ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMK..................................RDIM360 (Ver 1.5 21 Nov 2005) - 1100000/00843054EUROPEAN PATENT APPLICATIONA319981202EP97120073.819971117itenenTO960931 19961119IT19981202199849199805201998216 6E 04C 2/296 AdeWärmedämmendes BaupaneelenA thermally insulating building panelfrPanneau de construction isolant2IBL S.p.A.02421010E2302-PRPiazzetta Guastalla, 720122 MilanoITBonzano, Bruno C.na Merli 61I-15030 Rosignano Monferrato(Allessandria)ITRambelli, Paoloet al00055471c/o JACOBACCI & PERANI S.p.A. Corso Regio Parco, 2710152 TorinoITATBECHDEDKESFIFRGBGRIEITLILUMCNLPTSEALLTLVMKROSI19981202199849

A thermally-insulating construction panel comprising two parallel, spaced outer slabs (14, 16) of wood-based material with a layer (18) of expanded, extruded thermal insulation material between them. The slabs (14, 16) of wood-based material have head portions which are substantially smooth and without joints. Connecting means are formed in the layer (18) of thermal insulation material to include a projecting portion (26) and a groove (28) which are at least twice as thick as each sheet of wood-based material (14, 16).