US4784929A
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US
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Photosensitive member with hydrazone and/or azine charge transport material
Assignee: Minolta Co Ltd
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Filing: 1987-05-20
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Granted: 1988-11-15
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Expires: 2007-05-20
Abstract
Abstract The present invention relates to a photosensitive member containing a specific hydrazone compound or a specific azine compound for a charge transporting agent, which is improved in a sensitivity, chargeability, resistivity for repeated use and stability.
Inventors
- 👤 Hideaki Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0661; C; C09; C09B; C09B26/00; C09B26/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
222 words
A photosensitive member containing a hydrazone and/or an azine compound represented by one of the following general formulaes (I) and (II): ##STR16## wherein R 1 and R 2 independently are any of alkyl group, aralkyl group, aryl group and heterocyclic group, where each group may have a substituent; R 1 and R 2 may combinedly form a ring; R 3 is any of a hydrogen atom, alkyl group, aralkyl group, aryl group and heterocyclic group, where the aralkyl group, aryl group and heterocyclic group may have a substituent; X is represented by the formula: ##STR17## wherein R 4 and R 5 independently are any of a hydrogen atom, halogen atom, alkyl group, alkoxy group, aralkyl group, aryl group, aryloxy group, and aralkyloxy group, where each group may have a substituent; l and n independently are an integer 0 through 6; m is an integer 0 through 2; and Z is a heterocyclic group forming a ring containing a nitrogen atom, which may have a substituent; ##STR18## Wherein R 3 , X and Z are the same as in (I); R 6 and R 7 independently are any of a hydrogen atom, alkyl group, aryl group and heterocyclic group, where each group may have a substituent; and R 6 and R 7 may combinedly form a ring and further comprising a photoconductive material.
Claim 2
Dependent Claim
222 words
A photosensitive member containing a hydrazone and/or an azine compound represented by one of the following general formulaes (I) and (II): ##STR16## wherein R 1 and R 2 independently are any of alkyl group, aralkyl group, aryl group and heterocyclic group, where each group may have a substituent; R 1 and R 2 may combinedly form a ring; R 3 is any of a hydrogen atom, alkyl group, aralkyl group, aryl group and heterocyclic group, where the aralkyl group, aryl group and heterocyclic group may have a substituent; X is represented by the formula: ##STR17## wherein R 4 and R 5 independently are any of a hydrogen atom, halogen atom, alkyl group, alkoxy group, aralkyl group, aryl group, aryloxy group, and aralkyloxy group, where each group may have a substituent; l and n independently are an integer 0 through 6; m is an integer 0 through 2; and Z is a heterocyclic group forming a ring containing a nitrogen atom, which may have a substituent; ##STR18## Wherein R 3 , X and Z are the same as in (I); R 6 and R 7 independently are any of a hydrogen atom, alkyl group, aryl group and heterocyclic group, where each group may have a substituent; and R 6 and R 7 may combinedly form a ring and further comprising a photoconductive material.
Claim 3
Dependent Claim
28 words
The photosensitive member of claim 1, in which the group represented by the formula: ##STR19## is selected from the group consisting of 1,6-quinolinyl group, 1,5-indolinyl group and 1,5-benzoimidazolyl.
Claim 4
Dependent Claim
41 words
The photosensitive member of claim 1, in which R 1 and R 2 are independently phenyl, methyl, ethyl, benzyl, methoxy phenyl and ethoxy phenyl which may have a substituent, except that both R 1 and R 2 are not hydrogen atoms.
Claim 5
Dependent Claim
36 words
The photosensitive member of claim 1, in which R 6 and R 7 are independently phenyl, methyl, ethyl, benzyl, methoxy phenyl and ethoxy phenyl, dialkylaminophenyl, diphenylaminophenyl, N-methyl benzothiazolinyl, N-methyl benzoxazolinyl group, which may have a substituent.
Claim 6
Dependent Claim
35 words
The photosensitive member of claim 1, which consists essentially of a photosensitive layer comprising the hydrazone compounds and/or azine comound dissolved or dispersed together with a photoconductive material in a binder on a electroconductive substrate.
Claim 7
Dependent Claim
39 words
The photosensitive member of claim 1, which consists essentially of a charge generating layer, a charge transporting layer and an electroconductive substrate wherein the charge transporting layer consists of the hydrazone compound and/or azine compound dispersed in a binder.
Claim 8
Dependent Claim
32 words
The photosensitive member of claim 6, in which the hydrazone compounds and/or azine compound is contained at a proportion of 0.02-2 parts by weight against one part by weight of the binder.
Claim 9
Dependent Claim
35 words
The photosensitive member of claim 6, in which the thickness of the charge generating layer is about 3-30 micron meters, and the thickness of the charge transporting ayer is not more than 4 micron meters.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |