Polymerizable oligomeric urethane compositions comprising nanoparticles
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United States of America Patent
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Feb 5, 2008
Grant Date -
Sep 13, 2007
app pub date -
Mar 10, 2006
filing date -
Feb 17, 2005
priority date (Note) -
Expired
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Abstract
Presently described are microstructured articles such as a brightness enhancing film or optical turning film. The microstructured articles comprise a brightness enhancing polymerized structure comprising the reaction product of a composition comprising an organic component having at least one oligomeric urethane (meth)acrylate and surface modified silica nanoparticles.
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