Laser imageable lithographic printing plates
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United States of America Patent
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Jun 1, 1999
Issued Date -
N/A
app pub date -
Mar 10, 1997
filing date -
Jun 23, 1995
priority date (Note) -
Expired
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Abstract
Lithographic plate compositions and a method for their production have been discovered that are especially useful in conjunction with digitally controlled lasers to directly construct printable images on lithographic plates. The plates comprise a substrate and an ablatable polymeric coating on the substrate where the ablatable, imageable coating is prepared by in situ or solution polymerization of conjugated monomers deposited on the plate by vapor deposition or in solution. Examples of such monomers are thiophene, pyrrole and aniline.
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