COMPOSITE PANE WITH SUN-PROTECTIVE COATING AND HEAT RAY REFLECTING COATING Russian patent published in 2021 - IPC C03C17/00 B32B17/10 

FIELD: windows.

SUBSTANCE: invention relates to a composite pane with a sun-protective coating and a heat ray reflecting coating, as well as to an application thereof. The composite pane is comprised of an outer glass (1) with a surface (I) from the outside and a surface (II) from the side of the inner space, an inner glass (2) with a surface (III) from the outside and a surface (IV) from the side of the inner space, as well as a thermoplastic intermediate layer (3) connecting the surface (II) from the side of the inner space of the outer glass (1) with the surface (III) from the outside of the inner glass (2), wherein said composite pane has, between the outer glass (1) and the inner glass (2), at least one sun-protective coating (4), which essentially reflects or absorbs rays outside of the visible spectrum of solar emission, particularly infrared rays, and wherein said composite pane has, on the surface (IV) from the side of the inner space of the inner glass (2), a thermal emission reflecting coating (5), said composite pane has a transmittance coefficient A from 0.02 to 0.08, wherein the transmittance coefficient A is determined by the following formula (I): A=TL_{composite pane}/(TL_{glass with low-emission coating}×TE), wherein TL is the light transmission and TE is the power transmission, measured according to ISO 9050.

EFFECT: invention provides light transmission through the composite pane, perceived on the inner side of the inner glass, within the range of preferred values from 2 to 10%, constant light reflection below 6%, preferably below 4%, and also provides minimal possible value of TTS.

15 cl, 2 dwg, 2 tbl