Gas separation: apparatus – Magnetic separating means
Patent
1977-12-22
1979-06-12
Demers, Arthur P.
Gas separation: apparatus
Magnetic separating means
542433, 542435, 542429, 542456, 542455, 26007G, 25230124, C07D41314, G03G 504
Patent
active
041579135
ABSTRACT:
1,3,4-OXADIAZOLE DERIVATIVES EXPRESSED BY THE GENERAL FORMULA ##STR1## , wherein R represents cyanophenyl, nitrophenyl, dialkylaminophenyl (wherein alkyl has 1-4 carbon atoms), julolidyl, N-alkylcarbazolyl (wherein alkyl has 1-4 carbon atoms) or ferrocenyl radical, are photoconductive substances possessing high sensitivity and are compounds useful as a constituent of electrophotographic plates.
REFERENCES:
patent: 3758460 (1973-09-01), Schroeder et al.
Okazaki Mitsuo
Sasaki Masaomi
Yamaguchi Akihiro
Demers Arthur P.
Ricoh Co. Ltd.
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