Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same
US5660927A · kind A · utility
1Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/257
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides acicular fine particles made up of iron and carbon, and these acicular metal iron fine particles can be prepared by contacting acicular iron carbide fine particles with a reducing agent containing no carbon atom. Further, the present invention provides a magnetic coating composition and magnetic recording medium containing the above acicular metal iron fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.