Film-coated vacuum insulated panel
US9688048B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | May 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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 θH2O=θH2O(PH2O)|T=23° C. at a temperature of T=23° C. can be minimized, at least at low pressures pH2O below the saturation vapor pressure pH2O,sat at temperature T=23° C. and an atmospheric total pressure p=patm: pH2O<pH2O,sat, by a Langmuir curve θH2O,L according to the formula θH2O=H2O(pH2O)|T=23° C.>θ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.