Method for enhancement in the rate and efficiency of photodischarge of electrostatographic imaging members comprising phthalocyanine

Method for enhancing both the rate and completeness of discharge of a photoconductive insulating layer comprising phthalocyanine pigments. Such enhancement is achieved by incorporation within such layer of from about 0.1 to about 10 weight percent, based upon phthalocyanine content, of at least one...

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Bibliographic Details
Main Author MAMMINO; JOSEPH
Format Patent
LanguageEnglish
Published 20.04.1976
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:Method for enhancing both the rate and completeness of discharge of a photoconductive insulating layer comprising phthalocyanine pigments. Such enhancement is achieved by incorporation within such layer of from about 0.1 to about 10 weight percent, based upon phthalocyanine content, of at least one charge transport sensitizer compound of the formula WHEREIN R1 is alkyl of 1-6 carbon atoms; R2 is aryl, aralkyl, p-alkylaminophenyl, or substituted p-dialkylaminophenyl; R4 represents a hydrocarbon diradical making up the balance of an aromatic ring system; R3 is alkyl, aryl, alkaryl, heterocyclo, amino, alkyl substituted amino, nitro, alkoxy or halogen; X is sulfur, oxygen or selenium; and A is a monovalent or divalent anion.
Bibliography:Application Number: US19740481014