Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2007-03-16
2011-10-18
Rodee, Christopher (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108800, C430S108100, C430S109400
Reexamination Certificate
active
08039185
ABSTRACT:
To provide a toner for developing a latent electrostatic image comprising at least a colorant, a wax, and a binder resin, wherein Iwax (s) is a value measured by FTIR-ATR Spectroscopy before heating a mirror-surfaced pellet formed by compressing and molding the toner, and Iwax (t) is a value measured by FTIR-ATR Spectroscopy after heating the pellet at a surface temperature thereof of 130° C. for 1 minute satisfy Formulae (1), (2), (3), and (4),in-line-formulae description="In-line Formulae" end="lead"?Iwax (t)≧0.2*100/[T½(° C.)] Formula (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Iwax (s)≦0.26 Formula (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Iwax (t)≦0.50 Formula (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Iwax (t)>Iwax (s) Formula (4)in-line-formulae description="In-line Formulae" end="tail"?wherein both Iwax(s) and Iwax(t) are obtained by a formula: absorbance derived from the wax (2850 cm−1)/absorbance derived from the binder resin (828 cm−1).
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Matsumoto Mitsuyo
Nakamura Minoru
Nozaki Chiyoshi
Nozaki Tsuyoshi
Yamamoto Atsushi
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
Rodee Christopher
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