US4792508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic photoconductive imaging members with cis, trans perylene isomers
Assignee: Xerox Corp
•
Filing: 1987-06-29
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Granted: 1988-12-20
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Expires: 2007-06-29
Abstract
Abstract An improved layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of cis and trans naphthalene imidazole perylene component of the following formula; ##STR1## and an aryl amine hole transport layer dispersed in a resinous binder.
Inventors
- 👤 Peter M. Kazmaier
- 👤 Richard A. Burt
- 👤 Ah-Mee Hor
- 👤 Cheng-Kuo Hsiao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:45
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/22; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0646; G03G5/0659
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
40 words
An improved layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of cis and trans naphthalene imidazole perylene component of the following formula; ##STR4## and an aryl amine hole transport layer dispersed in a resinous binder.
Claim 2
Dependent Claim
40 words
An improved layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of cis and trans naphthalene imidazole perylene component of the following formula; ##STR4## and an aryl amine hole transport layer dispersed in a resinous binder.
Claim 3
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 4
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the supporting substrate is aluminum.
Claim 5
Dependent Claim
19 words
An imaging member in accordance with claim 1 wherein the supporting substrate is overcoated with a polymeric adhesive layer.
Claim 6
Dependent Claim
16 words
An imaging member in accordance with claim 4 wherein the adhesive layer is a polyester resin.
Claim 7
Dependent Claim
14 words
An imaging member in accordance with claim 4 further including an interfacial silane layer.
Claim 8
Dependent Claim
39 words
An imaging member in accordance with claim 1 wherein the aryl amine charge transporting layer comprises molecules of the formula: ##STR5## dispersed in a resinous binder and wherein X is selected from the group consisting of halogen and alkyl.
Claim 9
Dependent Claim
32 words
An imaging member in accordance with claim 7 wherein X is selected from (ortho) CH 3 , (meta) CH 3 , (para) CH 3 , (ortho) Cl, (meta) Cl, and (para) Cl.
Claim 10
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 11
Dependent Claim
18 words
An imaging member in accordance with claim 1 wherein the resinous binder is a polycarbonate or polyvinyl carbazole.
Claim 12
Dependent Claim
58 words
An imaging member in accordance with claim 1 wherein the perylene 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 13
Dependent Claim
31 words
An imaging member in accordance with claim 11 wherein the resinous binder for the perylene pigments is a polyester, a polyvinyl carbazole, a polyvinyl butyral, a polycarbonate, or a phenoxy resin.
Claim 14
Dependent Claim
25 words
An imaging member in accordance with claim 1 wherein the aryl amine hole transport layer is situated between the supporting substrate and the photogenerating layer.
Claim 15
Dependent Claim
26 words
An imaging member in accordance with claim 1 wherein the cis isomer is present in an amount of from about 30 percent to about 70 percent.
Claim 16
Dependent Claim
26 words
An imaging member in accordance with claim 1 wherein the trans isomer is present in an amount of from 30 percent about to about 70 percent.
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 15 wherein the supporting substrate is aluminum.
Claim 19
Dependent Claim
21 words
An imaging member in accordance with claim 16 wherein the supporting conductive substrate is overcoated with a thin polymeric adhesive layer.
Claim 20
Dependent Claim
40 words
A method of imaging which comprises forming an electrostatic latent image on the imaging member of claim 1 causing development thereof with a toner composition; subsequently transferring the developed image to a suitable substrate; and permanently affixing the image thereto.
Claim 21
Dependent Claim
26 words
A method of imaging in accordance with claim 19 wherein the member is sensitive at a wavelength region of from about 450 to about 780 nanometers.
Claim 22
Dependent Claim
50 words
A method of imaging in accordance with claim 19 wherein the imaging member contains a photogenerating pigment from with about 30 to 70 percent of the cis naphthalene imidazole, and from about 70 to about 30 percent by weight of the trans naphthalene imidazole of the formula of claim 1.
Claim 23
Dependent Claim
22 words
An imaging member in accordance with claim 1 with photosensitivity in a wavelength region of from about 450 to about 800 nanometers.
Claim 24
Dependent Claim
22 words
An imaging member in accordance with claim 1 wherein the photogenerating layer is formulated by the vacuum deposition on the supporting substrate.
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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) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |