MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517033952 A) filed by Saint Gobain Glass France, Courbevoie, France, on April 7, for 'solar control glazing with high external reflection.'
Inventor(s) include Abadie Sacha; and Reymond Vincent.
The application for the patent was published on June 13, under issue no. 24/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a transparent glass item for solar control glazing comprising at least one glass substrate at least one of the faces of which is provided with a coating comprising the following series of layers starting from the surface of said substrate: a layer comprising a nitride of at least one element chosen from Si Al said nitride optionally comprising Zr having a physical thickness of between 1 and 25 nm; an infrared absorbing layer consisting of a material comprising niobium or of a material comprising nickel and chromium having a physical thickness of between 1 and 20 nm; a layer of which the optical thickness is between 60 and 100 nm comprising a nitride of at least one element chosen from Si Al said nitride further comprising Zr in contact with the infrared absorbing layer having a refractive index at 550 nm of greater than 2.2 or an assembly of layers of which the total optical thickness is between 60 and 100 nm said assembly comprising or consisting of a) a layer comprising a nitride of at least one element chosen from Si Al said nitride optionally comprising Zr in contact with the infrared absorbing layer and b) a layer of a dielectric material having a refractive index at 550 nm of greater than 2.2 having a physical thickness of greater than or equal to 15 nm."
The patent application was internationally filed on Nov. 20, 2023, under International application No.PCT/EP2023/082421.
Disclaimer: Curated by HT Syndication.