Radio frequency absorbing shield and method
US5338617A · kind A · utility
21Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Nov 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12049
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for insulating metal powder particles comprises steps of placing the metal powder particles in a mixing container and adding a monomer in solution to the metal powder particles to form a mixture. The mixture is then stirred to provide an even consistency and is baked to remove solvents. The mixture is then stirred and the monomer is polymerized by exposing the monomer coated carbonyl iron particles to moist gas. The mixture is then ground to form a powder. The powder is suitable for incorporation into plastic resins for subsequent casting to form radio frequency shields having high DC resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.