IMAGEWISE EXPOSING AND HEATING A PHOTOSENSITIVE COMPOSITION CONTAINING A SPIROPYRAN COMPOUND AND AN ORGANIC PEROXIDE

Permanent photochromic images are obtained by selectively exposing a photochromic compound and an organic peroxide in a resin binder to ultraviolet radiation and thereafter heating the element whereby a reaction occurs in the exposed areas to provide the permenent images.

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Bibliographic Details
Main Authors OSADA C,JA, ONO H,JA
Format Patent
LanguageEnglish
Published 20.11.1973
Subjects
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Summary:Permanent photochromic images are obtained by selectively exposing a photochromic compound and an organic peroxide in a resin binder to ultraviolet radiation and thereafter heating the element whereby a reaction occurs in the exposed areas to provide the permenent images.
Bibliography:Application Number: USD3773508