Electrophotographic photoconductor and triphenylamine compounds for use in the same
AssigneeRicoh Company, Ltd.
InventorsTamotsu Aruga, Masaomi Sasaki, Tomoyuki Shimada
Life of this patent
Estimating the term…
Abstract
An electrophotographic photoconductor is disclosed, which comprises an electroconductive support and a photoconductive layer formed thereon comprising as an effective component at least one triphenylamine compound represented by the following formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different. Further, novel triphenylamine compounds for use in the electrophotographic photoconductor are disclosed.
Claims20
An electrophotographic photoconductor comprising an electroconductive support and a photoconductive layer formed thereon comprising as an effective component at least one triphenylamine compound represented by formula (I):
- ##STR40## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
A charge transporting material comprising a triphenylamine compound having formula (I):
- ##STR41## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
An electrophotographic photoconductor comprising an electroconductive support and a photoconductive layer formed thereon comprising as an effective component at least one triphenylamine compound represented by formula (II):
- ##STR42## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
A charge transporting material comprising a triphenylamine compound having formula (II):
- ##STR43## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
A triphenylamine compound having formula (II):
- ##STR44## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
A triphenylamine compound having formula (III) ##STR46## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an akloxyl group having 1 to 4 carbon atoms, or a halogen, which may be the same or different.
Dependencies are inferred from the claim text.