Chromium, molybdenum and tungsten compounds as charging adjuvant

Details Chromium, molybdenum and tungsten compounds as charging adjuvant Chromium, molybdenum and tungsten compounds as charging adjuvant

1989-05-10

1990-08-21

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

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

G03G 912

Patent

active

049505769

ABSTRACT:
An electrostatic liquid developer consisting essentially of (A) a nonpolar liquid having a Kauributanol value of less than 30, present in major amount; (B) thermoplastic resin particles less than 30 .mu.m average particle size; (C) a chromium, molybdenum or tungsten compound having an oxidation state of at least +3 wherein the anionic component is as defined above, and (D) a nonpolar liquid soluble ionic or zwitterionic charge director compound. The process of preparation of the electrostatic liquid developer is also described. The liquid developers are useful in copying, color proofing including digital color proofing, lithographic printing plates, and resists.

REFERENCES:
patent: 3793015 (1974-02-01), Van Engeland et al.
patent: 3844966 (1974-10-01), Nelson
patent: 4024084 (1977-05-01), Sihardt et al.
patent: 4407924 (1983-10-01), Senshu et al.
patent: 4758494 (1988-07-01), El-Sayed

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