Electrophotographic printing plate precursor

Details Electrophotographic printing plate precursor Electrophotographic printing plate precursor

1989-12-13

1991-11-05

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 56, 430 49, G03G 1509, G03G 1500, G03G 1328

Patent

active

050631292

ABSTRACT:
A electrophotographic printing plate precursor comprising an electrically-conductive support having thereon a photoconductive layer containing at least photoconductive pigments and a binder resin, wherein said photoconductive pigments are phthalocyanine pigments and said photoconductive layer further comprises a compound represented by the general formula (I), (II) or (III): ##STR1## wherein Z represents a sulfur or oxygen atom; Ar represents a monovalent aromatic hydrocarbon group or monovalent heterocyclic group; R.sub.3 represents a hydrogen atom, alkyl group, aryl group or aralkyl group; Ar and R.sub.3 may together form a ring; and R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group, aryl group or aralkyl group, with the proviso that the aromatic hydrocarbon group and heterocyclic group represented by Ar and the alkyl, aryl and aralkyl group represented by R.sub.1, R.sub.2 and R.sub.3 may be further substituted by substituents, ##STR2## wherein Z represents a sulfur or oxygen atom; R.sub.4 to R.sub.9, which may be the same or different, each represents a hydrogen atom, alkyl group, aryl group or monovalent group derived from heterocyclic group; R.sub.4 and R.sub.5 or R.sub.6 and R.sub.7 may be connected to each other; R.sub.4 to R.sub.7 may be connected to each other to form a crosslinkable ring as a whole in the general formula (II); and R.sub.10 represents a divalent arylene, aralkylene, polymethylene or alkylene group.

REFERENCES:
patent: 4461821 (1984-07-01), Sano et al.
patent: 4500622 (1985-02-01), Horie et al.
patent: 4500623 (1985-02-01), Sano et al.
patent: 4882248 (1989-11-01), Yamada et al.

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