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    POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME
    1.
    发明申请
    POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME 审中-公开
    聚丙烯酸（盐），聚丙烯酸（盐） - 水吸收树脂及其生产方法

    公开(公告)号：US20130043384A1

    公开(公告)日：2013-02-21

    申请号：US13643506

    申请日：2011-04-26

    申请人： Satoshi Matsumoto ,  Yuki Miura ,  Kunihiko Ishizaki ,  Yoshifumi Adachi

    发明人： Satoshi Matsumoto ,  Yuki Miura ,  Kunihiko Ishizaki ,  Yoshifumi Adachi

    IPC分类号： C08L33/02 ,  B01J20/30 ,  H01J49/26 ,  B01J20/26

    CPC分类号： C08F220/06 ,  B01J20/261 ,  B01J20/3085

    摘要： A polyacrylic acid (salt), or a polyacrylic acid (salt)-based water-absorbing resin, contains a tracer for detecting various troubles in the water-absorbing resin during the period from the production of the water-absorbing resin to the use and discard thereof by a consumer. The polyacrylic acid (salt)-based water-absorbing resin has a stable carbon isotope ratio, as determined by accelerator mass spectrometry, of less than −20% and a radioactive carbon content of 1.0×10−14 or mole. The polyacrylic acid (salt)-based water-absorbing resin has: a CRC of 10 [g/g] or mole; an AAP of 20 [g/g] or mole; an Ext of 35 wt. % or less; a content of residual monomers of 1,000 ppm or less; a PSD in which the proportion of particles having a particle diameter of 150 μm or larger but less than 850 μm is 90 wt. % or more; and an FSR of 0.15 [g/g/s] or more.

    摘要翻译： 聚丙烯酸（盐）或基于聚丙烯酸（盐）的吸水性树脂含有用于检测从吸水性树脂的制造到使用时的吸水性树脂的各种问题的示踪剂， 由消费者丢弃。 基于聚丙烯酸（盐）的吸水树脂通过促进剂质谱测定，其碳同位素比率低于-20％，放射性碳含量为1.0×10-14或摩尔。 基于聚丙烯酸（盐）的吸水性树脂具有10μg/ g或更低的CRC; 20克/克或摩尔的AAP; 外加35重量％ ％ 或更少; 残留单体的含量为1000ppm以下; 其中粒径为150μm以上但小于850μm的粒子的比例为90重量％的PSD ％ 或者更多; 并且FSR为0.15 [g / g / s]以上。

    POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME
    2.
    发明申请
    POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME 审中-公开
    聚丙烯酸（盐），聚丙烯酸（盐） - 水吸收树脂及其生产方法

    公开(公告)号：US20130037708A1

    公开(公告)日：2013-02-14

    申请号：US13643498

    申请日：2011-04-26

    申请人： Satoshi Matsumoto ,  Yuki Miura ,  Kunihiko Ishizaki ,  Shigeru Sakamoto

    发明人： Satoshi Matsumoto ,  Yuki Miura ,  Kunihiko Ishizaki ,  Shigeru Sakamoto

    IPC分类号： C08L33/02 ,  H01J49/26

    CPC分类号： C08F220/06 ,  B01J20/261 ,  B01J20/3085

    摘要： Disclosed are a polyacrylate (salt) and a polyacrylate (salt) water-absorbent resin containing a tracer which can be verified back to the manufacturing process of the water-absorbent resin when dealing with various problems with the water-absorbent resin which can occur from the manufacturing process of the water-resistant resin, during the use thereof by a consumer, up until the disposal thereof. The disclosed polyacrylate (salt) and the polyacrylate (salt) water-absorbent resin have a carbon stable isotope ratio (δ13C) of at least −20% when measured by accelerator mass spectrometry.

    摘要翻译： 公开了含有示踪剂的聚丙烯酸酯（盐）和聚丙烯酸酯（盐）吸水性树脂，当遇到吸水性树脂的各种问题时，该吸水性树脂可以回溯到吸水性树脂的制造过程， 防水树脂在消费者使用期间的制造过程直至其处理。 当通过加速器质谱法测量时，所公开的聚丙烯酸酯（盐）和聚丙烯酸酯（盐）吸水性树脂具有至少-20％的碳稳定同位素比（δ13C）。

    Particulate water absorbing agent with irregularly pulverized shape
    3.
    发明申请
    Particulate water absorbing agent with irregularly pulverized shape 有权
    颗粒状吸水剂不规则粉碎形状

    公开(公告)号：US20070141338A1

    公开(公告)日：2007-06-21

    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： B32B1/00 ,  B01J20/00 ,  B01J20/22 ,  B01J20/26 ,  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。

    Particulate water absorbing agent with irregularly pulverized shape
    4.
    发明授权
    Particulate water absorbing agent with irregularly pulverized shape 有权
    颗粒状吸水剂不规则粉碎形状

    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。

    Polyacrylic acid (salt)-based water absorbent resin, and method for production thereof
    7.
    发明授权
    Polyacrylic acid (salt)-based water absorbent resin, and method for production thereof 有权

    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.

    PROCESS FOR PRODUCING WATER-ABSORBING RESIN
    10.
    发明申请
    PROCESS FOR PRODUCING WATER-ABSORBING RESIN 有权
    生产吸水树脂的方法

    公开(公告)号：US20130005904A1

    公开(公告)日：2013-01-03

    申请号：US13634151

    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： C08F20/06

    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; 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; a pulverizing step after the drying, a classification step after the drying, and a surface treatment step after the classification. In the process is, the surface-treatment step is interrupted with a heating treatment apparatus kept in a heated state and thereafter the surface treatment 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; 干燥步骤，在聚合过程中或在聚合后，在细粉碎步骤中得到颗粒状含水凝胶状交联聚合物; 干燥后的粉碎工序，干燥后的分级工序，分级后的表面处理工序。 在该过程中，表面处理步骤被保持在加热状态的加热处理装置中断，然后重新开始表面处理步骤。