Substituted carboxylic acids as adjuvants for positive electrost

Details Substituted carboxylic acids as adjuvants for positive electrost Substituted carboxylic acids as adjuvants for positive electrost

1989-09-05

1991-03-26

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...

430137, G03G 900, G03G 500

Patent

active

050028480

ABSTRACT:
A positive-working electrostatic liquid developer consisting essentially of (A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in major amount, (B) thermoplastic resin particles, less than 10 .mu.m average by area particle size, (C) a nonpolar liquid soluble ionic or zwitterionic charge director compound, and (D) a substituted carboxylic acid or salt adjuvant as defined. Component (D) can be present in liquid (A) or dispersed in the resin particles. The process of preparation of the electrostatic liquid developer is described. The liquid developers are useful in copying, color proofing including digital color proofing, lithographic printing plates and resists.

REFERENCES:
patent: 3888678 (1975-06-01), Bailey et al.
patent: 4891286 (1990-01-01), Gibson

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