ARTICLE WITH A COMPATIBLE LOW-EMISSION COATING WITH AN ALLOYED SEED LAYER UNDER SILVER (VARIANTS) Russian patent published in 2022 - IPC B32B15/04 C03C17/36 B32B17/06 

FIELD: coatings.

SUBSTANCE: group of inventions relates to articles with a low-emission coating with the same colour characteristics when viewed with the naked eye both before and after heat treatment (e.g., heat quenching). The article includes a coating on a glass substrate. Said coating therein comprises a first crystalline or substantially crystalline layer, a first infrared (IR) emission-reflecting layer, a layer containing silicon and zirconium oxide. The first crystalline or substantially crystalline layer therein comprises zinc oxide alloyed with 1 to 30% wt. Sn, provided on a glass substrate. The first infrared (IR) emission-reflecting layer comprises silver and is located on a glass substrate and directly on top of and in contact with the first crystalline or substantially crystalline layer. The layer containing silicon and zirconium oxide is located under and directly in contact with the first crystalline or substantially crystalline layer, so that no layer based on silicon nitride is located directly under and in contact with the first crystalline or substantially crystalline layer. The coated article is therein configured to obtain, when measured continuously, at least one of: (i) the value ΔE* when transmitting of no more than 3.0 as a result of control heat treatment for 8 minutes at a temperature of 650 degrees Celsius, (ii) the value of ΔE* when reflecting from the side of glass of no more than 3.0 as a result of control heat treatment for 8 minutes at a temperature of 650 degrees Celsius, and (iii) the value of ΔE* when reflected from the side of film of no more than 3.5 as a result of control heat treatment for 8 minutes at a temperature of 650 degrees Celsius.

EFFECT: increase in the characteristics of transmission of visible light, increase in the strength before and/or after heat treatment and/or a low value of ΔE*.

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