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    • 2. 发明申请
    • METHOD OF PRODUCING CORE/SHELL COMPOSITE NANO-PARTICLES
    • 生产核/壳复合纳米颗粒的方法
    • US20100215851A1
    • 2010-08-26
    • US12596994
    • 2007-04-25
    • Tetsuya ShojiNaoki NakamuraAkira KatoShinpei YamamotoMikio TakanoTeruo Ono
    • Tetsuya ShojiNaoki NakamuraAkira KatoShinpei YamamotoMikio TakanoTeruo Ono
    • B05D7/00
    • B22F1/025B22F1/0018B22F9/24B22F9/305B82Y30/00
    • A method of producing core/shell composite nano-particles exhibiting superior characteristics, by using as cores nano-particles heat treated in advance so as to give them a specific crystal structure in a state using a barrier layer to prevent sintering and forming shells on their surface, which eliminates hindrances to the shell forming reaction due to the phase transfer catalyst or other strongly sticky dispersant, is provided. A method of producing core/shell composite nano-particles comprising nano-sized core particles covered by shells, the method comprising dispersing core particles heat treated in advance to give them a crystal structure expressing the necessary characteristics in a first organic solvent by a first dispersant to prepare a first solution, adding a polar solvent to peel off the first dispersant from the core particles and making the nano-particles agglomerate to recover them, making the recovered core particles disperse in a second organic solvent by a second dispersant to form a second solution, and adding a precursor of the shells to the second solution and forming shells on the surfaces of the core particles.
    • 通过使用预先热处理的核心纳米粒子来制造具有优异特性的核/壳复合纳米粒子的方法,以便在使用阻挡层的状态下给予其特定的晶体结构,以防止烧结和形成壳体 表面,其消除了由于相转移催化剂或其它强粘性分散剂而导致的壳形成反应的障碍。 一种制造核壳复合纳米颗粒的方法,其包括由壳覆盖的纳米尺寸的核心颗粒,该方法包括将预先热处理的芯颗粒分散在第一有机溶剂中,通过第一分散剂给予它们表达必要特性的晶体结构 制备第一溶液,加入极性溶剂以从芯颗粒上剥离第一分散剂并使纳米颗粒凝聚回收,使回收的芯颗粒通过第二分散剂分散在第二有机溶剂中以形成第二溶剂 溶液,并将壳的前体添加到第二溶液中并在芯颗粒的表面上形成壳。
    • 6. 发明授权
    • Method for determining sodium concentration in alcohol
    • 酒精中钠浓度的测定方法
    • US6030839A
    • 2000-02-29
    • US36686
    • 1998-03-09
    • Shinpei YamamotoSatoru NakaiToshio Yatabe
    • Shinpei YamamotoSatoru NakaiToshio Yatabe
    • G01N27/06G21D1/02G21F9/06G01N33/20
    • G01N27/06
    • Preparations are made of a characteristic curve of conductivity showing the relationship between sodium concentration in alcohol and conductivity of alcohol as observed at a predetermined temperature and a temperature correction curve showing the change in conductivity per unit degree centigrade of alcohol temperature versus; sodium concentration in alcohol; the corrected conductivity of a sample alcohol is determined by measuring the conductivity and temperature of the sample alcohol simultaneously and subjecting the measured conductivity to temperature correction according to the above temperature correction curve; and then the sodium concentration in the sample alcohol is determined on the basis of the corrected conductivity thus obtained. Thus, the change in sodium concentration in alcohol can be measured and monitored continuously and accurately.
    • 制备电导率的特性曲线,其显示在预定温度下观察到的酒精中钠浓度和醇电导率之间的关系,以及显示酒精温度相对于每单位摄氏度的电导率变化的温度校正曲线。 酒精中的钠浓度; 通过同时测量样品醇的电导率和温度并根据上述温度校正曲线对所测量的导电率进行温度校正来确定样品醇的校正电导率; 然后根据由此获得的校正电导率确定样品醇中的钠浓度。 因此,可以连续准确地测量和监测酒精中钠浓度的变化。