Conductive member, electrophotographic apparatus, and process cartridge
US8622881B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0233
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The conductive member has a conductive support and a conductive elastic layer. The elastic layer is a mixture containing an electron conductive agent and a binder polymer, or a cured product thereof, and the electron conductive agent contains a carbon black satisfying the following characteristics: (i) an average primary particle diameter is 20 nm or more and 30 nm or less; (ii) a DBP oil absorption is 40 ml/100 g or more and 70 ml/100 g or less, and the total amount of CO and CO2 generated by temperature programmed desorption/mass spectrometry is 0.30 mass % or more and 0.80 mass % or less with reference to the carbon black; and (iii) the amount of SO2 generated by the temperature programmed desorption/mass spectrometry is 0.05 mass % or more with reference to the carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.