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    METHOD OF PRODUCING ABSORBENT RESIN
    4.
    发明公开
    METHOD OF PRODUCING ABSORBENT RESIN 审中-公开
    生产吸收性树脂的方法

    公开(公告)号：EP2548911A1

    公开(公告)日：2013-01-23

    申请号：EP11756405.4

    申请日：2011-03-17

    申请人： Nippon Shokubai Co., Ltd.

    发明人： OKUDA, Sumio ,  KANZAKI, Syuji ,  ISHIZAKI, Kunihiko ,  FUJINO, Shinichi ,  NOGI, Kozo

    IPC分类号： C08J3/12 ,  B01J20/26 ,  C08F20/06

    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： 本发明提供不需要原料改变或高投资的方法，通过简单的技术提高并稳定吸水性树脂的物性（例如液体透过性）的方法。 公开了一种生产吸水树脂的方法，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; 干燥所述含水凝胶状交联聚合物以获得吸水树脂粉末的干燥步骤; 将吸水性树脂粉末分级的分级步骤; 以及将所述吸水性树脂粉末进行表面交联的表面交联工序，其中，在所述表面交联工序前和/或所述表面交联工序后进行的分级工序中，所述金属筛网的拉伸张力（张力） 分级步骤为35 [N / cm]至100 [N / cm]。

    METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN
    8.
    发明公开
    METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN 审中-公开
    制造吸水树脂的方法

    公开(公告)号：EP2546284A1

    公开(公告)日：2013-01-16

    申请号：EP11753510.4

    申请日：2011-03-14

    申请人： Nippon Shokubai Co., Ltd.

    发明人： KANZAKI, Syuji ,  OKUDA, Sumio ,  ISHIZAKI, Kunihiko ,  MATSUMOTO, Satoshi

    IPC分类号： C08J3/12 ,  B01J20/26 ,  C08F6/00

    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 method for manufacturing a water-absorbing resin includes: a polymerization step in which an unsaturated monomer in an aqueous solution is polymerized; a drying step in which a water-containing cross-linked granular polymer gel, obtained in a microgranulation step during or after polymerization, is dried; a post-drying pulverization step; a post-drying sorting step; and a surface-treatment step, after the sorting step, in which a waster-absorbing resin powder is subjected to a surface treatment. Said method is characterized in that the surface-treatment step is halted, with a heat-treatment machine kept hot, and then subsequently restarted.

    摘要翻译： 所公开的用于制造吸水树脂的方法包括：使水溶液中的不饱和单体聚合的聚合步骤; 干燥步骤，其中将在聚合期间或聚合后的微粒化步骤中获得的含水交联粒状聚合物凝胶干燥; 干燥后粉碎步骤; 干燥后分拣步骤; 和分选步骤之后的表面处理步骤，其中对吸收了废水的树脂粉末进行表面处理。 所述方法的特征在于表面处理步骤停止，热处理机器保持热，然后重新启动。

    METHOD OF PRODUCING ABSORBENT RESIN
    9.
    发明公开
    METHOD OF PRODUCING ABSORBENT RESIN 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINES WASSERABSORBIERENDEN HARZES

    公开(公告)号：EP2548910A1

    公开(公告)日：2013-01-23

    申请号：EP11756400.5

    申请日：2011-03-17

    申请人： Nippon Shokubai Co., Ltd.

    发明人： OKUDA, Sumio ,  KANZAKI, Syuji ,  ISHIZAKI, Kunihiko ,  FUJINO, Shinichi ,  NOGI, Kozo

    IPC分类号： C08J3/12 ,  B01J20/26 ,  C08F20/06

    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： A method of enhancing and stabilizing the physical property (for example, liquid permeability) of a water absorbent resin by means of a simple technique without requiring any alteration of the raw materials or high capital investment, is provided.
    Disclosed is a method for producing a water absorbent resin, which 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 step that is carried out before the surface crosslinking step and/or after the surface crosslinking step, a tapping material is installed below the metal sieve mesh used in the classification step, and thereby classification is carried out.

    摘要翻译： 提供了一种通过简单的技术来提高和稳定吸水性树脂的物理性能（例如液体渗透性）的方法，而不需要改变原料或高资本投资。 公开了一种吸水性树脂的制造方法，其包括聚合丙烯酸（盐）水溶液以获得含水凝胶状交联聚合物的聚合步骤; 干燥含水凝胶状交联聚合物的干燥工序，得到吸水性树脂粉末; 对吸水性树脂粉末进行分类的分级步骤; 以及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进行的分级步骤中，将攻丝材料安装在用于 分类步骤，从而进行分类。

    PROCESS FOR PRODUCING WATER-ABSORBING RESIN POWDER
    10.
    发明公开
    PROCESS FOR PRODUCING WATER-ABSORBING RESIN POWDER 审中-公开
    HERSTELLUNGSVERFAHRENFÜREIN WASSERABSORBIERENDES HARZPULVER

    公开(公告)号：EP2535369A1

    公开(公告)日：2012-12-19

    申请号：EP11742329.3

    申请日：2011-02-10

    申请人： Nippon Shokubai Co., Ltd.

    发明人： OKUDA, Sumio ,  ISHIZAKI, Kunihiko ,  WADA, Katsuyuki

    IPC分类号： C08J3/12 ,  B01J20/26

    CPC分类号： C08J3/12 ,  B01J20/267 ,  B01J2220/68 ,  C08J3/245 ,  C08J2300/14

    摘要： Provided is a process for producing a water-absorbing resin powder which contains a given amount of water added thereto, has a low dust content, and has high material properties. When a water-absorbing resin powder which has undergone surface crosslinking is produced on an industrial scale, various problems concerning production are eliminated and a long-term stable operation is possible without causing a deterioration in the material properties of the resin. Even when the process is continued over a long period, the material properties are stabilized (decrease in standard deviation) or improved (improvement in AAP). The process for producing a water-absorbing resin comprises, in the following order, a first classification step for classifying a water-absorbing resin, a surface crosslinking step after the classification, a water addition step for adding water to the water-absorbing resin powder after or during the surface crosslinking, a second classification step, and a conveying step.

    摘要翻译： 本发明提供一种吸水树脂粉末的制造方法，其中含有给定量的水，其粉尘含量低，材料性能高。 当以工业规模生产经历表面交联的吸水性树脂粉末时，消除了生产中的各种问题，并且可以长期稳定地操作，而不会导致树脂的材料性能的劣化。 即使该过程长时间持续，材料性质也稳定（标准偏差降低）或改善（AAP改善）。 吸水性树脂的制造方法按照以下顺序包括分级吸水性树脂的第一分级工序，分级后的表面交联工序，向吸水性树脂粉末中添加水的加水工序 在表面交联之后或期间，第二分级步骤和输送步骤。