Electrophotographic photosensitive member, electrophotographic image forming apparatus, and method of producing electrophotographic photosensitive member
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United States of America Patent
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Nov 22, 2022
Grant Date -
Sep 30, 2021
app pub date -
Mar 23, 2021
filing date -
Mar 30, 2020
priority date (Note) -
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Abstract
Provided is an electrophotographic photosensitive member, which has high abrasion resistance and is resistant to being deeply flawed. Specifically, provided is an electrophotographic photosensitive member comprising a support and a surface layer formed on the support, wherein the surface layer comprises at least inorganic particles having pores in surfaces thereof, wherein at least a resin in the surface layer penetrates the pores, and wherein when vibration having a frequency of 0.5 Hz is applied to the surface layer at 28° C., the loss tangent tan δ of the dynamic viscoelasticity of the surface layer is from 0.005 to 0.05.
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