Photosensitive composition with low yellowing under UV-light and sunlight exposure
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United States of America Patent
Stats
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Dec 18, 2007
Grant Date -
May 3, 2007
app pub date -
Dec 22, 2006
filing date -
Sep 20, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This disclosure relates to a photosensitive composition useful in preparing water-developable, relief printing plates and other photosensitive articles. The compositions comprise an unsaturated polyurethane pre-polymer, which is the reaction product of at least one polyether diol, at least one aliphatic diisocyanate, at least one hydroxyl-functionalized mono-, di- and tri-(meth)acrylate, and a particular photoinitiator. The resulting photosensitive resin compositions have reduced rates and levels of yellowing if subjected to additional UV-light or sunlight after processing.
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- G03F Class
- 4.43 % this patent is cited more than
- 18 Age
