Structures exhibiting improved transmission of ultrahigh frequency electromagnetic radiation and structural materials which allow their construction

Abstract From the Canadian patent

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.