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US5008169A Expired / Lapsed US ⏱️ 0.0 years remaining

Photoconductive imaging members with polyphosphazenes

Assignee: Xerox Corp
•
Filing: 1989-07-28
•
Granted: 1991-04-16
•
Expires: 2009-07-28
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Abstract

Abstract A photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of a polyphosphazene, including polyorganophosphazenes, a photogenerating layer, and a hole transport layer.

Inventors

  • 👤 Robert C. U. Yu
  • 👤 Santokh S. Badesha

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 10:07
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/075; G03G5/076; G03G5/0763; G03G5/0764; G03G5/0766; G03G5/102; G03G5/104; G03G5/14; G03G5/142

Claims Analysis

Total Claims: 38
Claim 1
Independent Claim 28 words
A photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of polyorganophosphazene, a photogenerating layer, and a hole transport layer.
Claim 2
Dependent Claim 28 words
A photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of polyorganophosphazene, a photogenerating layer, and a hole transport layer.
Claim 3
Dependent Claim 39 words
A photoconductive imaging member in accordance with claim 1 wherein the polyorganophosphazenes, are of the following formulas ##STR3## wherein R is independently selected from alkyl, aryl, substituted alkyl, and substituted aryl; and n represents the number of repeating segments.
Claim 4
Dependent Claim 56 words
A photoconductive imaging member in accordance with claim 1 wherein the polyorganophosphazenes are selected from the group consisting of poly[bis(p-tolylamino)]phosphazene, poly[bis(2-naphthoxy)]phosphazene, poly[bis(dialkylamino)]phosphazene, poly[bis(diarylamino)]phosphazenes, poly[bis(dimethylamino)]phosphazene, poly[bis(diethylamino)]phosphazene, poly[bis(dipropylamino)]phosphazene, poly[bis(dibutylamino)]phosphazene, poly[bis(p-ditolylamino)]phosphazene, poly[bis(carbazolyl)]phosphazene, poly[bis(dialkyl)]phosphazene, poly[bis(diaryl)]phosphazene, poly(dimethyl)phosphazene, poly(diethyl)phosphazene, poly(dibenzyl)phosphazene, poly(ditolyl)phosphazene, poly(dixylyl)phosphazene, poly[bis(alkoxy)]phosphazene, poly[bis(aryloxy)]phosphazene, poly[bis(methoxy)]phosphazene, poly[bis(ethoxy)]phosphazene, poly[bis(propyloxy)]phosphazene, poly[bis(trifluoroethoxy)]phosphazene, poly[bis(2-naphthoxy)]phosphazene, poly[bis(2-tolyloxy)]phosphazene, poly[bis(phenoxy)]phosphazene, poly[bis(p-bromophenoxy)]phosphazene, poly[bis(p-chlorophenoxy)]phosphazene, poly[bis(arylamino)]phosphazene, poly[bis(alkylamino]phosphazene, poly[bis(methylamino)]phosphazene, poly[bis(ethylamino)]phosphazene, poly[bis(p-tolylamino)]phosphazene, poly[bis(p-anilino)]phosphazene, poly[bis(2-naphthylamino)]phosphazene, and poly[bis(p-xylylamino)]phosphazene.
Claim 5
Dependent Claim 26 words
A photoconductive imaging member in accordance with claim 1 wherein the ground plane is a conductive polymer, an organic component, a metal, or a metal salt.
Claim 6
Dependent Claim 23 words
A photoconductive imaging member in accordance with claim 4 wherein the ground plane is titanium, aluminum, indium/tin oxide, zirconium/titanium, nickel, or mixtures thereof.
Claim 7
Dependent Claim 21 words
A photoconductive imaging member in accordance with claim 4 wherein the conductive ground plane is carbon black, or a conductive polymer.
Claim 8
Dependent Claim 17 words
A photoconductive imaging member in accordance with claim 6 wherein the conductive polymer ground plane is polypyrrole.
Claim 9
Dependent Claim 37 words
A photoconductive imaging member in accordance with claim 1 wherein the supporting substrate is comprised of an insulating polymer containing on its surface a conductive polymer or a metal oxide, a conductive polymer, or a metal oxide.
Claim 10
Dependent Claim 18 words
A photoconductive imaging member in accordance with claim 1 wherein the hole transport layer is an aryl amine.
Claim 11
Dependent Claim 35 words
A photoconductive imaging member in accordance with claim 1 wherein the hole transport layer is the aryl amine of the formula ##STR4## wherein X is independently selected from the group consisting of alkyl and halogen.
Claim 12
Dependent Claim 19 words
A photoconductive imaging member in accordance with claim 2 wherein the hole transport layer is the aryl amine N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-biphenyl)-4,4'-diamine.
Claim 13
Dependent Claim 91 words
A photoconductive imaging member in accordance with claim 1 wherein the hole transport layer is comprised of the N,N-bis(biarylyl)aniline polymers of the formula ##STR5## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are alkyl, aryl, alkoxy, aryloxy, or halogen; x and y are mole fractions wherein x is greater than 0 and the sum of x is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of monomer units.
Claim 14
Dependent Claim 21 words
A photoconductive imaging member in accordance with claim 1 wherein the hole transport molecules are dispersed in an inactive resin binder.
Claim 15
Dependent Claim 21 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating layer is comprised of inorganic or organic photoconductive pigments.
Claim 16
Dependent Claim 34 words
