Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
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United States of America Patent
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Jul 22, 2014
Grant Date -
Sep 27, 2012
app pub date -
Dec 2, 2010
filing date -
Dec 9, 2009
priority date (Note) -
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Abstract
The present invention provides an electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus, each of which has the electrophotographic photosensitive member. In the electrophotographic photosensitive member, a charge transport layer used as a surface layer contains a charge transport material, a polycarbonate resin A which has a specific amount of a specific repeating structural unit of a specific siloxane moiety, and a polyester resin C and/or a polycarbonate resin D, each of which has a specific repeating structural unit. In the charge transport layer, a matrix-domain structure is formed in which a matrix is formed from the charge transport material and the polyester resin C and/or the polycarbonate resin D, and domains are formed in the above matrix from the polycarbonate resin A.
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