Fiber reinforced resin molded articles for electromagnetic waves and method for production thereof
US4554204A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1983 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Nov 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3813
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided an FRP molded article having the properties of uniformly reflecting and shielding electromagnetic waves in the range of VHF to EHF. The molded article comprises a compression-molded laminated structure composed of an electroconductive nonwoven fabric-resin composite surface layer, a woven fabric-resin composite intermediate layer, and a fiber material reinforced resin substrate layer. The molded article can be produced by placing, on a mold, an electroconductive nonwoven fabric or a prepreg thereof, a woven fabric or a prepreg thereof, and then a mixture of a reinforcing fiber material and a liquid crosslink-curable resin composition thereon, and subjecting the laminated materials to compression molding. The molded articles can be advantageously used, for example, as reflecting dish antennas as well as shielding sheets or boards for electromagnetic waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.