Positively charged toner compositions
US4792513A · kind A · utility
8Cited by
5References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | May 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0975
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A positively charged toner composition comprised of resin particles exhibiting a peak value molecular weight in each of the molecular weight regions of from about 5,000 to about 80,000, and from about 100,000 to about 2,000,000; a wax component with a weight average molecular weight of from about 500 to about 10,000; and a charge enhancing additive selected from the group consisting of alkyl pyridinium halides, organic sulfonates, organic sulfates, distearyl dimethyl ammonium methyl sulfate, behenyl trimethyl ammonium methyl sulfate, and distearyl methyl ethyl ammonium ethyl sulfate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.