ARTICLE WITH LOW-EMISSIVITY COATING HAVING LOW TRANSMITTANCE OF VISIBLE LIGHT Russian patent published in 2020 - IPC C03C17/36 

FIELD: technological processes.

SUBSTANCE: present invention relates to an article with a low-emission coating. In particular, disclosed is a coated article comprising a coating resting on a glass substrate. Said coating includes: first and second infrared (IR) radiation reflecting layers containing silver; a first contact layer containing NiCr disposed over the first IR-reflective layer; a dielectric layer containing silicon nitride located on the first contact layer containing NiCr; a second contact layer containing NiCr disposed over said layer containing silicon nitride; wherein the second IR-reflecting layer containing silver is located over the second contact layer containing NiCr; a third contact layer containing NiCr located above the second infrared-reflecting layer; and other dielectric layer containing silicon nitride located on third contact layer containing NiCr. At that, dielectric layer containing silicon nitride is separated with non-absorbing separating dielectric layer containing zirconium oxide ZrO₂, so that separating dielectric layer, containing zirconium oxide ZrO₂ is located between the first part of the dielectric layer containing silicon nitride and the second part of the dielectric layer containing silicon nitride.

EFFECT: increased durability, while providing low transmittance of visible light.

29 cl, 2 dwg