Structures exhibiting improved transmission of ultrahigh frequency electromagnetic radiation and structural materials which allow their construction
US5134421A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Sep 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31605
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Radomes having increased transparency and reduced reflectivity and refractivity to radar waves may be prepared or repaired utilizing heat-curable resin-containing structural materials in which the heat-curable resin contains greater than about 70 weight percent of cyanate functional monomers. The structural materials take the form of matrix resin impregnated prepegs and composites, film adhesives, paste adhesives, syntactic foams, and expandable foams, and may be used to prepare numerous useful structural features including honeycomb materials and leading edge radomes containing syntactic foams. The heat-curable resins further facilitate the preparation of low observable structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.