Nanopastes for use as patterning compositions
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United States of America Patent
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May 15, 2007
Issued Date -
N/A
app pub date -
Jun 1, 2006
filing date -
Mar 27, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides methods of imagewise exposing a thermally sensitive composition formed from a nanopaste comprising inorganic nanoparticles, a carrier, and preferably certain polymeric binders. The composition has been applied to a substrate and treated to improve adhesion. Exposure affects the solubility of exposed portions of the applied and treated layer relative to unexposed portions of the applied layer. The imaged layer is then developed on-press with a fountain solution, lithographic ink, or both, to remove the exposed portions or unexposed portions of the layer to form an image in a printing plate.
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