Resin-bonded magnetic composition and process for producing magnetic molding therefrom
US4808326A · kind A · utility
19Cited by
12References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 9, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Feb 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic composition which comprises 80 to 95 weight % of ferromagnetic powder, 5 to 20 weight % of highly heat-resistant thermosetting resin powder and 0.1 to 1 weight % of a metal chelate compound. Further, a process characterized in that all of the powders which comprise the magnetic composition are mixed together and molded under heat and pressure to produce a magnetic molding. The magnetic composition enables molding of materials of complicated form at low temperatures, and the obtained magnetic moldings are excellent in heat resistance, mechanical strength, mechanical workability and initial magnetic permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.