Stabilization of diazo-resin sensitizers with polyvinyl pyridine
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United States of America Patent
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Oct 16, 1984
Grant Date -
N/A
app pub date -
Oct 28, 1982
filing date -
Jan 12, 1982
priority date (Note) -
Expired
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Abstract
Light-sensitive compositions and materials incorporating such compositions, such as coated films for the production of polymeric resists, comprise a diazo-resin as a sensitizer for the composition and a water-soluble or water-dispersible colloid. In order to stabilize the diazo-resin sensitizer and increase the time between manufacture and use of such light-sensitive compositions and material, a poly-(vinylpyridine) is incorporated in the composition, preferably in the form of a water-soluble salt such as the hydrochloride or sulphate.
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