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    • 5. 发明申请
    • METHOD OF PREPARING TONER
    • 制备调色剂的方法
    • WO2009038404A2
    • 2009-03-26
    • PCT/KR2008/005584
    • 2008-09-19
    • SAMSUNG FINE CHEMICALS CO., LTD.YANG, Woo YoungKIM, Keon IlHWANG, Dae IlKIM, Il HyukPARK, Jae BumHWANG, Il SunHWANG, Jae KwangCHOI, Dae WoongKIM, Dong WonAHN, Duck Kyun
    • YANG, Woo YoungKIM, Keon IlHWANG, Dae IlKIM, Il HyukPARK, Jae BumHWANG, Il SunHWANG, Jae KwangCHOI, Dae WoongKIM, Dong WonAHN, Duck Kyun
    • G03G9/08
    • G03G9/0806G03G9/0819G03G9/0827
    • Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed. Unlike a conventional method of preparing a toner, wherein toner components are first dissolved in an organic solvent and then dispersed in an aqueous phase, the method prepares toner particles by forming a solvent emulsion and then adding toner components in the solvent emulsion and dissolving the toner components in the organic solvent dispersed in the solvent emulsion. By controlling an order of adding the toner components, it is easy to control a structure of the toner. Accordingly, a toner having a small volume average particle size, a narrow particle size distribution, an improved fixing property, and an improved storage stability at a high temperature is prepared. Also, it is easy to adjust toner surface charges by selectively using the pigment in a form of a master batch and encapsulating the pigment.
    • 提供一种调色剂的制备方法,该方法包括:通过搅拌包含极性介质,有机溶剂和表面活性剂的介质来制备溶剂乳液; 向所述溶剂乳液中添加包括树脂和颜料的调色剂组分; 从包括调色剂组分的溶剂乳液中除去有机溶剂; 并从除去有机溶剂的溶剂乳液中收集调色剂颗粒。 不同于调色剂的常规方法,其中调色剂组分首先溶解在有机溶剂中然后分散在水相中,该方法通过形成溶剂乳液制备调色剂颗粒,然后在调色剂中加入调色剂组分并溶解调色剂 分散在溶剂乳液中的有机溶剂中的组分。 通过控制添加调色剂组分的顺序,容易控制调色剂的结构。 因此,制备了具有体积平均粒径小,粒径分布窄,定影性能好,高温储存稳定性好的调色剂。 此外,通过选择性地使用母料形式的颜料并包封颜料,容易调节调色剂表面电荷。
    • 10. 发明申请
    • WATER BASED COATING MATERIALS AND MANUFACTURING METHOD THEREOF
    • 水基涂料及其制备方法
    • WO2007069800A1
    • 2007-06-21
    • PCT/KR2005/004686
    • 2005-12-30
    • SAMSUNG FINE CHEMICALS CO., LTDKIM, Il HyukBAEK, Hyon Ho
    • KIM, Il HyukBAEK, Hyon Ho
    • C03C17/28
    • C03C17/28C03C2218/355H01L29/78603H05K3/285
    • The present invention relates to a protective coating composition to minimize damage of a PCB substrate widely used in electronic devices and a bare glass, a basic material used for LCD and TFT. The protective coating composition is used for coating both sides of a bare glass or a PCB substrate. The bare glass or the PCB substrate coated with the composition is characterized by preventing impurity attachment during loading and transportation, reducing defection resulted from scratch, preventing the loss of power transfer capability of circuits, and reducing breakage caused by the film elimination process. In addition, removal method of the protective coating composition is characterized by dissolving the coating layers on both sides of a bare glass or a PCB substrate regardless of pH of a cleaner in cleaning step to remarkably reduce breakage or defection of a bare glass caused by eliminating a conventional protective film.
    • 本发明涉及一种保护涂料组合物,用于最大程度地减少广泛用于电子设备的PCB基板和裸露玻璃(用于LCD和TFT的基本材料)的损伤。 保护涂层组合物用于涂覆裸玻璃或PCB基板的两侧。 涂有组合物的裸露玻璃或PCB基板的特征在于防止在装载和运输过程中的杂质附着,减少由划痕引起的缺陷,防止电路的功率传递能力的损失,并减少由膜消除过程引起的断裂。 此外,保护性涂料组合物的除去方法的特征在于,在清洁步骤中,无论清洁剂的pH如何,将涂层溶解在裸玻璃或PCB基板的两侧,以显着减少由于消除而导致的裸露玻璃的断裂或脱落 常规保护膜。