Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, image forming apparatus, and polyarylate resin
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United States of America Patent
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Jan 22, 2019
Grant Date -
May 5, 2016
app pub date -
Jan 11, 2016
filing date -
Jul 12, 2013
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Abstract
An electrophotographic photoreceptor comprises a conductive support and, at least a photosensitive layer on the conductive support, wherein the photosensitive layer includes a polyarylate resin and the polyarylate resin has a repeating structure represented by formula (1), and the amount of bisphenol residues represented by formula (3) after the polyarylate resin is hydrolyzed, is 0.2% to 1%, in terms of intensity ratio, based on the total amount of bisphenol residues represented by formula (2) and formula (3) after the polyarylate resin is hydrolyzed, the bisphenol residues being detected with a gas chromatograph employing a hydrogen flame ionization detector (FID).
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