Photosensitive materials containing ionic dye compounds as initiators
AssigneeThe Mead Corporation
InventorsPeter Gottschalk, Douglas C. Neckers, Gary B. Schuster
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Abstract
A photohardenable composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-counter ion compound, said compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said compound; and photosensitive materials incorporating the same.
Claims37
A photohardenable composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.
A photosensitive material comprising a support having a layer of a photohardenable composition on the surface thereof, said composition comprising a free radical addition polymerization or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compuond prior to exposure to said actinic radiation.
The photosensitive material of claim 15 wherein said anionic dye is selected from the group consisting of xanthene and oxonol dyes.
A photosensitve material comprising a support having a layer of microcapsules on one surface thereof, sasid microcapsules having an image-forming agent associated therewith and containing an internal phase including a photohardenable composition, said composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslining of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.
Dependencies are inferred from the claim text.