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    Water-absorbent resin, hydropolymer, process for producing them, and uses of them
    1.
    发明公开
    Water-absorbent resin, hydropolymer, process for producing them, and uses of them 审中-公开
    Wasserabsorbierendes Harz，Hydropolymerverfahrenfürdessen Herstellung und dessen Verwendung

    公开(公告)号：EP2206733A1

    公开(公告)日：2010-07-14

    申请号：EP10003914.8

    申请日：2001-08-01

    申请人： Nippon Shokubai Co., Ltd.

    发明人： Dairoku, Yorimichi ,  Irie, Yoshio ,  Fujino, Shinichi ,  Fujita, Yasuhiro ,  Azumi, Takashi ,  Ishizaki, Kunihiko

    IPC分类号： C08F20/06 ,  A61L15/00

    CPC分类号： C08F220/06 ,  A61L15/24 ,  C08F2/001 ,  C08F2/01 ,  C08F2/10 ,  C08F20/06 ,  C08F222/1006 ,  C08L33/02

    摘要： The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.

    摘要翻译： 本发明提供一种生产方法，通过在水溶液聚合中合理的步骤，可以以低成本获得优质品质的吸水性树脂。 吸水性树脂的制造方法包括使包含丙烯酸和/或其钠盐作为主要成分的吸水性树脂形成单体的水溶液聚合的步骤，其中：（1）水溶液具有单体成分 浓度不低于45重量％; （2）在蒸发水的同时进行聚合，使得通过聚合形成的氢化聚合物中的固体成分浓度与单体水溶液中的固体成分浓度之间的比例（浓度比）不小于1.10; 和（3）通过聚合形成的氢化聚合物中的固体成分浓度不大于80重量％。

    Water-absorbent resin, hydropolymer, process for producing them, and uses of them
    2.
    发明公开
    Water-absorbent resin, hydropolymer, process for producing them, and uses of them 有权
    Wasserabsorbierendes Harz，Hydropolymer，Verfahren zu seiner Herstellung und seiner Verwendung

    公开(公告)号：EP1178059A2

    公开(公告)日：2002-02-06

    申请号：EP01118530.3

    申请日：2001-08-01

    申请人： Nippon Shokubai Co., Ltd.

    发明人： Dairoku, Yorimichi ,  Irie, Yoshio ,  Fujino, Shinichi ,  Fujita, Yasuhiro ,  Azumi, Takashi ,  Ishizaki, Kunihiko

    IPC分类号： C08F20/06 ,  A61L15/00

    CPC分类号： C08F220/06 ,  A61L15/24 ,  C08F2/001 ,  C08F2/01 ,  C08F2/10 ,  C08F20/06 ,  C08F222/1006 ,  C08L33/02

    摘要： The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.

    摘要翻译： 本发明提供一种生产方法，通过在水溶液聚合中合理的步骤，可以以低成本获得优质品质的吸水性树脂。 吸水性树脂的制造方法包括使包含丙烯酸和/或其钠盐作为主要成分的吸水性树脂形成单体的水溶液聚合的步骤，其中：（1）水溶液具有单体成分 浓度不低于45重量％; （2）在蒸发水的同时进行聚合，使得通过聚合形成的氢化聚合物中的固体成分浓度与单体水溶液中的固体成分浓度之间的比例（浓度比）不小于1.10; 和（3）通过聚合形成的氢化聚合物中的固体成分浓度不大于80重量％。

    Water-absorbent resin, hydropolymer process for producing them, and uses of them
    7.
    发明公开
    Water-absorbent resin, hydropolymer process for producing them, and uses of them 有权
    Wasserabsorbierendes Harz，Hydropolymerverfahrenfürdessen Herstellung und Verwendung davon

    公开(公告)号：EP1903062A3

    公开(公告)日：2008-04-23

    申请号：EP07020325.2

    申请日：2001-08-01

    申请人： Nippon Shokubai Co.,Ltd.

    发明人： Dairoku, Yorimichi ,  Irie, Yoshio ,  Fujino, Shinichi ,  Fujita, Yasuhiro ,  Azumi, Takashi ,  Ishizaki, Kunihiko

    IPC分类号： C08F20/06 ,  A61L15/00

    CPC分类号： C08F220/06 ,  A61L15/24 ,  C08F2/001 ,  C08F2/01 ,  C08F2/10 ,  C08F20/06 ,  C08F222/1006 ,  C08L33/02

    摘要： The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The process for producing a water-absorbent resin comprises the step of polymerizing an aqueous solution of water-absorbent resin-forming monomers including acrylic acid and/or its sodium salt as major components, wherein: (1) the aqueous solution has a monomer component concentration of not less than 45 weight %; (2) the polymerization is carried out while water is evaporated so that the ratio (concentration ratio) between a solid component concentration in a hydropolymer as formed by the polymerization and a solid component concentration in the aqueous monomer solution will not be less than 1.10; and (3) the solid component concentration in the hydropolymer as formed by the polymerization is not more than 80 weight %.

    摘要翻译： 本发明提供一种生产方法，通过在水溶液聚合中合理的步骤，可以以低成本获得优质品质的吸水性树脂。 吸水性树脂的制造方法包括使包含丙烯酸和/或其钠盐作为主要成分的吸水性树脂形成单体的水溶液聚合的步骤，其中：（1）水溶液具有单体成分 浓度不低于45重量％; （2）在蒸发水的同时进行聚合，使得通过聚合形成的氢化聚合物中的固体成分浓度与单体水溶液中的固体成分浓度之间的比例（浓度比）不小于1.10; 和（3）通过聚合形成的氢化聚合物中的固体成分浓度不大于80重量％。