Patent · US Expired

Electrophotographic recording material containing selected dithioke topyrrolopyrroles

US4632893A · kind A · utility

14Cited by
1References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 31, 1985
Grant dateDec 30, 1986
Priority date
Expiry dateDec 31, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G5/0661
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Compounds of formula (1) ##STR1## wherein A and B are identical or different alkyl, aralkyl or cycloalkyl groups or carbocyclic or heterocyclic aromatic radicals, R.sub.1 and R.sub.2 are hydrogen atoms or substituents which do not impart solubility in water, are particularly suitable as photoconductive substances.

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