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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 cm³/(m²*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/m² relative to the base area of the vacuum insulation panel, and whose water vapor adsorption isotherm θ_H2O=θ_H2O(_PH2O)|_{T=23° C.} at a temperature of T=23° C. can be minimized, at least at low pressures p_H2O below the saturation vapor pressure p_H2O,sat at temperature T=23° C. and an atmospheric total pressure p=p_atm: p_H2OH2O,sat, by a Langmuir curve θ_H2O,L according to the formula θ_H2O=_H2O(p_H2O)|_{T=23° C.}>θ_H2O,L=K_L*p_H2O/[1+KL*p_H2O], where p_H2O is the water vapor partial pressure and θ_H2O=q/q_max is the proportion of the water vapor absorption q=m_H2O/m_TM>relative to the maximum water vapor absorption capacity q_max=m_H2O,max/m_TM of the material at temperature T=23° C., the Langmuir constant being K_L=10² bar⁻¹ or greater, preferably K_L=10³ bar⁻¹ or greater, in particular K_L=10⁴ bar⁻¹ or greater.

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First Claim