Stable charge transport layer dispersion containing polytetrafluoroethylene particles and hydrophobic silica
A charge transport layer material for a photoreceptor includes at least a polycarbonate polymer, at least one charge transport material, polytetrafluoroethylene particle aggregates having an average size of less than about 1.5 microns, hydrophobic silica and a fluorine-containing polymeric surfactan...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | English |
Published |
04.12.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A charge transport layer material for a photoreceptor includes at least a polycarbonate polymer, at least one charge transport material, polytetrafluoroethylene particle aggregates having an average size of less than about 1.5 microns, hydrophobic silica and a fluorine-containing polymeric surfactant dispersed in a solvent. The presence of the hydrophobic silica enables the dispersion to have superior stability by preventing settling of the PTFE particles. A resulting charge transport layer produced from the dispersion exhibits excellent wear resistance against contact with an AC bias charging roll, excellent electrical performance, and delivers superior print quality. |
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Bibliography: | Application Number: US20000712184 |