Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin
    1.
    发明授权
    Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin 有权
    表面交联吸水树脂的方法和吸水树脂的制造方法

    公开(公告)号:US07851550B2

    公开(公告)日:2010-12-14

    申请号:US11641885

    申请日:2006-12-20

    IPC分类号: C08F8/00 C08F20/04

    摘要: A method for surface crosslinking water-absorbing resin of the present invention includes a step (1) of obtaining a wet mixture, a step (2) of obtaining a dried particulate composition, and a step (3) of carrying out a surface crosslinking reaction. With this, since a processing time of each step becomes short, it is possible to mass produce the water-absorbing resin having excellent physical properties. Moreover, a method for manufacturing the water-absorbing resin of the present invention includes a modifying step and a cooling step. The modifying step and/or the cooling step are/is carried out by using stirring means including a rotation axis having a plurality of stirring boards, and the stirring means includes the stirring board having a specific thickness and/or a scraping blade having a specific shape. With this, it is possible to suppress the generation of the fine powder in the modifying step and/or the cooling step.

    摘要翻译: 本发明的表面交联吸水性树脂的方法包括获得湿混合物的步骤(1),获得干燥的颗粒组合物的步骤(2)和进行表面交联反应的步骤(3) 。 由此,由于每个步骤的处理时间变短,因此可以大量生产具有优异物理性能的吸水性树脂。 此外,本发明的吸水性树脂的制造方法包括改性工序和冷却工序。 通过使用包括具有多个搅拌板的旋转轴的搅拌装置进行修改步骤和/或冷却步骤,并且搅拌装置包括具有特定厚度的搅拌板和/或具有特定厚度的刮板 形状。 由此,可以抑制修饰工序和/或冷却工序中的细粉的产生。

    Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin
    2.
    发明申请
    Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin 有权
    表面交联吸水树脂的方法和吸水树脂的制造方法

    公开(公告)号:US20070149760A1

    公开(公告)日:2007-06-28

    申请号:US11641885

    申请日:2006-12-20

    IPC分类号: C08F6/00

    摘要: A method for surface crosslinking water-absorbing resin of the present invention includes a step (1) of obtaining a wet mixture, a step (2) of obtaining a dried particulate composition, and a step (3) of carrying out a surface crosslinking reaction. With this, since a processing time of each step becomes short, it is possible to mass produce the water-absorbing resin having excellent physical properties. Moreover, a method for manufacturing the water-absorbing resin of the present invention includes a modifying step and a cooling step. The modifying step and/or the cooling step are/is carried out by using stirring means including a rotation axis having a plurality of stirring boards, and the stirring means includes the stirring board having a specific thickness and/or a scraping blade having a specific shape. With this, it is possible to suppress the generation of the fine powder in the modifying step and/or the cooling step.

    摘要翻译: 本发明的表面交联吸水性树脂的方法包括获得湿混合物的步骤(1),获得干燥的颗粒组合物的步骤(2)和进行表面交联反应的步骤(3) 。 由此,由于每个步骤的处理时间变短,因此可以大量生产具有优异物理性能的吸水性树脂。 此外,本发明的吸水性树脂的制造方法包括改性工序和冷却工序。 通过使用包括具有多个搅拌板的旋转轴的搅拌装置进行修改步骤和/或冷却步骤,并且搅拌装置包括具有特定厚度的搅拌板和/或具有特定厚度的刮板 形状。 由此,可以抑制修饰工序和/或冷却工序中的细粉的产生。

    CLASSIFICATION METHOD OF PARTICULATE WATER ABSORBENT RESIN
    4.
    发明申请
    CLASSIFICATION METHOD OF PARTICULATE WATER ABSORBENT RESIN 审中-公开
    颗粒吸水树脂分类方法

    公开(公告)号:US20100101982A1

    公开(公告)日:2010-04-29

    申请号:US12532909

    申请日:2008-03-24

    IPC分类号: B07B9/00

    摘要: A particulate water absorbent resin is obtained by polymerizing an unsaturated monomer so as to form a cross-linked polymer hydrogel and drying and pulverizing the cross-linked polymer hydrogel, and plural classification steps different from each other are carried out so as to remove fine powder. In this manner, the present invention provides the method for classification of particulate water absorbent resin which method allows particulate water absorbent resin having a desired particle diameter range to be efficiently obtained at low cost while securing the high productivity even in case where a larger production equipment is used.

