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    • 2. 发明授权
    • Surface treatment method for water-absorbent resin
    • 吸水树脂的表面处理方法
    • US08975339B2
    • 2015-03-10
    • US12678856
    • 2008-10-08
    • Yoshiro MitsukamiTaku IwamuraMakoto Matsumoto
    • Yoshiro MitsukamiTaku IwamuraMakoto Matsumoto
    • C08J3/24C08F20/06C08F265/02
    • C08J3/245C08J2300/14
    • Provided is a surface treatment method for a water-absorbent resin having excellent production efficiency, absorption capacity against pressure, fluid permeability or the like. Provided is a method for the surface treatment of a water-absorbent resin which comprises a) a step for mixing 0.1 to 20 parts by weight of an acid group-containing radically polymerizable compound and 5 to 20 parts by weight of water, relative to 100 parts by weight of a water-absorbent resin; and b) a step for polymerizing the acid group-containing radically polymerizable compound, wherein neutralization ratio of the acid group-containing radically polymerizable compound is 0 to 60% by mol, and is lower than neutralization ratio of the water-absorbent resin.
    • 提供了具有优异的生产效率,对压力的吸收能力,流体渗透性等的吸水性树脂的表面处理方法。 本发明提供一种吸水性树脂的表面处理方法,该方法包括:a)将0.1〜20重量份含酸基的自由基聚合性化合物和5〜20重量份的水相对于100 吸水树脂重量份; 和b)使含酸基的自由基聚合性化合物的中和率为0〜60摩尔%,并且低于吸水性树脂的中和率的含有酸基的自由基聚合性化合物的工序。
    • 4. 发明授权
    • Pseudorandom number generating system, encryption system, and decryption system
    • 伪随机数生成系统,加密系统和解密系统
    • US08553880B2
    • 2013-10-08
    • US11920276
    • 2006-05-12
    • Makoto MatsumotoTakuji NishimuraMutsuo SaitoMariko Hagita
    • Makoto MatsumotoTakuji NishimuraMutsuo SaitoMariko Hagita
    • H04L9/00
    • H04L9/0662
    • The pseudorandom number generating system repeatedly performs simple transformation of a non-secure pseudorandom number sequence that may be generated quickly, and thus may quickly generate a highly secure pseudorandom number sequence having a long period. Furthermore, the encryption system and the decryption system do not generate a large encryption function difficult to be deciphered based on a shared key 122, but prepare multiple functions 126, which perform fast, different types of transformation, and select a combination of functions determined based on information of the shared key 122, and make the selected functions transform a text multiple times, thereby encrypt the text. Each of the functions is fast, and thus transformation by the entire combination is also fast. Furthermore, since the combination of functions and repetitive count can be changed, future improvement in specification is easy. Moreover, security is high since which functions are applied in what order is unknown.
    • 伪随机数生成系统重复执行可以快速生成的非安全伪随机数序列的简单变换,从而可以快速生成具有长周期的高度安全的伪随机数序列。 此外,加密系统和解密系统不产生基于共享密钥122难以被解密的大型加密功能,而是准备执行快速,不同类型的转换的多个功能126,并且选择基于确定的功能的组合 在共享密钥122的信息上,并且使所选择的功能多次转换文本,从而加密文本。 每个功能都很快,因此整个组合的转换也很快。 此外,由于功能和重复计数的组合可以改变,因此规格的未来改进是容易的。 此外,安全性很高,因为哪些功能以未知的顺序应用。