US 7,579,127 B2
	Blocked polyisocyanates incorporating planar electron-deficient tetracobonylbisimide moieties
Michel F. Molaire, Rochester, N.Y. (US)
Assigned to Eastman Kodak Company, Rochester, N.Y. (US)
Filed on Jun. 15, 2006, as Appl. No. 11/453,355.
Prior Publication US 2007/0292795 A1, Dec. 20, 2007
Int. Cl. G03G 5/14 (2006.01); C08C 18/48 (2006.01)

U.S. Cl. 430—64  [525/458; 525/459; 525/440.02]

18 Claims

1. A photoconductive element comprising an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support, a charge generation layer capable of generating positive charge carriers when exposed to actinic radiation disposed over said barrier layer, said barrier layer formed from a blocked polyisocyanate containing tetracarbonylbisimide groups.