Vater-absorbent resin composition and its production process
    1.
    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。

    Water-absorbent resin composition and its production process
    2.
    发明授权
    Water-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:US08247491B2

    公开(公告)日:2012-08-21

    申请号:US10544348

    申请日:2004-02-06

    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,并且包含水溶性多价金属盐颗粒和表面交联的吸水性树脂颗粒。

    METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER
    4.
    发明申请
    METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER 有权
    生产聚丙烯酸(盐) - 水吸收树脂粉末的方法

    公开(公告)号:US20130102750A1

    公开(公告)日:2013-04-25

    申请号:US13643682

    申请日:2011-04-27

    IPC分类号: C08J3/12 C08F122/10

    摘要: A water absorbent resin having less fine powder or powdery dust and a controlled particle size is provided, and the water absorption rate of the water absorbent resin is increased by a simple method at low cost, while maintaining or improving other physical properties such as liquid permeability. Disclosed is a method for producing a polyacrylic acid (salt)-type water absorbent resin powder, which includes, in sequence, a step of polymerizing an aqueous solution of acrylic acid (salt)-type monomer; a step of gel-crushing a gel of a water-containing gel-like crosslinked polymer during polymerization or after polymerization; a step of drying the water-containing gel-like crosslinked polymer; and a step of pulverizing and classifying the dried polymer, wherein water absorbent resin fine particles having a particle size of less than 150 μm or a hydrated-particles thereof is added to a step prior to the drying step, and in the drying step, hot air drying is carried out with a hot air having an average flow velocity of 1.0 to 3.0 [m/s], a dew point of 30° C. to 100° C., and a hot air temperature of 140° C. to 235° C.

    摘要翻译: 提供具有较少粉末或粉末粉尘和受控粒度的吸水性树脂,并且通过简单的方法以低成本提高吸水性树脂的吸水率,同时保持或改善其它物理性质如液体渗透性 。 公开了一种聚丙烯酸(盐)型吸水性树脂粉末的制造方法,其中,依次包括使丙烯酸(盐)型单体的水溶液聚合的工序; 在聚合过程中或聚合后凝胶化凝胶状凝胶状交联聚合物凝胶的步骤; 干燥含水凝胶状交联聚合物的工序; 以及将干燥聚合物粉碎分级的步骤,其中将粒径小于150μm的吸水性树脂细颗粒或其水合物颗粒加入到干燥步骤之前的步骤中,并且在干燥步骤中,热 使用平均流速为1.0〜3.0 [m / s],露点为30℃〜100℃,热风温度为140℃〜235℃的热风进行空气干燥 C。

    Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material
    5.
    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 producing polyacrylic acid (salt) type water absorbent resin powder
    6.
    发明授权
    Method for producing polyacrylic acid (salt) type water absorbent resin powder 有权
    聚丙烯酸(盐)型吸水性树脂粉末的制造方法

    公开(公告)号:US08765906B2

    公开(公告)日:2014-07-01

    申请号:US13643682

    申请日:2011-04-27

    IPC分类号: C08G63/02 C08G63/00

    摘要: A water absorbent resin having less fine powder or powdery dust and a controlled particle size is provided, and the water absorption rate of the water absorbent resin is increased by a simple method at low cost, while maintaining or improving other physical properties such as liquid permeability. Disclosed is a method for producing a polyacrylic acid (salt)-type water absorbent resin powder, which includes, in sequence, a step of polymerizing an aqueous solution of acrylic acid (salt)-type monomer; a step of gel-crushing a gel of a water-containing gel-like crosslinked polymer during polymerization or after polymerization; a step of drying the water-containing gel-like crosslinked polymer; and a step of pulverizing and classifying the dried polymer, wherein water absorbent resin fine particles having a particle size of less than 150 μm or a hydrated-particles thereof is added to a step prior to the drying step, and in the drying step, hot air drying is carried out with a hot air having an average flow velocity of 1.0 to 3.0 [m/s], a dew point of 30° C. to 100° C., and a hot air temperature of 140° C. to 235° C.

