PROCESS FOR THE ELECTROPHOTOGRAPHIC PRODUCTION OF HIGH-ENERGY-RADIATION IMAGES AND ELECTROPHOTOGRAPHIC COPYING MATERIAL FOR USE IN THE PROCESS

摘要

1485299 Electro-photographic materials HOECHST AG 6 Dec 1974 [8 Dec 1973] 52963/74 Heading G2C [Also in Divisions C2 and H5] Electro-photographic materials used in x-ray recording, see Division H5, comprise a transparent support, a transparent conductive layer and a transparent layer containing a charge transfer complex of a photo-conductive bromopyrene resin as in Specification 1404829 with mono-, di-, tri- or tetra-nitrofluorenone; 9-dicyanomethylene-(mono-, di- or tri-- nitrofluorene; trinitrofluoranthene or 3,4,9-10-tetranitroperylene as electron acceptor. Alternatively an oxadiazole with 3 sensitizing dyes are exemplified but polyvinyl carbazole and charge transfer compexes thereof and other heterocyclic, monomeric photoconductors are specified.