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    • 2. 发明授权
    • Production of toner through polymerization
    • 通过聚合生产调色剂
    • US4789617A
    • 1988-12-06
    • US947094
    • 1986-12-29
    • Kozo AraharaToshikazu OhnishiHiroshi Fukumoto
    • Kozo AraharaToshikazu OhnishiHiroshi Fukumoto
    • G03G9/08G03G9/087C08F2/00
    • G03G9/08702G03G9/0806G03G9/08775G03G9/08779Y02P20/582
    • A toner suitable for developing electrostatic images is produced through a process comprising: dispersing a monomer composition comprising at least a polymerizable monomer and a colorant in an aqueous medium heated at a temperature higher than a polymerization temperature, thereby to form particles of the monomer composition; adjusting the aqueous medium to the polymerization temperature; and adding a substantially water-insoluble polymerization initiator to the aqueous medium containing the particles of the monomer composition dispersed therein and adjusted to the polymerization temperature, thereby to cause the polymerization of the polymerizable monomer. According to this process, a toner containing a large amount of a low-softening point compound and having good fixability at low pressure and/or low temperature can be produced while retaining good anti-blocking characteristic and fluidity.
    • 通过以下方法生产适于显影静电图像的调色剂,其包括:将包含至少可聚合单体和着色剂的单体组合物分散在加热到高于聚合温度的水介质中,从而形成单体组合物的颗粒; 将水介质调节至聚合温度; 并将基本上不溶于水的聚合引发剂加入到含有分散在其中的单体组合物的颗粒的水性介质中,并调节至聚合温度,从而引发可聚合单体的聚合。 根据该方法,可以制造含有大量低软化点化合物并且在低压和/或低温下具有良好定影性的调色剂,同时保持良好的抗粘连特性和流动性。