公开(公告)号：US3773604A

公开(公告)日：1973-11-20

申请号：US3773604D

申请日：1971-11-10

Applicant: BALSA ECUADOR LUMBER CORP

Inventor： DESAI R ,  DOHN G

IPC: F17C3/02 ,  F17C13/00 ,  B32B3/16 ,  B32B5/12 ,  B32B5/18 ,  B32B27/40 ,  B65D3/22 ,  E04C2/00

CPC classification number: B32B5/245 ,  B32B5/028 ,  B32B5/18 ,  B32B2305/38 ,  B32B2307/718 ,  B32B2605/00 ,  F17C3/022 ,  F17C13/001 ,  F17C2201/0119 ,  F17C2201/032 ,  F17C2201/052 ,  F17C2203/012 ,  F17C2203/0333 ,  F17C2203/0341 ,  F17C2203/0345 ,  F17C2203/0354 ,  F17C2203/0358 ,  F17C2203/0604 ,  F17C2203/0648 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2260/011 ,  F17C2260/033 ,  F17C2260/036 ,  F17C2270/011 ,  F17C2270/0147 ,  F17C2270/0171 ,  F17C2270/0173 ,  Y10S220/901 ,  Y10T428/166 ,  Y10T428/18 ,  Y10T428/187 ,  Y10T428/24066 ,  Y10T428/249966 ,  Y10T428/249981

Abstract: A structural light-weight panel of high strength, having thermal insulation properties that render the panel particularly suitable for cryogenic and elevated temperature applications. The panel is constituted by a composite core bonded to a carrier membrane or laminated to facing skins, the core including at least one layer formed by a series of balsa beams in spaced relation, the spacing between the beams being filled with slabs of an insulating material such as rigid foam plastic material whose k-factor is similar to that of balsa, whereby the overall thermal insulating characteristics of the composite core are effectively equivalent to that of a homogeneous core composed entirely of foam plastic material, whereas the structural characteristics of the composite core are far superior thereto. The panels are useable as liners for structural enclosures for the storage of fluids at cryogenic to high temperatures.