SOUTH KOREAN INVENTORS DEVELOPS LIQUID TONER COMPOSITION

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SOUTH KOREAN INVENTORS DEVELOPS LIQUID TONER COMPOSITION

 user 2008-07-14 at 2:09:43 pm Views: 75
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    http://www.mbtmag.com/articleXml/LN817068286.html
    South Korean Inventors Develop Liquid Toner Composition
    ALEXANDRIA, Va., July 08 — Ki-won Seok and Nam-jeong Lee, both of Suwon-si, South Korea, Min-young Cheong and Hae-ree Joo, both of Seoul, South Korea, Kyung-yol Yon of Seongnam-si, South Korea, and Jung-wook Kim of Yongin-si, South Korea, have developed a liquid toner preparation method.According to the U.S. Patent & Trademark Office: “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.”An abstract of the invention, released by the Patent Office, said: “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.”The inventors were issued U.S. Patent No. 7,374,852 on May 20.The patent has been assigned to Samsung Electronics Co. Ltd., Suwon-Si.