Patent · US Expired

Photosensitive elements for electrophotography

US4278746A · kind A · utility

55Cited by
1References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 14, 1979
Grant dateJul 14, 1981
Priority date
Expiry dateJun 14, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G5/067
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A photosensitive element for electrophotography which comprises a conductive support, a charge generating layer containing a charge generating substance, and a charge transporting layer. The element comprises a polymeric binder containing a charge transporting substance represented by the formula (I). ##STR1## wherein n represents 0 or 1, R.sub.1, R.sub.2 and R.sub.3 each represent an aryl group, and R.sub.4 and R.sub.5 each represent a hydrogen, an alkyl group having 1-4 carbon atoms, an aryl group or an aralkyl group, provided that R.sub.4 and R.sub.5 are not simultaneously a hydrogen, and when n is 0, R.sub.4 is not hydrogen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.