Coated glass pane

US12060751B2 · kind B2 · utility

Assignee

• Pilkington Group Limited · GB

Inventors

• Thomas Paul · Herne, DE
• Axel Nöthe · Castrop-Rauxel, DE
• TOBIAS BREIL · Dorsten, DE

Key dates

• Filing date: Dec 9, 2019
• Grant date: Aug 13, 2024
• Expiry date: Jul 10, 2040

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E06B2009/2417
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a transparent substrate comprising a multiple layer coating stack and the use of same in the manufacture of a double glazing unit, wherein the multiple layer coating stack comprises, n functional metal layer, m; and n plus 1 (n+1) dielectric layer, d, wherein the dielectric layers are positioned before and after each functional metal layer, and wherein n is the total number of functional metal layer in the stack counted from the substrate and is greater than or equal to 3; and wherein each dielectric layer comprises one or more layers, characterized in that the geometrical layer thickness of each functional metal layer in the coating stack Gm, is greater than the geometrical layer thickness of each functional metal layer appearing before it in the multiple layer coating stack, that is, Gmi+1>Gmi wherein i is the position of the functional metal layer in the coating stack counted from the substrate, and wherein for each dielectric layer d located before and after each functional metal layer m, the optical layer thickness of each dielectric layer (opln) is greater than or equal to the optical layer thickness of the dielectric layer (opln−1) positioned…