会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Method of production of water-absorbing resin
    • 吸水树脂的生产方法
    • US6100305A
    • 2000-08-08
    • US91462
    • 1998-06-18
    • Koji MiyakeYoshihiro MotonoNobuyuki HaradaAkito YanoTeruyuki KantoShigeru Sakamoto
    • Koji MiyakeYoshihiro MotonoNobuyuki HaradaAkito YanoTeruyuki KantoShigeru Sakamoto
    • B01J20/26C08J9/36
    • B01J20/26
    • A water-absorbent resin is produced by crushing a mass of crosslinked hydrogel polymer having high adhesion and elastic properties without kneading it, and drying the crushed crosslinked hydrogel polymer. In the case when the crosslinked hydrogel polymer includes cells therein, the crosslinked hydrogel polymer is crushed so as to restrain reduction in the number of cells contained in the crosslinked hydrogel polymer. The crosslinked hydrogel polymer is crushed by any of crushing methods including: shearing the crosslinked hydrogel polymer with a fixed blade and a rotary blade; cutting the crosslinked hydrogel polymer with a cutter having a pair of rotary blades that are mounted on different shafts and rotate while at least partly overlapping each other; cutting the crosslinked hydrogel polymer with a cutter having a rotary blade using a lubricant; and crushing the crosslinked hydrogel polymer after freezing. With the use of the above methods, it is possible to industrially and easily mass-produce porous water-absorbent resins with excellent absorption properties while restraining reduction in the number of cells contained in the crosslinked hydrogel polymer.
    • PCT No.PCT / JP97 / 03753 Sec。 371日期1998年6月18日 102(e)1998年6月18日PCT 1997年10月16日PCT PCT。 第WO98 / 17453号公报 日期:1998年04月30日吸水性树脂通过粉碎具有高粘合性和弹性的交联水凝胶聚合物的质量而不进行捏合而制造,并干燥破碎的交联水凝胶聚合物。 当交联的水凝胶聚合物包括其中的细胞时,交联的水凝胶聚合物被粉碎,以便抑制交联的水凝胶聚合物中所含的细胞数量的减少。 交联的水凝胶聚合物通过任何破碎方法粉碎,包括:用固定刀片和旋转刀片剪切交联的水凝胶聚合物; 用具有一对旋转叶片的切割器切割交联的水凝胶聚合物,所述一对旋转叶片安装在不同的轴上并在彼此至少部分重叠的同时旋转; 用具有旋转叶片的切割机使用润滑剂切割交联的水凝胶聚合物; 并在冷冻后破碎交联的水凝胶聚合物。 通过使用上述方法,可以在抑制交联水凝胶聚合物中所含的细胞数量的抑制的情况下,工业上容易地大量生产具有优异吸收性能的多孔吸水性树脂。
    • 7. 发明授权
    • Water-absorbent resin powder and production process therefor
    • 吸水树脂粉及其制作方法
    • US06576713B2
    • 2003-06-10
    • US09789735
    • 2001-02-22
    • Kunihiko IshizakiTeruyuki KantoNobuyuki HaradaTakumi HatsudaShinichi Fujino
    • Kunihiko IshizakiTeruyuki KantoNobuyuki HaradaTakumi HatsudaShinichi Fujino
    • C08F22062
    • C08J3/12C08J3/122C08J2300/14Y10T428/2982
    • The present invention provides a production process for a water-absorbent resin powder which is excellent in particle diameter distribution and properties, wherein the production process not only inhibits adhesion and aggregation in the production steps, but also is excellent in energy efficiency, drying efficiency, and productivity. The production process for a water-absorbent resin powder comprises the steps of: polymerizing an aqueous monomer solution containing a crosslinking agent; heat-drying the resultant crosslinked hydrogel polymer; and pulverizing the resultant dry polymer; wherein: the dry polymer resultant from the heat-drying step is forcibly cooled before or during the pulverization step; and the water-absorbent resin powder has an average particle diameter of 200 to 600 &mgr;m after the pulverization step wherein the total ratio of particles having particle diameters of not larger than 150 &mgr;m and particles having particle diameters of not smaller than 850 &mgr;m in the water-absorbent resin powder is not more than 15 weight % of the water-absorbent resin powder.
    • 本发明提供一种吸水性树脂粉末的制造方法,其特征在于,粒径分布和性能优异,其制造方法不仅抑制了制造工序中的粘合和聚集,而且能量效率,干燥效率, 和生产率。 吸水性树脂粉末的制造方法包括以下步骤:使含有交联剂的单体水溶液聚合; 加热干燥所得的交联水凝胶聚合物; 并粉碎所得的干燥聚合物; 其中:由所述加热干燥步骤得到的干燥聚合物在粉碎步骤之前或阶段被强制冷却; 吸水性树脂粉末在粉碎工序中的平均粒径为200〜600μm,其中粒径不大于150μm的颗粒和颗粒直径不小于850μm的颗粒在水中的总比例 - 吸收性树脂粉末的吸水树脂粉末的15重量%以下。