Liquid toner composition and preparation method of the same

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

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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.

REFERENCES:
patent: 3926825 (1975-12-01), Honjo et al.
patent: 5322751 (1994-06-01), Chou et al.
patent: 62-18575 (1987-01-01), None
patent: 6-56946 (1994-03-01), None
patent: 2003-43750 (2003-02-01), None
patent: 2003-57883 (2003-02-01), None
patent: 2003-241440 (2003-08-01), None
patent: 1999-63760 (1999-07-01), None
Korean Office Action for corresponding Korean Patent Application No. 10-2004-0030219 dated Jan. 24, 2006.

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