HEAT-TREATABLE COATED PRODUCT WITH IR-REFLECTING LAYERS BASED ON TITANIUM NITRIDE AND ITO Russian patent published in 2021 - IPC C03C17/34 

FIELD: glazing.

SUBSTANCE: invention relates to coated products that are used for glazing. In particular, a coated product is proposed, including coating supported by glass substrate. Coating contains: the first dielectric layer containing silicon nitride on glass substrate; the first infrared (hereinafter – IR) reflecting layer containing indium tin oxide (ITO) on glass substrate, while the first dielectric layer containing silicon nitride is located between at least glass substrate and the first IR-reflecting layer containing ITO; the second dielectric layer containing silicon nitride on glass substrate on top of the first IR-reflecting layer containing ITO; the second IR-reflecting layer containing titanium nitride on glass substrate on top of the first and second dielectric layers, so that the second dielectric layer is located between and in direct contact with the first IR-reflecting layer containing ITO and the second IR-reflecting layer containing titanium nitride; the third dielectric layer containing silicon nitride on glass substrate on top of at least the second IR-reflecting layer containing titanium nitride. In this case, the first IR-reflecting layer containing ITO has thickness of 250-450 Å, and the second IR-reflecting layer containing titanium nitride has thickness of 130-300 Å. In addition, coating has normal radiation coefficient (En) of no more than 0.30. The coated product has when measured in monolith: visible light transmittance coefficient from about 15 to 80%, visible light reflection coefficient from the film side is not more than 10%, visible light reflection coefficient from the glass side is not more than about 30%, a* value when reflected from the glass side is from -10.0 to +1.6 and the ratio of light transmission to heat input from light to solar gain (LSG) is at least 1.10.

EFFECT: expansion of the arsenal of technical means for glazing with low value of solar factor (SF) and solar heat gain coefficient (SHGC).

50 cl, 1 dwg, 6 tbl