US4882254A
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Photoconductive imaging members with mixtures of photogenerator pigment compositions
Assignee: YELLOWSTONE DIAGNOSTICS Inc A CORP OF
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Filing: 1988-07-05
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Granted: 1989-11-21
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Expires: 2008-07-05
Abstract
Abstract A layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of a mixture of first and second pigments; and an aryl amine hole transport layer, said mixture comprised of perylenes and phthalocyanines; polycyclic quinones and phthalocyanines; and perinones and phthalocyanines.
Inventors
- 👤 Rafik O. Loutfy
- 👤 Ah-Mee Hor
- 👤 George Liebermann
- 👤 Alan J Toth
- 👤 Cheng-Kuo Hsiao
- 👤 Kathleen M. Carmichael
- 👤 Emery G. Tokoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:22
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0646; G03G5/0659; G03G5/0601; G03G5/0609; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/06144; G03G5/061443; G03G5/0657; G03G5/0664; G03G5/0696
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
90 words
A layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of a mixture of first and second pigments, said mixture being selected from the group consisting of perylenes and phthalocyanines; polycyclic quinones and phthalocyanines; and perinones and phthalocyanines; and a hole transport layer comprising molecules of the following formula ##STR6## dispersed in a resinous binder, and wherein X is selected from the group consisting of halogen and alkyl, wherein the imaging member exhibits photosensitivity in the wavelength range of from about 400 to about 900 nanometers.
Claim 2
Dependent Claim
90 words
A layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of a mixture of first and second pigments, said mixture being selected from the group consisting of perylenes and phthalocyanines; polycyclic quinones and phthalocyanines; and perinones and phthalocyanines; and a hole transport layer comprising molecules of the following formula ##STR6## dispersed in a resinous binder, and wherein X is selected from the group consisting of halogen and alkyl, wherein the imaging member exhibits photosensitivity in the wavelength range of from about 400 to about 900 nanometers.
Claim 3
Dependent Claim
48 words
A layered photoresponsive imaging member in accordance with claim 1 wherein the photogenerator perylenes are benzimidazole perylene, or N,N'-diphenyl-3,4,9,10-perylenebis(dicarboximide); the phthalocyanines are vanadyl phthalocyanine, or chloroindium phthalocyanine; the polycyclic quinones are chlorinated or brominated anthanthrone, and chlorinated or brominated pyranthrones; and the perinones are benzimidazole or naphthimidazole perinones.
Claim 4
Dependent Claim
39 words
A layered photoresponsive imaging member in accordance with claim 1 wherein the mixture is comprised of from about 10 to about 90 percent of the first pigment, and from about 90 to about 10 percent of the second pigment.
Claim 5
Dependent Claim
41 words
A layered photoresponsive imaging member in accordance with claim 1 wherein the aryl amine is comprised of molecules of the following formula ##STR7## dispersed in a resinous binder, and wherein X is selected from the group consisting of halogen and alkyl.
Claim 6
Dependent Claim
32 words
An imaging member in accordance with claim 1 wherein X is selected from (ortho) CH 3 , (meta) CH 3 , (para) CH 3 , (ortho) Cl, (meta) Cl, and (para) Cl.
Claim 7
Dependent Claim
30 words
An imaging member in accordance with claim 1 wherein the supporting substrate is comprised of a conductive metallic substance, or an insulating polymeric composition overcoated with an electrically conductive layer.
Claim 8
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the supporting substrate is aluminum.
Claim 9
Dependent Claim
19 words
An imaging member in accordance with claim 1 wherein the supporting substrate is overcoated with a polymeric adhesive layer.
Claim 10
Dependent Claim
17 words
An imaging member in accordance with claim 8 wherein the adhesive layer is comprised of a polyester.
Claim 11
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the aryl amine is N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1'-biphenyl]-4,4'-diamine.
Claim 12
Dependent Claim
17 words
An imaging member in accordance with claim 1 wherein the resinous binder is a polycarbonate or poly(vinylcarbazole).
Claim 13
Dependent Claim
59 words
An imaging member in accordance with claim 1 wherein the photogenerating pigment mixture is dispersed in a resinous binder in an amount of from about 5 percent to about 95 percent by volume, and the aryl amine hole transport molecules are dispersed in a resinous binder in an amount of from about 10 to about 75 percent by weight.
Claim 14
Dependent Claim
47 words
An imaging member in accordance with claim 12 wherein the resinous binder for the photogenerator pigments is a polyester, polyvinylcarbazole, polyvinylbutyral, a polycarbonate, or a phenoxy resin; and the resinous binder for the aryl amine hole transport material is a polycarbonate, a polyester, or a vinyl polymer.
Claim 15
Dependent Claim
27 words
An imaging member in accordance with claim 1 wherein the aryl amine hole transport layer is situated between the supporting substrate and a vacuum deposited photogenerating layer.