    摘要翻译: 提供具有较少粉末或粉末粉尘和受控粒度的吸水性树脂,并且通过简单的方法以低成本提高吸水性树脂的吸水率,同时保持或改善其它物理性质如液体渗透性 。 公开了一种聚丙烯酸(盐)型吸水性树脂粉末的制造方法,其中,依次包括使丙烯酸(盐)型单体的水溶液聚合的工序; 在聚合过程中或聚合后凝胶化凝胶状凝胶状交联聚合物凝胶的步骤; 干燥含水凝胶状交联聚合物的工序; 将干燥聚合物粉碎并分级的步骤,其中在干燥步骤之前的步骤中加入粒径小于150μm的吸水性树脂微粒或其水合颗粒,并且在干燥步骤中,热 使用平均流速为1.0〜3.0 [m / s],露点为30℃〜100℃,热风温度为140℃〜235℃的热风进行空气干燥 C。

    Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof
    7.
    发明授权
    Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof 有权
    碱性吸水性树脂和吸水剂的制造方法及其用途

    公开(公告)号:US06881792B2

    公开(公告)日:2005-04-19

    申请号:US10689075

    申请日:2003-10-21

    摘要: The present invention provides: a production process for a basic water-absorbent resin to be a main component of a water-absorbing agent which exhibits an excellent water absorption capacity under a load with high productivity; a production process for a water-absorbing agent; and use thereof. The production process for an irregular shape basic water-absorbent resin comprises the step of reacting a basic resin and a crosslinking agent in order to obtain the basic water-absorbent resin, with the process forwarding a crosslinking reaction and pulverizing the resultant product at the same time. The first production process for a water-absorbing agent comprises the step of blending an acidic water-absorbent resin with the basic water-absorbent resin obtained by the above-mentioned process. The second production process for a water-absorbing agent comprises the step of obtaining a mixture of an acidic water-absorbent resin and the basic water-absorbent resin by coexisting with the acidic water-absorbent resin when carrying out the crosslinking reaction and the pulverization in the above-mentioned process.

    摘要翻译: 本发明提供:作为吸水剂的主要成分的碱性吸水性树脂的制造方法,其在高生产率的负载下表现出优异的吸水能力; 吸水剂的生产方法; 及其用途。 不规则形状的基本吸水性树脂的制造方法包括使碱性树脂和交联剂反应以获得碱性吸水性树脂的步骤,其中进行交联反应并将所得产物在相同的条件下粉碎 时间。 吸水剂的第一种制备方法包括将酸性吸水性树脂与通过上述方法获得的碱性吸水性树脂混合的步骤。 吸水剂的第二制造方法包括以下步骤:当进行交联反应和粉碎时,通过与酸性吸水性树脂共存获得酸性吸水性树脂和碱性吸水性树脂的混合物 上述过程。

    Water Absorbent Material, Method for Production of Surface Cross-Linked Water Absorbent Resin, and Method for Evaluation of Water Absorbent Material
    8.
    发明申请
    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:US20070264489A1

    公开(公告)日:2007-11-15

    申请号:US11660758

    申请日:2005-08-31

    IPC分类号: C08J3/24 C08L101/14

    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。

    Aqueous-liquid-absorbing agent and its production process
    9.
    发明授权
    Aqueous-liquid-absorbing agent and its production process 有权
    含水液体吸收剂及其制备方法

    公开(公告)号:US07981833B2

    公开(公告)日:2011-07-19

    申请号:US10593706

    申请日:2005-03-11

    IPC分类号: B01J20/26

    CPC分类号: C08J3/245

    摘要: An object of the present invention is to provide an aqueous-liquid-absorbing agent which comprises water-absorbent resin particles as essential components and is suitable for uses in sanitary materials. As a means of achieving this object, an aqueous-liquid-absorbing agent according to the present invention is an aqueous-liquid-absorbing agent comprising water-absorbent resin particles as essential components, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer and have a crosslinked structure in their inside; with the aqueous-liquid-absorbing agent exhibiting an absorption rate (FSR) of not less than 0.2 g/g/s, a water absorption capacity (CRC) of 5 to 25 g/g, a saline flow conductivity (SFC) of not less than 400×10−7 cm3·s/g, and a wet porosity of not less than 20%.

    摘要翻译: 本发明的目的是提供一种含水吸收剂,其包含作为必需成分的吸水性树脂粒子,适用于卫生材料。 作为实现该目的的手段,本发明的水性液体吸收剂是以吸水性树脂粒子为必须成分的水性液体吸收剂,其中吸水性树脂粒子是通过 包括聚合水溶性烯键式不饱和单体并在其内部具有交联结构的步骤; 吸水率(FSR)为0.2g / g / s以上,吸水容量(CRC)为5〜25g / g,盐水流动电导率(SFC)不为 小于400×10-7 cm3·s / g,湿气孔率不小于20%。