Hydrazone-based charge transport materials

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product

Reexamination Certificate

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C430S079000, C430S076000, C430S126200, C548S444000, C546S095000, C399S159000

Reexamination Certificate

active

10836734

ABSTRACT:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising:(a) a charge transport material having the formulawhere R1and R2are, each independently, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group;R3and R4are, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group;X1and X2are, each independently, a linking group;Y1and Y2, each independently, comprise an arylamino group; andZ is a bridging group; and(b) a charge generating compound.Corresponding electrophotographic apparatuses and imaging methods are described.

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