Transparent pane having a heatable coating

US10336298B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Susanne Lisinski · Cologne, DE
• Martin Melcher · Mountain View, US
• Volkmar Offermann · Eschweiler, DE
• Andreas Schlarb · Herzogenrath, DE

Key dates

• Filing date: Jul 6, 2011
• Grant date: Jul 2, 2019
• Expiry date: Jun 6, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2203/016
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A transparent pane with a conductive coating extending at least over a part of the transparent pane surface, in particular over a visual field of the transparent pane is described. The conductive coating is electrically connected to at least two strip-shaped bus bars such that after application of a supply voltage, a current flows over a heating field formed by the conductive coating. The conductive coating has an electrical resistance such that upon application of a supply voltage in the range from more than 100 volts to 400 volts, a heating output from the heating field is in the range from 300 watt/m2 to 1000 watt/m2. The at least two strip-shaped bus bars have a maximum width of less than 5 mm and are dimensioned such that a maximum electrical power loss per unit of length is 10 watt/m. Moreover, the at least two strip-shaped bus bars have a specific resistivity ranging from 2 μohm·cm to 4 μohm·cm.