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Patent US4557989A successfully refreshed from Google Patents.
US4557989A
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Photoresponsive imaging members with dihydroxy metal phthalocyanine compositions
Assignee: Xerox Corp
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Filing: 1984-09-13
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Granted: 1985-12-10
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Expires: 2004-09-13
Abstract
Abstract Disclosed is an improved layered photoresponsive imaging member comprised of (1) a supporting substrate, (2) a photogenerating layer comprised of a dihydroxymetallic phthalocyanine, especially those selected from the group consisting of dihydroxygermanium phthalocyanine, dihydroxytin phthalocyanine and dihydroxysilicon phthalocyanine, and (3) a diamine hole transport layer comprised of an arylamine dispersed in an inactive resinous binder composition.
Inventors
- 👤 Randolph E. Branston
- 👤 James M. Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:50
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0696
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
53 words
An improved layered photoresponsive imaging member comprised of (1) a supporting substrate, (2) a photogenerating layer comprised of a dihydroxymetallic phthalocyanine pigment selected from the group consisting of dihydroxygermanium phthalocyanine, dihydroxytin phthalocyanine and dihydroxysilicon phthalocyanine, and (3) a diamine hole transport layer comprised of an arylamine dispersed in an inactive resinous binder composition.
Claim 2
Dependent Claim
53 words
An improved layered photoresponsive imaging member comprised of (1) a supporting substrate, (2) a photogenerating layer comprised of a dihydroxymetallic phthalocyanine pigment selected from the group consisting of dihydroxygermanium phthalocyanine, dihydroxytin phthalocyanine and dihydroxysilicon phthalocyanine, and (3) a diamine hole transport layer comprised of an arylamine dispersed in an inactive resinous binder composition.
Claim 3
Dependent Claim
24 words
An imaging member in accordance with claim 1 wherein the diamine hole transport layer is situated between the supporting substrate and the photogenerating layer.
Claim 4
Dependent Claim
24 words
An imaging member in accordance with claim 1 wherein the photogenerating layer is situated between the supporting substrate, and the diamine hole transport layer.
Claim 5
Dependent Claim
17 words
An imaging member in accordance with claim 1 wherein the photogenerating layer is comprised of dihydroxygermanium phthalocyanine.
Claim 6
Dependent Claim
14 words
An imaging member in accordance with claim 1 wherein the supporting substrate is conductive.
Claim 7
Dependent Claim
19 words
An imaging member in accordance with claim 1 wherein the photogenerating pigment is dispersed in a resinous binder composition.
Claim 8
Dependent Claim
26 words
An imaging member in accordance with claim 6, wherein the resinous binder is selected from the group consisting of polyesters, polyvinylcarbazole, polyvinylbutyral, polycarbonates, and phenoxy resins.
Claim 9
Dependent Claim
43 words
An imaging member in accordance with claim 1 wherein arylamine hole transport composition comprises molecules of the formula: ##STR2## dispersed in a highly insulating and transparent organic resinous material wherein X is selected from the group consisting of alkyl groups, and halogen groups.
Claim 10
Dependent Claim
36 words
An imaging member in accordance with claim 8 wherein X is selected from the group consisting of ortho (CH 3 ), meta (CH 3 ), para (CH 3 ), ortho (Cl), metal (Cl), and para (Cl).
Claim 11
Dependent Claim
26 words
An imaging member in accordance with claim 8 wherein the resinous binder for the hole transport material is a polyester, a polycarbonate, or a vinyl polymer.
Claim 12
Dependent Claim
15 words
An imaging member in accordance with claim 8 wherein the diamine is comprised of N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1-biphenyl]-4,4'-diamine.
References Cited (Backward Citations)
US3094535A
Cited
US3094536A
Cited
US3816118A
Cited
US3926629A
Cited
US3895944A
Cited
US4311775A
Cited
JPS57146255A
Cited
US4426434A
Cited
US4443528A
Cited
JPS5949544A
Cited
US4471039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |