Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Patent
1988-06-17
1990-06-26
Friedman, Carl D.
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
52806, 52809, B32B 312
Patent
active
049371258
ABSTRACT:
The invention concerns a sandwich designed for making multilayer structures resistant to impact and thermal aggressions of the type including a core 2 interposed between an external skin 1 and an internal skin 3.
The external skin panel 1 consists of an assembly of at least three layers made integral by sealing or bonding: a first layer 4 made of composite material, a second layer 5 made of a synthetic cellular material with a low thermal conductivity coefficient, a third layer 6 obtained by lamination of a composite material. The second layer 5 consists of a honeycomb and the composite material of the first layer 4 and third layer 6 consists of glass fiber reinforced epoxy resin. A nonwoven polyester layer 7 is interposed between layers 4 and 5. The sandwich panel includes a metal sheet 8 adhering by cofusion to layer 5 via a thermal plastic film 9, said sheet being made of aluminum or aluminum alloy, steel or titanium which can be in the form of a film with a thickness below 1 mm.
Application to making a wall for construction, in particular of buildings.
REFERENCES:
patent: 4061812 (1977-12-01), Gilwee
patent: 4251579 (1981-02-01), Lee
patent: 4336090 (1982-06-01), Hilton
patent: 4557961 (1985-12-01), Gorges
Lepoetre Pierre H.
Sanmartin Marie-Louise
Etat Francais
Friedman Carl D.
Johnson Jerrold D.
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