Patent US4559287A successfully refreshed from Google Patents.
US4559287A
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US
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Stabilized photoresponsive devices containing electron transporting layers
Assignee: Xerox Corp
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Filing: 1984-11-13
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Granted: 1985-12-17
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Expires: 2004-11-13
Abstract
Abstract An improved photoresponsive imaging member consisting essentially of a supporting substrate, a photogenerating layer, comprised of a photogenerating pigment optionally dispersed in an inactive resinous binder, an electron transporting layer comprised of derivatives of fluorenylidene methane dispersed in a resinous binder, and having incorporated therein a stabilizing amount of an aryl amine electron donating compound.
Inventors
- 👤 T. Brian McAneney
- 👤 Rafik O. Loutfy
- 👤 Beng S. Ong
- 👤 Zoran D. Popovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0605; G03G5/0607; G03G5/0609; G03G5/0618; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
48 words
An improved photoresponsive imaging member consisting essentially of a supporting substrate, a photogenerating layer, comprised of a photogenerating pigment, an electron transporting layer comprised of derivatives of fluorenylidene methane dispersed in a resinous binder, and having incorporated therein a stabilizing amount of an aryl amine electron donating compound.
Claim 2
Dependent Claim
48 words
An improved photoresponsive imaging member consisting essentially of a supporting substrate, a photogenerating layer, comprised of a photogenerating pigment, an electron transporting layer comprised of derivatives of fluorenylidene methane dispersed in a resinous binder, and having incorporated therein a stabilizing amount of an aryl amine electron donating compound.
Claim 3
Dependent Claim
15 words
A photoresponsive imaging member in accordance with claim 1, wherein the supporting substrate is aluminum.
Claim 4
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 1, wherein the photogenerating layer is selected from the group consisting of inorganic photogenerating pigments, and organic photogenerating pigments.
Claim 5
Dependent Claim
25 words
A photoresponsive imaging member in accordance with claim 3, wherein the photogenerating pigments are selected from the group consisting of metal phthalocyanines, and metal-free phthalocyanines.
Claim 6
Dependent Claim
15 words
A photoresponsive imaging member in accordance with claim 4, wherein the phthalocyanine is vanadyl phthalocyanine.
Claim 7
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 3, wherein the photogenerating layer is comprised of trigonal selenium.
Claim 8
Dependent Claim
73 words
A photoresponsive imaging member in accordance with claim 1, wherein the electron transporting derivative is of the formula ##STR4## wherein X and Y are selected from the group consisting of cyano groups, (CN) and alkoxycarbonyl broups (COOR) A, B, and W, are independently selected from electron withdrawing groups including acyl, alkoxycarbonyl, nitro, alkylaminocarbonyl, or derivatives thereof, m is a number of from 0 to about 2, and n is the 0 or 1.
Claim 9
Dependent Claim
19 words
A photoresponsive imaging member in accordance with claim 1, wherein the electron transporting derivative is of the formula ##STR5##
Claim 10
Dependent Claim
19 words
A photoresponsive imaging member in accordance with claim 1, wherein the electron transporting derivative is of the formula ##STR6##
Claim 11
Dependent Claim
30 words
A photoresponsive imaging member in accordance with claim 1, wherein the electron donating compound is present in an amount of from about 1 percent to about 25 percent by weight.
Claim 12
Dependent Claim
38 words
A photoresponsive imaging member in accordance with claim 1, wherein the electron donating stabilizing composition is comprised of a aryl diamine of the following formula: ##STR7## wherein X is selected from the group consisting of alkyl, and halogens.
Claim 13
Dependent Claim
37 words
A photoresponsive imaging member in accordance with claim 11, where X is selected from the group consisting of ortho CH 3 , meta CH 3 , para CH 3 , ortho Cl, meta Cl, and para Cl.
Claim 14
Dependent Claim
16 words
A photoresponsive imaging member in accordance with claim 11, wherein the aryl amine is N,N'-diphenyl-N,N'-bis(3 methylphenyl)-[1,1'-biphenyl]-4,4'-diamine.
Claim 15
Dependent Claim
23 words
A photoresponsive imaging member in accordance with claim 11, wherein the resinous binder for the electron transporting layer is comprised of polycarbonate resins.
Claim 16
Dependent Claim
42 words
A photoresponsive imaging member in accordance with claim 11, wherein the aryl amine is present in an amount of from about 7 percent by weight to about 35 percent by weight, and wherein crystallization of the electron transporting compound is substantially eliminated.
Claim 17
Dependent Claim
20 words
A photoresponsive imaging member in accordance with claim 1, wherein the photogenerating pigment is dispersed in an inactive resinous binder.
Claim 18
Dependent Claim
17 words
An improved imaging member in accordance with claim 15, wherein the resinous binder is a phenoxy polymer.
References Cited (Backward Citations)
US3169060A
Cited
US3275684A
Cited
US3331687A
Cited
US3607257A
Cited
US3819693A
Cited
US4315981A
Cited
US4013623A
Cited
US4115116A
Cited
US4135928A
Cited
US4047949A
Cited
US4474865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |