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    • 1. 发明授权
    • Production method for water-absorbing resin composition
    • 吸水性树脂组合物的制造方法
    • US08703859B2
    • 2014-04-22
    • US11725496
    • 2007-03-20
    • Takahiro KitanoYorimichi DairokuSumio OkudaKozo NogiMotohiro Imura
    • Takahiro KitanoYorimichi DairokuSumio OkudaKozo NogiMotohiro Imura
    • C08K3/34C08L31/00C08L33/00C08L33/02
    • A61L15/22A61L15/60C08J3/203
    • The present invention provides a method for being capable of sufficiently exerting property improvement effect by the addition of additive particles other than water-absorbing resin to water-absorbing resin particles. The problems can be solved by using additive particles having over cohesive particles in an amount equal to or less than a predetermined amount, or by using the additive particles by crushing or classifying in advance, before mixing with water-absorbing resin particles. Alternatively, the problem can be solved by subjecting a mixture of the water-absorbing resin particles and the additive particles to pneumatic transportation processing, in particular, in a heated state, after mixing or at the same time as mixing. Further, the present invention provides a water-absorbing resin composition, which is capable of stably exerting high-level property. The problems can be solved by a water-absorbing resin composition, where the addition amount of additive particles and amount of free additive particles satisfies a predetermined relation.
    • 本发明提供一种能够通过向吸水性树脂粒子中添加吸水性树脂以外的添加剂粒子来充分发挥特性改善效果的方法。 可以通过使用具有等于或小于预定量的粘结颗粒的添加剂颗粒,或者通过在与吸水性树脂颗粒混合之前预先使用添加剂颗粒进行粉碎或分级来解决这些问题。 或者,可以通过使吸水性树脂颗粒和添加剂颗粒的混合物在混合之后或在混合的同时进行气动输送处理,特别是处于加热状态来解决问题。 此外,本发明提供能够稳定地施加高水平特性的吸水性树脂组合物。 这些问题可以通过吸水性树脂组合物来解决,其中添加剂颗粒的添加量和游离添加剂颗粒的量满足预定的关系。
    • 2. 发明申请
    • Production method for water-absorbing resin composition
    • 吸水性树脂组合物的制造方法
    • US20070225160A1
    • 2007-09-27
    • US11725496
    • 2007-03-20
    • Takahiro KitanoYorimichi DairokuSumio OkudaKozo NogiMotohiro Imura
    • Takahiro KitanoYorimichi DairokuSumio OkudaKozo NogiMotohiro Imura
    • B01J20/26
    • A61L15/22A61L15/60C08J3/203
    • The present invention provides a method for being capable of sufficiently exerting property improvement effect by the addition of additive particles other than water-absorbing resin to water-absorbing resin particles. The problems can be solved by using additive particles having over cohesive particles in an amount equal to or less than a predetermined amount, or by using the additive particles by crushing or classifying in advance, before mixing with water-absorbing resin particles. Alternatively, the problem can be solved by subjecting a mixture of the water-absorbing resin particles and the additive particles to pneumatic transportation processing, in particular, in a heated state, after mixing or at the same time as mixing. Further, the present invention provides a water-absorbing resin composition, which is capable of stably exerting high-level property. The problems can be solved by a water-absorbing resin composition, where the addition amount of additive particles and amount of free additive particles satisfies a predetermined relation.
