Vacuum insulation board and method for producing the same

摘要

A vacuum insulated panel comprises a filler and a vacuum-tight high-barrier film envelope, with an air-permeable sheet element that serves as a filter material for dust, wherein the sheet element consists of the same material as the sealing layer of the high-barrier film enveloping the vacuum insulated panel and passes through the sealing seams of the high-barrier film, and to a method for producing such a vacuum insulated panel, wherein the sheet element, in the form of a strip preferably folded along a central axis, is placed between two sealing films and is thermally adhesively bonded to the inwardly disposed sealing layers of the sealing films such that a joint is formed between the two sealing films which are sealed together by means of a respective seam on each of perpendicular sides, the strip-shaped sheet element being co-sealed into the seams.

主权项

1. A vacuum insulated panel comprising a filler and a vacuum-tight barrier film envelope with an air permeable sheet element that serves as a filter material for dust, particularly for dust-tight sealing of an evacuation opening, wherein said sheet element
(a) is fabricated with the same material as a sealing layer of said vacuum-tight barrier film enveloping the vacuum insulated panel in the form of a woven fabric or non-woven fabric, and (b) passes through at least two sealing seams whereby each of the at least two sealing seams joins the sealing layers of two sections of said vacuum-tight barrier film together.