    摘要翻译: 通过聚合不饱和单体以形成交联聚合物水凝胶并干燥和粉碎交联聚合物水凝胶,获得颗粒状吸水性树脂,并且进行彼此不同的多个分级步骤,以除去细粉末 。 以这种方式,本发明提供了一种颗粒状吸水性树脂的分级方法,即使在较大的生产设备的情况下,也能够以高成本有效地获得具有期望粒径范围的颗粒状吸水性树脂, 用来。

    Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material
    6.
    发明授权
    Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material 有权
    吸水材料,表面交联吸水性树脂的制造方法以及吸水材料的评价方法

    公开(公告)号:US08501873B2

    公开(公告)日:2013-08-06

    申请号:US11660758

    申请日:2005-08-31

    IPC分类号: C08F8/42 C08F8/12 C08F6/02

    摘要: A homogeneously surface cross-linked water absorbent resin and a method for the production thereof are provided.The water absorbent material is formed of a surface cross-linked water absorbent resin resulting from granular irregularly pulverized shaped surface cross-linking the product of partial neutralization or whole neutralization of a water absorbent resin having acrylic acid or a metal salt thereof as a main component, which water absorbent material shows a metal atom concentration on the surface of the water absorbent material in the range of 0-10% within 0 second of polishing and 2-35% at 10 seconds value of polishing as determined by subjecting the water absorbent material to Ar ion discharge polishing under a voltage of 500 Å. The surface cross-linked water absorbent resin to be used herein can be produced by surface cross-linking a water absorbent resin having a specific particle diameter with a surface cross-linking agent having a water concentration in a specific range.

    摘要翻译: 提供均匀的表面交联型吸水性树脂及其制造方法。 吸水材料由表面交联的吸水性树脂形成,该表面交联的吸水性树脂是由具有丙烯酸或其金属盐作为主要成分的吸水性树脂的部分中和或全部中和产生的颗粒不规则粉碎的表面交联而成的 该吸水材料在抛光的0秒内在吸水材料的表面上表现出0-10%的范围内的金属原子浓度,在10秒的抛光时间为2-35%,通过使吸水材料 在500的电压下进行Ar离子放电研磨。 这里使用的表面交联型吸水性树脂可以通过将具有特定粒径的吸水性树脂与具有特定范围的水分浓度的表面交联剂进行表面交联来制造。

    Method for production of porous cross-linked poymer
    8.
    发明授权
    Method for production of porous cross-linked poymer 有权
    多孔交联聚合物的生产方法

    公开(公告)号:US06395792B1

    公开(公告)日:2002-05-28

    申请号:US09689350

    申请日:2000-10-12

    IPC分类号: C08J928

    摘要: An object of this invention is to provide a method for the production of a porous cross-linked polymer, which permits the polymerization (curing) of a water in oil type high internal phase emulsion (HIPE) in such an exceptionally brief time as not more than 30 minutes, preferably not more than 10 minutes without impairing the stability of the HIPE. The object of this invention mentioned above can be accomplished by a method for the production of a porous cross-linked polymer which comprises steps of mixing an oil phase containing a polymerizing monomer, a cross-linking monomer, and a surfactant as essential components with a water phase containing water as an essential component thereby obtaining a water in oil type high internal phase emulsion and heating said emulsion to a prescribed curing temperature thereby polymerizing the emulsion, wherein said emulsion is formed in a thickness of not more than 50 mm and the temperature-increasing rate of the emulsion is not less than 5° C./minute.

