Water developable diazo printing plate composition with quaternary nitrogen stabilizer
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United States of America Patent
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Feb 4, 1986
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N/A
app pub date -
Oct 23, 1984
filing date -
Sep 21, 1982
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Abstract
A water developable printing plate is provided with a photopolymerizable system as a latex comprising a water soluble diazopolymer reaction product of a diazoaryl amine and an aldehyde and an aqueous cationic or nonionic dispersion of a water insoluble polymer. The inclusion of a water miscible organic solvent improves the shelf-life of the photopolymerizable system and the printing plate especially under high humidity conditions.
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