Glazing provided with stacked thin layers which reflect infrared rays and/or solar radiation
First Claim
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1. A glazing assembly comprising at least one transparent substrate, provided with a thin-film multilayer comprising, in the following order starting from the substrate:
- (a) a first dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and comprising silicon nitrides;
(b) a lower stabilizing layer made of at least one metal or metal alloy X selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals;
(c) a functional layer having reflection properties in the infrared and/or in the solar radiation;
(d) an upper metal blocking layer made of at least one metal or metal alloy Y selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals;
(e) a second dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; and
(f) optionally, a protective oxide layer;
in which multilayer the metal or alloy X of the lower stabilizing layer is different from the metal or alloy Y of the upper blocking layer.
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Abstract
The invention relates to a glazing assembly comprising at least one transparent substrate, especially made of glass, provided with a thin-film multilayer comprising, in the following order starting from the substrate, at least:
- (a) a first dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides;
- (b) a lower stabilizing layer made of a metal or metal alloy X;
- (c) a functional layer having reflection properties in the infrared and/or in the solar radiation, especially a metal layer;
- (d) an upper metal blocking layer made of a metal or metal alloy Y;
- (e) a second dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; and
- (f) optionally, a protective oxide layer;
in which multilayer the metal or alloy X of the lower stabilizing layer is different from the metal or alloy Y of the upper blocking layer.
28 Citations
21 Claims
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1. A glazing assembly comprising at least one transparent substrate, provided with a thin-film multilayer comprising, in the following order starting from the substrate:
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(a) a first dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and comprising silicon nitrides; (b) a lower stabilizing layer made of at least one metal or metal alloy X selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals; (c) a functional layer having reflection properties in the infrared and/or in the solar radiation; (d) an upper metal blocking layer made of at least one metal or metal alloy Y selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals; (e) a second dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; and (f) optionally, a protective oxide layer;
in which multilayer the metal or alloy X of the lower stabilizing layer is different from the metal or alloy Y of the upper blocking layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification