| 摘要 |
New electrostatographic toners and developers are provided containing charge-control agents comprising quaternary phosphonium trihalocuprate salts having the structure: <CHEM> wherein R is selected from an unsubstituted alkyl group having from 1 to 24 carbon atoms; a substituted alkyl group having from 1 to 24 carbon atoms substituted with one or more hydroxy-, carboxy-, alkoxy-, carboalkoxy-, acyloxy-, nitro-, cyano-, keto- or halo-groups; a cycloalkyl group having from 3 to 7 carbon atoms; an alkaryl group having from 1 to 20 carbon atoms in the alkyl group and 6 to 14 carbon atoms in the aryl group; an aralkyl group having from 1 to 4 carbon atoms in the alkyl group and 6 to 14 carbon atoms in the aryl group wherein the aryl group may be unsubstituted or substituted with one or more alkyl-, hydroxy, carboxy-, alkoxy-, carboalkoxy-, acyloxy-, amino-, nitro-, cyano-, keto- or halo-groups; phenyl or substituted phenyl; R<1>, R<2> and R<3>, which can be the same or different, are independently selected from hydrogen; an alkyl group having from 1 to 24 carbon atoms; hydroxy-; carboxy-alkoxy-; carboalkoxy-; acyloxy-; amino-; nitro-; cyano-; keto-; or halo-groups; and X, which can be the same or different, is independently selected from fluorine, chlorine, bromine or iodine. |
