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US4418133A
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Disazo photoconductive material and electrophotographic photosensitive member having disazo pigment layer
Assignee: Canon Inc
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Filing: 1982-03-04
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Granted: 1983-11-29
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Expires: 2002-03-04
Abstract
Abstract An organic photoconductive material represented by the formula ##STR1## wherein A is an atomic group necessary for completing a substituted or unsubstituted aromatic hydrocarbon ring, Ar is a substituted or unsubstituted group, and Cp is a coupler residue.
Inventors
- 👤 Kazuharu Katagiri
- 👤 Shoji Umehara
- 👤 Katsunori Watanabe
- 👤 Shozo Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:49
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0661; C; C09; C09B; C09B35/00; C09B35/02; C09B35/039; C09B35/34; G03G5/0601; G03G5/0605; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/06147; G03G5/0624; G03G5/0627; G03G5/0629; G03G5/0631; G03G5/0633; G03G5/0635; G03G5/0637; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067; G03G5/0672; G03G5/0674; G03G5/0675; G03G5/0679
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
39 words
An organic photoconductive material represented by the formula ##STR114## wherein A is an atomic group necessary for completing a substituted or unsubstituted aromatic hydrocarbon ring, Ar is a substituted or unsubstituted arylene group, and Cp is a coupler residue.
Claim 2
Dependent Claim
39 words
An organic photoconductive material represented by the formula ##STR114## wherein A is an atomic group necessary for completing a substituted or unsubstituted aromatic hydrocarbon ring, Ar is a substituted or unsubstituted arylene group, and Cp is a coupler residue.
Claim 3
Dependent Claim
44 words
An organic photoconductive material according to claim 1, which is represented by the following formula (1): ##STR115## wherein Ar is a substituted or unsubstituted arylene group, Cp is a coupler residue, and R 1 and R 2 are hydrogen, halogen, or monovalent organic residue.
Claim 4
Dependent Claim
32 words
An organic photoconductive material according to claim 1, which is represented by the following formula (2): ##STR116## wherein Ar is a substituted or unsubstituted arylene group and Cp is a coupler residue.
Claim 5
Dependent Claim
39 words
An organic photoconductive material according to claim 1, wherein said coupler residue is a residue derived from a coupler selected from the group consisting of hydroxynaphthoic acid amide type couplers, hydroxynaphthalic acid imide type couplers, and aminonaphthol type couplers.
Claim 6
Dependent Claim
97 words
An organic photoconductive material according to claim 4, wherein said coupler residue derived from a hydroxynaphthoic acid amide type coupler is represented by the following formula (3): ##STR117## wherein X is an atomic group necessary for completing substituted or unsubstituted aromatic hydrocarbon ring, or substituted or unsubstituted heterocyclic ring; Y is ##STR118## or hydrogen; R 3 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and R 4 is substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclic residue, or substituted or unsubstituted amino.
Claim 7
Dependent Claim
50 words
An organic photoconductive material according to claim 4, wherein said coupler residue derived from a hydroxyphthalic acid imide type coupler is represented by the following formula (4) or (5); ##STR119## wherein R 5 and R 6 are substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl.
Claim 8
Dependent Claim
60 words
An organic photoconductive material according to claim 4, wherein said coupler residue derived from an aminonaphthol type coupler is represented by the following formula (6) or (7): ##STR120## wherein R 7 and R 9 are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and R 8 and R 10 are substituted or unsubstituted aryl.
Claim 9
Dependent Claim
21 words
An organic photoconductive material according to claim 1, wherein said Ar is substituted or unsubstituted phenylene, or substituted or unsubstituted naphthylene.
Claim 10
Dependent Claim
49 words
An electrophotographic photosensitive member characterized by having a layer which contains a disazo pigment represented by the formula ##STR121## wherein A is an atomic group necessary for completing a substituted or unsubstituted aromatic hydrocarbon ring, Ar is a substituted or unsubstituted arylene group, and Cp is a coupler residue.
Claim 11
Dependent Claim
49 words
An electrophotographic photosensitive member characterized by having a layer which contains a disazo pigment represented by the formula ##STR121## wherein A is an atomic group necessary for completing a substituted or unsubstituted aromatic hydrocarbon ring, Ar is a substituted or unsubstituted arylene group, and Cp is a coupler residue.
