Patent US4647520A successfully refreshed from Google Patents.
US4647520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic photoreceptor containing an azo compound
Assignee: Konica Minolta Inc
•
Filing: 1985-09-27
•
Granted: 1987-03-03
•
Expires: 2005-09-27
Abstract
Abstract A photoreceptor comprising a photosensitive layer and an electroconductive support, wherein the photosensitive layer contains an azo compound represented by the following Formula [I]: ##STR1## wherein A is a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, B is an oxygen atom or a sulfur atom; R is a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom; and Cp is ##STR2## wherein Z represents a group of atoms necessary for constituting a substituted or unsubstituted aromatic carbon ring, or a substituted or unsubstituted aromatic heterocyclic ring; Y is a substituted or unsubstituted carbamoyl group or a substituted or unsubstituted sulfamoyl group; R 1 is a hydrogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted carbamoyl group, a carboxy group and the esters thereof, or cyano group; A' is a substituted or unsubstituted aryl group; R 2 and R 3 are a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, respectively.
Inventors
- 👤 Kazumasa Watanabe
- 👤 Satoru Ikeuchi
- 👤 Osamu Sasaki
- 👤 Naohiro Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:37
CPC Classifications
C; C07; C07D; C07D279/00; C07D279/10; C07D279/14; C07D279/18; C07D279/20; C07D265/00; C07D265/28; C07D265/34; C07D265/38; C07D279/22; C09; C09B; C09B35/00; C09B35/02; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0675; G03G5/0679; G03G5/0681
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
168 words
A photoreceptor comprising a photosensitive layer and an electroconductive support, wherein said photosensitive layer contains an azo compound represented by the following Formula [I]; ##STR242## wherein A is a substituted or unsubstituted alkyl group, or a substituted or unsubstituted arlyl group, B is oxygen atom or sulfur atom; R is hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom; and Cp is ##STR243## wherein Z represents a group of atoms necessary for constituting a substituted or unsubstituted aromatic carbon ring, or a substituted or unsubstituted aromatic heterocyclic ring; Y is a substituted or unsubstituted carbamoyl group or a substituted or unsubstituted sulfamoyl group; R 1 is hydrogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted carbamoyl group, a carboxy group and the esters thereof, or cyano group; A' is a substituted or unsubstituted aryl group; R 2 and R 3 are a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, respectively.
Claim 2
Dependent Claim
168 words
A photoreceptor comprising a photosensitive layer and an electroconductive support, wherein said photosensitive layer contains an azo compound represented by the following Formula [I]; ##STR242## wherein A is a substituted or unsubstituted alkyl group, or a substituted or unsubstituted arlyl group, B is oxygen atom or sulfur atom; R is hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom; and Cp is ##STR243## wherein Z represents a group of atoms necessary for constituting a substituted or unsubstituted aromatic carbon ring, or a substituted or unsubstituted aromatic heterocyclic ring; Y is a substituted or unsubstituted carbamoyl group or a substituted or unsubstituted sulfamoyl group; R 1 is hydrogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted carbamoyl group, a carboxy group and the esters thereof, or cyano group; A' is a substituted or unsubstituted aryl group; R 2 and R 3 are a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, respectively.
Claim 3
Dependent Claim
11 words
The photoreceptor of claim 1, wherein said B is oxygen atom.
Claim 4
Dependent Claim
11 words
The photoreceptor of claim 1, wherein said B is sulfur atom.
Claim 5
Dependent Claim
34 words
The photoreceptor of claim 2 or 3, wherein said A is a group represented by the following formula; ##STR244## wherein R' is hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom.
