INSULATION PRODUCT OR DEVICE CONTAINING INSULATION ON FIBROUS SUBSTRATE Russian patent published in 2017 - IPC E04B1/78 F16L59/05 

FIELD: construction.

SUBSTANCE: insulation product comprising insulation on a fibrous substrate, wherein at least a part of the insulation on a fibrous substrate is enclosed in a gas-tight space comprising at least one gas having a thermal conductivity lower than air, the pressure in the gas-tight space substantially corresponding to the normal atmospheric pressure (about 1 atm); said at least one gas is selected among the following gases: carbon dioxide (CO₂), argon (Ar) and xenon (Xe); characterized in that the insulation product is represented by a mineral wool element covered with sheet metal, in which, between two large codirectional metal sheets, mineral wool layers with mineral wool fibers oriented in their longitudinal direction essentially perpendicular to said two large codirectional metal sheets are arranged, and the fact that the gas-tight space is formed between the two large codirectional metal sheets and the inner part of two extreme layers so that on the inner part of at least two extreme plates there is a gas-tight vertical membrane or a metal sheet with gas-tight attachment to said two large codirectional metal sheets (8, 9).

EFFECT: improved insulation properties.

3 cl, 3 dwg