Patent ID: 7632621

Claim:
A method comprising: a) applying a radiant energy sensitive material to a substrate; b) selectively ink jetting a light-blocking composition to the radiant energy sensitive material on the substrate to form a composite, the light-blocking composition comprises one or more anhydride copolymers and one or more light-blocking agents chosen from benzophenones, derivatives of benzophenones, benzotriazoles, derivatives of benzotriazoles, triazines, benzoates, cinnamates, salicylates, crylenes, cyanoacrylates, formamidines, hexaarylbimidazoles, alpha-aminoalkylphenones, acylphosphine oxides, onium salts and aryl sulfonium salts; c) exposing the composite to actinic radiation; and d) applying an aqueous base to the composite to remove the light-blocking composition and portions of the radiant energy sensitive material to form a pattern on the substrate.