Claim 6
Dependent Claim
16 words
The photoreceptor of claim 2, wherein said compound is represented by the following Formula [II]; ##STR245##
Claim 7
Dependent Claim
16 words
The photoreceptor of claim 3, wherein said compound is represented by the following Formula [III]; ##STR246##
Claim 8
Dependent Claim
16 words
The photoreceptor of claim 2, wherein said compound is represented by the following Formula [IV]; ##STR247##
Claim 9
Dependent Claim
16 words
The photoreceptor of claim 3, wherein said compound is represented by the following Formula [V]; ##STR248##
Claim 10
Dependent Claim
16 words
The photoreceptor of claim 5, wherein said compound is represented by the following Formula [VI]; ##STR249##
Claim 11
Dependent Claim
16 words
The photoreceptor of claim 6, wherein said compound is represented by the following Formula [VII]; ##STR250##
Claim 12
Dependent Claim
16 words
The photoreceptor of claim 7, wherein said compound is represented by the following Formula [VIII]; ##STR251##
Claim 13
Dependent Claim
16 words
The photoreceptor of claim 8, wherein said compound is represented by the following Formula [IX]; ##STR252##
Claim 14
Dependent Claim
14 words
The photoreceptor of claim 5, 6, 7, or 8, R is a hydrogen atom.
Claim 15
Dependent Claim
16 words
The photoreceptor of claim 9, 10, 11, or 12, R and R' is a hydrogen atom.
Claim 16
Dependent Claim
36 words
The photoreceptor of claim 1, wherein said photosensitive layer consists of a carrier generation layer which contains said azo compound as a carrier generating substance and a carrier transport layer which contains a carrier transporting substance.
Claim 17
Dependent Claim
50 words
The photoreceptor of claim 15, wherein said carrier transporting substance is selected from the group consisting of trinitrofluorenone, tetronitrofluorenone, poly-N-vinylcarbazole, a triazole derivative, oxadiazole derivative, imidazol derivative, a pyrazolone derivative, polyaryl alkane derivative, phenylene diamine derivative, hydrazone derivative, amine substituted alkene derivative, triaryl amine derivative, carbazole derivative, and stylbene derivative.
Claim 18
Dependent Claim
23 words
The photoreceptor of claim 15, wherein said carrier generation layer has the thickness in the range of from 0.01 μm to 20 μm.
Claim 19
Dependent Claim
23 words
The photoreceptor of claim 15, wherein said carrier transport layer has the thickness in the range of from 5 μm to 30 μm.
Claim 20
Dependent Claim
28 words
The photoreceptor of claim 1, wherein said photosensitive layer is a single layer which contains said azo compound as a carrier generating substance and a carrier transporting substance.
Claim 21
Dependent Claim
50 words
The photoreceptor of claim 19, wherein said carrier transporting substance is selected from the group consisting of trinitrofluorenone, tetranitrofluorenone, poly-N-vinylcarbazole, a triazol derivative, oxadiazol derivative, imidazol derivative, a pyrazolone derivative, polyaryl alkane derivative, phenylene diamine derivative, hydrazone derivative, amine substituted alkene derivative, triaryl amine derivative, carbazole derivative, and stylbene derivative.
Claim 22
Dependent Claim
25 words
The photoreceptor of claim 1, wherein the photosensitive layer is a single layer which consists essentially of a binder and said azo compound dispersed therein.
Claim 23
Dependent Claim
15 words
The photoreceptor of claim 15, 19, or 21, wherein said photoreceptor has an intermediate layer.
Claim 24
Dependent Claim
12 words
The photoreceptor of claim 15, wherein said photoreceptor has an overcoat layer.
Claim 25
Dependent Claim
29 words
The photoreceptor of claim 2 or 3, wherein said A is an ethyl group, propyl group, pentyl group, methoxyethyl group, hydroxyethyl group, benzyl group, phenethyl group, or chlorophenyl group.
Claim 26
Dependent Claim
40 words
The photoreceptor of claim 2 or 3, wherein said Z is the group of atoms necessary for constituting a substituted or unsubstituted benzene ring, substituted or unsubstituted naphthalene ring, substituted or unsubstituted indole ring, or substituted or unsubstituted carbazole ring.
Claim 27
Dependent Claim
16 words
The photoreceptor of claim 2 or 3, wherein A is a substituted or unsubstituted phenyl group.
References Cited (Backward Citations)
US3798031A
Cited
US4299896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |