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    Production process for hydrophilic polymer
    1.
    发明授权
    Production process for hydrophilic polymer 有权
    亲水性聚合物的生产工艺

    公开(公告)号：US06207796B1

    公开(公告)日：2001-03-27

    申请号：US09436345

    申请日：1999-11-09

    申请人： Yorimichi Dairoku ,  Koji Miyake ,  Yasuhiro Fujita ,  Yoshio Irie

    发明人： Yorimichi Dairoku ,  Koji Miyake ,  Yasuhiro Fujita ,  Yoshio Irie

    IPC分类号： C08F600

    CPC分类号： C08F6/02 ,  C08F6/001 ,  C08F6/008

    摘要： The present invention provides a production process to obtain a hydrophilic polymer, having a low residual monomer content, with good productivity while keeping the properties of a hydrogel polymer resultant from polymerization. In a drying process for a hydrogel polymer, the hydrogel polymer is dried under normal pressure at a material temperature of not higher than 90° C. until the water content of the hydrogel polymer reduces to 15˜40 weight %, and then the hydrogel polymer is kept for not shorter than 10 minutes either in a state where the change of the water content of the hydrogel polymer is within 5 weight % and where the material temperature is in the range of 70˜120° C. or in a state where the water content of the hydrogel polymer is in the range of 15˜40 weight % and where the material temperature is in the range of 70˜120° C., and then the hydrogel polymer is finish-dried.

    摘要翻译： 本发明提供一种生产方法，以获得具有低残留单体含量的亲水性聚合物，同时具有良好的生产率，同时保持水凝胶聚合物的聚合性能。 在水凝胶聚合物的干燥过程中，将水凝胶聚合物在不高于90℃的材料温度下在常压下干燥，直到水凝胶聚合物的含水量降低至15〜40重量％，然后将水凝胶聚合物 在水凝胶聚合物的含水量变化在5重量％以内且材料温度在70〜120℃范围内的状态下，保持不短于10分钟，或者在 水凝胶聚合物的含水量在15〜40重量％的范围内，材料温度在70〜120℃的范围内，然后将水凝胶聚合物进行精干。

    Water-absorbent resin and production process therefor
    2.
    发明授权
    Water-absorbent resin and production process therefor 有权
    吸水树脂及其生产工艺

    公开(公告)号：US06867269B2

    公开(公告)日：2005-03-15

    申请号：US10472048

    申请日：2002-12-17

    申请人： Shigeru Sakamoto ,  Yorimichi Dairoku ,  Yasuhiro Fujita ,  Yoshio Irie

    发明人： Shigeru Sakamoto ,  Yorimichi Dairoku ,  Yasuhiro Fujita ,  Yoshio Irie

    IPC分类号： A61L15/60 ,  C08F20/06 ,  C08F220/06

    CPC分类号： C08F220/06 ,  A61L15/60 ,  C08F20/06 ,  Y10S524/916 ,  C08L33/02

    摘要： The present invention provides such a production process that a low-cost water-absorbent resin having excellent quality can be obtained by reasonable steps in aqueous solution polymerization. The production process for a water-absorbent resin comprises a polymerization setup that includes the steps of: supplying an aqueous solution of a water-soluble unsaturated monomer component including a major proportion of acrylic acid and/or its salt into a polymerization vessel causing shearing action; and then carrying out polymerization, involving crosslinking, of the water-soluble unsaturated monomer and at the same time carrying out fine division of the resultant hydrogel; with the production process being characterized in that the aqueous solution of the water-soluble unsaturated monomer component as supplied into the polymerization vessel has a temperature of not lower than 40° C.

