Patent ID: 6242088
Filing Date: 2001-06-05
Classification: B32B,G03C,Y10T

Abstract:
A process for the manufacture of a laminated safety glass pane which in reflected and/or transmitted light is free from wrinkle-related optical distortions, comprising a first glass pane, a corresponding second glass pane and a multi-layer intermediate layer, which intermediate layer in the form of a foil laminate consists of a first laminating foil, a bi-axially stretched thermoplastic carrier foil provided with a thin-film system, and a second laminating foil, with the characteristics:1.1) Placed on the first laminating foil is a carrier foil provided with the thin-film system, which1.11) has a thickness of 30 to 70 .mu.m and1.12) in both stretching directions displays a heat shrinkage degree of 0.3 to 0.8%, measured after a heat treatment of 20 seconds at 120.degree. C.,and the second laminating foil is placed on the carrier foil,1.2) the foils according to characteristic 1.1) are arranged wrinkle-free between the two glass panes and pressed, using pressure and heat, as well as joined to the glass panes, wherein within the framework of the measures according to 1.1) and/or 1.2) at least one deaeration is carried out.