Hydrazone derivative of triphenylamine and electrophotographic photosensitive member

Patent metadata

Field	Value
Publication number	US-9454091-B2
Application number	US-201514739650-A
Country	US
Kind code	B2
Filing date	Jun 15, 2015
Priority date	Jun 27, 2014
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

A hydrazone derivative of triphenylamine is represented by general formula (1).

In general formula (1), R 1 and R 2 each represent, independently of one another, at least one chemical group selected from the group consisting of 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, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. In general formula (1), m and n each represent, independently of one another, an integer of at least 0 and no greater than 4. In general formula (1), 1 represents 0 or 1.

First claim

What is claimed is:

1. A hydrazone derivative of triphenylamine represented by general formula (1)

where, in the general formula (1), R 1 represents at least one chemical group selected from the group consisting of an ethoxy group, a phenoxy group, and a phenyl group, m represents 1, and l represents 1.

2. The hydrazone derivative of triphenylamine according to claim 1 , wherein
in the general formula (1), R 1 represents an ethoxy group.

3. The hydrazone derivative of triphenylamine according to claim 2 , wherein
the chemical group represented by R 1 in the general formula (1) is at an ortho or para substitution position.

4. The hydrazone derivative of triphenylamine according to claim 1 , wherein
in the general formula (1), R 1 represents a phenoxy group.

5. The hydrazone derivative of triphenylamine according to claim 1 , wherein
in the general formula (1), R 1 represents a phenyl group.

6. An electrophotographic photosensitive member comprising
a photosensitive layer containing a charge generating material, a charge transport material, and a binder resin, wherein
the photosensitive layer is either one of:
a multi-layer photosensitive layer including a charge generating layer that contains the charge generating material and a charge transport layer that contains the charge transport material and the binder resin, and in which the charge generating layer and the charge transport layer are stacked with the charge transport layer as an uppermost layer; and
a single-layer photosensitive layer containing the charge generating material, the charge transport material, and the binder resin, and

the charge transport material contained in the photosensitive layer is the hydrazone derivative of triphenylamine according to claim 1 .

7. The electophotographic photosensitive member according to claim 6 , wherein
the photosensitive layer contains the hydrazone derivative of triphenylamine according to claim 1 as a hole transport material, and
the photosensitive layer further contains a charge transport material that is an electron transport material.

Assignees

• Kyocera Document Solutions Inc

Inventors

• Okada Hideki
• Kojima Kensuke
• Sugai Fumio

Classifications

• G03G5/047

  characterised by the charge-generation layers or charge transport layers {(G03G5/0433 and G03G5/0436 take precedence)} · CPC title

• G03G5/0614

  Amines · CPC title

• C07C251/80

  the carbon skeleton containing rings · CPC title

• G03G5/0616 Primary

  Hydrazines; Hydrazones · CPC title

• G03G5/06147

  alkenylarylamine · CPC title