A composite panel is formed from a honeycomb core panel with a foam material filling the tubular cells and a fibrous reinforcing cover sheets extending over the top and bottom of the panel. The cover sheets are filled with a set resin material which extends from the cover sheets into the porous fibrous...http://www.google.es/patents/US8062728?utm_source=gb-gplus-sharePatente US8062728 - Composite material formed from foam filled honeycomb panel with top and bottom resin filled sheets
Composite material formed from foam filled honeycomb panel with top and ...
