Light and heat sensitive composition for producing a colored transfer complex image

Claim 1

A photosensitive composition essentially consisting of a dispersion phase in the form of discrete particles of (a) an aromatic compound having an electron donative group and being polymerizable upon exposure to actinic light and (b) an organic compound having a double bond conjugated with an electron attracting group relative to said electron donative group in a solid-hydrophilic-film-forming vehicle in which said combination is insoluble, said compound (a) being a compound selected from the group consisting of N-vinylcarbazole, vinylanthracene, N-benzylacrylamide, N-methoxyphenylmethaacrylamide, β-naphthylvinyl ether, p-phenylstyrene, vinyldiphenylamine, acenaphthylene, vinyl fluorene, β-vinylnaphthalene, 2-vinylphenanthrene, 3-vinylphenanthrene, 1-vinylpyrene and p-phenylenediacrylpropionate, said compound (b) being a compound selected from the group consisting of tetrabromoethylene, 1,2-dibromo-1-iodoethylene, α-chloro-3,5-dinitrostyrene, tetracyanoquinodimethane, tetracyanoethylene, chloranil, bromanil, quinone, anthraquinone, 2,4,7-trinitrofluorenone, trinitrobenzene, and tetranitropyrene, said combination being selected such that melting points of said compounds (a) and (b) differ from each other by more than 10°C and that said compounds (a) and (b) react with each other and produce a colored charge transfer complex when said combination is heated above the lower one of said melting points.