Radiation imagery chemistry: process – composition – or product th – Erasable imaging
Reexamination Certificate
2007-06-13
2009-08-11
Walke, Amanda C. (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Erasable imaging
C430S270100, C430S905000, C430S913000, C359S296000
Reexamination Certificate
active
07572560
ABSTRACT:
An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state.
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Chopra Naveen
Iftime Gabriel
Kazmaier Peter M.
Keoshkerian Barkev
Norsten Tyler B.
Oliff & Berridge, Plc.
Walke Amanda C.
Xerox Corporation
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