse of time even if the water-absorbing agent has a high moisture absorbing speed due to having a large specific surface area; and an absorbent body having a low ratio of pulp and achieving, in a balanced manner, both good physical properties suitable for a thin disposable diaper and a decrease in speed of coloration with lapse of time. The absorbent body contains a hydrophilic base material and a water-absorbing agent which contains: surface-crosslinked water-absorbing resin particles having a non-uniformly pulverized shape; α-hydroxycarboxylic acid (salt); and an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent, a point plotted along an x-axis that represents an amount (x1 mol %) of α-hydroxycarboxylic acid (salt) extracted from the water-absorbing agent and along a y-axis that represents an amount (y1 mmol %) of an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent extracted from the water-absorbing agent being within a range that satisfies a specific relational formula of x1 and y1, the water-absorbing agent having a moisture absorbing speed of 120 mg/g/hr or more at a temperature of 40±1° C. at a relative humidity of 75±1% RH.
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