G - Physics – 03 – G
Patent
G - Physics
03
G
96/55
G03G 9/12 (2006.01) G03G 9/13 (2006.01)
Patent
CA 1212854
LIQUID ELECTROGRAPHIC DEVELOPERS Abstract of Disclosure Liquid electrographic developers are dis- closed comprising an electrically insulating liquid carrier, toner, a charge-control agent and a charging agent. The charge-control agent is a carrier- soluble, addition copolymer of a quaternary ammonium salt monomer, a monomer having -COOH, -SO3H or -PO3HR acidic function wherein R is hydrogen or alkyl, and a solubilizing monomer. The charging agent is a carrier-soluble, addition polar copoly- mer. The disclosed developers exhibit improved replenishability as evidenced by reduced buildup of charge in the developers during the course of use and repeated replenishment.
445451
Alexandrovich Peter S.
Sorriero Louis J.
Sreekumar Chandra
Borden Ladner Gervais Llp
Eastman Kodak Company
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