Photoreceptor for electrophotography
First Claim
1. A photoreceptor for electrophotography comprising a first layer comprising:
- (A) a charge-generating material;
(B) a charge-transport material, wherein said charge-transport material is at least one of the compounds represented by the following formula (1);
##STR424## wherein each of Ar1 through Ar6 is a phenyl group which may or may not have one or more substituents which may be identical to or different from one another, and the substituent on any of the groups Ar1 through Ar6 is a group or an atom selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylamino, C1-C4 dialkylamino, C1-C4 alkylthio, C1-C4 halogenoalkyl, amino, and a halogen atom; and
each of R1 through R6 is a member selected from a group comprised of a hydrogen atom and a methyl group.
1 Assignment
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Accused Products
Abstract
A photoreceptor for electrophotography exhibits high photosensitivity and provides excellent potential stability and durability upon repeated use. The photoreceptor for electrophotography contains, as a charge-transport material, a triphenylamine derivative represented by the following formula (1) or (2) or the mixture thereof: ##STR1## wherein each of Ar1 through Ar10 is a phenyl group which may or may not have a substituent, and the substituent on any of the groups Ar1 through Ar10 is a group or an atom selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylamino, C1-C4 dialkylamino, C1-C4 alkylthio, C1-C4 halogenoalkyl, amino, and a halogen atom; each of R1 through R10 represents a hydrogen atom or a methyl group; each of R11 through R15 represents a hydrogen atom, a C1-C4 alkyl group, a C6-C14 aryl group, or a C7-C14 aralkyl group, wherein the substitutents R11 through R15 may be identical to or different from one another.
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Citations
8 Claims
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1. A photoreceptor for electrophotography comprising a first layer comprising:
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(A) a charge-generating material; (B) a charge-transport material, wherein said charge-transport material is at least one of the compounds represented by the following formula (1);
##STR424## wherein each of Ar1 through Ar6 is a phenyl group which may or may not have one or more substituents which may be identical to or different from one another, and the substituent on any of the groups Ar1 through Ar6 is a group or an atom selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylamino, C1-C4 dialkylamino, C1-C4 alkylthio, C1-C4 halogenoalkyl, amino, and a halogen atom; and
each of R1 through R6 is a member selected from a group comprised of a hydrogen atom and a methyl group. - View Dependent Claims (3)
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2. A photoreceptor for electrophotography, comprising:
(A) a first layer comprising a charge transport material, wherein said charge transport material is at least one of the compounds represented by the following formula (1);
##STR425## and (B) a second layer comprising a charge generating material.
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4. A photoreceptor for electrophotography comprising a first layer comprising:
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(A) a charge-generating material; (B) a charge-transport material, wherein said charge-transport material is at least one of the compounds represented by the following formula (2);
##STR426## wherein each of Ar7 through Ar10 is a phenyl group which may or may not have one or more substituents which may be identical to or different from one another, and the substituent on any of the groups Ar7 through Ar10 is a group or an atom selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylamino, C1-C4 dialkylamino, C1-C4 alkylthio, C1-C4 halogenoalkyl, amino, and a halogen atom; and
each of R7 through R10 is a member selected from a group comprised of a hydrogen atom and a methyl group, and each of R11 through R15, which may be identical to or different from one another, is a member selected from a group comprised of a hydrogen atom, a C1-C4 alkyl group, a C6-C14 aryl group, and a C7-C14 aralkyl group. - View Dependent Claims (6, 7, 8)
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5. A photoreceptor for electrophotography, comprising:
(A) a first layer comprising a charge transport material, wherein said charge transport material is at least one of the compounds represented by the following formula (1);
##STR427## and (B) a second layer comprising a charge generating material.
Specification