Spacing profile for double-glazing unit
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United States of America Patent
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Feb 27, 2001
Grant Date -
N/A
app pub date -
Apr 27, 1999
filing date -
Apr 27, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A spacing profile for a spacing frame, which is to be fitted in the edge area of a double-glazing unit, forming an interspace, with a profile body of a material possessing low thermal conductivity and with a diffusion-impermeable metal foil which is bonded to the profile body so as to establish a material fit, is characterized in that the metal foil is, at least on the surface facing away from the profile body, provided with a corrosion preventing coating which comprises a colored lacquer coating and/or a layer of chromium or of a chromium alloy, wherein the corrosion preventing coating comprises a thickness which is lower by at least a factor of 2.5, preferably by at least a factor of 10 and further preferred by at least a factor of 20, as compared to the thickness of the metal foil.
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