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Photoreceptor for electrophotography with low free chlorine content polycarbonate resin in organic photoconductive layer
| Details |
Inventors: Kanayama, Satoshi; Ogawa, Noriyoshi; Tajima, Jun;
Assignee: Mitsubishi Gas Chemical Company, Inc. (Tokyo, JP)
Primary Examiner: Goodrow; John
Assistant Examiner:
Attorney, Agent or Firm: Sughrue, Mion, Zinn, Macpeak & Seas
A photoreceptor for electrophotography which comprises a conductive substrate and a photoconductive layer on the conductive substrate, a polycarbonate resin containing free chlorine of 2 ppm or below being contained in the photoconductive layer. No minute black spots generate and an excellent quality of picture is provided. |
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DETAILED DESCRIPTION We claim: 1.
A photoreceptor for electrophotography which comprises a conductive substrate and a photoconductive layer on the conductive substrate, a polycarbonate resin containing free chlorine of 2 ppm or below being contained in the photoconductive layer.
2.
A photoreceptor for electrophotography according to claim 1, wherein the polycarbonate resin has a structure in which 10% (w/v) or above of the polycarbonate resin can be dissolved in a non-halogen-containing organic solvent.
3.
A photoreceptor for electrophotography according to claim 1, wherein the polycarbonate resin comprises at least one hisphenol selected from the group consisting of 2, 2-bis(4-hydroxy-3-methylphenyl) propane, 1,1-bis(4-hydroxyphenyl)-1-phenylethane, bis (4-hydroxyphenyl) diphenylmethane and 1, 1-bis(4-hydroxyphenyl)cyclohexane, a mixture of 4, 4'-dihydroxydiphenylether and 2, 2-bis(4-hydroxyphenyl) propane or a mixture of 4, 4'-dihydroxyldiphenylsulfide and 2, 2-bis (4-hydroxylphenyl) propane.
4.
A photoreceptor for electrophotography which comprises a conductive substrate and a charge generation layer and a charge transport layer on the conductive substrate, a polycarbonate resin containing free chlorine of 2 ppm or below being contained in the charge transport layer.
Description:
TECHNICAL FIELD The present invention relates to a photoreceptor for electrophotography, and more specifically, to a photoreceptor for electrophotography having a photoconductive layer containing a particular polycarbonate resin.
BACKGROUND ART Now, electrophotographic arts are widely applied to copying machines and various printers owing to their high speed and high quality of picture.
Hitherto, as a photoreceptor for electrophotography in the electrophotographic arts, inorganic photoconductive materials including selenium, selenium/tellurium alloys, selenium/arsenic alloys, cadmium sulfide, etc.
, have been mainly used.
However, recently, from the standpoints of toxicity, safety, price, productivity, etc, photoreceptors for electrophtography used organic photoconductive materials have been developed
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Optical Systems 
