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    • 10. 发明授权
    • Starve fed emulsion polymerization process
    • 食用乳液聚合工艺
    • US5444140A
    • 1995-08-22
    • US264205
    • 1994-06-22
    • Anthony J. PaineFatima M. PontesKaren A. Moffat
    • Anthony J. PaineFatima M. PontesKaren A. Moffat
    • C08F2/00C08F2/24C08F2/42C08F12/08
    • C08F2/00
    • Simultaneous control of the molecular weight and the molecular weight distribution in the production of toner resins can be accomplished by using a starve fed emulsion polymerization process, which includes: selecting a desired molecular weight and molecular weight distribution of the polymer resin; determining a starve fed fraction to achieve the desired molecular weight and molecular weight distribution; and charging a reaction vessel with a chain transfer agent and a first monomer emulsion, and polymerizing monomer in the first monomer emulsion while simultaneously adding to the reaction vessel additional monomer, in the form of a second monomer emulsion, and additional chain transfer agent. The resins thus produced may be used in dry toners, liquid developers and inks suitable, for example, for ink jet applications.
    • 调色剂树脂生产中分子量和分子量分布的同时控制可以通过使用饥饿进料乳液聚合方法来实现,其包括:选择聚合物树脂的所需分子量和分子量分布; 确定饥饿饲料级分以达到所需的分子量和分子量分布; 以及将反应容器用链转移剂和第一单体乳液装入,并在第一单体乳液中聚合单体,同时向反应容器中加入第二单体乳液和另外的链转移剂形式的另外的单体。 如此生产的树脂可用于适用于例如喷墨应用的干燥调色剂,液体显影剂和油墨中。