Photosensitive member having photosensitive layer which comprises amino compound as charge transporting material
AssigneeMinolta Camera Kabushiki Kaisha
InventorsHideaki Ueda, Shigeaki Tokutake, Keiichi Inagaki, Yuki Shimada
Life of this patent
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Abstract
The present invention relates to an improvement of a photosensitive member having a photosensitive layer which contains a specific amino compound as a charge transporting material.
Claims9
A photosensitive member having a photosensitive layer formed on an electrically conductive substrate and comprising an amino compound represented by the following general formula as a charge transporting material and an azo compound represented by the following general formula as a charge generating material;
- ##STR41## in which Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 represent respectively an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- Ar.sub.1 and Ar.sub.2, and/or Ar.sub.3 and Ar.sub.4 may form a ring in combination;
- R.sub.1, R.sub.2 and R.sub.3 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom;
- X represents --O--, --S--, --N(R.sub.4)-- or --(R.sub.5)C(R.sub.6)-- (in which R.sub.4 represents an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group or an aryl group);
- ##STR42## in which R.sub.1 and R.sub.2 represent respectively a hydrogen atom, a halogen atom, a nitro group, a hydroxy group, an alkyl group or an alkoxy group;
- Ar.sub.1 represents an arylene group which may have a substituent;
- Cp.sub.1 and Cp.sub.2 represent respectively a residue of a coupler having a phenolic hydroxy group;
- p is 0 or 1.
A photosensitive member having a photosensitive layer formed on an electrically conductive substrate and comprising an amino compound represented by the following general formula [A] as a charge transporting material and a polycarbonate resin having a number average molecular weight of from 1.times.10.sup.4 to 1.times.10.sup.5 ;
- ##STR43## in which Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 represent respectively an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- Ar.sub.1 and Ar.sub.2, and/or Ar.sub.3 and Ar.sub.4 may form a ring in combination;
- R.sub.1, R.sub.2 and R.sub.3 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom;
- X represent --O--, --S--, --N(R.sub.4)-- or --(R.sub.5)C(R.sub.6)-- (in which R.sub.4 represents an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group or an aryl group).
A photosensitive member having a photosensitive layer formed on an electrically conductive substrate and comprising an amino compound represented by the following general formula [A] as a charge transporting material and a charge generating material consisting of the group selected from a pyrrolopyrrole compound represented by the following general formula [B], a compound represented by the following general formula [C] and a compound represented by the following general formula [D];
- ##STR44## in which Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 represent respectively an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- Ar.sub.1 and Ar.sub.2, and/or Ar.sub.3 and Ar.sub.4 may form a ring in combination;
- R.sub.1, R.sub.2 and R.sub.3 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom;
- X represent --O--, --S--, --N(R.sub.4)-- or --(R.sub.5)C(R.sub.6)-- (in which R.sub.4 represents an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group or an aryl group);
- ##STR45## in which R.sub.1 and R.sub.2 represent respectively an alkyl group, an aralkyl group, a cycloalkyl group or an aryl group, each of which may have a substituent;
- R.sub.3 and R.sub.4 represent respectively a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group;
- ##STR46## in which R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or an aryl group which may have a substituent;
- X.sub.2 represents an oxygen atom, a sulfur atom or a selenium atom;
- Z.sub.1 represents an anionic functional group;
- R.sub.5 and R.sub.6 and/or R.sub.8 and R.sub.9 may form a ring in combination;
- ##STR47## in which R.sub.10, R.sub.11, R.sub.12 and R.sub.13 represent respectively a hydrogen atom, a halogen atom, an alkoxy group, an alkyl group which may have a substituent or an aryl group which may have a substituent;
- R.sub.14, R.sub.15 and R.sub.16 represent respectively a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group which may have a substituent, a mercapto group which may have a substituent, a vinyl group which may have a substituent, an aryl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic group which may have a substituent, an aroyl group which may have a substituent, an alkoxycarbonyl group which may have a substituent or --NHR.sub.17 ;
- R.sub.17 represents an alkyl group, a cycloalkyl group, an aralkyl group which may have a substituent or an aryl group which may have a substituent;
- X.sub.3 represents an oxygen atom, a sulfur atom or a selenium atom;
- Z.sub.2 represents an anionic functional group.
A photosensitive member having a photosensitive layer formed on an electrically conductive substrate and comprising an amino compound represented by the following general formula [A] as a charge transporting material and a polycarbonate resin represented by the following general formula [E];
- ##STR48## in which Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 represent respectively an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- Ar.sub.1 and Ar.sub.2, and/or Ar.sub.3 and Ar.sub.4 may form a ring in combination;
- R.sub.1, R.sub.2 and R.sub.3 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom;
- X represent --O--, --S--, --N(R.sub.4)-- or --(R.sub.5)C(R.sub.6)-- (in which R.sub.4 represents an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group or an aryl group);
- ##STR49## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 represent respectively a hydrogen atom, an alkyl group, an aryl group or a halogen atom;
- R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group which may have a substituent;
- R.sub.5 and R.sub.6 may form a ring in combination;
- R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16, R.sub.17 and R.sub.18 represent respectively a hydrogen atom, an alkyl group, an aryl group or a halogen atom;
- m is an integer of 0-500;
- n is an integer of 5-100.
Dependencies are inferred from the claim text.