Metal complexes for use in developers for electrostatic images,

Details Metal complexes for use in developers for electrostatic images, Metal complexes for use in developers for electrostatic images,

1981-12-11

1983-09-13

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

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

430115, 430904, G03G 900

Patent

active

044042710

ABSTRACT:
A complex system for developing electrostatic images, and particularly a toner which contains a metal complex represented by the formula ##STR1## wherein a or b is a benzene ring moiety or cyclohexene ring moiety with or without C.sub.4 -C.sub.9 alkyl substituents, R.sub.1 and R.sub.2 are each hydrogen, C.sub.4 -C.sub.9 alkyl or a substituent which may be in the form of a benzene ring moiety or cyclohexene ring moiety with or without C.sub.4 -C.sub.9 alkyl substituents, provided that both R.sub.1 and R.sub.2 are not hydrogen at the same time, Me is Cr, Co or Fe, and X is a counter ion such as hydrogen or sodium. The metal complex has good compatibility with the resin component of the toner and is substantially colorless, imparting outstanding durability to the toner.

REFERENCES:
patent: 3320169 (1967-05-01), East et al.
patent: 3826747 (1974-07-01), Nagashima
patent: 3991226 (1976-11-01), Kosel
patent: 4024084 (1977-05-01), Sittardt
patent: 4206064 (1980-01-01), Kinchi

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