Film-coated vacuum insulated panel

Abstract

The invention relates to a film-coated vacuum insulation panel comprising at least one inner core, at least one outer film which encloses the inner core, an inner film situated between the inner core and the outer film, and from which the outer film is raised at least in areas, preferably on all sides, by means of a shell material, the inner film and/or outer film being designed as an air-tight barrier film, wherein a) at least the inner film includes at least one ply made of an ethene-vinyl alcohol copolymer, preferably metallized, in particular having a permeation value of 0.003 cm/(m*d) or less under standard conditions (23° C., 50% external relative humidity), and b) wherein the shell material includes a drying agent which is present with a surface density of at least 100 g/mrelative to the base area of the vacuum insulation panel, and whose water vapor adsorption isotherm θ=θ()|at a temperature of T=23° C. can be minimized, at least at low pressures pbelow the saturation vapor pressure pat temperature T=23° C. and an atmospheric total pressure p=p: p<p, by a Langmuir curve θaccording to the formula θ=(p)|>θ=K*p/[1+KL*p], where pis the water vapor partial pressure and θ=q/qis the proportion of the water vapor absorption q=m/m>relative to the maximum water vapor absorption capacity q=m/mof the material at temperature T=23° C., the Langmuir constant being K=10baror greater, preferably K=10baror greater, in particular K=10baror greater.