ELECTROPHOTOGRAPHIC PHOTORECEPTOR - FUJI PHOTO FILM CO LTD

Title:

ELECTROPHOTOGRAPHIC PHOTORECEPTOR

Document Type and Number:

WIPO Patent Application WO/1992/018907

Kind Code:

A1

Abstract:

An electrophotographic photoreceptor improved in electrostatic characteristics and image pickup and particularly excellent in the reproduction of highly precise images by the use of a liquid developer and in the image pickup according to the scanning exposure system using low-output laser beams. The photoreceptor contains a binder resin comprising at least one resin (A) containing at least 30 wt% of a polymer component of general formula (I) and 0.5 to 15 wt% of a specified polar polymer component and having a weight average molecular weight of 1x10?3� to 2x10?4� and at least one resin (B) comprising an A-B block copolymer composed of block A containing a specified polar polymer component and block B containing a polymer component of general formula (I) and having a weight-average molecular weight of 3x10?4� to 1x10?6�. In formula (I) a?1� and a?2� represent each hydrogen, halogen, cyano, hydrocarbyl, or COOR?4� optionally bonded via hydrocarbyl (wherein R?4� represents hydrocarbyl); and R?3� represents hydrocarbyl.

Inventors:

KATO EIICHI (JP)
ISHII KAZUO (JP)

Application Number:

PCT/JP1992/000479

Publication Date:

October 29, 1992

Filing Date:

April 15, 1992

Export Citation:

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Assignee:

FUJI PHOTO FILM CO LTD (JP)

International Classes:

C08F293/00; C08F297/02; C08L53/00; G03G5/05; (IPC1-7): G03G5/05

Foreign References:

JPH0346665A	1991-02-27
JPH0342666A	1991-02-22
JPH0342665A	1991-02-22
JPH0339967A	1991-02-20
JPH0329954A	1991-02-07
JPH0317664A	1991-01-25
JPH0313951A	1991-01-22
JPH032870A	1991-01-09
JPH02167551A	1990-06-27
JPH02135457A	1990-05-24
JPH02127651A	1990-05-16
JPH02125266A	1990-05-14

Other References: