Negatively chargeable toner for developing latent electrostatic

Details Negatively chargeable toner for developing latent electrostatic Negatively chargeable toner for developing latent electrostatic

1990-10-31

1992-12-01

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430109, G03G 900

Patent

active

051680289

ABSTRACT:
A negatively chargeable toner for developing latent electrostatic images comprising a binder resin, a coloring agent and a charge controlling agent which comprises a fluorine-containing quaternary ammonium salt of formula (I): ##STR1## wherein X represents --SO.sub.2 or --CO; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms or an aryl group; m is an integer of 1 to 5; and n is an integer of 1 to 10.

REFERENCES:
patent: 3723512 (1973-03-01), Niederprum et al.
patent: 4590141 (1986-05-01), Aoki et al.
patent: 4939059 (1990-07-01), Kawabe et al.

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