摘要：

The invention is directed to an evacuated sheet for thermal insulation, comprising at least one sheet-like core of an open pore material, a signal applied to a major surface of the core, sheet-like filter material, a first large surface abutting a major surface of the core barrier film facing with at least one core sealing layer , a second, a large area adjacent to the filter material barrier film having at least one facing the filter material sealing layer, an all around running sealing seam, along which the two barrier films are sealed to each other, wherein the volume between the two barrier films and running all around the sealing seam is evacuated, and the filter material completely sealed into the sealing seam between the two barrier films; and a method for its manufacture, said loose powder or a solidified powder core is applied to a first barrier film over the sheet-like filter material is connected at the edge with the first barrier film so comes to rest a sheet-like filter material that the volume of powder is powder sealed, the powder is evacuated in a vacuum chamber to a pressure of 10 mbar or less, a second barrier film with the first barrier film in the vacuum is connected so that the internal volume is composed completed from a powder core and filter sheet material vacuum-tight, and finally the sheet material of the vacuum chamber after the aeration is removed.

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