US5494765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotosensitive material using a phenylenediamine derivative
Assignee: Kyocera Mita Industrial Co Ltd
•
Filing: 1994-09-26
•
Granted: 1996-02-27
•
Expires: 2014-09-26
Abstract
Abstract The present invention relates to a novel phenylenediamine derivative of the general formula (1): ##STR1## wherein R 1 R 2 R 3 and R 4 are selected from the group consisting of: alkyl groups, alkoxy groups, halogen atoms and aryl groups; and m, n, p and q are integers in the range of 0 to 3, and an electrophotosensitive material using the same as an electric charge transferring material. The phenylenediamine derivative is excellent in not only compatibility with binding resin but also electric charge transferring capability, particularly hole transferring capability. Therefore, a photosensitive material using the above derivative as an electric charge transferring material exhibits a higher sensitivity.
Inventors
- 👤 Toshiyuki Fukami
- 👤 Hideo Nakamori
- 👤 Keisuke Sumida
- 👤 Sakae Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/43; C07C211/54; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0675; G03G5/0679; G03G5/0681; G03G5/043; G03G5/047; G03G5/0601; G03G5/0609; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/06144; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0631; G03G5/09
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
102 words
An electrophotosensitive material comprising an electrophotosensitive layer provided on a conductive substrate, said electrophotosensitive layer is a single layer containing (i) a binding resin, (ii) an electric charge generating material and (iii) an electric charge transferring material, said electric charge transferring material containing a phenylenediamine derivative of the general formula: ##STR18## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 2
Dependent Claim
102 words
An electrophotosensitive material comprising an electrophotosensitive layer provided on a conductive substrate, said electrophotosensitive layer is a single layer containing (i) a binding resin, (ii) an electric charge generating material and (iii) an electric charge transferring material, said electric charge transferring material containing a phenylenediamine derivative of the general formula: ##STR18## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 3
Dependent Claim
103 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said electrophotosensitive layer is a single photosensitive layer containing (i) a binding resin, (ii) an electric charge generating material and (iii) an electric charge transferring material, said electric charge transferring material containing a phenylenediamine derivative of the general formula: ##STR19## wherein R 1 and R 4 are the same alkyl or aryl group; R 2 and R 3 are the same aryl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 at the same time.
Claim 4
Dependent Claim
103 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said electrophotosensitive layer is a single photosensitive layer containing (i) a binding resin, (ii) an electric charge generating material and (iii) an electric charge transferring material, said electric charge transferring material containing a phenylenediamine derivative of the general formula: ##STR19## wherein R 1 and R 4 are the same alkyl or aryl group; R 2 and R 3 are the same aryl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 at the same time.
Claim 5
Dependent Claim
104 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said photosensitive layer is a multi-layer electrophotosensitive layer comprising: an electric charge generating layer containing an electric charge generating material; and an electric charge transferring layer containing a phenylenediamine derivative of the general formula, as an electric charge transferring material: ##STR20## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 6
Dependent Claim
104 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said photosensitive layer is a multi-layer electrophotosensitive layer comprising: an electric charge generating layer containing an electric charge generating material; and an electric charge transferring layer containing a phenylenediamine derivative of the general formula, as an electric charge transferring material: ##STR20## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 7
Dependent Claim
104 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said photosensitive layer is a multi-layer photosensitive layer comprising: an electric charge generating layer containing an electric charge generating material; and an electric charge transferring layer containing a phenylenediamine derivative of the general formula, as an electric charge transferring material: ##STR21## wherein R 1 and R 4 are the same alkyl or aryl group; R 2 and R 3 are the same aryl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 at the same time.
Claim 8
Dependent Claim
104 words
An electrophotosensitive material comprising an electrophotosensitive layer, provided on a conductive substrate, said photosensitive layer is a multi-layer photosensitive layer comprising: an electric charge generating layer containing an electric charge generating material; and an electric charge transferring layer containing a phenylenediamine derivative of the general formula, as an electric charge transferring material: ##STR21## wherein R 1 and R 4 are the same alkyl or aryl group; R 2 and R 3 are the same aryl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 at the same time.
Claim 9
Dependent Claim
80 words
An electrophotosensitive material formed from an electric charge generating material and a charge transferring material, said charge transferring material comprising; a phenylenediamine derivative of the general formula (1A): ##STR22## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 10
Dependent Claim
80 words
An electrophotosensitive material formed from an electric charge generating material and a charge transferring material, said charge transferring material comprising; a phenylenediamine derivative of the general formula (1A): ##STR22## wherein R 1 and R 4 are the same alkyl group; R 2 and R 3 are the same alkyl group which is the same as or different from that of R 1 and R 4 ; and m, n, p and q are 1 or 2 at the same time.
Claim 11
Dependent Claim
17 words
An electrophotosensitive material according to claim 2 where said electric charge generating material is a phthalocyanine pigment.
Claim 12
Dependent Claim
17 words
An electrophotosensitive material according to claim 2 where said electric charge generating material is an azo pigment.
Claim 13
Dependent Claim
49 words
An electrophotosensitive material according to claim 2 wherein said electric charge generating material is in the amount of 0.1 to 50 parts by weight and said charge transferring material is in the amount of 20 to 500 parts by weight, for 100 parts by weight of said binding resin.
Claim 14
Dependent Claim
17 words
An electrophotosensitive material according to claim 4 where said electric charge generating material is a phthalocyanine pigment.
Claim 15
Dependent Claim
17 words
An electrophotosensitive material according to claim 4 where said electric charge generating material is an azo pigment.
Claim 16
Dependent Claim
55 words
An electrophotosensitive material according to claim 4 further comprising a binding resin and wherein said electric charge generating material is in the amount of 0.1 to 50 parts by weight and said charge transferring material is in the amount of 20 to 500 parts by weight, for 100 parts by weight of said binding resin.
Claim 17
Dependent Claim
17 words
An electrophotosensitive material according to claim 1, wherein said electric charge generating material is a phthalocyanine pigment.
Claim 18
Dependent Claim
17 words
An electrophotosensitive material according to claim 1, wherein said electric charge generating material is an azo pigment.
Claim 19
Dependent Claim
61 words
An electrophotosensitive material according to claim 1, wherein said single layer photosensitive layer contains an electric charge generating material in amount of 0.1 to 50 parts by weight, and contains an electric charge transferring material containing a phenylenediamine derivative of the formula (1) in amount of 20 to 500 parts by weight, for 100 parts by weight of a binding resin.
Claim 20
Dependent Claim
17 words
An electrophotosensitive material according to claim 3, wherein said electric charge generating material is a phthalocyanine pigment.
Claim 21
Dependent Claim
33 words
An electrophotosensitive material according to claim 3, wherein said multi-layer photosensitive layer is obtained by forming an electric charge generating layer on a conductive substrate and forming an electric charge transferring layer thereon.
Claim 22
Dependent Claim
50 words
An electrophotosensitive material according to claim 3, wherein said electric charge transferring layer contains an electric charge transferring material in amount of 10 to 500 parts by weight for 100 parts by weight of a binding resin, said electric charge transferring material containing a phenylenediamine derivative of the formula (1).
References Cited (Backward Citations)
US3615404A
Cited
US3879198A
Cited
US4346159A
Cited
US5087544A
Cited
US5185228A
Cited
US5246808A
Cited
US5258251A
Cited
US5213926A
Cited
US5272031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-26 | 1999-08-28 | 2000-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-26 | 2003-08-28 | 2004-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-26 | 2007-08-28 | 2008-02-27 | $7700.00 | Window Closed / Lapsed |