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    • 9. 发明授权
    • Method for production of porous cross-linked poymer
    • 多孔交联聚合物的生产方法
    • US06395792B1
    • 2002-05-28
    • US09689350
    • 2000-10-12
    • Kinya NagasunaHirotama FujimaruKenji KadonagaKozo NogiKatsuhiko SakamotoMasazumi SasabeKenji Minami
    • Kinya NagasunaHirotama FujimaruKenji KadonagaKozo NogiKatsuhiko SakamotoMasazumi SasabeKenji Minami
    • C08J928
    • C08J9/283C08F2/32C08J2201/028
    • 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.
    • 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。
    • 10. 发明申请
    • Method for producing water absorbent resin
    • 吸水树脂的制造方法
    • US20110319518A1
    • 2011-12-29
    • US13254573
    • 2010-03-04
    • Kenji KadonagaKenji TadaMasazumi SasabeSeiji Kato
    • Kenji KadonagaKenji TadaMasazumi SasabeSeiji Kato
    • C08F301/00C08F2/46
    • C08J3/245B01F7/00466B01F7/169C08F20/06C08F220/06C08J2333/02
    • The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.
    • 本发明是一种吸水性树脂的制造方法,其为表面交联型吸水性树脂粒子的制造方法,该方法包括以下连续步骤:(a)将表面交联剂和水加入到 混合器中的颗粒状吸水性树脂; 和(b)通过加热或活性能量射线照射将从混合器中取出的所得吸水性树脂混合物与表面交联剂反应在反应器中,使用水蒸气作为混合器中加入的部分或全部水。 这使得可以提供一种制造吸水性树脂的方法,其中可以以低成本有效地以高生产率获得具有优异性能的表面交联吸水性树脂的方法。