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US4833052A
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Bisazo photoconductive imaging members
Assignee: Xerox Corp
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Filing: 1988-08-02
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Granted: 1989-05-23
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Expires: 2008-08-02
Abstract
Abstract A photoconductive imaging member comprised of a supporting substrate; a photogenerating layer comprised of a bisazo compound of the formula <IMAGE> wherein Cp is an azoic coupler selected from the group consisting of <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> wherein Ar is an aromatic substituent; and a charge transport layer.
Inventors
- 👤 Kock-Yee Law
- 👤 Ihor W. Tarnawskyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:37
CPC Classifications
C; C09; C09B; C09B35/00; C09B35/02; C09B35/039; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0646; G03G5/0653; G03G5/0664; G03G5/0675; G03G5/0679; G03G5/0683
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
45 words
A photoconductive imaging member comprised of a supporting substrate; a photogenerating layer comprised of a bisazo compound of the formula ##STR6## wherein Cp is an azoic coupler selected from the group consisting of ##STR7## wherein Ar is an aromatic substitutent; and a charge transport layer.
Claim 2
Dependent Claim
45 words
A photoconductive imaging member comprised of a supporting substrate; a photogenerating layer comprised of a bisazo compound of the formula ##STR6## wherein Cp is an azoic coupler selected from the group consisting of ##STR7## wherein Ar is an aromatic substitutent; and a charge transport layer.
Claim 3
Dependent Claim
20 words
A photoconductive member in accordance with claim 1 wherein the aromatic substituent contains from 6 to about 24 carbon atoms.
Claim 4
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the aromatic substituent is phenyl.
Claim 5
Dependent Claim
21 words
An imaging member in accordance with claim 1 wherein the aromatic substituent is substituted with alkyl, alkoxy, halo, trihalomethyl, or nitro.
Claim 6
Dependent Claim
20 words
An imaging member in accordance with claim 4 wherein the alkyl substituent contains from 1 to about 20 carbon atoms.
Claim 7
Dependent Claim
14 words
An imaging member in accordance with claim 4 wherein the alkyl substituent is methyl.
Claim 8
Dependent Claim
20 words
An imaging member in accordance with claim 4 wherein the alkoxy substituent contains from 1 to about 15 carbon atoms.
Claim 9
Dependent Claim
13 words
An imaging member in accordance with claim 4 wherein the alkoxy is methoxy.
Claim 10
Dependent Claim
17 words
An imaging member in accordance with claim 4 wherein the halo is fluoride, bromide, iodide, or chloride.
Claim 11
Dependent Claim
23 words
An imaging member in accordance with claim 1 wherein the bisazo compound is represented by the formulas of FIGS. 1 to 19, respectively.
Claim 12
Dependent Claim
20 words
An imaging member in accordance with claim 1 wherein the azo compound is 4,4'-bis(1"-azo-2"-hydroxy-3"-naphthanilide)-1,1'-dianthraquinonylamine; 4,4'-bis(1"-azo-2"-hydroxy-3"-naphtho-p-fluoroanilide)-1,1'-dianthraquinonylamine; 4,4'-bis(1"-azo-2"-hydroxy-3"-naphtho-p-trifluoromethylanilide)-1,1'-dianthraquinonylamine; 4,4'-bis(1"-azo-2"-hydroxy-3"-naphtho-p-methoxyanilide)-1,1'-dianthraquinonylamine; 4,4'-bis(1"-azo-2"-hydroxy-3"-naphtho-p-ethylanilide)-1,1'-dianthraquinonylamine; or 4,4'-bis(1"-azo-2"-hydroxy-3"-naphtho-p-chloroanilide)-1,1'-dianthraquinonylamine.
Claim 13
Dependent Claim
24 words
An imaging member in accordance with claim 1 wherein the bisazo photogenerating layer is situated between the supporting substrate and the hole transport layer.
Claim 14
Dependent Claim
26 words
An imaging member in accordance with claim 1 wherein the aryl amine hole transport layer is situated between the supporting substrate and the azo photogenerating layer.
Claim 15
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the supporting substrate is aluminum.
