Photoconductive compositions and electrophotographic elements containing group iva or group va organometallic photoconductors

Claim 2

An electrophotographic element comprising an electrically conducting support having thereon a photoconductive composition comprising an electrically insulating, film-forming polymeric binder containing at least one percent by weight of a photoconductor represented by the formula: wherein: T is an amino radical, Ar is an aryl radical, Ma is a Group IVa metal and E, D, and G are each selected from the group consisting of a hydrogen atom, an alkyl radical and an aryl radical.

Claim 3

An electrophotographic element comprising an electrically conducting support having coated thereon a photocOnductive composition comprising an electrically insulating, film-forming polymeric binder containing at least one percent by weight of a photoconductor represented by the formula: wherein: R1 and R2 are alkyl radicals having one to eight carbon atoms; E, G and D are each selected from the group consisting of an alkyl radical having one to eight carbon atoms and a phenyl radical; and Ma is a Group IVa metal.

Claim 4

The element of claim 4 wherein the photoconductor is sensitized with from about 0.001 to about 30 percent by weight of a compound selected from the group consisting of pyrylium, thiapyrylium and selenapyrylium salts.

Claim 5

A photoconductive element for use in electrophotography comprising a electrically conductive support having coated thereon a photoconductive composition comprising a photoconductor and an electrically insulating, film-forming polymeric binder for said photoconductor, said photoconductor being an organometallic compound present in an amount of at least one percent by weight of said composition, said compound being selected from the group consisting of triphenyl-p-diethylaminophenylsilane, methyl-diphenyl-p-diethylaminophenylsilane, triphenyl-p-diethylaminophenylgermane, triphenyl-p-dimethylaminophenylstannane, triphenyl-p-diethylaminophenylstannane, diphenyldi-(p-diethylaminophenyl)stannane, triphenyl-p-diethylaminophenylplumbane, tetra-p-diethylaminophenylplumbane.

Claim 6

In an electrophotographic process wherein an electrostatic charge pattern is formed on a photoconductive element comprising a conductive support having coated thereon a layer of a photoconductive composition, the improvement characterized in that said layer comprises an electrically insulating, film-forming polymeric binder having therein at least one percent by weight of a Group IVa organometallic photoconductive compound having at least one aminoaryl group attached through an aryl moiety to a Group IVa metal atom.

Claim 7

A photoconductive composition for use in electrophotography comprising an electrically insulating, film-forming polymeric binder containing at least one percent by weight of a photoconductor which is a Group IVa organometallic compound having attached to a Group IVa metal atom (1) at least one aminoaryl group which is attached to the metal atom through an aryl moiety and (2) the remaining substituents being selected from the group consisting of a hydrogen atom, an alkyl radical and an aryl radical, and a sensitizer for said photoconductor selected from the group consisting of pyrylium, thiapyrylium and selenapyrylium salts.

Claim 8

A photoconductive composition for use in electrophotography comprising an electrically insulating, film-forming polymeric binder containing at least one percent by weight of a photoconductor selected from the group consisting of a Group IVa organometallic compound having at least one aminoaryl group attached through the aryl moiety to a Group IVa metal selected from the group consisting of germanium, tin and lead, and a sensitizer for said photoconductor.