Addition of non-networked hole transport molecule to fluorinated structured organic film for improved corona resistance

Patent metadata

Field	Value
Publication number	US-9500968-B2
Application number	US-201514620053-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Feb 11, 2015
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

An overcoat layer comprises a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment, and an antioxidant is present in the SOF; and a hole transport molecule which does not form a network with the SOF.

First claim

What is claimed is:

1. An overcoat layer comprises:
a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment;
an antioxidant which does not form a network with the SOF; and
a hole transport molecule which does not form a network with the SOF, wherein the hole transport molecule comprises (bis [4-methoxymethyl]phenyl)phenylamine).

2. The overcoat layer of claim 1 , wherein the hole transport molecule is present in the SOF in an amount of from about 0.1% to about 20%.

3. The overcoat layer of claim 1 , wherein the antioxidant comprises bis(4-diethylamino-2-methylphenyl)-4-diethylaminophenylmethane.

4. The overcoat layer of claim 1 , wherein the antioxidant is present in the SOF in an amount of from about 0.25% to about 10%.

5. The overcoat layer of claim 1 , wherein the first fluorinated segment and the second electroactive segment are present in the SOF of the overcoat layer in an amount of from about 90 to about 99.5 percent by weight of the SOF.

6. The overcoat layer of claim 1 , wherein the overcoat layer is from about 2 to about 10 microns thick.

7. The overcoat layer of claim 1 , wherein the first fluorinated segment comprises

8. The overcoat layer of claim 1 , wherein the first fluorinated segment is obtained from a fluorinated building block selected from the group consisting of 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol, 2,2,3,3,4,4,5,5,6,6,7,7-dodecanfluoro-1,8-octanediol, 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-perfluorodecane-1,10-dial, (2,3,5,6-tetrafluoro-4-hydroxymethyl-phenyl)-methanol, 2,2,3,3-tetrafluoro-1,4-butanediol, 2,2,3,3,4,4-hexafluoro-1,5-pentanedial, and 2,2,3,3,4,4,5,5,6,6,7,7,8,8-tetradecafluoro-1,9-nonanediol.

9. The overcoat layer of claim 1 , wherein the first fluorinated segment is present in the SOF of the overcoat layer in an amount from about 30% to about 70% by weight of the SOF.

10. The overcoat layer of claim 1 , wherein the second electroactive segment is N4,N4,N4′,N4′-tetrakis(4-(methoxymethyl)phenyl)biphenyl-4,4′-diamine.

11. The overcoat layer of claim 1 , wherein second electroactive segment is present in the SOF of the outermost layer in an amount from about 30 to about 70 percent by weight of the SOF.

12. The overcoat layer of claim 1 , wherein the fluorine content of the imaging member is from about 5 to about 75 percent by weight of the imaging member.

13. An imaging member comprising:
a substrate;
a charge generating layer;
a charge transport layer; and
an overcoat layer comprises:
a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment; and
an antioxidant which does not form a network with the SOF; and
a hole transport molecule which does not form a network with the SOF, wherein the hole transport molecule comprises (bis [4-methoxymethyl]phenyl)phenylamine).

14. The imaging member of claim 13 , wherein the antioxidant comprises bis(4-diethylamino-2-methylphenyl)-4-diethylaminophenylmethane.

15. A xerographic apparatus comprising:
an imaging member comprising a plurality of layers, wherein an overcoat layer of the imaging layer is an imaging surface that comprises a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment and a second electroactive segment; and an antioxidant is present in the SOF; and a hole transport molecule which does not form a network with the SOF, wherein the hole transport molecule comprises (bis [4-methoxymethyl] phenyl)phenylamine);
a charging unit to impart an electrostatic charge on the imaging member;
an exposure unit to create an electrostatic latent image on the imaging member;
an image material delivery unit to create an image on the imaging member;
a transfer unit to transfer the image from the imaging member; and
an optional cleaning unit.

16. A xerographic apparatus of claim 15 , wherein the hole transport molecule is present in the SOF in an amount of from about 0.1% to about 20%.

17. A xerographic apparatus of claim 15 , wherein the first fluorinated segment comprises

Assignees

• Xerox Corp

Inventors

• Mcguire Gregory
• Klenkler Richard A
• Côté Adrien P
• Gagnon Yvan

Classifications

• G03G5/14795

  Macromolecular compounds characterised by their physical properties · CPC title

• G03G5/14769 Primary

  Other polycondensates comprising nitrogen atoms with or without oxygen atoms in the main chain · CPC title

• G03G5/14791

  Macromolecular compounds characterised by their structure, e.g. block polymers, reticulated polymers, or by their chemical properties, e.g. by molecular weight or acidity · CPC title

• G03G7/002

  Organic components thereof · CPC title

• G03G5/0764

  triarylamine · CPC title