Toner for developing electrostatic image

Details Toner for developing electrostatic image Toner for developing electrostatic image

2011-03-22

2011-03-22

Chapman, Mark A (Department: 1721)

Radiation imagery chemistry: process, composition, or product th

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

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

C430S125300

Reexamination Certificate

active

07910278

ABSTRACT:
The present invention provides a toner for developing electrostatic image comprising a colored particle containing a binder resin, a colorant and a release agent, wherein the toner for developing electrostatic image has two or more peaks of loss tangent (tan δ) in the range from 50 to 120° C., a loss tangent (tan δ) in the range from 100 to 200° C. is 0.8 or less, and a dispersed diameter of the release agent is 0.1 times or less shorter than a volume average particle diameter of the colored particle.

REFERENCES:
patent: 6613490 (2003-09-01), Matsunaga et al.
patent: 7026086 (2006-04-01), Kashiwabara et al.
patent: 2003/0044708 (2003-03-01), Matsunaga et al.
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patent: 9-106093 (1997-04-01), None
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patent: 2004-198692 (2004-07-01), None
Japanese Office Action dated Sep. 21, 2010, issued in corresponding Japanese Patent Application No. 2006-550845.

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