Tulipalin copolymers
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United States of America Patent
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Apr 26, 2011
Grant Date -
Jun 4, 2009
app pub date -
Nov 25, 2008
filing date -
Nov 30, 2005
priority date (Note) -
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Abstract
Copolymers are disclosed comprising structural units derived from α-methylene-γ-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.
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