Method for making colored magnetic particles and their use in electrostatographic toner compositions
US5071724A · kind A · utility
5Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1991 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Feb 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides for a method for the preparation of colored magnetic particles for multicomponent toner compositions in which colors are produced by means of a chemical reaction of different metallic oxides formed on the surface of the magnetic particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.