Claim 16
Dependent Claim
23 words
An imaging member in accordance with claim 14 comprised of a supporting substrate, and a photogenerator layer comprised of a mixture of pigments.
Claim 17
Dependent Claim
30 words
An imaging member in accordance with claim 15 wherein the supporting substrate is comprised of a conductive metallic substance, or an insulating polymeric composition overcoated with an electrically conductive layer.
Claim 18
Dependent Claim
14 words
An imaging member in accordance with claim 16 wherein the supporting substrate is aluminum.
Claim 19
Dependent Claim
20 words
An imaging member in accordance with claim 16 wherein the supporting substrate is overcoated with a thin polymeric adhesive layer.
Claim 20
Dependent Claim
32 words
An imaging member in accordance with claim 15 wherein X is selected from (ortho) CH 3 , (meta) CH 3 , (para) CH 3 , (ortho) Cl, (meta) Cl, and (para) Cl.
Claim 21
Dependent Claim
14 words
An imaging member in accordance with claim 19 wherein the aryl amine is N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1'-biphenyl]-4,4'-diamine.
Claim 22
Dependent Claim
17 words
An imaging member in accordance with claim 15 wherein the resinous binder is a polycarbonate or poly(vinylcarbazole).
Claim 23
Dependent Claim
57 words
An imaging member in accordance with claim 15 wherein the pigments are dispersed in a resinous binder in an amount of from about 5 percent to about 95 percent by volume, and the aryl amine hole transport molecules are dispersed in a resinous binder in an amount of from about 10 to about 75 percent by weight.
Claim 24
Dependent Claim
39 words
A method of imaging which comprises forming an electrostatic latent image on the imaging member of claim 1; affecting development thereof with toner particles; subsequently transferring the developed image to a suitable substrate; and permanently affixing the image thereto.
Claim 25
Dependent Claim
39 words
A method of imaging which comprises forming an electrostatic latent image on the imaging member of claim 14; affecting development thereof with toner particles; subsequently transferring the developed image to a suitable substrate; and permanently affixing the image thereto.
Claim 26
Dependent Claim
38 words
An imaging member in accordance with claim 1 wherein the photogenerating mixture is comprised of a 1:1 ratio of benzimidazole perylene and vanadyl phthalocyanine dispersed in from about 30 to about 50 weight percent in a resinous binder.
Claim 27
Dependent Claim
48 words
An imaging member in accordance with claim 1 wherein the mixture is comprised of vanadyl phthalocyanine and dibromoanthanthrone in a ratio of from about 1:1 to about 1:3 ratio by weight dispersed in a resinous binder in an amount of from about 30 to about 50 weight percent.
Claim 28
Dependent Claim
44 words
An imaging member in accordance with claim 1 wherein the mixture of pigments comprises phthalocyanines and perylenes selected from the group consisting of: ##STR8## wherein X is o-phenylene, pyridimediyl, pyrimidinediyl, phenanthrenediyl, naphthalenediyl, and the corresponding methyl, nitro, chloro, and methoxy substituted derivatives; and ##STR9##
Claim 29
Dependent Claim
43 words
An imaging member in accordance with claim 27 wherein the perylene is a mixture of the cis and trans isomers of the following formulae: ##STR10## wherein X is o-phenylene, pyridimediyl, pyrimidinediyl, phenanthrenediyl, naphthalenediyl, and the corresponding methyl, nitro, chloro, and methoxy substituted derivatives.
Claim 30
Dependent Claim
17 words
An imaging member in accordance with claim 27 wherein the perylene is of the following formula: ##STR11##
Claim 31
Dependent Claim
34 words
An imaging member in accordance with claim 1 wherein the mixture of pigments comprises phthalocyanines and polycyclic quinones selected from the group consisting of anthanthrone, halogenated anthanthrones, pyranthrone, halogenated pyranthrones, dibenzyrenequinone, and halogenated dibenzyrenequinones.
Claim 32
Dependent Claim
23 words
An imaging member in accordance with claim 30 wherein the polycyclic quinone is selected from the group consisting of anthanthrone and halogenated anthanthrones.
Claim 33
Dependent Claim
23 words
An imaging member in accordance with claim 30 wherein the polycyclic quinone is selected from the group consisting of pyranthrone and halogenated pyranthrones.
Claim 34
Dependent Claim
23 words
An imaging member in accordance with claim 30 wherein the polycyclic quinone is selected from the group consisting of dibenzyrenequinone and halogenated dibenzyrenequinones.
Claim 35
Dependent Claim
28 words
An imaging member in accordance with claim 1 wherein the mixture of pigments comprises phthalocyanines and perinones selected from the group consisting of benzimidazole perinones and naphthimidazole perinones.
Claim 36
Dependent Claim
15 words
An imaging member in accordance with claim 34 wherein the perinone is a benzimidazole perinone.
Claim 37
Dependent Claim
15 words
An imaging member in accordance with claim 34 wherein the perinone is a naphthimidazole perinone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |