US4559286A
Expired / Lapsed
US
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Mixed squaraine photoconductive compositions
Assignee: Xerox Corp
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Filing: 1984-09-13
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Granted: 1985-12-17
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Expires: 2004-09-13
Abstract
Abstract An improved process for the preparation of mixed squaraine compositions which comprises reacting squaric acid, an aromatic amine, and a fluoroaniline, in the presence of an aliphatic alcohol, and an optional azeotropic substance. Also disclosed are mixed squaraine composition products of the following formulas: <IMAGE> I <IMAGE> II <IMAGE> III
Inventors
- 👤 Peter M. Kazmaier
- 👤 Giuseppa Baranyi
- 👤 Cheng-Kuo Hsiao
- 👤 Richard A. Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:15
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0698; C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0034; G03G5/0601; G03G5/0609; G03G5/0611
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
50 words
An imaging member comprised of a supporting substrate; the mixed squaraine composition comprised of components I, II, and III ##STR7## as a photogenerating pigment wherein fluorine is present in an amount of from about 0.050 to about 5 percent by weight; and in contact therewith an arylamine hole transport layer.
Claim 2
Dependent Claim
50 words
An imaging member comprised of a supporting substrate; the mixed squaraine composition comprised of components I, II, and III ##STR7## as a photogenerating pigment wherein fluorine is present in an amount of from about 0.050 to about 5 percent by weight; and in contact therewith an arylamine hole transport layer.
Claim 3
Dependent Claim
35 words
An imaging member in accordance with claim 1, wherein the components are present in the proportions I 98.50, to II 1.43, to III 0.07; to about I 41.36, to II 52.20, and III to 6.44.
Claim 4
Dependent Claim
13 words
An imaging member in accordance with claim 1 wherein the arylamine is N,N'-diphenyl-N,N'-bis(3-methylphenyl)1,1'-biphenyl-4,4'-diamine.
Claim 5
Dependent Claim
23 words
An imaging member in accordance with claim 1 wherein the hole transport layer is situated between the supporting substrate and the photogenerating pigment.
Claim 6
Dependent Claim
20 words
An imaging member in accordance with claim 1 further including therein an adhesive layer and a silane hole blocking layer.
Claim 7
Dependent Claim
43 words
An imaging member in accordance with claim 1 wherein the arylamine hole transport layer comprises molecules of the formula ##STR8## wherein X is selected from the group consisting of alkyl and halogen, and wherein the molecules are dispersed in an inactive resinous binder.
Claim 8
Dependent Claim
50 words
An improved photoresponsive imaging member comprised of a supporting substrate; an inorganic photogenerating layer; a photoconductive layer comprised of the squaraine components I, II and III, ##STR9## wherein fluorine is present in an amount of from about 0.050 to about 6 percent by weight; and an arylamine hole transport layer.
Claim 9
Dependent Claim
50 words
An improved photoresponsive imaging member comprised of a supporting substrate; an inorganic photogenerating layer; a photoconductive layer comprised of the squaraine components I, II and III, ##STR9## wherein fluorine is present in an amount of from about 0.050 to about 6 percent by weight; and an arylamine hole transport layer.
Claim 10
Dependent Claim
20 words
An imaging member in accordance with claim 7 further including a hole blocking layer and an optional adhesive interface layer.
Claim 11
Dependent Claim
30 words
An imaging member in accordance with claim 7 wherein the inorganic photogenerating layer contains therein substances selected from the group consisting of amorphous selenium, amorphous selenium alloys, and trigonal selenium.
Claim 12
Dependent Claim
16 words
An imaging member in accordance with claim 7 wherein the photogenerating layer contains therein vanadyl phthalocyanine.
Claim 13
Dependent Claim
16 words
An imaging member in accordance with claim 7 wherein the arylamine hole transport molecule is N,N'-diphenyl-N,N'-bis(3-methylphenyl)1,1'-biphenyl-4,4'-diamine.
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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) | 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 |