Cards and laminates incorporating multilayer optical films
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United States of America Patent
Stats
-
Sep 18, 2007
Grant Date -
Nov 24, 2005
app pub date -
May 18, 2005
filing date -
May 22, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
New constructions of multilayer optical films, laminates thereof, and cards incorporating same are disclosed. In a card, the multilayer optical film can be sandwiched between relatively thick polymer layers using adhesive layers that are at least 0.5 mils thick but that may collectively account for no more than 3 mils of thickness. The cards can if desired be highly transmissive in the visible yet highly opaque in portions of the infrared. The resulting cards can have reduced angel hair formation during card stamping, increased resistance to delamination, and reduced haze.
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