Linked dihydrazone-based charge transport compounds

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

2006-07-11

2006-07-11

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

C430S058450, C430S126200, C548S138000

Reexamination Certificate

active

07074532

ABSTRACT:
Improved organophotoreceptors comprise:(a) a charge transport compound having the formulawhere 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 and where one or more methylene groups can be optionally replaced by O, S, a carbonyl group, urethane, urea, an ester group, a —NR16group, a CHR17group, or a CR18R19group where R16, R17, R18and R19are, independently, H, hydroxyl, thiol, an amine group, an alkyl group, an alkaryl group, an aryl group, or part of a ring; andB is a second linking group having the formula -Q-Z-Q′-, where Q and Q′ are, independently, O, S, or NR1, where R1is an H, an alkyl group, an alkaryl group or an aryl group, and Z comprises a heterocyclic 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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