Method of making a curved glass pane of laminated glass

US5324373A · kind A · utility

Assignee

• Saint-Gobain Vitrage International · FR

Inventors

• Manfred Gillner · Aachen, DE
• Hubert Havenith · Würselen, DE
• Luc Vanaschen · Eupen, BE

Key dates

• Filing date: Jan 19, 1993
• Grant date: Jun 28, 1994
• Expiry date: Jan 19, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1002
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The subject of this invention is a method of making a curved glass pane of laminated glass, such as an automobile windshield, in which one of the two single glass sheets is provided, on the surface bearing against an intermediate layer, with a film of a baking finish. The baking finish is applied onto the inner face of the single glass sheet intended for the outside. The glass sheet, provided with the dried baking finish (i.e., a colored film), is laid, with the film upwards, onto the single glass sheet intended for the inside. The pair of glass sheets, in this arrangement, is prebent on a bending frame with simultaneous baking-in of the colored film. Subsequently, the two glass sheets are transposed and, in this transposed arrangement with the colored film on the inside, are finally bent in a second bending operation on a bending frame corresponding to the final shape of the outer sheet.