Fluorescent ink compositions comprising functionalized fluorescent nanocrystals
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United States of America Patent
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Dec 28, 2004
Grant Date -
Sep 25, 2003
app pub date -
Apr 16, 2003
filing date -
Nov 10, 1998
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Abstract
A fluorescent ink composition comprising functionalized fluorescent nanocrystals, an aqueous-based ink carrier comprising water or a water-based solution, and a binder. Also provided are methods of providing an image or a security mark on a substrate for subsequent identification by applying a fluorescent ink composition onto the substrate
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