Dual purpose electrophotographic magnetic toner and process of making
US4288519A · kind A · utility
13Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1977 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0833
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A free-flowing, non-spherical, fragmentary, toner particle is prepared by blending a mixture of thermoplastic resins with magnetic iron oxide. The dispersion is processed to a fine powder and dry blended with conductive carbon black which is anchored onto the surface of the particle by warm air or gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.