Claim 16
Dependent Claim
17 words
An imaging member in accordance with claim 1 wherein the supporting substrate is an organic polymeric composition.
Claim 17
Dependent Claim
35 words
An imaging member in accordance with claim 1 wherein the azo photogenerating compound is dispersed in a resinous binder in an amount of from about 5 percent by weight to about 95 percent by weight.
Claim 18
Dependent Claim
22 words
An imaging member in accordance with claim 16 wherein the resinous binder is a polyester, polyvinyl butyral, a polycarbonate, or polyvinyl formal.
Claim 19
Dependent Claim
41 words
An imaging member in accordance with claim 1 wherein the charge transport layer comprises molecules of the formula ##STR8## dispersed in a highly insulating and transparent organic resinous binder wherein X is selected from the group consisting of alkyl and halogen.
Claim 20
Dependent Claim
37 words
An improved imaging member in accordance with claim 18 wherein X is selected from the group consisting of ortho (CH 3 ), meta (CH 3 ), para (CH 3 ), ortho (Cl), meta (Cl), or para (Cl).
Claim 21
Dependent Claim
34 words
An imaging member comprised of (1) a supporting substrate; (2) a hole blocking layer; (3) a photogenerating layer comprised of the bisazo compounds of claim 1; and (4) an aryl amine hole transport layer.
Claim 22
Dependent Claim
25 words
An imaging member in accordance with claim 20 wherein there is included between the hole blocking layer and the azo photogenerating layer an adhesive layer.
Claim 23
Dependent Claim
17 words
An imaging member in accordance with claim 20 wherein the hole blocking layer is a metal oxide.
Claim 24
Dependent Claim
16 words
An imaging member in accordance with claim 20 wherein the hole blocking layer is a siloxane.
Claim 25
Dependent Claim
33 words
An imaging member in accordance with claim 20 wherein the charge transport aryl amine layer comprises molecules of the formula ##STR9## wherein X is selected from the group consisting of alkyl and halogen.
Claim 26
Dependent Claim
35 words
An imaging member in accordance with claim 24 wherein the bisazo photogenerating layer is comprised of the compounds selected from the group consisting of those represented by the formulas of FIGS. 1 to 19, respectively.
Claim 27
Dependent Claim
19 words
An imaging member in accordance with claim 20 wherein the supporting substrate is aluminum or an organic polymeric composition.
Claim 28
Dependent Claim
35 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 1; accomplishing development thereof; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 29
Dependent Claim
32 words
A method of imaging in accordance with claim 27 wherein the imaging member contains a photogenerating layer represented by those compounds as illustrated by the formulas of FIGS. 1 to 19, respectively.
Claim 30
Dependent Claim
23 words
A method of imaging in accordance with claim 27 wherein the imaging member has sensitivity of from about 400 to about 750 nanometers.
Claim 31
Independent Claim
45 words
A method of imaging which comprises generating an image in a light emitting diode printer; accomplishing development thereof with a developer composition comprised of resin particles and pigment particles; subsequently transferring the developed image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 32
Independent Claim
45 words
A method of imaging which comprises generating an image in a light emitting diode printer; accomplishing development thereof with a developer composition comprised of resin particles and pigment particles; subsequently transferring the developed image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 33
Dependent Claim
18 words
A method of imaging in accordance with claim 30 wherein the diode emits light at about 660 nanometers.
Claim 34
Dependent Claim
42 words
A photoconductive imaging member comprised of a photogenerating layer comprised of a bisazo compound of the formula ##STR10## wherein Cp is an azoic coupler selected from the group consisting of ##STR11## wherein Ar is an aromatic substitutent; and a charge transport layer.
Claim 35
Dependent Claim
42 words
A photoconductive imaging member comprised of a photogenerating layer comprised of a bisazo compound of the formula ##STR10## wherein Cp is an azoic coupler selected from the group consisting of ##STR11## wherein Ar is an aromatic substitutent; and a charge transport layer.
Claim 36
Dependent Claim
30 words
An imaging member comprised of (1) a hole blocking layer; (2) a photogenerating layer comprised of the bisazo compounds of claim 1; and (3) an aryl amine hole transport layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |