Spacing profile for double-glazing unit
First Claim
1. 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, 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 layer of chromium, a layer of chromium alloy or a layer of colored lacquer coating, or a combination of a colored lacquer coating with either a layer of chromium or a layer of chromium alloy, wherein the corrosion preventing coating comprises a thickness which is lower by at least a factor of 2.5, as compared to the thickness of the metal foil.
3 Assignments
0 Petitions
Accused Products
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.
85 Citations
20 Claims
- 1. 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, 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 layer of chromium, a layer of chromium alloy or a layer of colored lacquer coating, or a combination of a colored lacquer coating with either a layer of chromium or a layer of chromium alloy, wherein the corrosion preventing coating comprises a thickness which is lower by at least a factor of 2.5, as compared to the thickness of the metal foil.
Specification