申请人:Kabushiki Kaisha Ricoh
公开号:US03987060A1
公开(公告)日:1976-10-19
Electrophotographic light-sensitive materials having a photoconductive layer formed on an electroconductive support, the photoconductive layer comprising an organic photoconductive compound (monomer or polymer) and 4-dicyanomethylene-4H-indeno[1,2-b]thiophene or 8-dicyanomethylene-8H-indeno[2,1-b]thiophene or their derivatives as sensitizers, and processes for preparing such compounds from 4H-indeno[1,2-b]thiophen-4-one or 8H-indeno[2,1-b]thiophen-8-one or their derivatives and malonitrile.
电子照相光敏材料,其具有在电导支撑上形成的光电导层,该光电导层包括有机光电导化合物(单体或聚合物)和4-二氰基亚甲基-4H-吲哚并[1,2-b]噻吩或8-二氰基亚甲基-8H-吲哚并[2,1-b]噻吩或它们的衍生物作为敏化剂,并且制备这种化合物的方法是使用4H-吲哚并[1,2-b]噻吩-4-酮或8H-吲哚并[2,1-b]噻吩-8-酮或它们的衍生物和马隆腈。