Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1984-11-09
1986-01-28
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 79, G03G 506, G03G 514
Patent
active
045671249
ABSTRACT:
The present invention provides an multilayer type electrophotographic element comprising laminating a charge generating layer containing a trisazo pigment represented by the general formula (1) on an electrically conductive substrate: ##STR1## (wherein, R denotes ##STR2## and laminating a charge transfer layer containing an .alpha.-substituted stilbene compound represented by the general formula (2): ##STR3## (wherein, R.sup.1 denotes a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, R.sup.2, R.sup.3, and R.sup.4 each denotes a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, and Ar.sup.2 denotes a substituted or unsubstituted arylene group. Ar.sup.1 and R.sup.1 may be combined to form a ring. n is an integer of 0 or 1) and a resinous binder, on the charge generating layer.
REFERENCES:
patent: 4450218 (1984-05-01), Takei et al.
patent: 4507471 (1985-03-01), Ohta
patent: 4515883 (1985-05-01), Sasaki
Ohta Masafumi
Sasaki Masaomi
Shoshi Masayuki
Martin Roland E.
Ricoh Co. Ltd.
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