Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-05-20
2008-05-20
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...
C430S116000, C430S137220
Reexamination Certificate
active
07374852
ABSTRACT:
A liquid toner composition and a preparation method utilize a colorant, an organosol, a charge control agent, a carrier liquid, a dispersion assistant agent, and a photoreactive catalyst, in which the dispersion assistant agent is a polymer including an unsaturated functional group to cause photopolymerization in a presence of the photoreactive catalyst, and the photoreactive catalyst produces a free radical through an irradiation of light, and initiates the photopolymerization of the dispersion assistant agent. According to embodiments of the present invention, the toner organosol rarely affects the physical properties required of the liquid toner, and an offset error in a fixing operation is removed, resulting in an improved quality of a printed image.
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Korean Office Action for corresponding Korean Patent Application No. 10-2004-0030219 dated Jan. 24, 2006.
Cheong Min-young
Joo Hae-ree
Kim Jung-wook
Lee Nam-Jeong
Seok Ki-won
Chapman Mark A.
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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