Positive toners containing alkyl picolinium compounds
AssigneeXerox Corporation
InventorsChin H. Lu, Peter F. Erhardt
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Abstract
Disclosed are positive toners comprised of a toner resin, a colorant, or pigment, and an alkyl picolinium compound selected from the group consisting of those represented by the following formula: ##STR1## wherein A is an anion which in a preferred embodiment is a halide such as chloride, bromide, or iodide, sulphate, sulphonate, phosphate and nitrate, and R is a hydrocarbon radical containing from 8 to 22 carbon atoms and preferably from about 12 to 18 carbon atoms. These toners when combined with carrier materials can be used as developers in electrophotographic systems.
Claims4
A dry developer composition comprised of 92 percent by weight of a styrene butadiene copolymer resin or a styrene/n-butyl methacrylate copolymer resin, 2 percent by weight of cetyl picolinium chloride or cetyl picolinium bromide 6 percent by weight of carbon black, and a carrier material containing a steel core which is coated with a polyvinylidene fluoride resin.
A developer composition comprised of 88 percent by weight of a polystyrene resin, 2 percent by weight of cetyl alpha picolinium chloride, 10 percent by weight of carbon black, and a carrier containing a steel core coated with a perfluoroalkoxy fluoropolymer.
Dependencies are inferred from the claim text.