Linked dihydrazone-based charge transport compounds

Details Linked dihydrazone-based charge transport compounds Linked dihydrazone-based charge transport compounds

2007-07-17

2007-07-17

Dote, Janis L. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

C430S073000

Reexamination Certificate

active

11274942

ABSTRACT:
Improved organophotoreceptors comprise:(a) a charge transport compound having the formula where n is an integer from 0 to 1;X is an (N,N-disubstituted)arylamine group;Ar is an aryl group or a heterocyclic group;A is a first linking group with the formula —(CH2)p— which can be branched or linear, where p is an integer from 3 to 20 inclusive; andB is a second linking group having the formula -Q-Z-Q′, where Q and Q′ are, independently, O, S, or NR1; wherein when Q or Q′ is NR1or Q=O and Q′=S, Z comprises an aryl group, and wherein when Q=Q′S or Q=Q′=O, Z comprises a multi-ring conjugated group;(b) a charge generating compound; and(c) an electrically conductive substrate over which said charge transport compound and said charge generating compound are located.

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