Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 2, 2009
Patent Application Number
11762150
Date Filed
June 13, 2007
Patent Primary Examiner
Patent abstract
An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light.
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