Print-out and developable-out photographic processes

Claim 1

IN A PHOTOGRAPHIC PROCESS WHEREIN A STABLE COLORED PRINT-OUT IMAGE IS PRODUCED BY EXPOSING AN INITIALLY COLORLESS PHOTOSENSITIVE COMPOSITION TO LIGHT OF A SUITABLE WAVELENGTH AND WHEREIN THE PHOTOSENSITIVE COMPOSITION COMPRISES AN ARYLAMINE SELECTED FROM THE GROUP CONSISTING OF AMINES IN WHICH THE AMINE NITROGEN IS ATTACHED TO A CARBON A CARBOCYCLIC NUCLEUS AND AMINES IN WHICH THE AMINE NITROGEN IS A MEMBER OF AHETEROCYCLIC NUCLEUS; ANDAN ORGANIC HALOGEN-CONTAINING COMPOUND WHICH RELEASES FREE RADICALS CONTAINING HALOGEN ON EXPOSURE TO SAID LIGHT, SELECTED FROM THE GROUP CONSISTING OF HALOGENATED HYDROCARBONS HAVING AN ENERGY OF FORMATION OF A FREE HALOGEN RADICAL OF NOT LESS THAN ABOUT 40 KILOGRAM CALORIES PER MOL AND IN WHICH AT LEAST ONE ACTIVE HALOGEN SELECTED FROM THE GROUP CONSISTING OF C1, BR AND I IS ATTACHED TO A CARBON ATOM HAVING NOT MORE THAN ONE HYDROGEN ATOM ATTACHED THERETO, SAID COMPOSITION BEING INITIALLY IN THE FORM OF A THIN FILM SUPPORTED IN A CARRIER SELECTED FROM THE GROUP CONSISTING OF POLMERS OF VINYLIDENE MONOMERS AND STRAIGHT CHAIN AND BRANCHED CHAIN HYROCARBON PARAFFIN AND ISOPARAFFIN WAXES, AND MIXTURES THEREOF; THE IMPROVEMENT WHICH COMPRISES: INCLUDING IN SAID PHOTOSENSITIVE COMPOSITION AT LEAST TWO ORGANIC HALOGEN-CONTAINING COMPOUNDS, SAID COMPOUNDS BEING SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS WHICH RELEASE A FREE RADICAL OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF C1, BR AND I AND FURTHER SELECTED SO THAT AT LEAST TWO DIFFERENT HALOGENS ARE RELEASED FROM SAID ORGANIC HALOGEN CONTAINING COMPOUNDS AS FREE RADICALS AS A RESULT OF SAID EXPOSURE, WHEREBY THE TIME REQUIRED FOR EXPOSURE SUFFICIENT TO YIELD A USEFUL IMAGE IS SUBSTANTIALLY DIMINISHED AS COMPARED WITH THE TIME REQUIRED WHEN THE PHOTOSENSITIVE COMPOSITIONS ARE OTHERWISE SIMILAR EXCEPT THAT THEY CONTAIN FREE RADICAL SOURCES WHICH RELEASE NOT MORE THAN ONE OF SAID HALOGENS AS A FREE RADICAL.