    摘要翻译： 本发明提供了这样一种制备方法，即通过在水溶液聚合中的合理步骤可以获得具有优良品质的低成本吸水性树脂。 吸水性树脂的制造方法包括聚合装置，其包括以下步骤：将包含主要比例的丙烯酸和/或其盐的水溶性不饱和单体组分的水溶液供给到引起剪切作用的聚合容器中 ; 然后进行水溶性不饱和单体的交联聚合，同时进行所得水凝胶的细分; 其制造方法的特征在于，供给到聚合容器中的水溶性不饱和单体成分的水溶液的温度不低于40℃。

    Method for continuous production of water-absorbent resin
    4.
    发明授权
    Method for continuous production of water-absorbent resin 有权
    连续生产吸水树脂的方法

    公开(公告)号：US07622535B2

    公开(公告)日：2009-11-24

    申请号：US11089160

    申请日：2005-03-24

    申请人： Yorimichi Dairoku ,  Yoshio Irie ,  Shinichi Fujino ,  Yasuhiro Fujita ,  Kenji Tada ,  Hiroki Inoue ,  Makoto Nagasawa ,  Hirofumi Shibata

    发明人： Yorimichi Dairoku ,  Yoshio Irie ,  Shinichi Fujino ,  Yasuhiro Fujita ,  Kenji Tada ,  Hiroki Inoue ,  Makoto Nagasawa ,  Hirofumi Shibata

    IPC分类号： C08F2/00 ,  C08F236/00 ,  C08F20/06

    CPC分类号： C08F6/006

    摘要： The present invention relates to a method for continuous production of a water-absorbent resin by use of an continuous polymerization device having a charge part of a monomer aqueous solution; an endless belt on which the monomer and a hydropolymer formed are conveyed; and a discharge part of the hydropolymer, wherein the continuous polymerization device has side walls and a ceiling, and the space ratio in the device represented by the equation, “space ratio in the device=B/A”, is in the range of 1.2 to 20. In the equation, A is a maximum cross-sectional area (cm2) of the hydropolymer during the polymerization in the width direction of the endless belt, and B is a maximum cross-sectional area (cm2) of the space between the endless belt of the continuous polymerization device and the ceiling of the continuous polymerization device in the width direction of the endless belt.

    摘要翻译： 本发明涉及使用具有单体水溶液的电荷部分的连续聚合装置连续制造吸水性树脂的方法; 输送单体和形成的氢化聚合物的环状带; 和氢化聚合物的排出部分，其中连续聚合装置具有侧壁和天花板，并且由等式“器件中的空间比= B / A”表示的器件中的空间比在1.2 在该方程式中，A是在环形带的宽度方向上的聚合期间的氢化聚合物的最大横截面积（cm2），B是在环状带的宽度方向上的最大横截面积（cm2） 连续聚合装置的环形带和连续聚合装置的天花板在环形带的宽度方向上。

    Process and apparatus for production of water-absorbent resin
    7.
    发明授权
    Process and apparatus for production of water-absorbent resin 有权
    吸水树脂生产工艺和设备

    公开(公告)号：US07265190B2

    公开(公告)日：2007-09-04

    申请号：US10691586

    申请日：2003-10-24

    申请人： Yorimichi Dairoku ,  Yasuhiro Fujita ,  Shinichi Fujino ,  Hirofumi Shibata ,  Kenji Tada ,  Yoshio Irie

    发明人： Yorimichi Dairoku ,  Yasuhiro Fujita ,  Shinichi Fujino ,  Hirofumi Shibata ,  Kenji Tada ,  Yoshio Irie

    IPC分类号： C08F2/04 ,  C08F2/32 ,  C08F20/06

    CPC分类号： C08F2/01 ,  B01J14/00 ,  B01J19/24 ,  C08F220/06 ,  C08F222/1006 ,  Y10S526/918

    摘要： There is disclosed a process to uniformly and rapidly carry out the mixing of a monomer liquid and a polymerization initiator and thus for the resulting polymer not to adhere to the inner surface of the piping or the inside of the apparatus in an art of producing a water-absorbent resin by continuously mixing the monomer liquid and the polymerization initiator together and thereby carrying out polymerization. This process comprises the steps of: (a) continuously supplying a monomer liquid 20 to such as a supply pipe 10 to continuously stir the monomer liquid 20 in the supply pipe 10 with such as a stirring apparatus 12; (b) causing a polymerization initiator 30 to join into a flow of the monomer liquid 20 being in a stirred state, thereby obtaining a mixed liquid 40 of the monomer liquid 20 and the polymerization initiator 30; and (c) continuously supplying the mixed liquid 40 from the supply pipe line 10 to a polymerization apparatus to cause the mixed liquid 40 to run a polymerization reaction.

