Spectral sensitization of organic photoconductors with diazastry

Details Spectral sensitization of organic photoconductors with diazastry Spectral sensitization of organic photoconductors with diazastry

1980-12-03

1982-07-27

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 81, 430 82, 430580, 430581, G03G 504

Patent

active

043418538

ABSTRACT:
Photoconductive compositions and materials including photoconductive substances and spectral sensitizers, are described; the sensitizers comprise diazastyryl dyes represented by formula (I) ##STR1## wherein R.sub.1 represents an alkyl group, R.sub.2 represents hydrogen, an alkyl group or an alkoxy group, R.sub.3 and R.sub.4 each represent an alkyl group or R.sub.3 and R.sub.4 together represent a group completing nitrogen-containing heterocyclic groups and A represents a group completing (a) benzothiazolium ring, (b) thiazolium ring, (c) imidazolium ring, (d) triazolium ring, (e) thiadiazolium ring, (f) pyridinium ring, (g) indazolium ring or (h) indolenium ring.

REFERENCES:
patent: 4018606 (1977-04-01), Cointois

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