Electrically heatable laminated glass glazing for cars

US5850070A · kind A · utility

Assignee

• Saint-Gobain Vitrage · FR

Inventors

• Manfred Gillner · Aachen, DE
• Siegfried Pikhard · Roetgen, DE
• Luc Vanaschen · Eupen, BE
• Friedrich Triebs · Aachen, DE
• Karin Broring · Aachen, DE

Key dates

• Filing date: Nov 5, 1996
• Grant date: Dec 15, 1998
• Expiry date: Nov 5, 2016

Classification

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

Abstract

An electrically heatable laminated glass glazing includes an inner glass sheet, an outer glass sheet and an intermediate thermoplastic film interconnecting the two glass sheets. Collector conductors constituted by foil strips serve as power supply conductors for heating resistors are embedded in the intermediate film from the side adjacent to the inner glass sheet. The free surface of the inner glass sheet is provided with a decorative frame of an opaque baking ink. An opaque coating, whose color is adapted to that of the decorative frame, is joined to the surface of the foil strip directed towards the intermediate film. The coating is preferably constituted by an inked polymer sheet having a width slightly greater than that of the foil strip.