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    • 4. 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。
    • 10. 发明授权
    • Photoconductive imaging members
    • 光导成像构件
    • US06864026B2
    • 2005-03-08
    • US10390057
    • 2003-03-14
    • Yu QiNan-Xing HuH. Bruce GoodbrandPaul F. SmithC. Geoffrey Allen
    • Yu QiNan-Xing HuH. Bruce GoodbrandPaul F. SmithC. Geoffrey Allen
    • G03G5/05G03G5/06G03G5/047
    • G03G5/0596G03G5/0564G03G5/0592G03G5/0696
    • A photoconductive imaging member comprised of an optional supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and wherein said charge transport layer comprises a crosslinked polycarbonate component containing a repeating segment of the formula wherein R1 is selected from the group consisting of hydrogen, alkyl with from about 1 to about 15 carbons optionally further containing one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, silicon, and phosphorus, or aryl; R2 represents a divalent linkage; Ar3 and Ar4 each independently represent aromatic groups; R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, and aryl; and optionally wherein R3 and R4 form a combined ring structure; and wherein x and y represent the mole fractions of the repeating segments.
    • 一种感光成像构件,包括任选的支撑基底,任选的阻挡层,光生代层和电荷输送层,并且其中所述电荷输送层包含含有所述糠醛的重复区段的交联聚碳酸酯组分R1选自 由氢组成,具有约1至约15个碳原子的烷基,任选地还含有一个或多个选自氮,氧,硫,硅和磷的杂原子或芳基; R2表示二价键; Ar 3和Ar 4各自独立地表示芳族基团; R3和R4独立地选自氢,烷基和芳基; 并且任选地,其中R 3和R 4形成组合的环结构; 并且其中x和y表示重复链段的摩尔分数。