Toner, developer, toner container, process cartridge, fixing...

Details Toner, developer, toner container, process cartridge, fixing... Toner, developer, toner container, process cartridge, fixing...

2008-06-17

2009-06-23

Chapman, Mark A (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

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

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

C430S124300, C430S109100, C430S109400, C399S320000, C399S328000

Reexamination Certificate

active

07550243

ABSTRACT:
The object of the present invention is to provide a toner characterized in that the toner comprises a first binder resin and a second binder resin, the first binder resin is an amorphous resin and the second binder resin is a crystalline resin, and the glass-transition temperature of the toner (TgA) is lower than the glass-transition temperature expressed by the following equation (1) (TgC).TgC=∑i=1n⁢⁢bi/∑i=1n⁢⁢(biTgBi)Equation⁢⁢(1)In the above equation (1), “TgBi” represents the glass-transition temperature of the amorphous resin, “n” represents the number of amorphous resins, and “b” represents the content of the amorphous resin (part by mass). Examples of the preferred aspect of the present invention includes the one that at least a part of the amorphous resin and a part of the crystalline resin are compatible each other, and the one that the glass-transition temperature of the toner (TgA) is 10° C. or more lower than the glass-transition temperature (TgC).

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