MATERIAL EQUIPPED WITH SYSTEM OF THIN LAYERS WITH THERMAL PROPERTIES Russian patent published in 2019 - IPC C03C17/36 

FIELD: chemistry.

SUBSTANCE: invention relates to a material containing a transparent substrate coated with a system of thin layers, and can be used, in particular, for glazing both in buildings and in vehicles. In particular, disclosed is a material containing a transparent substrate coated with a system of thin layers, comprising successive starting from the substrate, alternating three functional metal layers based on silver, denoted, counting first, second and third functional layers from substrate, wherein thickness of functional metal layers, starting from substrate, increases depending on distance from substrate, and alternation of four dielectric coatings, designated by counting from substrate as M1, M2, M3 and M4, wherein each dielectric coating comprises at least one dielectric layer, so that each functional metal layer is between two dielectric coatings. Dielectric coatings M1, M2, M3 and M4 have optical thickness Eo1, Eo2, Eo3 and Eo4. Each dielectric coating contains at least one dielectric layer with high refraction index, refraction index of which is at least 2.15 and optical thickness of which is more than 20 nm. Sum of the optical thicknesses of all dielectric layers with a high refraction index in the same dielectric coating is denoted, in accordance with the specific dielectric coating, as Eohi1, Eohi2, Eohi3 or Eohi4. Each dielectric coating satisfies the following relationship: Eohi1/Eo1 > 0.30, Eohi2/Eo2 > 0.30, Eohi3/Eo3 > 0.30, Eohi4/Eo4 > 0.30.

EFFECT: technical result is improved thermal properties and transmission properties.

15 cl, 7 dwg