Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1982-05-24
1983-11-01
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 73, 430 77, G03G 514
Patent
active
044130457
ABSTRACT:
An electrophotographic photosensitive member is characterized by comprising a charge generation layer containing at least one disazo pigment represented by the following formula [I] and a charge transport layer containing at least one hydrazone compound represented by the following formula [II]: ##STR1## wherein A is a coupler residue, B represents hydrogen, halogen, alkyl, or alkoxy, and n is an integer of 1 to 4; ##STR2## wherein R.sub.1 represents N,N-dialkyl amino, or N,N-diarylamino, or N-alkyl-N-arylamino, or alkoxy or aryloxy, each being substituted or unsubstituted; R.sub.2 and R.sub.3 each represent alkyl, aralkyl, or aryl, each being substituted or unsubstituted, or R.sub.2 and R.sub.3, together with the nitrogen atom which links them, represent nitrogen-containing heterocyclic ring; R.sub.4 represents hydrogen, or alkyl, aralkyl, or aryl, each being substituted or unsubstituted; R.sub.5 represents hydrogen, alkyl, or alkoxy; and l is 0 or 1.
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Ishikawa Shozo
Katagiri Kazuharu
Kitahara Makoto
Sakai Kiyoshi
Watanabe Katsunori
Canon Kabushiki Kaisha
Welsh John D.
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