Electrostatic image developing toner

Details Electrostatic image developing toner Electrostatic image developing toner

1996-11-20

1997-12-02

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

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

G03G 9097

Patent

active

056934459

ABSTRACT:
Disclosed herein is an electrostatic image developing toner, which comprises a binder resin, a colorant and a charge control agent, wherein the charge control agent is a hydrophobicity-imparted product of a xanthene-type dye, which is represented by the formula ##STR1## wherein R.sub.1, R.sub.3, R.sub.5, R.sub.6 and R.sub.7 are independently hydrogen or a lower alkyl group, R.sub.2 and R.sub.4 are independently a lower alkyl group, and A is a group represented by the formula ##STR2## in which R.sub.8 is a C.sub.8-37 alkyl group, or the formula ##STR3## in which R.sub.9 is a C.sub.1-37 alkyl group, and X is O, S, NH or CH.sub.2, and is contained in a proportion of 0.05 to 10 parts by weight per 100 parts by weight of the binder resin.

REFERENCES:
patent: 5244764 (1993-09-01), Uno et al.

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