Toner compositions containing pyridinium tetrafluoroborates

Details Toner compositions containing pyridinium tetrafluoroborates Toner compositions containing pyridinium tetrafluoroborates

G - Physics

03

G

314/36, 96/52

G03G 9/08 (2006.01) G03G 9/097 (2006.01)

Patent

CA 1219760

ABSTRACT This invention relates to improved positively charged toner compositions for use in developing electrostatic images contained in electrostatographic imaging devices wherein fusing is accomplished with a fuser roll fabricated from lead oxide and a vinylidene fluoride hexafluoropropylene copolymer, which composition is comprised of resin particles, pigment particles, and as the charge enhancing additive present in an amount of from about 0.1 percent by weight to about 10 percent by weight, a pyridinium tetrafluoroborate of the following formula: Image wherein R1 is an alkyl group containing from about 1 carbon atom to about 22 carbon atoms, and R2 is an alkyl group containing from about 1 carbon atom to about 8 carbon atoms, or a halogen, and n is zero or 1.

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