Electrophotographic photosensitive material with a quinocyanine

Details Electrophotographic photosensitive material with a quinocyanine Electrophotographic photosensitive material with a quinocyanine

1977-09-28

1980-06-24

Martin, Jr., Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 58, G03G 506, G03G 514

Patent

active

042095794

ABSTRACT:
An electrophotographic photosensitive material comprising an electrically conductive support having thereon a photoconductive layer containing an organic photoconductive material, in which the photoconductive layer contains in a dispersed state a quinocyanine pigment represented by the following general formula (I) ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms or an allyl group; X represents an anionic functional group selected from the group consisting of R.sub.3 COO.sup.-, R.sub.4 SO.sub.3.sup.-, R.sub.5 SO.sub.4.sup.- and NO.sub.3.sup.- ; R.sub.3 represents an unsubstituted alkyl group having 1 to 5 carbon atoms, a substituted alkyl group having 1 to 5 carbon atoms in the alkyl moiety thereof, an unsubstituted or substituted phenyl group or a nitrogen-containing heterocyclic group; R.sub.4 represents an unsubstituted alkyl group having 1 to 4 carbon atoms or an unsubstituted or substituted phenyl or naphthyl group; R.sub.5 represents a hydrogen atom or an unsubstituted alkyl group having 1 to 4 carbon atoms; and the two quinoline nuclei may contain additional substituents; and n is 0 or an integer of 1, 2 or 3.

REFERENCES:
patent: 2951841 (1960-09-01), Wilson
patent: 3482981 (1969-12-01), Van Lare
patent: 3796573 (1974-03-01), Jones
patent: 3879197 (1975-04-01), Bartlett et al.
patent: 3982935 (1976-09-01), Bartlett et al.

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