    • 本发明提供一种能够通过向吸水性树脂粒子中添加吸水性树脂以外的添加剂粒子来充分发挥特性改善效果的方法。 这些问题可以通过使用具有等于或小于预定量的粘结颗粒的添加剂颗粒,或者通过在与吸水性树脂颗粒混合之前预先使用添加剂颗粒进行粉碎或分级来解决。 或者,可以通过使吸水性树脂颗粒和添加剂颗粒的混合物在混合之后或在混合的同时进行气动输送处理,特别是处于加热状态来解决问题。 此外,本发明提供能够稳定地施加高水平特性的吸水性树脂组合物。 这些问题可以通过吸水性树脂组合物来解决,其中添加剂颗粒的添加量和游离添加剂颗粒的量满足预定的关系。
    • 3. 发明申请
    • POLYACRYLIC ACID (SALT)-TYPE WATER ABSORBENT RESIN AND METHOD FOR PRODUCING OF SAME
    • 聚丙烯酸(盐)型吸水树脂及其制造方法
    • US20120157625A1
    • 2012-06-21
    • US13392639
    • 2010-08-27
    • Takahiro KitanoKozo NogiKunihiko Ishizaki
    • Takahiro KitanoKozo NogiKunihiko Ishizaki
    • C08F2/01C08F20/06
    • A61L15/24A61L15/60C08F120/06C08F220/06C08J3/24C08J3/245C08J2300/14C08J2333/02C08L33/08C08F2222/1013
    • Disclosed is a method for producing a water absorbent resin, by which a surface-crosslinked water absorbent resin having excellent physical properties can be efficiently obtained at low cost, while assuring high productivity. When the production scale is increased to a continuous production at 1 t/hr or more, the physical properties are improved and stabilized (for example, standard deviation of the physical properties is reduced) by a surface-crosslinking treatment, and the absorption against pressure (AAP) and liquid permeability (SFC) are further improved. Specifically disclosed is a method for producing a water absorbent resin, which is characterized in that the stirring shaft of the continuous mixing apparatus for the surface-crosslinking agent is heated during the mixing step of the surface-crosslinking agent or that the continuous mixing apparatus for the surface-crosslinking agent is operated at a pressure that is reduced relative to the ambient pressure and a gas flow is passed through the mixing apparatus during the mixing of the surface-crosslinking agent so that the gas flow in the mixing apparatus is 40° C. or more (when defined with respect to the gas temperature at the exit).
    • 公开了一种生产吸水性树脂的方法,通过该方法可以以低成本有效地获得具有优异物理性能的表面交联吸水性树脂,同时确保高生产率。 当生产规模增加到1t / hr以上的连续生产时,通过表面交联处理改善和稳定物理性能(例如物理性能的标准偏差),并且抗压力 (AAP)和液体渗透性(SFC)进一步提高。 具体公开了一种吸水性树脂的制造方法,其特征在于,表面交联剂的连续混合装置的搅拌轴在表面交联剂的混合工序中被加热, 表面交联剂在相对于环境压力降低的压力下操作,并且在混合表面交联剂期间使气流通过混合装置,使得混合装置中的气流为40℃ 或更多(当相对于出口处的气体温度定义时)。
    • 5. 发明授权
    • Polyacrylic acid (salt)-type water absorbent resin and method for producing of same
    • 聚丙烯酸(盐)型吸水性树脂及其制造方法
    • US08907021B2
    • 2014-12-09
    • US13392639
    • 2010-08-27
    • Takahiro KitanoKozo NogiKunihiko Ishizaki
    • Takahiro KitanoKozo NogiKunihiko Ishizaki
    • C08F2/01
    • A61L15/24A61L15/60C08F120/06C08F220/06C08J3/24C08J3/245C08J2300/14C08J2333/02C08L33/08C08F2222/1013
    • Disclosed is a method for producing a water absorbent resin, by which a surface-crosslinked water absorbent resin having excellent physical properties can be efficiently obtained at low cost, while assuring high productivity. When the production scale is increased to a continuous production at 1 t/hr or more, the physical properties are improved and stabilized (for example, standard deviation of the physical properties is reduced) by a surface-crosslinking treatment, and the absorption against pressure (AAP) and liquid permeability (SFC) are further improved. Specifically disclosed is a method for producing a water absorbent resin, which is characterized in that the stirring shaft of the continuous mixing apparatus for the surface-crosslinking agent is heated during the mixing step of the surface-crosslinking agent or that the continuous mixing apparatus for the surface-crosslinking agent is operated at a pressure that is reduced relative to the ambient pressure and a gas flow is passed through the mixing apparatus during the mixing of the surface-crosslinking agent so that the gas flow in the mixing apparatus is 40° C. or more (when defined with respect to the gas temperature at the exit).
    • 公开了一种生产吸水性树脂的方法,通过该方法可以以低成本有效地获得具有优异物理性能的表面交联吸水性树脂,同时确保高生产率。 当生产规模增加到1t / hr以上的连续生产时,通过表面交联处理改善和稳定物理性能(例如物理性能的标准偏差),并且抗压力 (AAP)和液体渗透性(SFC)进一步提高。 具体公开了一种吸水性树脂的制造方法,其特征在于,表面交联剂的连续混合装置的搅拌轴在表面交联剂的混合工序中被加热, 表面交联剂在相对于环境压力降低的压力下操作,并且在混合表面交联剂期间气流通过混合装置,使得混合装置中的气流为40℃ 或更多(当相对于出口处的气体温度定义时)。