| US 7,473,511 B2 | ||
| Particle dispersion for electrostatic image-developing toners, electrostatic image-developing toner, and method for producing the same | ||
| Yasuo Matsumura, Minamiashigara (Japan); Hirotaka Matsuoka, Minamiashigara (Japan); Hideo Maehata, Minamiashigara (Japan); Satoshi Hiraoka, Minamiashigara (Japan); Yuki Sasaki, Minamiashigara (Japan); and Fumiaki Mera, Minamiashigara (Japan) | ||
| Assigned to Fuji Xerox Co., Ltd., Tokyo (Japan) | ||
| Filed on May 03, 2005, as Appl. No. 11/119,834. | ||
| Claims priority of application No. 2004-363264 (JP), filed on Dec. 15, 2004; and application No. 2004-363265 (JP), filed on Dec. 15, 2004. | ||
| Prior Publication US 2006/0127790 A1, Jun. 15, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G03G 9/087 (2006.01) | ||
| U.S. Cl. 430—137.14 [528/274] | 18 Claims |
| 1. A resin particle dispersion for an electrostatic image-developing toner comprising polycondensation resin particles, wherein
the polycondensation resin particles are prepared by polycondensation of polycondensable monomers in an aqueous medium and
have a median diameter of approximately 0.05 to 2.0 μm;
wherein a weight ratio of the polycondensation resin particles that have a median diameter of approximately 0.03 μm or less
in the dispersion is approximately 5% or less relative to a total weight of the polycondensation resin particles, and a weight
ratio of the polycondensation resin particles that have a median diameter of approximately 5.0 μm or more in the dispersion
is approximately 5% or less relative to a total weight of the polycondensation resin particles.
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