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    • 5. 发明授权
    • Water-absorbing agent
    • 吸水剂
    • US07638570B2
    • 2009-12-29
    • US10544337
    • 2004-02-02
    • Kazushi ToriiYoshiro MitsukamiMotohiro ImuraTaku Iwamura
    • Kazushi ToriiYoshiro MitsukamiMotohiro ImuraTaku Iwamura
    • C08L31/02A61L15/60
    • C08J3/245A61L15/60Y10T428/2982
    • There is disclosed a water-absorbing agent which combines both performances of the capillary suction force and the liquid permeability. This water-absorbing agent is a particulate water-absorbing agent comprising water-absorbent resin particles (α) and a liquid-permeability-enhancing agent (β), wherein the water-absorbent resin particles (α) are surface-crosslink-treated particles of a crosslinked polymer of a monomer including acrylic acid and/or its salt; with the water-absorbing agent being characterized in that the particulate water-absorbing agent has: a mass-average particle diameter (D50) in the range of 234 to 394 gm, a logarithmic standard deviation (σζ) of a particle diameter distribution in the range of 0.25 to 0.45, an absorption capacity without load (CRC) of not less than 15 g/g, and a water-extractable component content of not higher than 15 mass %; and further a liquid-permeability-enhancing agent (β) content in the range of 0.01 to 5 mass parts per 100 mass parts of the water-absorbent resin particles (α).
    • 公开了吸水剂,其结合了毛细吸力和液体渗透性的两种性能。 该吸水剂是含有吸水性树脂颗粒(α)和透液性增强剂(β)的颗粒状吸水剂,其中吸水性树脂颗粒(α)是表面交联处理颗粒 的包含丙烯酸和/或其盐的单体的交联聚合物; 吸水剂的特征在于,颗粒状吸水剂的质量平均粒径(D50)在234〜394gm的范围内,粒径分布的对数标准偏差(sigmazeta)在 范围为0.25〜0.45,无负载吸收容量(CRC)为15g / g以上,水可提取成分含量为15质量%以下; 并且每100质量份吸水性树脂颗粒(α)还含有0.01至5质量份范围内的透液性增强剂(β)含量。
    • 6. 发明申请
    • Walter-absorbing agent
    • 瓦尔特吸收剂
    • US20060204755A1
    • 2006-09-14
    • US10544337
    • 2004-02-02
    • Kazushi ToriiYoshiro MitsukamiMotohiro ImuraTaku Iwamura
    • Kazushi ToriiYoshiro MitsukamiMotohiro ImuraTaku Iwamura
    • B32B5/16
    • C08J3/245A61L15/60Y10T428/2982
    • There is disclosed a water-absorbing agent which combines both performances of the capillary suction force and the liquid permeability. This water-absorbing agent is a particulate water-absorbing agent comprising water-absorbent resin particles (α) and a liquid-permeability-enhancing agent (β), wherein the water-absorbent resin particles (α) are surface-crosslink-treated particles of a crosslinked polymer of a monomer including acrylic acid and/or its salt; with the water-absorbing agent being characterized in that the particulate water-absorbing agent has: a mass-average particle diameter (D50) in the range of 234 to 394 gm, a logarithmic standard deviation (σξY) of a particle diameter distribution in the range of 0.25 to 0.45, an absorption capacity without load (CRC) of not less than 15 g/g, and a water-extractable component content of not higher than 15 mass %; and further a liquid-permeability-enhancing agent (β) content in the range of 0.01 to 5 mass parts per 100 mass parts of the water-absorbent resin particles (α).
    • 公开了吸水剂,其结合了毛细吸力和液体渗透性的两种性能。 该吸水剂是含有吸水性树脂颗粒(α)和透液性增强剂(β)的颗粒状吸水剂,其中吸水性树脂颗粒(α)是表面交联处理颗粒 的包含丙烯酸和/或其盐的单体的交联聚合物; 吸水剂的特征在于,颗粒状吸水剂的质量平均粒径(D50)在234〜394gm的范围内,粒径分布的对数标准偏差(sigmaxiY)在 范围为0.25〜0.45,无负载吸收容量(CRC)为15g / g以上,水可提取成分含量为15质量%以下; 并且每100质量份吸水性树脂颗粒(α)还含有0.01至5质量份范围内的透液性增强剂(β)含量。
    • 8. 发明授权
    • Water absorbent and producing method of same
    • 吸水剂及其制备方法
    • US07803880B2
    • 2010-09-28
    • US10572565
    • 2004-09-17
    • Kazushi ToriiHirofumi ShibataTaku IwamuraYoshio IrieYorimichi DairokuYoshiro MitsukamiSayaka Machida
    • Kazushi ToriiHirofumi ShibataTaku IwamuraYoshio IrieYorimichi DairokuYoshiro MitsukamiSayaka Machida
    • C08F20/02
    • C08J3/245A61L15/60B01J20/261B01J2220/68C08F20/06C08J2333/00
    • An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.
    • 本发明的目的是提供一种具有优异凝胶性能的吸水剂,并且当用于诸如纸尿布的卫生/卫生材料的吸水材料时显示出优异的性能。 此外,本发明的另一个目的是提供一种安全且透液性优异的吸水剂,其中用于提高液体渗透性的液体渗透性改进剂的量减少。 吸水剂由具有高交联度,高液体保持性和高凝胶强度(凝胶层的溶胀压力为35kDyne / cm2)的特定聚合方法制成的吸水性树脂 或者更多)。 该吸水剂被进一步处理以具有特定的粒度分布(其颗粒的95重量%或更多小于850度,但不小于106度,对数标准偏差(ƒðƒÄ)在0.25至0.45的范围内),然后 表面交联。 之后,加入液体渗透性改进剂。