New quaternary ammonium salts
US4834920A · kind A · utility
29Cited by
8References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 17, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Feb 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1138
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
New quaternary ammonium salts are provided having advantageous utility as charge agents in electrostatographic toners and developers. The salts have the structure ##STR1## wherein R is alkyl having 12 to 18 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.