초록 ▼

A lightweight, three dimensional structural article having low radar reflectivity characteristics and good mechanical properties is fabricated from a syntactic foam core having a structural outer skin. A syntactic foam sealing adhesive film is applied to the surface of syntactic foam core and under

A lightweight, three dimensional structural article having low radar reflectivity characteristics and good mechanical properties is fabricated from a syntactic foam core having a structural outer skin. A syntactic foam sealing adhesive film is applied to the surface of syntactic foam core and under the outer skin to both seal the foam core and adhere the outer skin. The syntactic foam sealing adhesive is formulated to provide a uniform layer and to reduce the fabrication time and labor while improving the overall radar absorbing characteristics of the structural article.

대표청구항 ▼

1. A three dimensional structural article comprising:a syntactic foam core having at least one exposed surface; an outer skin covering at least a portion of said exposed surface and having a dieletric constant of less than about 2.8; and a layer of a sealing adhesive film disposed between said expos

1. A three dimensional structural article comprising:a syntactic foam core having at least one exposed surface; an outer skin covering at least a portion of said exposed surface and having a dieletric constant of less than about 2.8; and a layer of a sealing adhesive film disposed between said exposed surface on said foam core and said outer skin, said sealing adhesive film comprising a syntactic foam sealing adhesive film for both sealing said foam core and adhering said foam core and said outer skin, said syntactic foam sealing adhesive film having a dieletric constant of less than about 2.5 and said foam core having a dieletric constant which is less than that of said syntactic foam sealing adhesive film.