On-press developable negative-working imageable elements
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United States of America Patent
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Sep 22, 2009
Grant Date -
Nov 30, 2006
app pub date -
Aug 7, 2006
filing date -
Apr 4, 2001
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Abstract
The present invention relates to negative-working imageable elements that can be used for the manufacture of printing plates. These imageable elements can be developed on on-press by the action of a lithographic printing ink used in combination with either water or a fountain solution. The imageable elements comprise an imageable layer that is not removable in water or fountain solution alone. The imageable layer includes a free radically polymerizable compound, a free radical initiator composition, an infrared radiation absorbing compound, and a polymeric binder comprising poly(alkylene oxide) pendant groups, and preferably additionally pendant cyano groups.
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