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    • 7. 发明授权
    • Positively charged colored toner compositions
    • 带正电的彩色调色剂组合物
    • US4604338A
    • 1986-08-05
    • US764024
    • 1985-08-09
    • Robert J. GruberRaymond A. Yourd, IIIRonald J. Koch
    • Robert J. GruberRaymond A. Yourd, IIIRonald J. Koch
    • G03G9/097G03G9/08G03G9/10
    • G03G9/09758
    • Disclosed is an improved positively charged dry electrostatic colored toner composition comprised of first resin particles; crosslinked second resin particles; colored pigment particles excluding black; and selected from the group consisting of cyan, magenta, yellow, blue, red, and brown; a low molecular weight wax; and a charge enhancing additive selected from the group consisting of alkyl pyridinium halides, organic sulfonate compositions and organic sulfate compositions of the following formulas: ##STR1## wherein R is a hydrocarbon group containing from about 8 to about 22 carbon atoms, and A is an anion; ##STR2## wherein R.sub.1 is an alkyl group of from about 12 carbon atoms to about 22 carbon atoms, R.sub.2 and R.sub.3 are independently selected from alkyl groups containing from about 1 carbon atom to about 5 carbon atoms, R.sub.4 is an alkylene group of from about 1 carbon atom to about 5 carbon atoms, R.sub.5 is a tolyl group or an alkyl group of from about 1 carbon atom to about 3 carbon atoms, and n is the number 3 or 4; and distearyl dimethyl ammonium methyl sulfate, behenyl trimethyl ammonium methyl sulfate, and distearyl methyl ethyl ammonium ethyl sulfate.
    • 公开了由第一树脂颗粒组成的改进的带正电荷的干静电着色调色剂组合物; 交联的第二树脂颗粒; 彩色颜料颗粒不含黑色; 并选自青色,品红色,黄色,蓝色,红色和棕色; 低分子量蜡; 以及选自下列式的烷基吡啶鎓卤化物,有机磺酸盐组合物和有机硫酸盐组合物的电荷增强添加剂:其中R是含约8至约22个碳原子的烃基,A 是阴离子; II。 其中R1是约12个碳原子至约22个碳原子的烷基,R2和R3独立地选自含有约1个碳原子至约5个碳原子的烷基,R4是约1个碳原子的亚烷基 至约5个碳原子,R 5为甲苯基或约1个碳原子至约3个碳原子的烷基,n为3或4; 和二硬脂基二甲基甲基硫酸铵,二十二烷基三甲基甲基硫酸铵和二硬脂基甲基乙基硫酸乙基铵。