Method for preparing electrophotographic photosensitive member
US7629102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Feb 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0525
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for preparing in high productivity and stably an electrophotographic photosensitive member having depressed portions on its surface, is provided. The method is characterized in that a coating liquid for a surface layer which includes a solvent including a hydrophilic solvent and a hydrophobic solvent and a polymer compound soluble in the hydrophobic solvent is used; the hydrophilic solvent has a boiling point equal to or higher than that of the hydrophobic solvent; the hydrophilic solvent has a dipole moment of 0 or more and less than 2.8, obtained by a structure optimized calculation using a semiempirical molecular orbital calculation; the total mass of the hydrophobic solvent is 50 mass % or more and less than 100 mass % of the total mass of the solvent included in the coating liquid for a surface layer; and after the coating liquid for a surface layer is applied, the depressed portions are formed by condensation on the surface on which the coating liquid for a surface layer is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.