Multi-layer photoreceptor containing siloxane on a metal oxide layer

Claim 1

A process for preparing an electrostatographic imaging member capable of accepting a negative electrostatic charge, said member having an imaging surface and comprising at least two electrically operative layers comprising a charge transport layer and a contiguous charge generating layer overlying a film comprising a siloxane reaction product of a hydrolyzed silane having reactive OH and ammonium groups attached to silicon atoms of said siloxane, said film being contiguous to a metal oxide layer of a conductive metal anode layer, said conductive anode layer being on one side of said two electrically operative layers and said imaging surface being on the opposite side of said two electrically operative layers, comprising providing a hydrolyzed silane having the general formula selected from the group consisting of: ##STR7## and mixtures thereof, wherein R 1 is an alkylidene group containing 1 to 20 carbon atoms, R 2 and R 3 are independently selected from the group consisting of H, a lower alkyl group containing 1 to 3 carbon atoms, a phenyl group and a poly(ethylene-amino) group, R 7 is selected from the group consisting of H, a lower alkyl group containing 1 to 3 carbon atoms and a phenyl group, X is an anion from an acid or acidic salt, n is 1, 2 3 or 4, and y is 1, 2, 3 or 4 in sufficient water to form an aqueous solution while maintaining said aqueous solution at a pH between about 4 and about 10 with an acidic composition selected from the group consisting of an acid, acidic salt and mixtures thereof, contacting said metal oxide layer of said conductive anode layer with said aqueous solution to form a coating, drying said coating to form a film of said siloxane reaction product on said metal oxide layer, and applying said two electrically operative layers to said film.