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    • 3. 发明授权
    • Processes for preparing phase change inks
    • 制备相变油墨的方法
    • US07186762B2
    • 2007-03-06
    • US10721851
    • 2003-11-25
    • Raymond W. WongHadi K. MahabadiPaul F. SmithSheau V. KaoMichael S. HawkinsCaroline M. Turek
    • Raymond W. WongHadi K. MahabadiPaul F. SmithSheau V. KaoMichael S. HawkinsCaroline M. Turek
    • C09D11/02C09D11/10C08L39/04B29C47/00B29C47/38
    • C09D11/34B29C47/6087
    • Disclosed is a process for preparing a phase change ink composition which comprises (a) a phase change ink carrier, said carrier comprising at least one nonpolar component and at least one polar component, and (b) pigment particles, said process comprising (1) selecting at least one of the polar carrier components to be a pigment particle dispersant; (2) admixing the pigment particles with the dispersant; (3) extruding the mixture of pigment particles and dispersant in an extruder at a temperature that is at or above about the peak crystallization temperature of the dispersant and below about the peak melting temperature of the dispersant, thereby forming a pigment dispersion; (4) subsequent to extrusion of the pigment dispersion, adding to the pigment dispersion any remaining polar components and the nonpolar component; and (5) subjecting the resulting mixture of pigment dispersion, polar component, and nonpolar component to high shear mixing to form an ink.
    • 公开了一种制备相变油墨组合物的方法,其包括(a)相变油墨载体,所述载体包含至少一种非极性组分和至少一种极性组分,和(b)颜料颗粒,所述方法包括(1) 选择至少一种极性载体成分为颜料颗粒分散剂; (2)将颜料颗粒与分散剂混合; (3)将挤出机中的颜料颗粒和分散剂的混合物在分散剂的峰值结晶温度以下并且低于分散剂的峰值熔融温度的温度下挤出,从而形成颜料分散体; (4)在颜料分散体挤出之后,向颜料分散体中加入剩余的极性组分和非极性组分; 和(5)将颜料分散体,极性组分和非极性组分的所得混合物进行高剪切混合以形成油墨。