Triarylamine derivative and electrophotographic photosensitive member

Patent metadata

Field	Value
Publication number	US-9494881-B2
Application number	US-201514953190-A
Country	US
Kind code	B2
Filing date	Nov 27, 2015
Priority date	Nov 28, 2014
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

A triarylamine derivative is represented by general formula (1) shown below.

In general formula (1), each R 1 independently represents a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, or an optionally substituted aryl group having a carbon number of 6-12. Each k independently represents an integer of 0-4, and each m independently represents an integer of 1-3. Each R 2 independently represents a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, or an optionally substituted aryl group having a carbon number of 6-12. Each p independently represents an integer of 0-4.

First claim

What is claimed is:

1. A triarylamine derivative represented by general formula (1) shown below,

where, in the general formula (1),
each R 1 independently represents a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12,
each k independently represents an integer of at least 0 and no greater than 4,
each m independently represents an integer of at least 1 and no greater than 3,
each R 2 independently represents a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12, and
each p independently represents an integer of at least 0 and no greater than 4.

2. The triarylamine derivative according to claim 1 , wherein
the triarylamine derivative is any one of triarylamine derivatives HT-1 to HT-6 shown below.

3. The triarylamine derivative according to claim 1 , wherein
in the general formula (1), at least one R 1 or R 2 represents a methyl group.

4. An electrophotographic photosensitive member comprising
a conductive substrate and a photosensitive layer, wherein
the photosensitive layer contains the triarylamine derivative according to claim 1 .

5. The electrophotographic photosensitive member according to claim 4 wherein
the photosensitive layer is a single-layer type photosensitive layer in which a charge generating material, a hole transport material, an electron transport material, and a binder resin are contained in the same layer as one another, and
the hole transport material includes the triarylamine derivative.

6. The electrophotographic photosensitive member according to claim 5 , wherein
the charge generating material includes Y-form titanyl phthalocyanine.

7. An electrophotographic photosensitive member comprising
a conductive substrate and a photosensitive layer, wherein
the photosensitive layer contains the triarylamine derivative according to claim 2 .

8. The electrophotographic photosensitive member according to claim 7 wherein
the photosensitive layer is a single-layer type photosensitive layer in which a charge generating material, a hole transport material, an electron transport material, and a binder resin are contained in the same layer as one another, and
the hole transport material includes the triarylamine derivative.

9. The electrophotographic photosensitive member according to claim 8 , wherein
the charge generating material includes Y-form titanyl phthalocyanine.

10. An electrophotographic photosensitive member comprising
a conductive substrate and a photosensitive layer, wherein
the photosensitive layer contains the triarylamine derivative according to claim 3 .

11. The electrophotographic photosensitive member according to claim 10 wherein
the photosensitive layer is a single-layer type photosensitive layer in which a charge generating material, a hole transport material, an electron transport material, and a binder resin are contained in the same layer as one another, and
the hole transport material includes the triarylamine derivative.

12. The electrophotographic photosensitive member according to claim 11 , wherein
the charge generating material includes Y-form titanyl phthalocyanine.

Assignees

• Kyocera Document Solutions Inc

Inventors

• Okada Hideki
• Sugai Fumio
• Kojima Kensuke

Classifications

• C07C217/84 Primary

  the oxygen atom of at least one of the etherified hydroxy groups being further bound to an acyclic carbon atom · CPC title

• C07C211/54

  having amino groups bound to two or three six-membered aromatic rings · CPC title

• G03G5/0614 Primary

  Amines · CPC title

• G03G5/061473

  plural alkenyl groups linked directly to the same aryl group · CPC title

• G03G5/06145 Primary

  triamine or greater · CPC title