Developer composition for electrophotography
US5252420A · kind A · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Jun 27, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09733
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a developer composition for electrophotography containing a binder resin comprising at least a polyester resin as the main component, a colorant and a bisphenol A alkylene oxide adduct, wherein said bisphenol A alkylene oxide adduct is contained in a ratio of not less than 1.0 part by weight and not more than 10.0 parts by weight to 100 parts by weight of the binder resin. The developer composition of the present invention possesses satisfactory low-temperature fixability and is excellent in offset resistance, storage stability and resin pulverizability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.