Electrophotographic photoconductor

Patent metadata

Field	Value
Publication number	US-11106147-B2
Application number	US-202016896833-A
Country	US
Kind code	B2
Filing date	Jun 9, 2020
Priority date	Jul 12, 2019
Publication date	Aug 31, 2021
Grant date	Aug 31, 2021

Abstract

There is provided an electrophotographic photoconductor in which at least an undercoat layer and a photosensitive layer are laminated in an order mentioned on a conductive support,
wherein at least one of the undercoat layer and the photosensitive layer contains a compound represented by a formula A below:

wherein Y in the above formula A is a group represented by:

wherein R1 and R2 are each independently an alkyl group having 1 to 6 carbon atoms, m is an integer of 1 to 4, and X is each independently a group selected from a group 1 below:

wherein R3 to R8 in the above group 1 are each independently an alkyl group having 1 to 6 carbon atoms.

First claim

What is claimed is:

1. An electrophotographic photoconductor in which at least an undercoat layer and a photosensitive layer are laminated in an order mentioned on a conductive support,
wherein both the undercoat layer and the photosensitive layer contain a compound represented by a formula A below:

wherein Y in the above formula A is a group represented by:

wherein R1 and R2 are each independently an alkyl group having 1 to 6 carbon atoms, m is an integer of 1 to 4, and X is each independently a group selected from a group 1 below:

wherein R3 to R8 in the above group 1 are each independently an alkyl group having 1 to 6 carbon atoms.

2. The electrophotographic photoconductor according to claim 1 , wherein R3 to R5 in the group 1 are each independently a methyl group or an ethyl group.

3. The electrophotographic photoconductor according to claim 1 , wherein R6 to R8 in the group 1 are each independently an alkyl group having 3 to 5 carbon atoms.

4. The electrophotographic photoconductor according to claim 1 , wherein the undercoat layer further contains metal oxide particles.

5. The electrophotographic photoconductor according to claim 4 , wherein the metal oxide is at least one selected from the group consisting of titanium oxide, zinc oxide, tin oxide, and aluminum oxide.

6. The electrophotographic photoconductor according to claim 1 , wherein
the photosensitive layer includes a charge generation layer and a charge transport layer, and
at least the undercoat layer, the charge generation layer, and the charge transport layer are laminated in the order mentioned on the conductive support.

7. The electrophotographic photoconductor according to claim 6 , wherein the charge generation layer contains a titanyl phthalocyanine compound.

8. The electrophotographic photoconductor according to claim 6 , wherein
the charge transport layer contains at least one selected from the group consisting of compounds represented by the formulas 1 to 4 below:

wherein, in the formulas 1 to 4,
R a to R 1 are each independently an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon group, or a halogen atom, and
n1 to n12 are each independently an integer of 0 to 5.

9. The electrophotographic photoconductor according to claim 1 , wherein the undercoat layer has a thickness of 5 to 20 μm.

Assignees

• Konica Minolta Inc

Inventors

• Kudoh Koichi

Classifications

• G03G5/06142

  arylamine · CPC title

• G03G5/06144

  diamine · CPC title

• G03G5/0696

  Phthalocyanines · CPC title

• C07D471/16 Primary

  Peri-condensed systems · CPC title

• G03G5/0655 Primary

  containing six relevant rings · CPC title