公开(公告)号：US20120157650A1

公开(公告)日：2012-06-21

申请号：US13392214

申请日：2010-08-27

申请人： Kozo Nogi ,  Kunihiko Ishizaki ,  Kazumasa Konishi

发明人： Kozo Nogi ,  Kunihiko Ishizaki ,  Kazumasa Konishi

IPC分类号： C08F20/06

CPC分类号： A61L15/24 ,  A61L15/60 ,  C08F120/06 ,  C08F220/06 ,  C08J3/24 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08L33/08 ,  C08F2222/1013

摘要： A process for producing a water absorbent resin is provided with which it is possible to efficiently and inexpensively obtain a surface-crosslinked water-absorbing resin having excellent material properties, while ensuring high productivity. In continuous production scaled up to a large scale (in particular, 1 t/hr or more), the physical properties are improved and stabilized (for example, a reduction in standard deviation of the physical properties) by a surface crosslinking treatment to further improve absorption against pressure (AAP) and saline flow conductivity (SFC). The process for producing a polyacrylic acid (salt)-type water absorbent resin includes a surface treatment step in which after addition of a surface-crosslinking agent, a crosslinking reaction is conducted in a transverse type continuous stirring apparatus having stirring means including a feeding inlet and a discharging outlet of a water absorbent resin and one or more rotary shafts having with a plurality of stirring discs, and heating means, at a stirring-power index of the device of 3-15 W·hr/kg. (Stirring-power index)=((power consumption of apparatus at the time surface treatment)−(power consumption at the time of idling))×average retention time)/(treatment amount per unit time×average retention time)

摘要翻译： 提供一种生产吸水性树脂的方法，其可以有效且廉价地获得具有优异材料性能的表面交联吸水性树脂，同时确保高生产率。 在大规模（特别是1t / hr以上）的连续生产中，物理性能通过表面交联处理得到改善和稳定（例如物理性能的标准偏差的降低），以进一步改善 吸收抗压力（AAP）和盐水流动电导率（SFC）。 制备聚丙烯酸（盐）型吸水性树脂的方法包括表面处理步骤，其中加入表面交联剂后，在具有搅拌装置的横向连续搅拌装置中进行交联反应，所述搅拌装置包括进料口 以及具有多个搅拌盘的吸水性树脂的排出口和具有多个搅拌盘和加热装置的装置的搅拌功率指数为3-15W·hr / kg的一个或多个旋转轴。 （搅拌功率指数）=（（表面处理时的设备的功率消耗） - （怠速时的功耗）×平均保持时间）/（每单位时间的处理量×平均保持时间）

公开(公告)号：US20110015351A1

公开(公告)日：2011-01-20

申请号：US12921877

申请日：2009-03-13

申请人： Kozo Nogi ,  Sumio Okuda ,  Keiji Inoue ,  Kazumasa Konishi ,  Toru Nishioka ,  Yusuke Watanabe

发明人： Kozo Nogi ,  Sumio Okuda ,  Keiji Inoue ,  Kazumasa Konishi ,  Toru Nishioka ,  Yusuke Watanabe

IPC分类号： C08F8/00

CPC分类号： B65B1/08 ,  B01J20/26 ,  B01J20/267 ,  B01J20/30 ,  B01J2220/68 ,  B65B1/06 ,  B65B1/22 ,  B65B37/04 ,  C08F20/06 ,  C08J3/245

摘要： Provided is a production method for the particulate water-absorbing agent, which can collecting the fine powders generated during the producing process efficiently without worsening working environment, and also the particulate water-absorbing agent produced by the production method thereof. This production method includes (1) a polymerization step for obtaining a polymer gel, (2) a drying step for drying said polymer gel to obtain a particulate water-absorbing resin, (3) a classification step for sieving said particulate water-absorbing resin, (4) a surface cross-linking step for cross-linking the neighborhood of the surface of said particulate water-absorbing resin (5) a packaging step for filling a packaging material container with said particulate water-absorbing agent for packaging and (6) a transportation step for transporting the products produced in each of the steps to the other steps. In this production method, the fine powders contained in gas composed principally of air, in any of the steps, can be collected by use of a trapping material.

摘要翻译： 本发明提供一种颗粒状吸水剂的制造方法，其能够有效地收集生产过程中产生的微细粉末而不会使工作环境恶化，也可以通过其制造方法生产的颗粒状吸水剂。 该制造方法包括（1）获得聚合物凝胶的聚合步骤，（2）干燥所述聚合物凝胶以获得颗粒状吸水性树脂的干燥步骤，（3）筛分所述颗粒状吸水性树脂 （4）用于将所述颗粒状吸水树脂（5）的表面附近交联的表面交联步骤，用于将包装材料容器与所述颗粒状吸水剂填充的包装步骤（6 ）用于将在每个步骤中生产的产品运送到其他步骤的运输步骤。 在该制造方法中，可以通过使用捕集材料来收集在任何步骤中主要由空气组成的气体中所含的细粉末。