MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS

• US 20130130022A1
• Filed: 01/15/2013
• Published: 05/23/2013
• Est. Priority Date: 10/14/2011
• Status: Abandoned Application

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Uesugi, Tomoya, Tsuru, Seiji, Ishida, Kazutoshi, Satoh, Hidenori
• Application Number:
  US13/742,176
• Publication Number:
  US 20130130022A1
• Time in Patent Office: Days
• US Class Current: 428/336
• CPC Class Codes: B32B 9/00 Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
• CPC Class Codes: C09D 5/00 Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced electrically insulating plastics, resins or waxes H01B3/30; Filling pastes
• CPC Class Codes: G03G 2215/00957 Compositions
• CPC Class Codes: G03G 7/00 Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof photosensitive materials for photographic purposes G03C
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31587 Hydrocarbon polymer [polyethylene, polybutadiene, etc.]
• CPC Class Codes: Y10T 428/31598 Next to silicon-containing [silicone, cement, etc.] layer
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31938 Polymer of monoethylenically unsaturated hydrocarbon

Abstract

Provided are a member for electrophotography whose charge-providing performance for toner is stable even under a high-humidity environment, and a process cartridge and an electrophotographic apparatus each using the member for electrophotography. Specifically, provided are a member for electrophotography including a mandrel, an elastic layer, and a protective layer, in which the protective layer is a zinc oxide film containing both formula 1 —Zn—O—R (in the formula 1, R represents an alkyl group) and formula 2 —O—Zn—O—, and a process cartridge and an electrophotographic apparatus each using the member for electrophotography.

Claims

1. A member for electrophotography, comprising:

a mandrel;

an elastic layer; and

a protective layer,

wherein the protective layer comprises a zinc oxide film having a chemical bond represented by the following formula 1 and a chemical bond represented by the following formula 2;



Zn—

O—

R] 

 

(Formula

     1)

in the formula

     1), R represents an alkyl group



O—

Zn—

O

 

 

(Formula

     2).

2. The member for electrophotography according to claim 1, wherein the alkyl group R in the formula 1 has 1 or more and 4 or less carbon atoms.

3. The member for electrophotography according to claim 1, wherein the protective layer has a thickness of 100 nm or more and 1,000 nm or less.

4. The member for electrophotography according to claim 1, wherein the elastic layer comprises an epichlorohydrin-ethylene oxide-allyl glycidyl ether terpolymer or a silicone rubber.

5. The member for electrophotography according to claim 1, wherein:

the elastic layer has a stacked structure in which a first elastic layer and a second elastic layer are stacked in the mentioned order from the mandrel side;

the first elastic layer comprises an epichlorohydrin-ethylene oxide-allyl glycidyl ether terpolymer or a silicone rubber; and

the second elastic layer comprises a urethane resin.

6. A process cartridge, comprising the member for electrophotography according to claim 1, the process cartridge being attachable to and detachable from an electrophotographic apparatus.

7. An electrophotographic apparatus, comprising the member for electrophotography according to claim 1.

8. A member for electrophotography, comprising:

a mandrel;

an elastic layer; and

a protective layer,

wherein the protective layer comprises a zinc oxide film containing a structure represented by the following formula 3 and a structure represented by the following formula 4;

ZnO_2/2 

 

(Formula

     3)

ZnO_1/2(OC_nH_2n+1) 

 

(Formula

     4)

in the formula 4, n represents an average number of carbon atoms in the structure represented by the formula 4 in the zinc oxide film and represents a real number of 1 or more.