A photoconductive imaging member in accordance with claim 14 wherein the photogenerating layer is comprised of selenium, selenium alloys, trigonal selenium, vanadyl phthalocyanine, squaraines, perylene, metal free phthalocyanines, metal phthalocyanines, or dibromoanthanthrone photoconductive pigments.
Claim 17
Dependent Claim 19 words
A photoconductive imaging member in accordance with claim 15 wherein the photogenerating pigments are dispersed in a resin binder.
Claim 18
Dependent Claim 24 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating layer is situated between the supporting substrate and the hole transport layer.
Claim 19
Dependent Claim 24 words
A photoconductive imaging member in accordance with claim 1 wherein the hole transport layer is situated between the photogenerating layer and the supporting substrate.
Claim 20
Dependent Claim 32 words
A photoconductive imaging member in accordance with claim 18 wherein the supporting substrate is comprised of an insulating polymer with a conductive polymer, a metal oxide, or mixtures thereof on the surface.
Claim 21
Dependent Claim 35 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating pigments are dispersed in a resinous binder in an amount of from about 5 percent by weight to about 95 percent by weight.
Claim 22
Dependent Claim 23 words
A photoconductive imaging member in accordance with claim 20 wherein the resinous binder is a polyester, polyvinyl butyral, a polycarbonate, or polyvinyl formal.
Claim 23
Dependent Claim 29 words
A seamless photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of polyorganophosphazenes, a photogenerating layer, and a hole transport layer.
Claim 24
Dependent Claim 29 words
A seamless photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of polyorganophosphazenes, a photogenerating layer, and a hole transport layer.
Claim 25
Dependent Claim 35 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 1; developing the image; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 26
Dependent Claim 35 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 2; developing the image; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 27
Dependent Claim 35 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 22; developing the image; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 28
Dependent Claim 23 words
A photoconductive imaging member in accordance with claim 1 wherein a polyphosphazene is selected as a resin binder for the hole transport layer.
Claim 29
Dependent Claim 19 words
An imaging member in accordance with claim 2 wherein n is a number of from 1 to about 100.
Claim 30
Dependent Claim 26 words
A photoconductive imaging member comprised of a ground plane layer, a hole blocking-adhesive layer comprised of a polyorganophosphazene, a photogenerating layer, and a hole transport layer.
Claim 31
Dependent Claim 26 words
A photoconductive imaging member comprised of a ground plane layer, a hole blocking-adhesive layer comprised of a polyorganophosphazene, a photogenerating layer, and a hole transport layer.
Claim 32
Dependent Claim 52 words
A photoconductive imaging member comprised of a supporting substrate, in contact therewith a ground plane layer; a hole blocking-adhesive layer in contact with a ground plane layer, and comprised of polyorganophosphazenes; a photogenerating layer in contact with the hole blocking-adhesive layer; and a hole transport layer in contact with the photogenerating layer.
Claim 33
Dependent Claim 52 words
A photoconductive imaging member comprised of a supporting substrate, in contact therewith a ground plane layer; a hole blocking-adhesive layer in contact with a ground plane layer, and comprised of polyorganophosphazenes; a photogenerating layer in contact with the hole blocking-adhesive layer; and a hole transport layer in contact with the photogenerating layer.
Claim 34
Dependent Claim 35 words
A layered photoconductive imaging member comprised in the order stated of a supporting substrate, a ground plane layer, a hole blocking adhesive layer comprised of a polyorganophosphazene, a photogenerating layer and a hole transport layer.
Claim 35
Dependent Claim 35 words
A layered photoconductive imaging member comprised in the order stated of a supporting substrate, a ground plane layer, a hole blocking adhesive layer comprised of a polyorganophosphazene, a photogenerating layer and a hole transport layer.
Claim 36
Dependent Claim 37 words
An imaging member in accordance with claim 30 wherein the polyphosphazene is of the following formula: ##STR6## wherein R is independently selected from alkyl, aryl, substituted alkyl, and substituted aryl; and represents the number of repeating segments.
Claim 37
Dependent Claim 20 words
An imaging member in accordance with claim 30 wherein the photogenerating layer is comprised of inorganic or organic photoconductive pigments.
Claim 38
Dependent Claim 17 words
An imaging member in accordance with claim 30 wherein the polyphosphazene functions as a hole blocking-adhesive component.

References Cited (Backward Citations)

US4657993A Cited
US4889910A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-04-15 1994-10-15 1995-04-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-04-15 1998-10-15 1999-04-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-04-15 2002-10-15 2003-04-16 $7700.00 Window Closed / Lapsed

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