G - Physics – 03 – G
Patent
G - Physics
03
G
96/55, 117/3.1
G03G 9/16 (2006.01) G03G 9/13 (2006.01) G03G 13/10 (2006.01)
Patent
CA 1144797
LIQUID NEGATIVE DEVELOPER COMPOSITIONS FOR ELECTROSTATIC COPYING Abstract of the Disclosure Disclosed is a developer composition which has improved depletion characteristics. The developer comprises an organic carrier containing latex particles comprising a major amount of a C1 - C6 lower alkyl acrylate or methacrylate polymer, a pigment system, a charge control agent consisting of a copolymer of C2 - C6 lower alkyl vinyl ether and a vinyl chloride, and an acrylic polymer gel for stabilizing the dispersion. The devel- oper may be used in conventional copying equipment to make greater than about 20,000 copies of acceptable image density.
366686
Pian Charles H. C.
Veillette Norman T.
Nashua Corporation
Osler Hoskin & Harcourt Llp
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