Patent ID: 6756181
Filing Date: 2004-06-29
Classification: G03F,Y10S

Abstract:
A photosensitive element comprising:a) a backing layer b) at least one layer of a photocurable composition on said backing layer, which photocurable composition is curable by contact with ultraviolet radiation; c) at least one ablation layer which is ablatable by laser radiation and which absorbs at least 97% of the ultra violet radiation in the spectral range used to photocure the photocurable layer, wherein the ablation layer is in direct contact with the at least one photocurable layer and has a surface opposite the photocurable layer capable of being exposed cc laser ablation, the ablation layer comprising: i) at least one ultraviolet radiation absorbing material; and ii) at least one binder that is selected from the group consisting of polyacetals, polyacrylics, polyamides, polyamides, polybutylenes, polycarbonates, polyesters, polyethylenes, polyphenylene ethers and polyethylene oxides; wherein the ablation layer is ablatable from the surface of the photocurable layer upon exposure to laser radiation, wherein the photocurable layer is curable by contact with ultraviolet radiation and wherein the ablatable layer is ablatable by contact with laser radiation without damage to the photocurable layer.