US5077162A
Expired / Lapsed
US
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Photosensitive member
Assignee: Minolta Co Ltd
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Filing: 1990-06-07
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Granted: 1991-12-31
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Expires: 2010-06-07
Abstract
Abstract The present invention relates to a photosensitive member containing a specific styryl compound for a charge transporting material, which is improved in photographic properties such as photosensitivity and repeating properties. The styryl compound represented by the following formula [X]; <IMAGE> [X] in which R11, R12, R16 and R17 represent independently an alkyl group, an aralkyl group or an aryl group, each of which may have a substituent; R13, R15 and R18 represent independently a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; R14 and R19 represent independently an alkyl group or an alkoxy group; l or n is an integer of 1, 2 or 3; m is an integer of 0, 1 or 2, is particularly excellent in the improvement of the sensitivity.
Inventors
- 👤 Hideaki Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:12
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0666; G03G5/0672; C; C09; C09B; C09B23/00; C09B23/14; C09B23/141; G03G5/0674
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
125 words
A photosensitive member with a photosensitive layer on or over an electrically conductive substrate, in which the photosensitive layer comprises a styryl compound which functions as a charge transporting material represented by the following formula [X]; ##STR38## in which R 11 , R 12 , R 16 and R 17 represent independently an alkyl group, aralkyl group or an aryl group, each of which may have a substituent; R 13 , R 15 and R 18 represent independently a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; R 14 and R 19 represent independently an alkyl group or an alkoxy group; 1 or n is an integer of 1, 2 or 3; m is an integer of 0, 1 or 2.
Claim 2
Dependent Claim
125 words
A photosensitive member with a photosensitive layer on or over an electrically conductive substrate, in which the photosensitive layer comprises a styryl compound which functions as a charge transporting material represented by the following formula [X]; ##STR38## in which R 11 , R 12 , R 16 and R 17 represent independently an alkyl group, aralkyl group or an aryl group, each of which may have a substituent; R 13 , R 15 and R 18 represent independently a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; R 14 and R 19 represent independently an alkyl group or an alkoxy group; 1 or n is an integer of 1, 2 or 3; m is an integer of 0, 1 or 2.
Claim 3
Dependent Claim
35 words
A photosensitive member of claim 1, in which R 11 , R 12 , R 16 and R 17 represent independently a C1-C4 alkyl group, a benzyl group, a phenethyl group or a phenyl group.
Claim 4
Dependent Claim
37 words
A photosensitive member of claim 1, in which R 13 , R 15 and R 18 represent independently a hydrogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group or a halogen atom.
Claim 5
Dependent Claim
28 words
A photosensitive member of claim 1, in which R 14 and R 19 represent independently a methyl group, an ethyl group, a methoxy group or an ethoxy group.
Claim 6
Dependent Claim
21 words
A photosensitive member of claim 1, in which the thickness of the photosensitive layer is within the range of 3-30 μm.
Claim 7
Dependent Claim
35 words
A photosensitive member of claim 1, in which the photosensitive layer comprises a charge generating layer and a charge transporting layer, in which the thickness of the charge generating layer is 4 μm or less.
Claim 8
Dependent Claim
55 words
A photosensitive member of claim 1, in which the photosensitive layer comprises a charge generating layer and a charge transporting layer, in which the charge transporting layer contains the styryl compound dispersed in binder resin at the content of 0.02-2 parts by weight on the basis of 1 part by weight of the binder resin.
Claim 9
Dependent Claim
31 words
A photosensitive member of claim 1, further comprising an intermediate layer between the electrically conductive substrate and the photosensitive layer, the thickness of the intermediate layer being 1 μm or less.
Claim 10
Dependent Claim
28 words
A photosensitive member of claim 1, furhter comprising a surface protective layer on the photosensitive layer, the thickness of the surface protective layer being 5 μm or less.
Claim 11
Dependent Claim
34 words
A photosensitive member of claim 9, in which the surface protctive layer is a resin layer, a resin layer containing a compound of low electrical conductivity or a plasma-polymerized layer of an organic compound.
Claim 12
Dependent Claim
19 words
A photosensitive member of claim 1, in which the photosensitive layer contains the styryl compound dispersed in binder resin.
Claim 13
Dependent Claim
37 words
A photosensitive member of claim 11, in which the styryl compound is contained at the content of 0.01-2 parts by weight on the basis of 1 part by weight of the binder resin in the photosensitive layer.
Claim 14
Dependent Claim
19 words
A photosensitive member of claim 11, in which the binder resin is polyether resin, polycarbonate resin or acrylic resin.
Claim 15
Dependent Claim
21 words
A photosensitive member of claim 11, in which the photosensitive layer contains a charge generating material dispersed in the binder resin.
Claim 16
Dependent Claim
38 words
A photosensitive member of claim 14, in which the charge generating material is contained at the content of 0.01-2 parts by weight on the basis of 1 part by weight of the binder resin in the photosensitive layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-30 | 1995-07-01 | 1995-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-30 | 1999-07-01 | 1999-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-30 | 2003-07-01 | 2003-12-31 | $7700.00 | Window Closed / Lapsed |