Novel photoconductive substances and their application

Details Novel photoconductive substances and their application Novel photoconductive substances and their application

1973-07-05

1976-01-20

Klein, David

Gas separation: apparatus

Magnetic separating means

G03G 504

Patent

active

039334929

ABSTRACT:
Derivatives of polyglutamic acid with a molecular weight of from 1,000 to 100,000 and having the following general formula (I) are novel photoconductive substances which are superior in film forming ability and are suitable for use as photoconductors for electrophotographic copying materials:
General formula (I) ##EQU1## wherein R represents a polynuclear aromatic or a heterocyclic nitrogen group, each containing up to sixteen carbon atoms, and

REFERENCES:
patent: 3037861 (1962-06-01), Hoegl
patent: 3307940 (1967-03-01), Hoegl
patent: 3418116 (1968-12-01), Inami

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