Liquid photosensitive composition

Details Liquid photosensitive composition Liquid photosensitive composition

G - Physics

03

F

G03F 7/033 (2006.01) G03F 7/00 (2006.01) G03F 7/004 (2006.01) G06K 19/02 (2006.01)

Patent

CA 2276104

A photosensitive composition which is liquid at room temperature and which comprises a) 18 to 22 % by weight of a binder polymer based on a styrene- maleic anhydride halfester copolymer, b) 10 to 15 % by weight of at least one photocurable acrylate compound, c)0.1 to 10 % by weight of a photoinitiator, and d) 45 to 70 % by weight of a propylene glycol halfester or propylene glycol halfether, the sum of the components a) to d) being 100 % by weight, is suitable for the production of photostructured objects, preferably for the production of telephone cards.

L'invention concerne une composition photosensible qui est liquide à température ambiante. Cette composition comprend (a) 18 à 22 % en poids d'un polymère liant basé sur un copolymère semi-ester d'anhydride maléique de styrène, (b) 10 à 15 % en poids d'au moins un composé d'acrylate photodurcissable, (c) 0,1 à 10 % en poids d'un photo-initiateur et (d) 45 à 70 % en poids d'un semi-ester de propylèneglycol ou semi-éther de propylèneglycol. La somme des composants (a) à (d) représente 100 % en poids. Cette composition présente une grande utilité pour la production d'objets photostructurés, de préférence pour la production de cartes téléphoniques.

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