申请人:XEROX CORPORATION
公开号:EP0087988A2
公开(公告)日:1983-09-07
This invention is directed to positively charged developer compositions and toner compositions, the toner composition being comprised of resin particles, pigment particles, and from about 0.1 to about 10 percent by weight of the toner particles of a polymeric charge enhancing additive of the following formulae:
and
wherein a and b are percentage numbers equaling 100, a being from about 20 weight percent to about 99 weight percent, and b being from about 80 weight percent to about 1 weight percent, n is a repeating number ranging from about 3 to about 300, Z is an oxygen atom, c is the number zero or 1, Y is an alkyl or aromatic radical, Z' is selected from the group consisting of aliphatic, aromatic, and heterocyclic radicals, R,, R2, R3 and R4 are independently selected from alkyl radicals containing from about 1 to about 22 carbon atoms, X is an anion, a' is a number of from about 50 to about 500, R1' is hydrogen or an alkyl radical containing from 1 to abut 22 carbon atoms, as well as methods of developing electrostatographic images utilizing such compositions.
本发明适用于带正电荷的显影液组合物和墨粉组合物,墨粉组合物由树脂颗粒、颜料颗粒和按重量计占墨粉颗粒约 0.1%至约 10%的下式聚合物电荷增强添加剂组成:
和
其中 a 和 b 是等于 100 的百分数,a 是约 20% 至约 99% 的重量百分比,b 是约 80% 至约 1% 的重量百分比,n 是约 3 至约 300 的重复数,Z 是氧原子,c 是数字 0 或 1,Y 是烷基或芳香基,Z' 选自由脂肪族、芳香族和杂环基组成的组、R、R2、R3 和 R4 独立地选自含有约 1 至约 22 个碳原子的烷基,X 是阴离子,a'是约 50 至约 500 的数字,R1'是氢或含有 1 至约 22 个碳原子的烷基,以及利用这种组合物显影的方法。