Electrostatographic toners and developers containing new charge-control agents
US4812381A · kind A · utility
17Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09766
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
New electrostatographic toners and developers are provided containing new charge-control agents comprising quaternary ammonium salts having the structure ##STR1## wherein R is alkyl having 12 to 18 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.