SHEET OF GLASS CARRYING MULTILAYER COATING Russian patent published in 2011 - IPC C03C17/36 

FIELD: construction.

SUBSTANCE: invention relates to a glass sheet carrying a multilayer coating, containing, at least one functional layer, based on a material that reflects infrared radiation, and at least two dielectric coatings, so that each functional layer is surrounded with dielectric coatings. According to the invention, dielectric coatings include at least one layer based on mixed oxide of zinc and tin, containing at least 20% of tin and at least one layer of diffusion barrier for oxygen with thickness of more than 5 nm. The dielectric coating arranged above the functional layer or the last functional layer, if there are several of them, contains at least one layer of diffusion barrier for oxygen with thickness of more than 5 nm, selected from the following materials: AlN, AlNxOy, Si₃N₄, SiOxNy, ZrN, SiC, SiOxCy, TaC, TiN, TiNxOy, TiC, CrC, DLC - diamond-like carbon and their alloys, and nitrides or oxynitrides of alloys, such as SiAlOxNy or SiTixNy. The other dielectric coating contains at least one layer of diffusion barrier for oxygen based on Si₃N₄, SiOxNy, AlN or AlOxNy. A glass sheet, according to the invention, may form a base for glasing with high heat insulation, which is especially suitable, for instance, in building and motor industry.

EFFECT: invention provides high selectivity of glass sheet and low reflection of light.

16 cl, 4 ex