Dual purpose magnetic toner
US4345013A · kind A · utility
17Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1977 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Feb 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- 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.