    摘要翻译: 本发明的目的是提供一种生产多孔交联聚合物的方法,其允许在非常短的时间内将油包水型高内相乳液(HIPE)中的聚合(固化)不再多 超过30分钟,优选不超过10分钟,而不损害HIPE的稳定性。 上述本发明的目的可以通过生产多孔交联聚合物的方法来实现,该方法包括以下步骤:将含有聚合单体的油相,交联单体和表面活性剂作为必需组分混合, 水相作为必要成分,由此获得油包水型高内相乳液,并将所述乳液加热到规定的固化温度,从而使乳液聚合,其中所述乳液的形成厚度不大于50mm,温度 - 乳液的增加速度不低于5℃/分钟。

    Water-absorbing agent and its production process
    9.
    发明申请
    Water-absorbing agent and its production process 有权
    吸水剂及其生产工艺

    公开(公告)号:US20060247351A1

    公开(公告)日:2006-11-02

    申请号:US11373215

    申请日:2006-03-13

    IPC分类号: C09D5/08 C08K3/22 C04B26/06

    摘要: A water-absorbing agent according to the present invention includes water-absorbent resin particles having an internal cross-linked structure,.wherein a vicinity of a surface of the water-absorbent resin particle is cross-linked with a surface cross-linking agent, and the water-absorbent resin particle has therein a sea-island structure having (i) part containing a first water-soluble multivalent metal salt such as aluminum sulfate and (ii) part not containing the first water-soluble multivalent metal salt. With this arrangement, it is possible to provide a water-absorbing agent having less water-soluble component content, more excellent liquid permeability, and more excellent water retention under pressure than the conventional water-absorbing agent.

    摘要翻译: 根据本发明的吸水剂包括具有内部交联结构的吸水性树脂颗粒,其中吸水性树脂颗粒的表面附近与表面交联剂交联, 并且吸水性树脂颗粒具有海岛结构,其具有(i)部分含有第一水溶性多价金属盐如硫酸铝和(ii)不含第一水溶性多价金属盐的部分。 通过这种布置,可以提供比常规吸水剂更低的水溶性组分含量,更好的液体渗透性和更优异的保压性的吸水剂。

    Vater-absorbent resin composition and its production process
    10.
    发明申请
    Vater-absorbent resin composition and its production process 有权
    吸水树脂组合物及其制备方法

    公开(公告)号:US20060073969A1

    公开(公告)日:2006-04-06

    申请号:US10544348

    申请日:2004-02-06

    IPC分类号: B01J20/00

    CPC分类号: A61L15/60

    摘要: There are disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition causes little gel-blocking and is excellent in the liquid permeability and liquid diffusibility and is high also in the absorption performances and further is strong also against the physical damage; and there are further disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition has the following further advantages, in addition to the above, of involving little segregation of the metal compound and further having a dust prevention effect. One of water-absorbent resin compositions according to the present invention is a water-absorbent resin composition comprising water-absorbent resin particles obtained by polymerizing a monomer including acrylic acid and/or its salt, with the composition having a mass-average particle diameter of 100 to 600 μm and comprising water-soluble polyvalent metal salt particles and the water-absorbent resin particles that have been surface-crosslinked.

    摘要翻译: 公开了吸水性树脂组合物及其制造方法,其中吸水性树脂组合物几乎没有凝胶阻塞,并且液体渗透性和液体扩散性优异,并且吸收性能也高,并且还强 物理伤害; 并且还公开了一种吸水性树脂组合物及其制造方法,其中除了上述之外,吸水性树脂组合物具有以下进一步的优点,即涉及金属化合物几乎不偏析并且还具有防尘效果 。 根据本发明的吸水性树脂组合物之一是吸收性树脂组合物,其包含通过使包含丙烯酸和/或其盐的单体聚合而获得的吸水性树脂颗粒,其组成物的质量平均粒径为 100〜600μm,含有水溶性多价金属盐粒子和表面交联的吸水性树脂粒子。