Claim 12
Dependent Claim
47 words
An electrophotographic photosensitive member according to claim 9, wherein said disazo pigment is represented by the following formula (1): ##STR122## wherein Ar is a substituted or unsubstituted arylene group, Cp is a coupler residue, and R 1 and R 2 are hydrogen, halogen, or monovalent organic residue.
Claim 13
Dependent Claim
35 words
An electrophotographic photosensitive member according to claim 9, wherein said disazo pigment is represented by the following formula (2): ##STR123## wherein Ar is a substituted or unsubstituted arylene group and Cp is a coupler residue.
Claim 14
Dependent Claim
39 words
An electrophotographic photosensitive member according to claim 11, wherein said coupler residue is a residue derived from a coupler selected from the group consisting of hydroxynaphthoic acid amide type couplers, hydroxynaphthalic acid imide type couplers, and aminonaphthol type couplers.
Claim 15
Dependent Claim
97 words
An electrophotographic photosensitive member according to claim 12, wherein said coupler residue derived from a hydroxynaphthoic acid amide type coupler is represented by the following formula (3): ##STR124## wherein X is an atomic group necessary for completing substituted or unsubstituted aromatic hydrocarbon ring, or substituted or unsubstituted heterocyclic ring; Y is ##STR125## or hydrogen; R 3 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and R 4 is substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclic residue, or substituted or unsubstituted amino.
Claim 16
Dependent Claim
49 words
A electrophotographic photosensitive member according to claim 12, said coupler residue derived from a hydroxynaphthalic acid imide type coupler is represented by the following formula (4) or (5): ##STR126## wherein R 5 and R 6 are substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl.
Claim 17
Dependent Claim
62 words
An electrophotographic photosensitive member according to claim 12, wherein said coupler residue derived from an aminonaphthol type coupler is represented by the following formula (6) or (7): ##STR127## (6) ##STR128## (7)wherein R 7 and R 9 are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl; and R 8 and R 10 are substituted or unsubstituted aryl.
Claim 18
Dependent Claim
21 words
An electrophotographic photosensitive member according to claim 9, wherein said Ar is substituted or unsubstituted phenylene, or substituted or unsubstituted naphthylene.
Claim 19
Dependent Claim
33 words
An electrophotographic photosensitive member according to claim 9, wherein said photosensitive member comprises a conductive substrate, a charge generation layer containing the disazo pigment represented by formula (I), and a charge transport layer.
Claim 20
Dependent Claim
24 words
An electrophotographic photosensitive member according to claim 17, wherein said charge generation layer comprises a binder and the disazo pigment represented by formula (I).
Claim 21
Dependent Claim
20 words
An electrophotographic photosensitive member according to claim 17, wherein said charge transport layer is coated on the charge generation layer.
Claim 22
Dependent Claim
42 words
An electrophotographic photosensitive member according to claim 18, wherein said binder is selected from the group consisting of polyvinyl butyral, polyvinyl acetate, polyesters, polycarbonates, phenoxy resins, acryl resins, polyacrylamide, polyamides, polyvinyl pyridine, cellulose resins, polyurethane resins, epoxy resins, casein and polyvinyl alcohol.
Claim 23
Dependent Claim
24 words
An electrophotographic photosensitive member according to claim 17, wherein said charge transport layer comprises a binder and at least one of charge transporting compounds.
Claim 24
Dependent Claim
32 words
An electrophotographic photosensitive member according to claim 21, wherein said charge transporting compound is selected from the group consisting of hydrazones, pyrazolines, polyaryl-alkanes, oxadiazoles, anthracenes, oxazoles, thiazoles, carbazoles, photoconductive polymers and fluorenones.
Claim 25
Dependent Claim
17 words
An electrophotographic photosensitive member according to claim 22, wherein said charge transporting compound is selected from hydrazones.
Claim 26
Dependent Claim
24 words
An electrophotographic photosensitive member according to claim 21, wherein said binder is selected from the group consisting of acryl resins, polystyrene, polyesters and polycarbonates.
Claim 27
Dependent Claim
37 words
An electrophotographic photosensitive member according to claim 9, wherein the photosensitive member comprises an electrically conductive substrate and a photosensitive layer containing the disazo pigments represented by formula (I) and at least one of charge transporting compounds.
Claim 28
Dependent Claim
25 words
An electrophotographic photosensitive member according to claim 19, wherein said photosensitive member comprises a adhesive layer between the charge generation layer and the conductive layer.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |