US 7,485,398 B2
Titanyl phthalocyanine photoconductors
Jin Wu, Webster, N.Y. (US); John F. Yanus, Webster, N.Y. (US); Satish R. Parikh, Rochester, N.Y. (US); Anthony M. Horgan, Pittsford, N.Y. (US); Kent J Evans, Lima, N.Y. (US); Geoffrey M T. Foley, Fairport, N.Y. (US); Satchidanand Mishra, Webster, N.Y. (US); Markus R. Silvestri, Fairport, N.Y. (US); J. Robinson Cowdery-Corvan, Webster, N.Y. (US); David M. Skinner, Rochester, N.Y. (US); Edward F. Grabowski, Webster, N.Y. (US); Kathleen M. Carmichael, Williamson, N.Y. (US); Yonn K. Rasmussen, Pittsford, N.Y. (US); Donald J. Goodman, Pittsford, N.Y. (US); and Liang-Bih Lin, Rochester, N.Y. (US)
Assigned to Xerox Corporation, Norwalk, Conn. (US)
Filed on Jun. 22, 2006, as Appl. No. 11/472,766.
Prior Publication US 2007/0298342 A1, Dec. 27, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 5/06 (2006.01)
U.S. Cl. 430—58.75  [430/59.5] 19 Claims
OG exemplary drawing
 
1. A photoconductor comprising an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein said at least one charge transport component is comprised of aryl amine molecules of the formula

OG Complex Work Unit Drawing
wherein X and Y are each independently alkyl, alkoxy, aryl, or a halogen, and wherein said photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding said mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating said Type Y titanyl phthalocyanine with monohalobenzene; and wherein said photogenerating layer contains a thiophosphate represented by

OG Complex Work Unit Drawing
wherein R1, R2, R3, R4, R5 and R6 each independently represents alkyl containing from 1 to about 20 carbon atoms; cycloalkyl containing from 6 to about 26 carbon atoms; and aryl, alkylaryl or arylalkyl containing from about 6 to about 50 carbon atoms.