초록 ▼

A glazing assembly is provided made of at least one transparent substrate having a stack thereon that includes an alternation of n functional layers and n+1 coatings, wherein the functional layers have reflection properties in the infrared and/or solar radiation and wherein n.gtoreq.1 and where, in

A glazing assembly is provided made of at least one transparent substrate having a stack thereon that includes an alternation of n functional layers and n+1 coatings, wherein the functional layers have reflection properties in the infrared and/or solar radiation and wherein n.gtoreq.1 and where, in order to maintain the quality of the stack when the substrate is subjected to a heat treatment step, at least one of the following must be satisfied:

대표청구항 ▼

[ We claim:] [1.] A glazing assembly comprising at least one transparent glass substrate and a stack of thin layers thereon, wherein said stack of thin layers comprises n functional layers having reflection properties in the infrared, in solar radiation or in both, and (n+1) coatings, wherein said c

[ We claim:] [1.] A glazing assembly comprising at least one transparent glass substrate and a stack of thin layers thereon, wherein said stack of thin layers comprises n functional layers having reflection properties in the infrared, in solar radiation or in both, and (n+1) coatings, wherein said coatings comprise one or more layers, at least one of which is made of a dielectric material, said functional layers and said coatings alternating so that each functional layer is placed between two coatings, wherein n.gtoreq.1;wherein, when the substrate is subjected to a heat treatment selected from the group consisting of toughening, bending and annealing, in order to preserve the optical quality of the stack at least one ofthe following must be satisfied:the coating placed on top of at least one of the functional layers includes at least one barrier layer comprising a material forming a barrier to at least oxygen and water, wherein said material is selected from the group consisting of SiO.sub.2, SiO.sub.x C.sub.y, SiO.sub.x N.sub.y, Si.sub.3 N.sub.4, and mixtures thereof; orat least one absorbent layer comprising a material capable of absorbing the constituent material of said functional layer or a layer that is stabilizing with respect to said constituent material forms at least a part of:(a) either the coating placed on top of the functional layer or under the barrier layer; or (b) the coating placed under the functional layer.