Developer for developing electrostatic latent image

Details Developer for developing electrostatic latent image Developer for developing electrostatic latent image

1997-05-15

1998-08-04

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

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

430111, G03G 9097

Patent

active

057891311

ABSTRACT:
A developer for developing an electrostatic latent image comprising: (a) a positively chargeable toner particle comprising a binder resin which comprises a styrene-type copolymer having an acid value of 1 to 10 KOHmg/g and a colorant; and (b) a hydrophobic silica adhered to the surface of said toner particle, said hydrophobic silica being treated by a hydrophobic property imparting agent and having a pH of 6.5 to 9.0.

REFERENCES:
patent: 4486524 (1984-12-01), Fujisaki et al.
patent: 4640882 (1987-02-01), Mitsuhashi et al.
patent: 4939060 (1990-07-01), Tomiyama et al.
patent: 5024915 (1991-06-01), Sato et al.
patent: 5026620 (1991-06-01), Masaki et al.
patent: 5106715 (1992-04-01), Matsumura et al.

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