An improved radio frequency wave attenuating wall (ceiling or floor) or door material comprises a laminated structure having as an integral part thereof one or more layers of a viscoelastic material which also functions as a glue and one or more electrically conducting layers. An electrically conducting...http://www.google.com/patents/US8029881?utm_source=gb-gplus-sharePatent US8029881 - Radio frequency wave reducing material and methods for manufacturing same
Radio frequency wave reducing material and methods for manufacturing same
