Photoreactive compositions comprising polymers containing alkoxyaromaticglyoxy groups
AssigneeThe Richardson Company
InventorsThaddeus M. Muzyczko, Thomas H. Jones
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Abstract
A photoreactive composition containing an effective amount of a compound having at least two alkoxyaromaticglyoxy substituents per molecule, which substituents have the following general formula: ##STR1## wherein R is selected from the class consisting of H, aryl, alkyl, halo and arakyl having up to 10 carbon atoms, n is an integer from 1 to 18, Ar is an aromatic substituent, and M is selected from the class consisting of H, alkali metal, ammonium, and substituted ammonium. These compositions are useful in a wide variety of photochemical and photomechanical processes and are particularly suited for use as photopolymers, photoinitiators and photosensitizers in light sensitive coatings of presensitized lithographic plates.
Claims21
A light sensitive composition comprising:
- a polymer which includes as a recurring structure:
- ##STR3## wherein R is selected from the group consisting of hydrogen, aryl, alkyl, halo and aralkyl having up to 10 carbon atoms and n is an integer from 1 to 18, Ar is an aromatic substituent and M is selected from the class consisting of hydrogen, alkali metal, ammonium and substituted ammonium;
- and, a photosensitizer in addition to said polymer.
A light sensitive composition comprising:
- a polymer which includes as a recurring structure:
- ##STR5## wherein R is selected from the group consisting of hydrogen, aryl, alkyl, halo and aralkyl having up to 10 carbon atoms and n is an integer from 1 to 18, Ar is an aromatic substituent and M is selected from the class consisting of hydrogen, alkali metal, ammonium and substituted ammonium;
- a photosensitizer in addition to said polymer;
- and, a further material selected from the group polymerizable monomers, saturated resins, unsaturated resins and polymer precursors.
Dependencies are inferred from the claim text.