EP 0231835 B1 19921111 - ELECTRO PHOTOGRAPHIC RECORDING MATERIAL
Title (en)
ELECTRO PHOTOGRAPHIC RECORDING MATERIAL
Publication
Application
Priority
DE 3603139 A 19860201
Abstract (en)
[origin: US4762760A] An electrophotographic recording material is comprised of an electrically conducting film base, an optional, adhesion-promoting, insulating intermediate film and at least one binder-containing photoconductive film that also contains a charge-carrier generating compound and pyrazoline charge-transporting compound represented by the formula <IMAGE> (I) in which n denotes zero or 1 and R1, R2, R3, R4 and R5 respectively denote hydrogen or halogen, preferably chlorine or bromine. Such a recording material has a low pre-exposure sensitivity combined with very good photosensitivity, and a low residual charge level in cyclic behavior. The charge-transporting compound has a low tendency to crystallize out in the film.
IPC 1-7
IPC 8 full level
G03G 5/06 (2006.01)
CPC (source: EP US)
G03G 5/0631 (2013.01 - EP US); G03G 5/067 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0231835 A2 19870812; EP 0231835 A3 19880504; EP 0231835 B1 19921111; DE 3603139 A1 19870813; DE 3782506 D1 19921217; JP S62191856 A 19870822; US 4762760 A 19880809
DOCDB simple family (application)
EP 87100968 A 19870123; DE 3603139 A 19860201; DE 3782506 T 19870123; JP 1880487 A 19870130; US 835787 A 19870129