Liquid developer
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2006
app pub date -
Jan 21, 2005
filing date -
Jan 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A liquid developer composition for electrophotography is disclosed which comprises a pigment, an acrylic-based thermoplastic resin, an electric insulating solvent and a dispersant, the acrylic-based thermoplastic resin having a degree of swelling of less than 0.5 g against the electric insulating solvent, the dispersant comprising at least one of modified novolak resin (A) and copolymer (B) each of which contains in its molecule an aromatic ring and a structure given by ring opening of an epoxy group with a carboxyl group derived from a hydroxycarboxylic acid.
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