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    • 3. 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。
    • 4. 发明授权
    • Method for production of porous material
    • 多孔材料的生产方法
    • US06822010B2
    • 2004-11-23
    • US10474950
    • 2003-10-14
    • Hirotama FujimaruHiroki InoueKenji KadonagaKinya Nagasuna
    • Hirotama FujimaruHiroki InoueKenji KadonagaKinya Nagasuna
    • C08J928
    • C08J9/28C08F2/32C08J2201/028
    • A method for producing a porous material excelling in stability of preservation is produced. A method for the production of a porous material comprising a step for obtaining a porous polymer by polymerizing an HIPE containing a polymerizable monomer is disclosed, which method comprises a step for adding a compound capable of reacting with a polymerization initiator and/or a compound capable of reacting with an unsaturated double bond to said emulsion, said porous polymer and/or said porous material having a conversion of not less than 70%. According to this invention, it is made possible to produce a porous material excelling in stability in storage and to decrease the polymerization initiator and the residual monomer very simply.
    • 制造出具有良好的保存稳定性的多孔材料的制造方法。 公开了一种生产多孔材料的方法,其包括通过聚合含有可聚合单体的HIPE获得多孔聚合物的步骤,该方法包括添加能够与聚合引发剂和/或化合物反应的化合物的步骤 与所述乳液的不饱和双键反应,所述多孔聚合物和/或所述多孔材料具有不小于70%的转化率。 根据本发明,可以制备出具有良好的储存稳定性的多孔材料,并且非常简单地降低聚合引发剂和残留单体。
    • 6. 发明授权
    • Water-absorbent agent and method for manufacturing the same
    • 吸水剂及其制造方法
    • US06187872B1
    • 2001-02-13
    • US09051313
    • 1998-04-06
    • Toru YanaseKazuki KimuraShin-ichi FujinoKinya NagasunaKunihiko IshizakiHirotama FujimaruNobuyuki Harada
    • Toru YanaseKazuki KimuraShin-ichi FujinoKinya NagasunaKunihiko IshizakiHirotama FujimaruNobuyuki Harada
    • C08F812
    • A61L15/60B01J20/26C08F8/00C08F8/44C08F2800/20C08F2810/20C08F220/06
    • A hydrogel polymer obtained by polymerizing a monomer component including acrylic acid (salt) is post-neutralized so that each of polymer particles derived from a polymer produced by neutralizing the hydrogel polymer has an allowable neutralization ratio. The polymer as obtained by neutralizing the hydrogel polymer is reacted with a crosslinking agent reactive to a functional group of the polymer. The allowable neutralization ratio, for example, is a neutralization ratio which is not lower, by not less than 20 mole percent, or more than, at least 55 mole percent, than an average neutralization ratio of a mass of the polymer particles, and the post-neutralization is carried out so that a number of polymer particles having a non-allowable neutralization ratio outside the allowable neutralization range is not more than 10 in 200 polymer particles, thus obtaining a water-absorbent agent having high absorbency under no applied pressure and high pressure wherein the amount of water soluble component is lower compared with the conventional water-absorbent agent and a change in pH of a swollen gel is small.
    • 通过使包含丙烯酸(盐)的单体组分聚合而获得的水凝胶聚合物被后中和,使得通过中和水凝胶聚合物产生的聚合物衍生的各聚合物颗粒具有允许的中和比。 通过中和水凝胶聚合物获得的聚合物与与聚合物的官能团反应的交联剂反应。 例如,容许的中和比例是中和比,其比不到聚合物颗粒的质量的平均中和比不低于20摩尔%,或至多55摩尔%,而且 进行中和后,使得在200个聚合物粒子中,许多中和比例不超过允许中和比例的聚合物颗粒数不超过10个,从而获得在无施加压力下具有高吸收性的吸水剂, 其中水溶性成分的量与常规吸水剂相比较低,并且溶胀凝胶的pH变化很小。