Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce color reproduction
Reexamination Certificate
2007-08-07
2007-08-07
Dote, Janis L. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce color reproduction
C430S107100, C430S108400, C430S108800, C430S109400, C399S119000, C399S252000, C399S336000
Reexamination Certificate
active
10278900
ABSTRACT:
A toner for electrophotography fulfilling both the fixability and the void resistance at high level, and forms a high-quality image. The toner for electrophotography contains: a binder resin; and a wax component which contains: a first wax having an endothermic peak in a temperature region of 60 to 90° C., the endothermic peak occurring in the temperature-rising stage of a DSC curve determined by a differential scanning calorimeter, and having a molecular weight distribution (weight-average molecular weight (Mw)
umber-average molecular weight (Mn)) of 1.5 or less, and substantially not containing a component having 500 Mw or less; and at least any of a second wax having an endothermic peak in a temperature region of 100 to 150° C. and the molecular weight distribution of 5 to 20; and a third wax having an endothermic peak in a temperature region of 150 to 170° C. and the molecular weight distribution of 1.1 or more.
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Ishimaru Seijiro
Katagiri Yoshimichi
Nakamura Yasushige
Tanaka Tomoaki
Yoshida Sadaaki
Dote Janis L.
Fuji 'Xerox Co., Ltd.
Westerman, Hattori, Daniels & Adrian , LLP.
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