Quarternary ammonium sulfate or sulfonate charge control agents

Details Quarternary ammonium sulfate or sulfonate charge control agents Quarternary ammonium sulfate or sulfonate charge control agents

1983-11-30

1989-03-07

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...

4301066, 430115, G03G 908

Patent

active

RE0328839

ABSTRACT:
This invention is directed to a dry electrostatic toner composition containing a resin, a colorant or pigment, and an organic sulfate or sulfonate charge control additive of the following formula: ##STR1## wherein R.sub.1 is an alkyl radical containing from about 12 carbon atoms to about 22 carbon atoms, and preferably from about 14 carbon atoms to 18 carbon atoms, R.sub.2 and R.sub.3 are independently selected from alkyl groups containing from about 1 carbon atom to about 5 carbon atoms, R.sub.4 is an alkylene group containing from about 1 carbon atom to about 5 carbon atoms, R.sub.5 is a tolyl group or an alkyl group containing from about 1 carbon atom to about 3 carbon atoms and n is the number 3 or 4. Such toners, especially when combined with carrier materials, are useful for causing the development of images in an electrophotographic system.

REFERENCES:
patent: 3431412 (1969-03-01), Okubo et al.
patent: 3893935 (1975-07-01), Jadwin et al.
patent: 3944493 (1976-03-01), Jadwin et al.
patent: 3970571 (1976-07-01), Olson et al.
patent: 4021358 (1977-05-01), Tomono et al.
patent: 4071655 (1978-01-01), Brana et al.
Xerox copending Application U.S.S.N. 911,623, filed 5/30/78; Chin H. Lu.

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