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AssigneeAgfa-Gevaert
InventorsUrbain Leopold Laridon, Gerard Albert Delzenne, Helmut Mader, Hans Ulrich, Bernhard Seidel
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Photo-sensitive film-forming soluble polymeric materials containing one or two polymers which can be insolubilized photochemically are disclosed. These polymeric materials contain in the same or different polymers (A) components which are reactive with moieties obtained by the photochemical decomposition of azidosulphonyl groups, e.g., a hydroxyl radical, pyridine, a phenyl radical, or a lactam radical; and (B) azidosulphonyl groups. The photo-sensitive material is insolubilized by exposure to actinic light. The material is useful in the production of photographic resists, printing plates for lithography, and the like.
A film-forming light-sensitive polymeric material consisting essentially of one or two polymers, which is soluble before exposure to actinic light in an organic solvent or water and which becomes insoluble in said organic solvent or water when exposed to actinic light and having carried on said polymer or polymers (A) azidosulphonyl groups, and (B) a component which is reactive with moieties obtained upon the photochemical decomposition of azidosulphonyl groups by exposure to actinic light, said reactive component being selected from the group consisting of a hydroxyl radical, pyridine, a phenyl radical, and pyrrolidone, said (A) and (B) each being present in said polymeric material in an amount sufficient to, upon exposure of said polymeric material to actinic light, photochemically cross-link and render said polymeric material insoluble in said organic solvent or water.
A light-sensitive film-forming polymeric material consisting essentially of one or two polymers having carried on said one or two polymers light-sensitive azidosulphonyl groups and groups selected from the group consisting of a hydroxyl radical, pyridine, a phenyl radical, and pyrrolidone which upon exposure to actinic light will react with said azidosulphonyl groups to provide a cross-linked, insoluble and infusible polymer.
Dependencies are inferred from the claim text.