PRODUCTION OF CHARGE TRANSFER COMPOUND USEFUL AS ELECTROPHOTOGRAPHIC PHOTORECEPTOR

PURPOSE: To easily and safely obtain the subject high-purity compound useful as an electrophotographic photoreceptor at low cost in high yield at relatively low temperatures in a short time, by such a new process as to purify a crude charge transfer compound with activated carbon. CONSTITUTION: This...

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Bibliographic Details
Main Authors KAMEZAWA MAKOTO, ASAOKA ATSUSHI, IZUMITANI SEIJI, TACHIBANA YOSHISUMI, OTANI TAKEHIKO
Format Patent
LanguageEnglish
Published 29.10.1996
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
MAGNETOGRAPHY
METALLURGY
ORGANIC CHEMISTRY
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE: To easily and safely obtain the subject high-purity compound useful as an electrophotographic photoreceptor at low cost in high yield at relatively low temperatures in a short time, by such a new process as to purify a crude charge transfer compound with activated carbon. CONSTITUTION: This compound is obtained by purifying a crude charge transfer compound [pref. an arylamine compound of formula I (Ar -Ar are each an aromatic hydrocarbon or an aromatic heterocycle) or hydrazone compound of formula II (Ar is the same as Ar ; R and R are each an alkyl, an aralkyl, etc.)] with activated carbon (pref. of crushed or granular form 10-200 mesh in size, having a pore diameter of 20-50 , specific surface area of 900-2000m /g, and pore volume of 0.5-1.5mL/g). Preferably, the crude compound is dissolved in 5-30wt.times of an organic solvent, and the resultant solution is mixed with the activated carbon of 0.5-3wt.times the crude compound followed by filtration, or the solution is passed through a filter or a column packed with the activated carbon, thus obtaining the objective purified charge transfer compound.
Bibliography:Application Number: JP19950084278