    摘要翻译： 公开了一种均匀且快速地进行单体液体和聚合引发剂的混合的方法，因此在生产水的技术中所得聚合物不粘附到管道或设备内部的内表面 通过将单体液体和聚合引发剂连续混合在一起，从而进行聚合。 该方法包括以下步骤：（a）将单体液体20连续地供给到供给管10，以通过搅拌装置12连续地搅拌供给管10中的单体液20; （b）使聚合引发剂30接合到处于搅拌状态的单体液体20的流动中，从而得到单体液20和聚合引发剂30的混合液40; 和（c）将混合液40从供给管线10连续供给聚合装置，使混合液40进行聚合反应。

    Method for continuous production of water-absorbent resin
    8.
    发明申请
    Method for continuous production of water-absorbent resin 有权
    连续生产吸水树脂的方法

    公开(公告)号：US20050215734A1

    公开(公告)日：2005-09-29

    申请号：US11089160

    申请日：2005-03-24

    申请人： Yorimichi Dairoku ,  Yoshio Irie ,  Shinichi Fujino ,  Yasuhiro Fujita ,  Kenji Tada ,  Hiroki Inoue ,  Makoto Nagasawa ,  Hirofumi Shibata

    发明人： Yorimichi Dairoku ,  Yoshio Irie ,  Shinichi Fujino ,  Yasuhiro Fujita ,  Kenji Tada ,  Hiroki Inoue ,  Makoto Nagasawa ,  Hirofumi Shibata

    IPC分类号： C08F6/00 ,  C08F8/00 ,  C08F2/00

    CPC分类号： C08F6/006

    摘要： The present invention relates to a method for continuous production of a water-absorbent resin by use of an continuous polymerization device having a charge part of a monomer aqueous solution; an endless belt on which the monomer and a hydropolymer formed are conveyed; and a discharge part of the hydropolymer, wherein the continuous polymerization device has side walls and a ceiling, and the space ratio in the device represented by the equation, “space ratio in the device=B/A”, is in the range of 1.2 to 20. In the equation, A is a maximum cross-sectional area (cm2) of the hydropolymer during the polymerization in the width direction of the endless belt, and B is a maximum cross-sectional area (cm2) of the space between the endless belt of the continuous polymerization device and the ceiling of the continuous polymerization device in the width direction of the endless belt.

    摘要翻译： 本发明涉及使用具有单体水溶液的电荷部分的连续聚合装置连续制造吸水性树脂的方法; 输送单体和形成的氢化聚合物的环状带; 和氢化聚合物的排出部分，其中连续聚合装置具有侧壁和天花板，并且由等式“器件中的空间比= B / A”表示的器件中的空间比在1.2 在等式中，A是在环形带的宽度方向上的聚合期间的氢化聚合物的最大横截面积（cm 2），B是最大横截面积 连续聚合装置的环形带与连续聚合装置的天花板之间的距离（cm 2）在环形带的宽度方向上。

    Water-absorbent resin, hydropolymer, process for producing them, and uses of them
    9.
    发明授权
    Water-absorbent resin, hydropolymer, process for producing them, and uses of them 有权
    吸水性树脂，氢化聚合物，制造方法及其用途

    公开(公告)号：US06906159B2

    公开(公告)日：2005-06-14

    申请号：US09917642

    申请日：2001-07-31

    申请人： Yorimichi Dairoku ,  Yoshio Irie ,  Shinichi Fujino ,  Yasuhiro Fujita ,  Takashi Azumi ,  Kunihiko Ishizaki

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

    IPC分类号： A61L15/24 ,  C08F2/00 ,  C08F20/06 ,  C08F2/10

    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： 本发明提供一种通过在水溶液聚合中合理的步骤以低成本获得优质品质的吸水性树脂的生产方法。 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性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; （3）由聚合形成的氢化聚合物中的固体成分浓度为80重量％以下。