Imaging element having a conductive polymer layer

G - Physics – 03 – G

Patent

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G03G 5/00 (2006.01) G03G 5/10 (2006.01) G03G 13/14 (2006.01) G03G 13/22 (2006.01)

Patent

CA 2253319

An electrographic imaging element (10) useful for forming colored images is described. The element contains an imaging layer structure (12) and a support structure (14). The support structure (14) contains an electrically conductive polymeric release layer (16) formed by polymerizing a mixture containing a polymerizable, ethylenically unsaturated ammonium precursor; a polymerizable, ethylenically unsaturated, organo-silicone precursor; a polymerizable precursor containing at least two polymerizable, ethylenically unsaturated functional groups; optionally, a polymerizable, ethylenically unsaturated acidic precursor containing at least one carboxylic acid group; and, optionally, a monofunctional precursor containing one polymerizable, ethylenically unsaturated functional group. The element is particularly useful for forming large size images, such as are required for banners, billboards, and other out-of-doors advertisements.

Elément d'imagerie électrographique (10) utile pour former des images colorées. L'élément se compose d'une structure d'imagerie en couche (12) et d'une structure de support (14). La structure de support (14) contient une couche polymère électroconductrice décollable (16) formée par polymérisation d'un mélange contenant un précurseur d'ammonium polymérisable non saturé en éthylène, un précurseur polymérisable d'organosilicone non saturé en éthylène, un précurseur polymérisable contenant au moins deux groupes fonctionnels polymérisables non saturés en éthylène, et en option un précurseur polymérisable acide non saturé en éthylène contenant au moins un groupe acide carboxylique, et également en option un précurseur monofonctionnel contenant un groupe polymérisable non saturé en éthylène. Cet élément est particulièrement utile pour réaliser des images de grande taille comme des banderoles, des affiches ou d'autres supports publicitaires d'extérieur.

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