Laminated glazing unit and a process for manufacturing thereof with a corrosion-protected transparent surface coating

US7056586B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Walter Goerenz · Würselen, DE
• Ullrich Billert · Aachen, DE
• Dieter Linnhofer · Schnaittach, DE
• Walter Nievelstein · Landgraaf, NL
• Rolf Van Der Meulen · Herzogenrath, DE
• Volkmar Offermann · Eschweiler, DE

Key dates

• Filing date: May 9, 2001
• Grant date: Jun 6, 2006
• Expiry date: Nov 14, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B17/10293
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a process for manufacturing a laminated glazing unit including of at least two transparent panes, one of which is provided on its surface facing the inside of the composite with a corrosion-protected transparent surface coating. The panes are joined together by layers of adhesive. The transparent surface coating is removed along at least one edge of the coated pane in a region between 0.1 mm and 5 mm from the peripheral edge of the pane in the direction of the main surface of the pane, and a protective layer impermeable to the diffusion of water vapor, covering the external boundary edge of the transparent surface coating, is applied along that edge of the coated pane from which the coating has been removed. The invention also relates to a laminated glazing unit with a corrosion-protected transparent surface coating.